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.

“It has crashed out on the phone a few times”

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 2907673729

Proof data

Record hash (SHA-256)

a89e580c7289f11a5ce647d3b488df54bea768bc3f2bc8f8fcf3119c8cbe53b2

Signature (Ed25519, base64)

PpkZpzhaZxwdAFoMK9y/ld/xbd679rmtKtNOhdNDZAuCXiounb2jyysYmRONVhUqlPE/fBDsF8fjlUc4bAfADQ==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["a89eae45aaf2f16b54307e6047f25e56163fa5fb0f68ba1e441bc1f7f03157e4","648fa43763d2c02d1a9006fe39898c95740463ca334e9b88ac5979f7b701e8e2","171ac0355e36b7acaad76eb9a49aa8971988951dedf50a66c5dfd1303331b0e1","2f756d51a66d5dabf911a4465a220411770b1ddfae2c5aa0132dc0b50112e9c6","42b432b49edff133db6ca53d327808d300a19149df7227ea6853928c67322d5a","64a7870e97a8add28cb1ca64f5885c83b6e088e91f099556b67611c20e258d4b","9e806160b1b36e2222caff0bba51bee52e3497ad925bd3b68ad7a3b6d83eba5b","cda5bb9e91ef861db48729bc47c5f775e5a4d84fed1e536ba320452ac8750886","c24089a2ace15285195f841ffb674f022a0dd1f19a38f5fb1148996991089392","bc18d423dfc1cc6b4c0aa93a7f1b3297383ee3212c4329fedf8ba7a2d1c03d0c","990e247af8afe193ae111976d0854ae6dbc82cc0fb2e8be7f20fb2ddb4d3be26","d0e82af4a03d7591b930166e680788d40e9d0f467d2d9124361d17c683e6610b","e73087a4c89fcbfd62483a37ad723e600377233e603592ed8ad92c5db69f30f2","05978e8b9ad5fd39833c65b8b951e8c80cf426334c441fa8a8bff8eb8eeaf534","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]

Anchored

2026-09-22

Public log entry

search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…

Expected log hash

bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:anton-paar/quality/en","quote":"It has crashed out on the phone a few times","rating":4,"review_date":"2025-07-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","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 (b9a08f9d6d76…), 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.