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.

“Very good because I can go back.”
Google Play · 5/5 · 2026-09-16

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 3163461995

Proof data

Record hash (SHA-256): a2c1361e0437f2cea3fa30e379dd46db792afc69692ded22e794c24184ee2db4
Signature (Ed25519, base64): lILEUmkMxewVsg6Che2ocb5/aMPaqRWz49S+izdORJb/6r3P0bA4EWUhdDByH5TUMjd62ySL5pjXadYG91FcAw==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["a2be3c907a5f6eef0d5a6d69be4846caef9e3109aa819c6b2db6a4ff5ca1791e","f2355513d365236e50802663d66560e8fbb9539bc6bbd7ae66b3a4959af2ecca","eca49a438e6044d499e2465b64777e9540f1b4d5cb329add8a1df854d1c89d6d","907ad2eab0a100ffd45c5f0cd186452124a2ea2f2c6a493e79f32255c7133b48","1564124200c6771bf22b411512537eb76d812738698dc8557cce40a97af2e9a1","ae133b59827d5a08bd88707f47dfd701733b1667d34ac4bfce0e3015561d8577","8a20f1d6b16a9a6a244848395a685b304daf1bea1c891e6aa2d44e305785d002","2106fccf9777b2068fba5f223028cdee4231d9ba412d749a8a0a5977e811ede5","f49d443bbab99df4723f985f05bfa3ed6911086065283fe2e6277448c71528a5","5f6ea42daa3d4b8c57e8478382452995fafea9f526b3a49eee83a6a1537fd3a6","5b04ca805b852c8e0d8b8e61f0750d21a03c7a120d4015dd55fe17482974a97e","26c4a536d56c305fd598b8283d148c389f67714b1ee1403c093a304865323edf","d5b457cbd06c72c301c050bbc18735716496080f1e92d458625264f50eafefeb","3cd750b45485739a93e8e5963aebbe2dbf3f2cd6fcfd5ac889ea2792f103cfff","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…
Expected log hash: 1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"Very good because I can go back.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (f2dea3193623…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.