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.

“Gute Versicherung.”
Google Play · 5/5 · 2025-01-18

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 3241341297

Proof data

Record hash (SHA-256): 52763c2a6331f9f952d2dea3a68692747411ccc505700c950fce985e46ff72c2
Signature (Ed25519, base64): 55x0lzTDIM8vY9+G9cVr6wPfPKZB4h6U5Nh3/oFbIku0ZrUUn9s5IXI/xM+JFbKlCR6cGiVFkuyR2qhZ+mbXCQ==
Merkle root: 4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265
Merkle path: ["527c35f5f73b7f1768123173d8695fe1e0382c4b6b2e356b20816da9fdcd3208","15925ab263a2afbf6c858cd8a7b376237ee7d8ae4e1875ee03564adf78c8b93a","8f1ee70a67398c88c463302a13cee9d4c1115262adad0a3afc981dadc41bf50d","eb2b5bcb9a9f473cee2eae0cc7b33d3ac301cc32410e18bee8556beff55ae359","ab4b29dccfbc202748f1ff10d285f65bbc7b4a322c4eb1fa0a7e0b9589cd9f25","2b2939900074048c94e1effc62d8c1ff24a5f19c78f532f39cc44184b9a884f1","0d09b159378deb50891d5d5653723fa832e8fdbba93ac1254ff749224049487d","e46f5511fc62106de517583daaa6b38ae1f9b704b0df0ad9d03dd9e5489449ad","00f665f72f68947c49fb4f577547f5f028fd625e1467daea71d37d6c0b9b0ce1","8cb2f6c11f29539f83cd2e9eea81e8e31d29b15e0a1dff619ec27fc9236eefb1","cd3e9be594270f97347d23985c19ac899631a6773a3076c34d54ac880cc95482","1a39eb8110f60cca7b5d74c4b4e1ee494aba4bfcd1f4082136542cd2a427ac26","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…
Expected log hash: 39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"de","page":"brand:atupri","quote":"Gute Versicherung.","rating":5,"review_date":"2025-01-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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 (4900b1080bdc…), 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.