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.
“Can turn photos into pdf”
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 3178115911
Proof data
- Record hash (SHA-256)
126baf3dd1a6e696910efeada983412a67f4869adf467f4e01462287a6330dbf- Signature (Ed25519, base64)
VPJgVKVaplPy7T6HwvPDhIF6J3dxx+QLUdI7g9lJpT8HMcLRJtTZFVoUWDpA4HV3fOP9OUeXRDTLvxC9iD4eAg==- Merkle root
afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b- Merkle path
["126b8e618bd0b5a0ac1f401f56059be638490a51e209fec6adcf32002a09ff3d","d2c970f41da37a555d5ec1757af4467b031aa8235dd92f7ab90697cd9e4d7d91","966ff14838cce191a24f9ab9d321b0a60280f34d733a7d1b5d6d0f768e2fad13","02f601a0d6b99acb9cb27a5dbc3109180ed201d5ab48a743f8b4a7a35bdf73bb","44517e563459ed042790a07c283d4b623f7eea9d92f699b2fc54c6d44dd6760c","f7653fcd8dcff2762ba6823d1cac48a6752a24353334cbe6dc253f882c621fa2","76980b1e1a1560dfaced14f3a1d7fb3334bb5922efd129568dff38bb56f8793a","87f142e4ec2c43f5545d578c4b1c277cb8de7e4dd319e8b587f7bc4992296a30","27bb6c12416ffc8e44d9aa3cf7ea5eac8f0aeab9232d9092b805d23a74b4f208","9d4f44ba741e72aa4d04343fcd7d6bdcec676fa5deac777452447e6dc1943c1c","2dd3f4cc0ce148d7d51c1e3bfe2d48062a5fd704540a9bfdd861a1055ca54f17","ec08854347577678bea6aee9937042bc6beae2ec019209b55d90c01fe9714518","09648cb4275ce9eb9f26709778da1b3653a6ea84465537d5f6fe5c1b17d3cea0","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]- Anchored
- 2026-10-10
- Public log entry
-
search.sigstore.dev, log index 3178115911 · entry
108e9186e8c5677a2bba… - Expected log hash
-
a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870fThe log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1791604579182","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"Can turn photos into pdf","rating":5,"review_date":"2026-07-31","source":"Apple App Store","source_url":"https://apps.apple.com/sg/app/id469337564?see-all=reviews","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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (afb9ffbb4b4e…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.