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.

“Works wonderfully.”
Google Play · 5/5 · 2025-01-26

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 3139760477

Proof data

Record hash (SHA-256): ea20f93c9dc262ab4b74898ea129b5d2557d9ac297ded1c46fb8bcb10e6974aa
Signature (Ed25519, base64): SDoXtFBXvzaSWomgmoF9/OKBCaW6mHUFYtS8jgOXugdSUQ7x4uWqVzwib7hk7dhWfHG3yzs+l0poYhzH5p02AQ==
Merkle root: 49133e6803d24035baa1544a5c730db93dbaf832df48f680ca855944337404a2
Merkle path: ["ea1f099154765792f594a30fb401b73607597ad233d266c6a3ecd2c468244155","c340bc0e98241124c0fb715c23f06a1013dc9a14c637633ed2a3164a167fd0b0","1b1bcda3b5ebf452651526d055f81c40f704740ff7ee5142f3de06f6272d9850","d7b8a0b745ec1a2b543b1da47d3f74cd0c166cf584b5ada5d54cbf7a19685457","d8696040f63653a5264026ec8ab0b0dab7c798b1fceb4aa1176a7e4d9875ee5f","dc1b25dda44dc44aa38a7edbf5613fc79d5d3b892338b324fadc228b274f9058","8546b9710e6898c8695cb10029ad0ee420aec72fc4da25f6a3b2a33da4be17a2","a3da0cbd62d41a2577e599bfe4f544795a9735616594d41a87c2a3f8e4979e0e","fa4c1ea9a16e628f67c6a5d5005f018925d570a635c8b0a00adc370ee90ae47a","c78727fd18cd6e7a0509249b9584605de0dd9aa174b23873fd230ab29b40ed5c","d3dc20716650f839c9eb217717e3c8f0c0b2479172a2479bc6011ad7701ed7e6","3cc595f5376b7c6152362b2175e27a950acbbbf3965898d4ea5be445e3165082","573e30281798543ac2707059ca3c966f21958c0a972fe6cdc3a54117b3829e49","1fef2eea1ba7233240a645d2d99dcdcc4e3841bf30f06929c9f12592e46a0c14"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3139760477 · entry 108e9186e8c5677ac88a…
Expected log hash: d54b6e5e20903e9be29e6a5973227ee9b3dbe61bdc0fa6481a5788472cd5976c 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":"v1791428432986","kind":"published-quote","locale":"en","page":"brand:anton-paar","quote":"Works wonderfully.","rating":5,"review_date":"2025-01-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","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 (49133e6803d2…), 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.