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.

“Heute ist mein letzter Tag im Abo und mitten am Tag geht nichts mehr.”

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 3199295725

Proof data

Record hash (SHA-256)

155f177ce6a3b954a3146cae5399be1f61add6f32bbf7a1ce3f58c023d04f7f4

Signature (Ed25519, base64)

87zCecFtSSV5lPExPRQLcQzbFk6usny4bV3l8hf4vlVrOTcpVnBnuVZQeSqrcX5zyUq0+mk3qeD4NFPK5KnIAg==

Merkle root

cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e

Merkle path

["15603da6a4975ed4e815cd8a03364996e141d3ac5b8c23cc5205f3109e407ee3","8de1f5bfdccf0f45d8fd2cb73e1fdbb02be4f2ae463403a683305387c00e03cd","978e0d6e041541ba6afe70c3d2c44ed35f331198e0fc27b7c00145b6b8c2c94d","035668ac3e06f32ad80f405396d076cd93c1cad172f210b9eb5b6be8043ce19e","b6c9ffd9c10a84b67eb3d16c7f5cb27d0cf25365206503bd2cb73539fe12878c","4c42987a04d05f247d61b49dcae4e003780ee004760b9a038f49cfb937dc20e9","5e179a486ba6c209bdc2fbeaf44aa4524f3502bb95e459daa66baa1026c8e6d3","30ab0c4e1b551055c5e63906bec09548471dfe38360006bec3191fee7ba7ae6a","a61007fbc6bef9611128fbac642c1e048e071630de57ad7dd1556b21d295d453","09b08fd8664752eb4ed90217c08321a2bd75a99bb629b4dacefa780c3242dac8","11e9097331bc857239ac2499b714bed271799a50a561a79619dc3bfa39226b52","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…

Expected log hash

59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"brand:storytel","quote":"Heute ist mein letzter Tag im Abo und mitten am Tag geht nichts mehr.","rating":1,"review_date":"2026-07-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (cb5472fa7b7f…), 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.