Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“add support to Urdu language and its fonts”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 3240231023

Proof data

Record hash (SHA-256)

1766f0c94a9c10729ae5e126de4cc1d36d2472dd85ae4c12b253a8e293612a88

Signature (Ed25519, base64)

omjr44Sk+TxoqQtKJ07+p96WxhcwdSQ13iKj+XSfDHRxxYCeW7B0TBtGXbuHC5Gs6fZxPsqGvWjRo1HI+ALnDg==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["1752283d22a5b515b0b7942b724774d8b62c6d71238f2fc981934ce2879b1c8f","8870ff9b58076e86fad74a1c45203fd68603fed7b997021168acb0b85e6a0652","962f48c8e1ce7af8f5a5dbf9c32f9f9c05d697c402a237a7e2b5c10c1f07107a","90b7d11223d8523d64877d95fc8f1ae5ec19cd46579d0cba40970e3702b3ae38","99aedcdcaf831051671b82f641e61a8355acd8014988e1009c7419eb00d17886","c27ccec410a4e632863c18602dd5206e64c365d67ef7d4784656bf59f4f77a2f","800b40bfe771afa1fc12d6cffb1e17d69c108b68d4038f1d9a9e779995d1159d","de0732e9d6768ae4eca1c3b2b960bd3b86167b775a443279eaf1eac266d5f94d","67aca940793f635301d30bd397257c28103a136fcbcf7f31d95900b71748134e","a5fbf0c21b8acc6c3c93b6bd5ee7017305f498f525f0d5c731cdd805e90d8c42","36593ff6981142345d894360aba2045a8b70ebe4ed0dd9f3ba3c7292169f7244","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"add support to Urdu language and its fonts","rating":3,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (888a38c73939…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.