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.

“vous avez dit que c'était gratuit”

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 2543857133

Proof data

Record hash (SHA-256)

fbc528489216260208228a9d6c8dfbf261bedfc8fd213dca943ace7367f3ba9a

Signature (Ed25519, base64)

2pOcBCwp/AkjyAot44+9AgPxu2BfUYuBP15fOzuDvdeXjHVK7ITaxTaaBrfzNEhMWFnjheztSTx6TZhiAqGrAQ==

Merkle root

cee60bb6c0816d1bc69326ea12cf0c5c00cbea13afa283147bf24b52e30f839c

Merkle path

["fbc1852527223657eb0f04993fb9571aa570b280bdf28972b906c639a6054f11","642bb744db835d2b24be172f6ad3423f8401e1d92189545c3704b10d511a07b6","fd793bf0b27c34c718104a10aab6514221138a230d1db27313dd6d3fdb6b8c78","177b394c3019d4f066ad0e0b6a47a54735d269955a1a5df999cabfbc02d4fde5","e7b2d8659c1cda0804788bf1c3fee8c6225ccf5db6a4738658cccc56ea22b566","bd4160a66494febd3a2b1d6a74e984947f36d1938f730a9eeb32e887329ffa7b","b39ae5baf805ed8ac76766b756ee7950d4f3e44709189bb1c730081a367f7407","5f4e9499f206771b87089b0a9d0e78fa66a5906038b8ed09214e5a5498907d29","5e8b7b291593a5fb57008cd07f012938347d0aca14e3e33ec5234885b6f64d64","a00ebfabc5ef083e95952d84021c98d3cc55302f80b66bb210097ff6a1614ef6","8eede5eaaaa39aa311d5d82caff567170f05a3f5da864babf80accb43c38ea8d","78caf62780a7cd32d3591546c7643819cd8e2ced71a3bdf696f7fa96ed9676b7"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543857133 · entry 108e9186e8c5677a5231…

Expected log hash

d8e1ac8b740526c2915424d7f7c6bce881a4ef05d0a3a3dbd88e4c760e36623e 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":"v1787288037224","kind":"published-quote","locale":"fr","page":"theme:canva/billing/fr","quote":"vous avez dit que c'était gratuit","rating":3,"review_date":"2026-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (cee60bb6c081…), 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.