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.

“ich habe über Wochen an meinem Fotobuch gearbeitet”

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 2579329594

Proof data

Record hash (SHA-256)

087ea878f9c2982e77f97a50458afaec3d81e8d0964ccee1287c043e313b2619

Signature (Ed25519, base64)

DEXNzaHmtpuX78Zx6LzEVcg2DDo7YqXcalxv/1UfrV6AXksJe6tuusW5UJ9DTMCcnKXlWYg8+TuKfKi797lcBA==

Merkle root

61c0358904092135da9dcafe8883af2adb0c61440bf491948394c6fe07255cf0

Merkle path

["08792fef0fd6aedbd3164c66106cc4a7ceaad7dc6ccb2a8412d480a36468c364","85a28937f52b2f8a7484a471dc0df9153ce1ddabee7932ab5e25a0e7e0a762e0","c2a4d449a69e3c5364d3f3b72ea018aa9a6fba7a283fcd3f65fabc82710d8fc1","1803812ab7645a42053eb5135bf1bfebcd85701b435bc85f3d1bfa386a7c0108","4bd58b57b56c78b9620ecf37ece39316acc081fb70c070e1b60bb2996d274bec","f22989b4707e545b8bb5c74ca453d90d681f3d4383dbe2670dc31769953bc1e9","af18b446116c72554f509c027cb34beaed11744fe8e4fbe064547e5b5f2efae2","8efe997b84391ed8ce87bd59f1265a425228c12f556ceb26457f4c44ddd2355e","010a9ab6c08439a6b6c8a97a9f2485b6bdd5c1ac47f66fdce44f1fc9d14e1afe","42102fad8200f70c9e6b1ac9c5eec412503be2ff3fb9a01c5afda2922431666c","4363a9c7a72ae1364a6e5dd0ecd88499a582bb687c3502ae3bc2102e31c7680d","87520a43200c2a64131784e9fcaf857a7240782996abb4557bb54db56d1e2ad0","71cae424255aa4638e3d855f2e4d0d3ec8f410d9b00b335969ebfbb7884e48de","5f85197a8394f334f8f9e8be202ba3ec072c11f71435e83d07f11a0a073ecf02","6b5b9926e6b590cb1bd6278f63edc47584ee36101706f8e0b22f8404af273127"]

Anchored

2026-08-24

Public log entry

search.sigstore.dev, log index 2579329594 · entry 108e9186e8c5677a2f40…

Expected log hash

bb1ce4990105a11e35218e4ee0348633e0f4be8179db75acbed652ddd79f7a87 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":"v1787538369368","kind":"published-quote","locale":"de","page":"theme:pixum/ordering/de","quote":"ich habe über Wochen an meinem Fotobuch gearbeitet","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pixum.android.photoworld","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 (61c035890409…), 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.