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.

“Sie waren absolut hilfsbereit und mehr als freundlich.”
Google Play · 5/5 · 2026-04-16

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 3140627354

Proof data

Record hash (SHA-256): e5803dc18365052e7aac9e0eee22d37c1eb873c59b976a5b64d07f43dcfa353b
Signature (Ed25519, base64): GzIvgYyfu1SGMSpAGKIcP1TH5JZ1aq7gFMH6WI2Jeyt9Lj6wW1SJf2pD5Pq3kfzErv98/Q/AluJIlIbvZ9ZCAA==
Merkle root: 7e5597bd3c162c8b6d828ec7450367f642ce11ee386de414b88376dcbb621ae5
Merkle path: ["e586f1177359b35188b5265953c5a8e42dd98a35ac3fdb8b63315c9ee14e8aac","4aaf97cc29ebb17e520d77f088aeb22cb9b0cda4cd5e9409145ef0e9d6e2e227","afbbb0e4eab5a220108a97144bbb13d8c4b466463fab99c0ce51c00a59fb6d38","008a9db70e386767db7a90da78e7beb753308a4a2c999279d768a2cb579e74a3","8d49b7ee488682ac20d5735a72d6bbb46f38546d88d83942f28d90be2823c896","9ffac879886e0f9dc355e9db87a0fd965de3337d7af8f354ad8ec3c2fb81c4ce","fffc46622c39d73fc304869ab85c8cb8b2f78ce8d4e868648cb1a07055452597","2b802f9cf96f0e7c45bc96e439064a4491ed4e7052112e7cb63908623780f631","20822d185e4042281329abb85ec74f7bb05c0d0be9c0e96f8f5684f750fdd386","32ae794ea7f6665ea75fb2662392a3460e626251c01a8cea0341b53d50ccdb4b","07e3f9e7cd68b24d0566b416dc9f13e43a7c538eb461890046b23cae88bf9839","5a0d03f386cf2ce1b7e8699bdc38f59c9df83b99caad98658ca82702b7eff85d","3fa77f30bb4ae3659981dff326c7b1ead82f840aa815dc4f4cfaa848f2034350"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140627354 · entry 108e9186e8c5677acc98…
Expected log hash: 82c9bd063e624267c60865e2416c3d714724e2c3b18c4773424cdf17232dd6f1 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":"v1791432333296","kind":"published-quote","locale":"de","page":"theme:everand/service/de","quote":"Sie waren absolut hilfsbereit und mehr als freundlich.","rating":5,"review_date":"2026-04-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (7e5597bd3c16…), 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.