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.

“I found a video on YouTube which was excellent”

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 3668793196

Proof data

Record hash (SHA-256)

2980c5e3fe2fe5abac0e766b8dc0bfa6c6f2a717ac0e8fcd3448d592d33db25f

Signature (Ed25519, base64)

fTULLhQyJ+cDS52kPLTWZOQaHEA7JzcGvnak8bmDLyDqU+fiftuELywp0LBJm0sR/XHIpIDGwfqqTx3txezqAQ==

Merkle root

8552de27836d9c1d73f2670cf2bc11df6459e7443d47ace4674278484e3a6d8e

Merkle path

["298c40d561fdea5621dbf3a1d30b78f966b858d33035b7edea98806dfaf8171e","dc7fc916f76d64c0cb0a3c5a11aeca043df8adf62b7b410ef67ec2a224f0ac6a","41011156e5276e172212aad73b7124cfcb3fc784fa5ef312502b20fe9367a1c2","a3201e3e1edfe4f5a5769db128482e1e0e92a6db9f09404683adeff17c5799e7","0c0fae3327a605a2a5d5690ef5b4c818d17023c0f3faa40e75694f8a18d47306","bf46650d82f05bd1af372ae65c02b0b2a8f6dd0e8d8cce54a960653d371b3808","7078a48d9a33722d6a2cbacfe1613114e3e2f2b7e12c6113ab9c805d1426423a","223ce072c0c7004527423c26d5b32c2db3f7cd0103c338841f9f86d2359152cd","1b8f787301f3029d45be5c0d9791d1d2fe821dc1360d234e692fa49f7eb4e011","b98b3946624e96ff5c5d2359bfeab8d0f6005d975c9b5a1ae38021f06592e67b","a727751c9d33c8712451de0a0e4c3f7ed63f0877154abecb7860115e377663a9","521a2de35e4b98beb07bc39254cf192902ab2b5298a659e0538f167d5630eb48","06f625e80da47a14c2d3e7027b88f7f89c63e459e05ddda58b98e60b36bc2518"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668793196 · entry 108e9186e8c5677a8c91…

Expected log hash

f099839a063ebfd0b66050d615b9645cca5be77075ecec449f1aa0148fdcbfea 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":"v1793706932685","kind":"published-quote","locale":"en","page":"brand:xero","quote":"I found a video on YouTube which was excellent","rating":5,"review_date":"2024-10-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xero.touch","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 (8552de27836d…), 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.