{"id":21036,"date":"2025-09-09T12:12:24","date_gmt":"2025-09-09T10:12:24","guid":{"rendered":"https:\/\/www.savetheproof.com\/firma-ltv-long-term-validation-la-firma-digital-que-no-caduca\/"},"modified":"2025-09-10T11:00:10","modified_gmt":"2025-09-10T09:00:10","slug":"ltv-signature-that-never-expires","status":"publish","type":"post","link":"https:\/\/www.savetheproof.com\/en\/ltv-signature-that-never-expires\/","title":{"rendered":"LTV Signature (Long-Term Validation): The digital signature that never expires"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--link_color: var(--awb-color5);--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-bottom:40px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><p>Ensuring the <strong>integrity and authenticity of electronic documents<\/strong> is essential. Digital signatures play a key role in this process, but a critical question arises: How can their validity be maintained over time?<\/p>\n<\/div><div class=\"fusion-text fusion-text-2\"><p>Signing a document should be synonymous with <strong>permanent trust<\/strong>, not just for a limited period. However, in the digital environment, that promise <strong>can easily be broken<\/strong>, and the signature may lose its evidentiary value if any of the following occur:<\/p>\n<\/div><ul style=\"--awb-item-padding-top:1em;--awb-item-padding-bottom:1.5em;--awb-line-height:27.2px;--awb-icon-width:27.2px;--awb-icon-height:27.2px;--awb-icon-margin:11.2px;--awb-content-margin:38.4px;--awb-circlecolor:#f2491f;--awb-circle-yes-font-size:14.08px;\" class=\"fusion-checklist fusion-checklist-1 type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-exclamation fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"822\" data-end=\"885\"><strong>Expiration of the signer\u2019s certificate.<\/strong><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">\ud83d\udc49\u00a0Every digital signature is based on a certificate issued by a certification authority. This certificate has a validity period. Once it expires, the signature still exists, but it <strong>can no longer be directly verified with that certificate<\/strong> without additional evidence.<\/span><\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-exclamation fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"888\" data-end=\"932\"><strong>Revocation or disappearance of the Certification Authority.<\/strong><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">\ud83d\udc49 If the certification authority that issued the certificate ceases to operate or revokes the certificate, the signature loses its backing and <strong>no one can directly confirm its authenticity.<\/strong><\/span><\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-exclamation fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"935\" data-end=\"990\"><strong>Loss of validity evidence.<\/strong><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">\ud83d\udc49 To validate a signature, revocation lists (CRLs) or OCSP responses are required. If this data is not preserved, <strong>the signature cannot be verified<\/strong>, even if the document remains intact.<\/span><\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-exclamation fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"935\" data-end=\"990\"><strong>Change or disappearance of certification authorities.<\/strong><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">\ud83d\udc49 If the authority that issued the certificate ceases to exist, it may be impossible to verify the signature without a timestamp or additional evidence.<\/span><\/p>\n<\/div><\/li><\/ul><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:15px;margin-bottom:20px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:0px;border-bottom-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-3\"><p><strong>Long-Term Validation (LTV)<\/strong> emerges to address this fragility.<\/p>\n<p>This technology allows a digital signature <strong>to preserve its evidentiary value and authenticity for years<\/strong>, without relying on external factors. In other words, a document with an LTV signature <strong>not only certifies the fact but also protects it and maintains its validity over time.<\/strong><\/p>\n<\/div><div class=\"fusion-text fusion-text-4\"><blockquote>\n<p>At <strong><a href=\"https:\/\/www.savetheproof.com\/en\/\" target=\"_blank\" rel=\"noopener\">SaveTheProof<\/a><\/strong>, our position is clear: trust in evidence <strong>cannot depend on third parties<\/strong>. That\u2019s why every certificate generated on our platform incorporates advanced <strong>digital signature with LTV<\/strong>, ensuring that any proof <strong>remains verifiable over time<\/strong>, no matter when or where it is accessed.<\/p>\n<\/blockquote>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:var(--awb-typography1-line-height);\"><h2>How does an LTV digital signature work?<\/h2><\/h2><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-5\"><p>An LTV digital signature <strong>not only electronically signs a document<\/strong> but also embeds all the information required to ensure the signature <strong>remains verifiable in the future<\/strong>, even if certificates expire or issuing authorities no longer exist.<\/p>\n<p>This is achieved by integrating into the document:<\/p>\n<\/div><ul style=\"--awb-item-padding-top:1em;--awb-item-padding-bottom:1.5em;--awb-line-height:27.2px;--awb-icon-width:27.2px;--awb-icon-height:27.2px;--awb-icon-margin:11.2px;--awb-content-margin:38.4px;--awb-circlecolor:#308fce;--awb-circle-yes-font-size:14.08px;\" class=\"fusion-checklist fusion-checklist-2 type-icons\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-pen-nib fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"822\" data-end=\"885\">The signer\u2019s digital certificate.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-pen-nib fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"888\" data-end=\"932\">The full certification chain (intermediate and root).<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-pen-nib fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"935\" data-end=\"990\">Validity evidence, such as revocation lists (CRLs) or OCSP responses.<\/p>\n<\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-yes\"><i class=\"fusion-li-icon fa-pen-nib fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\">\n<p data-start=\"935\" data-end=\"990\">A trusted timestamp issued by a reliable authority.<\/p>\n<\/div><\/li><\/ul><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:15px;margin-bottom:20px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:0px;border-bottom-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-6\"><p>Thus, the main differences between a standard digital signature and an LTV signature are:<\/p>\n<\/div><div class=\"fusion-image-element\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"1200\" height=\"627\" alt=\"Digital signature vs LTV\" title=\"Digital signature vs LTV\" src=\"https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/Digital-signature-vs-LTV.jpg\" class=\"img-responsive wp-image-21039\" srcset=\"https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/Digital-signature-vs-LTV-200x105.jpg 200w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/Digital-signature-vs-LTV-400x209.jpg 400w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/Digital-signature-vs-LTV-600x314.jpg 600w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/Digital-signature-vs-LTV-800x418.jpg 800w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/Digital-signature-vs-LTV.jpg 1200w\" sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:15px;margin-bottom:20px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:0px;border-bottom-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-7\"><p>If you wish, you can find more information about LTV signatures on the page: <strong><a href=\"https:\/\/www.cert.fnmt.es\/catalogo-de-servicios\/firma-larga-duracion\" target=\"_blank\" rel=\"noopener\">https:\/\/www.cert.fnmt.es\/catalogo-de-servicios\/firma-larga-duracion<\/a><\/strong><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-top-small:10px;--awb-margin-right-small:0px;--awb-margin-bottom-small:10px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:40;line-height:var(--awb-typography1-line-height);\"><h2>Advanced LTV Digital Signature in SaveTheProof Certificates<\/h2><\/h2><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:15px;margin-bottom:20px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:0px;border-bottom-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-8\"><p data-start=\"63\" data-end=\"187\">All digital evidence certificates generated on our platform incorporate the <strong>advanced LTV digital signature<\/strong>, ensuring that:<\/p>\n<\/div><div class=\"fusion-text fusion-text-9\"><p><span style=\"font-size: 25px;\">\ud83d\ude80<\/span>\u00a0The evidence<b> can be verified even many years later<\/b><\/p>\n<\/div><div class=\"fusion-text fusion-text-10\"><p><span style=\"font-size: 25px;\">\ud83d\ude80<\/span> Its authenticity<b> does not depend on external services<\/b><\/p>\n<\/div><div class=\"fusion-text fusion-text-11\"><p><span style=\"font-size: 25px;\">\ud83d\ude80<\/span><span style=\"font-weight: 400;\">The <strong>traceability and tamper-resistance of the document<\/strong> are guaranteed, both technically and legally<\/span><\/p>\n<\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:15px;margin-bottom:20px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:0px;border-bottom-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-12\"><p>You can verify the activation of the advanced LTV digital signature yourself on the <strong><a href=\"https:\/\/www.savetheproof.com\/en\/browsing-session-certificate\/\" target=\"_blank\" rel=\"noopener\">Web Browsing Certificates<\/a><\/strong>, <strong><a href=\"https:\/\/www.savetheproof.com\/en\/website-certificate\/\" target=\"_blank\" rel=\"noopener\">Web Page Certificates<\/a><\/strong>, or <strong><a href=\"https:\/\/www.savetheproof.com\/en\/file-certificate\/\" target=\"_blank\" rel=\"noopener\">File Certificates<\/a><\/strong> you have issued with SaveTheProof:<\/p>\n<p><strong>Open the certificate in PDF &gt; Click on SIGNATURES<\/strong> (pen icon): <strong>The signature is activated for LTV<\/strong><\/p>\n<\/div><div class=\"fusion-image-element\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-2 hover-type-none\"><img decoding=\"async\" width=\"1200\" height=\"627\" alt=\"LTV Digital Signature in a SaveTheProof Certificate\" title=\"LTV Digital Signature in a SaveTheProof Certificate\" src=\"https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/LTV-Digital-Signature-in-a-SaveTheProof-Certificate-2.jpg\" class=\"img-responsive wp-image-21069\" srcset=\"https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/LTV-Digital-Signature-in-a-SaveTheProof-Certificate-2-200x105.jpg 200w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/LTV-Digital-Signature-in-a-SaveTheProof-Certificate-2-400x209.jpg 400w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/LTV-Digital-Signature-in-a-SaveTheProof-Certificate-2-600x314.jpg 600w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/LTV-Digital-Signature-in-a-SaveTheProof-Certificate-2-800x418.jpg 800w, https:\/\/www.savetheproof.com\/wp-content\/uploads\/2025\/09\/LTV-Digital-Signature-in-a-SaveTheProof-Certificate-2.jpg 1200w\" sizes=\"(max-width: 640px) 100vw, 1200px\" \/><\/span><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"align-self: center;margin-left: auto;margin-right: auto;margin-top:15px;margin-bottom:20px;width:100%;\"><div class=\"fusion-separator-border sep-double\" style=\"--awb-height:20px;--awb-amount:20px;border-color:var(--awb-color3);border-top-width:0px;border-bottom-width:0px;\"><\/div><\/div><div class=\"fusion-text fusion-text-13\"><p>In this way, any digital certificate issued by SaveTheProof <strong>will remain admissible and verifiable over time<\/strong>, regardless of when it is accessed, <strong>becoming a guarantee of trust.<\/strong><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-14\"><p>Have questions? Write to us at <strong><a class=\"decorated-link cursor-pointer\" href=\"mailto:info@savetheproof.com\" target=\"_blank\" rel=\"noopener\" data-start=\"124\" data-end=\"145\">info@savetheproof.com<\/a><\/strong> or use the chat on our website.<\/p>\n<p>We\u2019ll be happy to help you \ud83d\ude09.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":21045,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[75],"tags":[],"class_list":["post-21036","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-recursos-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>LTV Signature (Long-Term Validation): The digital signature that never expires - SaveTheProof.com<\/title>\n<meta name=\"description\" content=\"At SaveTheProof, our position is clear: trust in evidence cannot depend on third parties. Every certificate generated on our platform incorporates LTV digital signatures.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.savetheproof.com\/en\/ltv-signature-that-never-expires\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LTV Signature (Long-Term Validation): The digital signature that never expires - SaveTheProof.com\" \/>\n<meta property=\"og:description\" content=\"At SaveTheProof, our position is clear: trust in evidence cannot depend on third parties. 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