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 the app very easy to use.”
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 2543025731
Proof data
- Record hash (SHA-256)
156696abf67151f7d25bc3019d851f86840224290ed2bfd7a5b766fbaff72220- Signature (Ed25519, base64)
mRPtDjJqDB4BlWM/tdX0EVW3HdtqMEswYJYLJOaN0ddLxyW5wqztm6dBRfNX5iqCWrKxo6q6+PSyQQEsVsaICw==- Merkle root
172a3e0b3c9f8b02f52318e01ba6beb899404e00e91c15eebc4dea38467e1404- Merkle path
["1565dc0d3773b8d217da3c3813b69c0e41373d1cf31863e7ee9be9dceb75c6ba","939cfa2638f635c956d978b0b1cb90b2cc002364be1924983765dfdbef3df76c","41cd5a0e7a6520ecb3a728e12ae56a6ca055763da241e3274516d42a2f7cc7dc","7b271c648655f0d0640176a03dad8818f09079222a58ff387d8bc967e36be8a3","1cec4d6759848cffff183369194476f1896bd855cea1257b435be2fb88ee1fe3","68931a7f4fe500cf73f698e41eb095d436ae248d2904db0b5700f99ae87a1f56","97aa43434e9f0a8c83593bb6faa86d6c46a7b0bb47e3e4af9e5ceb7940e0685c","ee78f16d9f0f512a6e815896f2d6471f8ece7e6d038101b652de02cf09ea49b5","6de632af80dfb821952a7bc83eaf2cb2f74e24d31177f83c5b6bc6498e487014","d494e889799d389af0bd66fabe5be27d9c813f36d16caf5b6471fcf199a71ff6","b9f941e6f506f26041e061465870845d16c7c20ff6defa76d5eb1ce53facfec2","589c22da96e3ff60efb0f79f96ffe7af6214e9470898a7edd786e91a2a5cbbad","6582b4bd72409a5334905e80c9e3aeb7c43a20c5eb4c139595bd990bb777102a","b2e250a62b44b0b9c303f91afd3aac8852fa6af504d7d68ed736141a3dd71161","7731d0ded4f51d151ea3e84474d1e27a6279e8756420c93cf5fec0abf7f11add"]- Anchored
- 2026-08-21
- Public log entry
-
search.sigstore.dev, log index 2543025731 · entry
108e9186e8c5677a8971… - Expected log hash
-
19ecbe4a66d8adbd7c6057dbf6ed9be73485c248dba1e0c595279a908b3e8beaThe 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":"v1787283443958","kind":"published-quote","locale":"en","page":"product:pixum/fotobuch/en","quote":"I found the app very easy to use.","rating":5,"review_date":"2026-01-22","source":"Apple App Store","source_url":"https://apps.apple.com/gb/app/id1319898516?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 (172a3e0b3c9f…), 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.