{"id":10167,"date":"2026-07-21T15:11:44","date_gmt":"2026-07-21T21:11:44","guid":{"rendered":"https:\/\/idsinc.com\/?p=10167"},"modified":"2026-07-21T15:11:45","modified_gmt":"2026-07-21T21:11:45","slug":"beyond-chain-of-custody","status":"publish","type":"post","link":"https:\/\/idsinc.com\/fr\/beyond-chain-of-custody\/","title":{"rendered":"Beyond Chain of Custody: The Case for Proof of Origin"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><\/p>\n\n\n<!-- wp:themify-builder\/canvas \/-->\n\n\n<p class=\"wp-block-paragraph\">Picture a courtroom scene that has played out for centuries: a prosecutor holds up a manila envelope, opens it to reveal a piece of physical evidence, and points to the chain of custody log \u2014 every signature, every handoff, every storage location documented in sequence. The evidence is authenticated. It is admitted.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That model served the legal system well for a long time. But in the fourth installment of the <em><a href=\"https:\/\/idsinc.com\/system-generated-evidence\/\" target=\"_blank\" rel=\"noreferrer noopener\">Concernant les preuves<\/a><\/em> colonne dans <a href=\"https:\/\/todaysmanagingpartner.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Associ\u00e9 g\u00e9rant d&#039;aujourd&#039;hui<\/em><\/a>, PDG et fondateur d&#039;iDS <a href=\"https:\/\/idsinc.com\/team\/dan-regard\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Dan Regard<\/strong><\/a> makes a compelling argument: for digital evidence, chain of custody has become the wrong question entirely.<\/p>\n\n\n\n<h3 id=\"h-why-digital-integrity-is-now-trivial\" class=\"wp-block-heading\"><strong>Why Digital Integrity Is Now Trivial<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When a digital file is collected, forensic software generates a hash value \u2014 a unique mathematical fingerprint derived from the file&#8217;s exact contents. If even a single bit changes, the hash changes. Re-run the algorithm at any point and compare the values: a match means the file is untouched.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No paperwork. No signatures. No reliance on human process or memory. Just math.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For this reason, Regard argues, proving the integrity of a digital file is now a de minimis exercise. Chain of custody for digital assets is still good practice and still part of the forensic process \u2014 but it is no longer where effort and expertise should be concentrated.<\/p>\n\n\n\n<h3 id=\"h-the-real-challenge-proof-of-origin\" class=\"wp-block-heading\"><strong>The Real Challenge: Proof of Origin<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In an era of deepfakes, altered documents, and AI-generated synthetic media, the question courts are increasingly asking isn&#8217;t &#8220;was this file handled correctly?&#8221; It is &#8220;was this file ever real?&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That shift demands a new standard \u2014 what Regard calls <strong>proof of origin<\/strong>: the ability to confirm not just that a file is intact, but that it is genuine, that it came from the source it claims, and that it has not been fabricated from scratch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Every digital artifact leaves a trail. Emails have headers. Documents carry metadata. Photos and videos contain embedded timestamps, GPS coordinates, and device signatures. The forensic task is to read those trails and answer deeper questions: Where did this file originate? Who created it? Was it modified, by whom, and when? Is this video a genuine security recording, or was it AI-generated?<\/p>\n\n\n\n<h3 id=\"h-a-practical-example\" class=\"wp-block-heading\"><strong>A Practical Example<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Regard illustrates the distinction through a criminal trial scenario where the key evidence is security camera footage placing a suspect at a crime scene. The defence argues the footage is fake \u2014 never actually recorded by the surveillance system at all. A hash check is useless here because the dispute isn&#8217;t about whether the file changed after collection. It&#8217;s about whether it was ever authentic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Proof of origin techniques address exactly that: analysing metadata to confirm whether the file was recorded by the claimed system, checking embedded device signatures, cross-referencing security system logs, and applying forensic AI tools to detect frame inconsistencies or signs of manipulation.<\/p>\n\n\n\n<h3 id=\"h-a-broader-implication\" class=\"wp-block-heading\"><strong>A Broader Implication<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Regard closes with a thought worth sitting with: the principles behind proof of origin are increasingly applicable beyond digital evidence entirely. In a world where physical objects are created, controlled, and recorded by computerised systems, the same data trails that verify a digital file can be applied to verify objects, events, and even testimony in ways that were simply not possible twenty years ago.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At iDS, staying ahead of exactly this kind of shift is central to how we work. Our <a href=\"https:\/\/idsinc.com\/what-we-do\/digital-forensics\/\" target=\"_blank\" rel=\"noreferrer noopener\">M\u00e9decine l\u00e9gale num\u00e9rique<\/a>, <a href=\"https:\/\/idsinc.com\/what-we-do\/#SpecialInvestigationsUnit\" target=\"_blank\" rel=\"noreferrer noopener\">Enqu\u00eates<\/a>, et <a href=\"https:\/\/idsinc.com\/what-we-do\/#testimony\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00e9moignage<\/a> practices are built around the emerging standards of authenticity that courts are beginning to demand \u2014 not just the procedural ones they have always required.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--60)\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/todaysmanagingpartner.com\/rethinking-the-chain-of-custody-proof-of-origin-and-the-future-of-digital-evidence\/\" style=\"background-color:#ee5d20\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Lire l&#039;article complet dans Today&#039;s Managing Partner \u2192<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Pour contacter un expert iDS, rendez-vous sur <a href=\"https:\/\/idsinc.com\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>idsinc.com<\/strong><\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>iDS fournit des solutions de donn\u00e9es consultatives aux entreprises et aux cabinets d&#039;avocats du monde entier, leur donnant un avantage d\u00e9cisif, tant dans la salle d&#039;audience qu&#039;en dehors. Les experts en la mati\u00e8re et les strat\u00e8ges de donn\u00e9es d&#039;iDS se sp\u00e9cialisent dans la recherche de solutions \u00e0 des probl\u00e8mes de donn\u00e9es complexes, garantissant que les donn\u00e9es peuvent \u00eatre exploit\u00e9es comme un atout et non comme un handicap. Pour en savoir plus, visitez <\/strong><\/em><a href=\"https:\/\/idsinc.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em><strong>idsinc.com<\/strong><\/em><\/a><em><strong>.<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br><em>Vous avez des difficult\u00e9s avec un terme technique utilis\u00e9 dans cet article\u00a0? Consultez notre\u2026 <\/em><a href=\"https:\/\/idsinc.com\/glossary\/\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Glossaire des analystes de donn\u00e9es<\/em><\/a><em> d\u00e9crypter le code.&nbsp;<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Picture a courtroom scene that has played out for centuries: a prosecutor holds up a manila envelope, opens it to reveal a piece of physical evidence, and points to the chain of custody log \u2014 every signature, every handoff, every storage location documented in sequence. The evidence is authenticated. It is admitted. That model served [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":10168,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,33,30,38],"tags":[],"class_list":["post-10167","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-data-sources","category-digital-evidence","category-methodologies","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Beyond Chain of Custody: The Case for Proof of Origin - iDiscovery Solutions<\/title>\n<meta name=\"description\" content=\"The old model historically served the legal system well, but for digital evidence, chain of custody has become the wrong question entirely.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/idsinc.com\/fr\/beyond-chain-of-custody\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Beyond Chain of Custody: The Case for Proof of Origin\" \/>\n<meta property=\"og:description\" content=\"The old model historically served the legal system well, but for digital evidence, chain of custody has become the wrong question entirely.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/idsinc.com\/fr\/beyond-chain-of-custody\/\" \/>\n<meta property=\"og:site_name\" content=\"iDiscovery Solutions\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/iDiscovery-Solutions-110210573904472\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-21T21:11:44+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-21T21:11:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/idsinc.com\/wp-content\/uploads\/2026\/07\/Beyond-Chain-of-Custody-The-Case-for-Proof-of-Origin-e1784667788862.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"iDiscovery Solutions\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"iDiscovery Solutions\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/idsinc.com\\\/beyond-chain-of-custody\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/idsinc.com\\\/beyond-chain-of-custody\\\/\"},\"author\":{\"name\":\"iDiscovery Solutions\",\"@id\":\"https:\\\/\\\/idsinc.com\\\/en_gb\\\/#\\\/schema\\\/person\\\/bf7f03a502e8a54e558c44d0ff5d6736\"},\"headline\":\"Beyond Chain of Custody: The Case for Proof of Origin\",\"datePublished\":\"2026-07-21T21:11:44+00:00\",\"dateModified\":\"2026-07-21T21:11:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/idsinc.com\\\/beyond-chain-of-custody\\\/\"},\"wordCount\":681,\"publisher\":{\"@id\":\"https:\\\/\\\/idsinc.com\\\/en_gb\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/idsinc.com\\\/beyond-chain-of-custody\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/idsinc.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/Beyond-Chain-of-Custody-The-Case-for-Proof-of-Origin-e1784667788862.jpg\",\"articleSection\":[\"Blog\",\"Data Sources (Mobile, IoT, Non-Traditional)\",\"Digital Evidence + Data Authenticity\",\"Frameworks + Methodologies\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/idsinc.com\\\/beyond-chain-of-custody\\\/\",\"url\":\"https:\\\/\\\/idsinc.com\\\/beyond-chain-of-custody\\\/\",\"name\":\"Beyond Chain of Custody: The Case for Proof of Origin - 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