{"id":1051,"date":"2026-05-20T16:50:49","date_gmt":"2026-05-20T16:50:49","guid":{"rendered":"https:\/\/proptrustverified.com\/es\/?p=1051"},"modified":"2026-06-17T19:58:05","modified_gmt":"2026-06-17T19:58:05","slug":"validez-juridica-del-hash-blockchain-en-informes-periciales","status":"publish","type":"post","link":"https:\/\/proptrustverified.com\/en\/validez-juridica-del-hash-blockchain-en-informes-periciales\/","title":{"rendered":"Hash Blockchain Legal Validity in Perician Reports"},"content":{"rendered":"<!DOCTYPE html>\n<?xml encoding=\"UTF-8\"?><html lang=\"es\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  \n  <title>Hash Blockchain Legal Validity in Perician Reports | PropTrust VerifiedTM<\/title>\n  <meta name=\"description\" content=\"&iquest;Tiene validez legal un informe con hash blockchain en Espa&ntilde;a? Gu&iacute;a 2026: eIDAS, LEC, jurisprudencia y c&oacute;mo PropTrust Verified&trade; garantiza la integridad probatoria.\">\n  <meta name=\"robots\" content=\"index, follow\">\n  <link rel=\"canonical\" href=\"https:\/\/proptrustverified.com\/blog\/validez-legal-hash-blockchain-informes-periciales-espana-2026\/\">\n  \n  <!-- Open Graph -->\n  <meta property=\"og:title\" content=\"Validez Jur&iacute;dica del Hash Blockchain en Informes Periciales (Espa&ntilde;a 2026)\">\n  <meta property=\"og:description\" content=\"Descubre c&oacute;mo la tecnolog&iacute;a blockchain y el hash SHA-256 garantizan la integridad de informes periciales con plena validez legal en juzgados espa&ntilde;oles.\">\n  <meta property=\"og:image\" content=\"https:\/\/proptrustverified.com\/images\/blockchain-validez-legal-hero.jpg\">\n  <meta property=\"og:type\" content=\"article\">\n  \n  <style>\n    :root {\n      --primary: #06b6d4;\n      --secondary: #0a0f1c;\n      --bg-dark: #111827;\n      --text-main: #e2e8f0;\n      --text-muted: #94a3b8;\n      --border: #1e293b;\n    }\n    \n    body { \n      font-family: system-ui, 'Inter', sans-serif; \n      line-height: 1.7; \n      color: var(--text-main); \n      background: var(--secondary);\n      max-width: 900px; \n      margin: 0 auto; \n      padding: 20px; \n    }\n    h1 { font-size: 2.2rem; color: #fff; margin-bottom: 20px; }\n    h2 { color: var(--primary); border-left: 4px solid var(--primary); padding-left: 16px; margin-top: 40px; }\n    .hero-image { width: 100%; border-radius: 12px; margin: 30px 0; box-shadow: 0 8px 32px rgba(6,182,212,0.2); }\n    .tech-box { \n      background: linear-gradient(135deg, rgba(6,182,212,0.1) 0%, rgba(8,145,178,0.05) 100%); \n      border: 1px solid rgba(6,182,212,0.3);\n      padding: 24px; \n      border-radius: 12px; \n      margin: 24px 0;\n    }\n    .legal-badge { \n      display: inline-flex; \n      align-items: center; \n      gap: 8px; \n      background: rgba(16,185,129,0.15); \n      color: #10b981; \n      padding: 8px 16px; \n      border-radius: 50px; \n      font-weight: 600;\n      margin: 12px 0;\n    }\n    .cta-button { \n      display: inline-block; \n      background: var(--primary); \n      color: var(--secondary) !important; \n      padding: 14px 32px; \n      border-radius: 8px; \n      text-decoration: none; \n      font-weight: 700; \n      margin: 20px 8px;\n      transition: transform 0.2s;\n    }\n    .cta-button:hover { transform: translateY(-2px); background: #22d3ee; }\n    code { \n      background: var(--bg-dark); \n      padding: 2px 8px; \n      border-radius: 4px; \n      font-family: 'SF Mono', monospace; \n      color: var(--primary);\n    }\n  <\/style>\n<\/head>\n<body>\n\n<article>\n  <header>\n    <h1>Legal Validity of Hash Blockchain in Pericial Reports in Spain (Legal Guide 2026)<\/h1>\n    <p style=\"color: var(--text-muted); font-size: 0.95rem;\">  May 2026 |  14&#65039; 14 min read |  Por By PropTrust VerifiedTM<\/p>\n  <\/header>\n\n  <img decoding=\"async\" src=\"\/images\/blockchain-validez-legal-hero.jpg\" alt=\"Representaci&oacute;n de hash blockchain SHA-256 con sello de validez legal espa&ntilde;ola\" class=\"hero-image\" loading=\"lazy\">\n\n  <p><strong>The expert reports with hash blockchain are already valid in Spain<\/strong>. Following the adaptation of the EIDAS Regulation (EU 910\/2014) and the recent jurisprudence of Provincial Hearings, blockchain technology has been consolidated as a documentary evidence medium with the same evidentiary force as a notary writing.<\/p>\n\n  <p>This technical-legal guide explains <strong>how hash SHA-256 works in expert reports<\/strong>which rules back it and why courts, notaries and insurers admit it as proof of documentary integrity.<\/p>\n\n  <div class=\"legal-badge\">&#9655;&#9989; EIDA compliance | LEC Art. 326 | GDP Compatible\n <\/div>\n\n  <h2> &#65039; Policy framework: Why is it legally valid?<\/h2>\n\n  <div class=\"tech-box\">\n    <h3>) Regulations applicable in Spain (2026)<\/h3>\n    <ul>\n      <li><strong>EIDAS (EU 910\/2014)<\/strong>: Recognizes electronic trust services, including time seal and qualified electronic conservation.<\/li>\n      <li><strong>Civil Procedure Act (Art. 326)<\/strong>: Admits as evidence the &#8220;electronic documents that guarantee their authenticity and integrity&#8221;.<\/li>\n      <li><strong>Law 34\/2002 (LSSI)<\/strong>: Equip electronic documents with cryptographic hash to private public documents.<\/li>\n      <li><strong>GDPR and LOPDGDD<\/strong>: The hash does not contain personal data, only cryptographic print of the document.<\/li>\n    <\/ul>\n  <\/div>\n\n  <h2>  How does the hash SHA-256 work in an expert report?<\/h2>\n\n  <p>The technical-legal process is as follows:<\/p>\n\n  <ol>\n    <li><strong>Submission of the report:<\/strong> The collegiate expert writes and digitally signs the technical opinion.<\/li>\n    <li><strong>Hash calculation:<\/strong> The SHA-256 algorithm is applied to the full PDF file, generating a single string of 64 hexadecimales characters (e.g.: <code>a3f5d8c2e1b4...<\/code>).<\/li>\n    <li><strong>Registration in blockchain:<\/strong> The hash is recorded in a public blockchain (Ethereum\/Bitcoin) with timestamp, creating an immutable temporary seal.<\/li>\n    <li><strong>Public verification:<\/strong> Any third party can calculate the PDF hash and compare it to the blockchain register to confirm that it has not been altered.<\/li>\n  <\/ol>\n\n  <div class=\"tech-box\" style=\"background: linear-gradient(135deg, rgba(239,68,68,0.1) 0%, rgba(245,158,11,0.05) 100%); border-color: rgba(239,68,68,0.3);\">\n    <h3>&#9726; Important: What is NOT a blockchain hash<\/h3>\n    <ul>\n      <li>&#10060; It is NOT a digital signature (although it complements it)<\/li>\n      <li>&#10060; DO NOT contain the content of the report (only its cryptographic footprint)<\/li>\n      <li>&#10060; DO NOT store personal data on blockchain (GDP)<\/li>\n      <li>&#9655; Yes guarantees that the document has not been altered or a coma<\/li>\n      <li>&#9655; YES test the existence of the document at an exact date\/time<\/li>\n    <\/ul>\n  <\/div>\n\n  <h2>s&#65039; Jurisprudence: Real cases admitted to Spanish courts<\/h2>\n\n  <table style=\"width: 100%; border-collapse: collapse; margin: 24px 0;\">\n    <thead>\n      <tr style=\"background: var(--primary); color: var(--secondary);\">\n        <th style=\"padding: 12px; text-align: left;\">Judgment\/Audience<\/th>\n        <th style=\"padding: 12px; text-align: left;\">Year<\/th>\n        <th style=\"padding: 12px; text-align: left;\">Type of case<\/th>\n        <th style=\"padding: 12px; text-align: left;\">Resolution<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr style=\"background: var(--bg-dark);\">\n        <td style=\"padding: 12px;\">AP Valencia, Sec. 12a<\/td>\n        <td style=\"padding: 12px;\">2025<\/td>\n        <td style=\"padding: 12px;\"><a class=\"wpil_keyword_link\" href=\"https:\/\/proptrustverified.com\/es\/contacto\/\" title=\"Contacto\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"363\">Hidden vics<\/a> sale<\/td>\n        <td style=\"padding: 12px;\">&#9655; Admitted as valid expert test<\/td>\n      <\/tr>\n      <tr>\n        <td style=\"padding: 12px;\">Commercial Court No. 3 Madrid<\/td>\n        <td style=\"padding: 12px;\">2025<\/td>\n        <td style=\"padding: 12px;\">Pathologies construction<\/td>\n        <td style=\"padding: 12px;\">&#9655; Recognized integrity of the blockchain report<\/td>\n      <\/tr>\n      <tr style=\"background: var(--bg-dark);\">\n        <td style=\"padding: 12px;\">AP Barcelona, Sec. 15a<\/td>\n        <td style=\"padding: 12px;\">2024<\/td>\n        <td style=\"padding: 12px;\">Maritime sinister<\/td>\n        <td style=\"padding: 12px;\">&#9655; Valid hash as a test medium<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n\n  <h2>  How to verify an PropTrust VerifiedTM report<\/h2>\n\n  <p>Anyone can verify the authenticity of a report in 3 steps:<\/p>\n\n  <div class=\"tech-box\">\n    <ol>\n      <li><strong>Get the hash:<\/strong> The report includes a QR code and the hash SHA-256 printed on the footer.<\/li>\n      <li><strong>Calculate PDF hash:<\/strong> Use online tool (e.g. sha256online.org) or visit <a href=\"https:\/\/proptrustverified.com\/verify\" style=\"color: var(--primary);\">proptrustverified.com\/verify<\/a> and upload the PDF.<\/li>\n      <li><strong>Compare:<\/strong> If the calculated hash matches the one recorded in blockchain &rarr; &#9655;&#9989; <strong>Real document<\/strong>. If not agreed &rarr; &#10060; <strong>altered document<\/strong>.<\/li>\n    <\/ol>\n  <\/div>\n\n  <h2>  Cases of use: when is it especially useful?<\/h2>\n\n  <ul>\n    <li>&#9989; <strong>Judicial expert reports:<\/strong> It avoids challenges for &#8220;alteration of opinion&#8221; between the issue and the submission in trial.<\/li>\n    <li>&#9989; <strong>Purchase of assets:<\/strong> The buyer can verify that the due diligence report is the original issued by the expert.<\/li>\n    <li>&#9989; <strong>Claims to insurers:<\/strong> It shows that the damage report was not modified after the inspection.<\/li>\n    <li>&#9989; <strong>Subsidies and tenders:<\/strong> Administrations can verify the authenticity of technical reports submitted.<\/li>\n    <li>&#9989; <strong>Notes and records:<\/strong> It complements the public notarial faith with blockchain traceability.<\/li>\n  <\/ul>\n\n  <div style=\"text-align: center; margin: 50px 0; padding: 40px; background: var(--bg-dark); border-radius: 16px; border: 2px solid var(--primary);\">\n    <h2 style=\"margin-top: 0; border: none; padding: 0;\">  Do you need to verify a report or integrate blockchain into your professional flow?<\/h2>\n    <p style=\"color: var(--text-muted); margin: 20px 0;\">PropTrust VerifiedTM offers free public verification and integration APIs for professionals.<\/p>\n    <a href=\"\/verify\" class=\"cta-button\"> un Verify a Report Now<\/a>\n    <a href=\"mailto:verificacion@proptrustverified.com\" class=\"cta-button\" style=\"background: transparent; border: 2px solid var(--primary); color: var(--primary) !important;\">  Request API Integration<\/a>\n  <\/div>\n\n  <footer style=\"margin-top: 60px; padding-top: 30px; border-top: 2px solid var(--border); color: var(--text-muted); font-size: 0.9rem;\">\n    <p><strong>PropTrust VerifiedTM<\/strong> &#8211; Blockchain certification system for real assets<\/p>\n    <p>  Hash SHA-256 | S&#65039; Compliance with EIDAs |  R GDPR<\/p>\n    <p style=\"margin-top: 20px;\">&copy; 2026 PropTrust VerifiedTM by Aurema | Trademarks OEPM N0498420 and N0498759<br>Technical supervision: Aurelio Tamarit Blay, Perito Judicial Colegiado Exp. 0161\n <\/p>\n  <\/footer>\n\n<\/article>\n\n<\/body>\n<\/html><p class=\"wp-block-paragraph\"><\/p><div style=\"margin: 20px 0;\"><div class=\"qrcswholewtapper\" style=\"text-align:left;\"><div class=\"qrcprowrapper\"  id=\"qrcwraa2leds\"><div class=\"qrc_canvass\" id=\"qrc_cuttenpages_2\" style=\"display:inline-block\" data-text=\"https:\/\/proptrustverified.com\/en\/validez-juridica-del-hash-blockchain-en-informes-periciales\/\"><\/div><div><a download=\"Hash Blockchain Legal Validity in Perician Reports.png\" class=\"qrcdownloads\" id=\"worign\">\r\n           <button type=\"button\" style=\"min-width:200px;background:#dddddd;color:#000;font-weight: 600;border: 1px solid #dddddd;border-radius:4px;font-size:12px;padding: 6px 0;\" class=\"uqr_code_btn\">Download QR<\/button>\r\n           <\/a><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Hash Blockchain Legal Validity in Perician Reports | PropTrust VerifiedTM Legal Validity of Hash Blockchain in Pericial Reports in Spain (Legal Guide 2026) May 2026 | 14&#65039; 14 min read | Por By PropTrust VerifiedTM The expert reports with hash blockchain are already valid in Spain. Following the adaptation of the EIDAS Regulation (EU 910\/2014) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[],"class_list":["post-1051","post","type-post","status-publish","format-standard","hentry","category-inversion-inmobiliaria"],"_links":{"self":[{"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/posts\/1051","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/comments?post=1051"}],"version-history":[{"count":2,"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/posts\/1051\/revisions"}],"predecessor-version":[{"id":1426,"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/posts\/1051\/revisions\/1426"}],"wp:attachment":[{"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/media?parent=1051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/categories?post=1051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/proptrustverified.com\/en\/wp-json\/wp\/v2\/tags?post=1051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}