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4:["$","main",null,{"className":"page-shell","children":[["$","script",null,{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"{\"@context\":\"https://schema.org\",\"@type\":\"BlogPosting\",\"headline\":\"Independent proof of date — what it is and why it holds up legally\",\"description\":\"Independent proof of date works like a postmark for digital files. 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The problem is that date can be changed in a few seconds. In a deposit or damage dispute, the other side knows this perfectly well — which is why \"I have a photo\" often isn't enough. The fix is independent proof of date."}],["$","div",null,{"className":"article-meta","children":[["$","span",null,{"children":"7 min"}],["$","span",null,{"children":"July 15, 2026"}]]}],null]}],["$","aside",null,{"className":"article-cta article-cta--top","children":[["$","h2",null,{"children":"See it in practice, not just in theory"}],["$","p",null,{"children":"HandProof seals a report exactly this way — with an eIDAS-qualified time stamp from Sectigo, minutes after your photo session. More on how it works below."}],["$","$L13",null,{"href":"/en/beta","className":"button button-primary","eventName":"article_top_cta_click","eventPayload":{"articleSlug":"independent-proof-of-date"},"children":"Try HandProof"}]]}],"$L14","$L15","$L16"]}],"$L17"]}] 1e:I[45,["884","static/chunks/884-c89063cdf080f8cb.js","538","static/chunks/538-13b6d825e2e30770.js","915","static/chunks/app/en/blog/%5Bslug%5D/page-90e066ccb5656b41.js"],"default"] 14:["$","div",null,{"className":"article-page__body","children":[["$","section","What \"independent proof of date\" actually means",{"className":"article-section","children":[["$","h2",null,{"children":"What \"independent proof of date\" actually means"}],[["$","p","Think of a postmark. When a letter passes through a post office, it gets stamped with a date — and nobody, neither the sender nor the recipient, can turn it back or push it forward. An independent institution confirms: \"this item existed on this day.\"",{"children":"Think of a postmark. When a letter passes through a post office, it gets stamped with a date — and nobody, neither the sender nor the recipient, can turn it back or push it forward. An independent institution confirms: \"this item existed on this day.\""}],["$","p","Independent proof of date works exactly the same way, just for digital documents. Sectigo, a Qualified Trust Service Provider under the EU's eIDAS regulation, confirms that your report existed in a given form at a given time. The key word is independent — the date is guaranteed by someone with no stake in the dispute, not by you and not by the app's creator.",{"children":"Independent proof of date works exactly the same way, just for digital documents. Sectigo, a Qualified Trust Service Provider under the EU's eIDAS regulation, confirms that your report existed in a given form at a given time. The key word is independent — the date is guaranteed by someone with no stake in the dispute, not by you and not by the app's creator."}]],null]}],["$","section","Why an ordinary photo from your gallery isn't enough",{"className":"article-section","children":[["$","h2",null,{"children":"Why an ordinary photo from your gallery isn't enough"}],[["$","p","The date stored in a photo file comes from your phone's clock. And you can turn that clock back in settings — and take a photo \"from the past.\" If you can do it, so can anyone. That's why the date inside a file carries little evidentiary weight on its own: there's no way to tell from it whether it was faked.",{"children":"The date stored in a photo file comes from your phone's clock. And you can turn that clock back in settings — and take a photo \"from the past.\" If you can do it, so can anyone. That's why the date inside a file carries little evidentiary weight on its own: there's no way to tell from it whether it was faked."}],["$","p","Independent proof of date solves this because the confirmation comes from outside your device. Even if you wanted to cheat, there's no way to — Sectigo signs the moment it actually received the fingerprint of your document.",{"children":"Independent proof of date solves this because the confirmation comes from outside your device. Even if you wanted to cheat, there's no way to — Sectigo signs the moment it actually received the fingerprint of your document."}]],null]}],["$","section","Not every \"timestamp\" means the same thing",{"className":"article-section","children":[["$","h2",null,{"children":"Not every \"timestamp\" means the same thing"}],[["$","p","A photo can carry a date in several different ways: camera metadata, a file creation date, a seal added by an app, or an independently confirmed timestamp. These aren't equally strong.",{"children":"A photo can carry a date in several different ways: camera metadata, a file creation date, a seal added by an app, or an independently confirmed timestamp. These aren't equally strong."}],"$L18"],null]}],"$L19","$L1a","$L1b","$L1c","$L1d"]}] 15:["$","div",null,{"className":"article-related","children":[["$","h2",null,{"children":"See also"}],["$","ul",null,{"className":"article-related__list","children":[["$","li","deposit-dispute-evidence",{"children":["$","$L13",null,{"href":"/en/blog/security-deposit-dispute-what-evidence-to-keep","eventName":"article_related_link_click","eventPayload":{"articleSlug":"independent-proof-of-date","relatedArticleSlug":"deposit-dispute-evidence"},"children":"Security deposit dispute: what evidence should you keep?"}]}],["$","li","prove-pre-existing-damage",{"children":["$","$L13",null,{"href":"/en/blog/how-to-prove-a-scratch-was-already-there","eventName":"article_related_link_click","eventPayload":{"articleSlug":"independent-proof-of-date","relatedArticleSlug":"prove-pre-existing-damage"},"children":"How to prove a scratch was already there"}]}],["$","li","handover-protocol-template",{"children":["$","$L13",null,{"href":"/en/blog/apartment-handover-protocol-template","eventName":"article_related_link_click","eventPayload":{"articleSlug":"independent-proof-of-date","relatedArticleSlug":"handover-protocol-template"},"children":"Apartment handover protocol — template and how to fill it out"}]}]]}]]}] 16:["$","aside",null,{"className":"article-cta","children":[["$","h2",null,{"children":"Have proof before you need it"}],["$","p",null,{"children":"HandProof adds independent proof of date to your photos. Free in the base version, no account required."}],["$","$L13",null,{"href":"/en/beta","className":"button button-primary","eventName":"article_cta_click","eventPayload":{"articleSlug":"independent-proof-of-date"},"children":"Try independent proof of date"}]]}] 17:["$","footer",null,{"className":"site-footer","children":[["$","div",null,{"className":"site-footer__grid","children":[["$","div",null,{"className":"site-footer__brand","children":[["$","p",null,{"className":"site-footer__wordmark","children":["Hand",["$","span",null,{"className":"site-footer__wordmark-accent","children":"Proof"}]]}],["$","p",null,{"className":"site-footer__body","children":"Proof for every handover. You photograph the condition of an apartment, car, or gear — you have proof that's hard to dispute."}],["$","div",null,{"className":"store-buttons-row","children":[["$","$L13","android",{"href":"/en/beta","className":"store-pill store-pill--light","eventName":"cta_click","eventPayload":{"placement":"footer","platform":"android"},"children":[["$","svg",null,{"width":"20","height":"20","viewBox":"0 0 24 24","fill":"currentColor","aria-hidden":"true","children":["$","path",null,{"d":"M3.6 2.4c-.26.27-.4.68-.4 1.2v16.8c0 .52.14.93.4 1.2l.08.07L13.5 12 3.68 2.33zM17.1 8.35l-2.4 2.4L4.9 1.06zM4.9 22.94l9.8-9.7 2.4 2.4zM20.4 10.6c.66.37 1.1.86 1.1 1.4s-.44 1.03-1.1 1.4l-2.26 1.3-2.6-2.6 2.6-2.6z"}]}],["$","span",null,{"className":"store-pill__text","children":[["$","span",null,{"className":"store-pill__eyebrow","children":"Get it on"}],["$","span",null,{"className":"store-pill__label","children":"Google Play"}]]}]]}]]}]]}],["$","nav",null,{"className":"site-footer__column","aria-label":"Product","children":[["$","p",null,{"className":"site-footer__heading","children":"Product"}],["$","$L10",null,{"href":"/en#how-it-works","children":"How it works"}],["$","$L10",null,{"href":"/en#pro","children":"Free vs PRO"}],["$","$L10",null,{"href":"/en/technology","children":"Technology"}],["$","$L10",null,{"href":"/en#privacy","children":"Privacy"}]]}],["$","nav",null,{"className":"site-footer__column","aria-label":"Use cases","children":[["$","p",null,{"className":"site-footer__heading","children":"Use cases"}],[["$","$L10","flat",{"href":"/en/apartment","children":"Rental apartment"}],["$","$L10","car",{"href":"/en/car-rental","children":"Car rental"}],["$","$L10","workshop",{"href":"/en/workshop","children":"Workshop / repair drop-off"}],["$","$L10","airbnb",{"href":"/en/airbnb","children":"Airbnb / short-term rental"}],["$","$L10","gear",{"href":"/en/sports-gear","children":"Sports gear & electronics"}],["$","$L10","other",{"href":"/en/anything-else","children":"Anything else"}]]]}],["$","nav",null,{"className":"site-footer__column","aria-label":"Resources","children":[["$","p",null,{"className":"site-footer__heading","children":"Resources"}],["$","$L10",null,{"href":"/en/blog","children":"Blog"}],["$","$L10",null,{"href":"/en/technology","children":"How we protect evidence"}],["$","p",null,{"className":"site-footer__heading site-footer__heading--legal","children":"Legal"}],["$","$L10",null,{"href":"/en/privacy-policy","children":"Privacy policy"}],["$","$L10",null,{"href":"/en/terms","children":"Terms of service"}]]}]]}],["$","div",null,{"className":"site-footer__privacy-bar","children":[["$","$L1e",null,{"ref":"$undefined","iconNode":[["path",{"d":"m2 2 20 20","key":"1ooewy"}],["path",{"d":"M5 5a1 1 0 0 0-1 1v7c0 5 3.5 7.5 7.67 8.94a1 1 0 0 0 .67.01c2.35-.82 4.48-1.97 5.9-3.71","key":"1jlk70"}],["path",{"d":"M9.309 3.652A12.252 12.252 0 0 0 11.24 2.28a1.17 1.17 0 0 1 1.52 0C14.51 3.81 17 5 19 5a1 1 0 0 1 1 1v7a9.784 9.784 0 0 1-.08 1.264","key":"18rp1v"}]],"className":"lucide-shield-off","size":18}],["$","span",null,{"children":"HandProof doesn't store your personal data or photos. Your photos stay on your phone."}]]}],["$","div",null,{"className":"site-footer__bottom","children":[["$","span",null,{"children":"© 2026 HandProof · handproof.app"}],["$","span",null,{"children":"Evidence at hand · version 1.0"}]]}]]}] 18:["$","p","Ordinary photo metadata (EXIF) can be useful, but it can also be edited or lost when a file is copied, exported, or sent through a messaging app. That's why metadata alone shouldn't be treated as conclusive — it's the independent, outside confirmation that actually gives a date real weight.",{"children":"Ordinary photo metadata (EXIF) can be useful, but it can also be edited or lost when a file is copied, exported, or sent through a messaging app. That's why metadata alone shouldn't be treated as conclusive — it's the independent, outside confirmation that actually gives a date real weight."}] 19:["$","section","How this works in practice in HandProof",{"className":"article-section","children":[["$","h2",null,{"children":"How this works in practice in HandProof"}],[["$","p","When you generate a report in the PRO version, the app sends a short, invisible fingerprint of the document to Sectigo — a Qualified Trust Service Provider under the EU's eIDAS regulation — never the photos themselves or their content. There is no way to reconstruct an image from that fingerprint, so your privacy stays intact.",{"children":"When you generate a report in the PRO version, the app sends a short, invisible fingerprint of the document to Sectigo — a Qualified Trust Service Provider under the EU's eIDAS regulation — never the photos themselves or their content. There is no way to reconstruct an image from that fingerprint, so your privacy stays intact."}],["$","p","In return you get a signed certificate: proof that the document, in that exact form, existed at that time. The certificate lands in the export together with the photos — a complete evidence package in a single file, ready for a lawyer or an insurer.",{"children":"In return you get a signed certificate: proof that the document, in that exact form, existed at that time. The certificate lands in the export together with the photos — a complete evidence package in a single file, ready for a lawyer or an insurer."}]],null]}] 1a:["$","section","What a file's fingerprint alone doesn't prove",{"className":"article-section","children":[["$","h2",null,{"children":"What a file's fingerprint alone doesn't prove"}],[["$","p","A cryptographic fingerprint (hash) works like a digital fingerprint — if the file changes, its hash changes too. That lets you verify a photo is identical to the one that was originally sealed. That matters, but it isn't everything you'd want to know about a photo.",{"children":"A cryptographic fingerprint (hash) works like a digital fingerprint — if the file changes, its hash changes too. That lets you verify a photo is identical to the one that was originally sealed. That matters, but it isn't everything you'd want to know about a photo."}],["$","p","A file's fingerprint alone doesn't prove who took the photo, where it was taken, what happened before it, that the scene wasn't staged, or that the device's clock was accurate. That's why good documentation isn't a single sealed photo — it's a consistent set: wide shots for context, close-ups, matching angles before and after, and, where possible, messages or a protocol that tie the photos to a specific event.",{"children":"A file's fingerprint alone doesn't prove who took the photo, where it was taken, what happened before it, that the scene wasn't staged, or that the device's clock was accurate. That's why good documentation isn't a single sealed photo — it's a consistent set: wide shots for context, close-ups, matching angles before and after, and, where possible, messages or a protocol that tie the photos to a specific event."}]],null]}] 1b:["$","section","When to get it",{"className":"article-section","children":[["$","h2",null,{"children":"When to get it"}],[["$","p","Independent proof of date confirms that a document existed at the moment it reached Sectigo — not earlier. If you shoot your photo session for free and only request the certificate a month later, once a dispute has already started, the certificate will show that later date, not the day you moved in or handed the keys over.",{"children":"Independent proof of date confirms that a document existed at the moment it reached Sectigo — not earlier. If you shoot your photo session for free and only request the certificate a month later, once a dispute has already started, the certificate will show that later date, not the day you moved in or handed the keys over."}],["$","p","That's why it does the most good when you request it right after the session, rather than waiting until you actually need it. That way the certificate date and the event date are the same day — not something the other side can dismiss as timed to fit the dispute.",{"children":"That's why it does the most good when you request it right after the session, rather than waiting until you actually need it. That way the certificate date and the event date are the same day — not something the other side can dismiss as timed to fit the dispute."}]],null]}] 1c:["$","section","Will a court or insurer accept it?",{"className":"article-section","children":[["$","h2",null,{"children":"Will a court or insurer accept it?"}],[["$","p","The certificate you get is an eIDAS-qualified time stamp issued by Sectigo — and under EU law, that kind of time stamp carries a legal presumption of the accuracy of the date and the integrity of the data, recognized in every EU member state. This isn't just an informal standard \"banks and institutions happen to like\" — it's a specific provision of law (Article 41 of the eIDAS regulation). Its verification is open and available to anyone.",{"children":"The certificate you get is an eIDAS-qualified time stamp issued by Sectigo — and under EU law, that kind of time stamp carries a legal presumption of the accuracy of the date and the integrity of the data, recognized in every EU member state. This isn't just an informal standard \"banks and institutions happen to like\" — it's a specific provision of law (Article 41 of the eIDAS regulation). Its verification is open and available to anyone."}],["$","p","In practice this means you can show the report to a judge, a lawyer, or an insurance adjuster — and each of them can independently verify that the date is genuine and the document hasn't been altered.",{"children":"In practice this means you can show the report to a judge, a lawyer, or an insurance adjuster — and each of them can independently verify that the date is genuine and the document hasn't been altered."}]],null]}] 1d:["$","section","What if the app disappears in 10 years?",{"className":"article-section","children":[["$","h2",null,{"children":"What if the app disappears in 10 years?"}],[["$","p","That's the most important question — and here's the good news. The date certificate is in an open standard, and the photos in the export are plain JPEG files. You don't need HandProof to verify the evidence. Your proof is independent of us: it will still work even if the app stops existing.",{"children":"That's the most important question — and here's the good news. The date certificate is in an open standard, and the photos in the export are plain JPEG files. You don't need HandProof to verify the evidence. Your proof is independent of us: it will still work even if the app stops existing."}]],null]}] a:[["$","meta","0",{"charSet":"utf-8"}],["$","meta","1",{"name":"viewport","content":"width=device-width, initial-scale=1"}]] 6:null 1f:I[622,[],"IconMark"] 8:{"metadata":[["$","title","0",{"children":"Independent proof of date — what it is and why it holds up legally — HandProof"}],["$","meta","1",{"name":"description","content":"Independent proof of date works like a postmark for digital files. 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