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.

“most coupons don't work in my city”

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 2893887498

Proof data

Record hash (SHA-256)

c95a4466050f2031157908a8a9b296e98fe415d9f631143b194798089c9f4097

Signature (Ed25519, base64)

UijOmzhxw6rwUxwmg4POWJy0a3yERPGqxz9OpYRMFTAxBQCye8LWasOibDrugnFpdiTvsK+yo+a6g5AicgEgDA==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["c95b7480b4fa4a72f83695506eede3a651d5cf05a4575e5fd26afc887c0cdd19","ca914ee3e07287a64b28974bd1da7af84fb38686e57f9d91432af2faf1319732","864d7d42b3cd2363ac9770448ef51d70bf7507ca1027f73e75267ecb269a402b","4928164b601866c59ef6de6ba6ec5144ce21fc19d1f596dd5005068f23541139","b98650ad1cc11f32da308ec1143783cd5ba17f003c6914ac0fb82e10f0fdb25e","4757a9dd38f1e27c2739d7e6948beb807dbd0b724f219d77febb04c29f678037","5adc7de0b4f69b3efdcb6d545ca48fe6b97dae3d573c3e8d1a59c0da0cb63853","fffd84eec65cc350fd1eb84a0ec7f7081522f1172ff3f4f4f5d11e92f6cf4911","a40d0354adce762c746b7f076e860d258c44a27e2e0d389f48185db736c40bdd","2b93dc9afaa7aca4c6acd55f9bf499d5123bb1a9564daf9e92793a1be819fbea","5ea62ab057d579ca15648207478bc4df778c9ea94e2cbab7b35eb1dae1e3d5ef","38376ec9f35bcd39f5035c8425fc104742746cec8f0f18f678e6ec2b7c8970cb","f798c0971d32a6ae8da39cbfdd643aa26fcc32dd200aa7f9151048a02f8ece59","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:uairango/price/en","quote":"most coupons don't work in my city","rating":1,"review_date":"2025-09-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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 (2f068f3de56b…), 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.