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.

“I gave it 5 stars so it would show up at the top (just kidding).”
Google Play · 5/5 · 2026-03-29

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): f6efe4adeb43032b2d1906cd881167677628a4841628cd66752a8a197b810fa8
Signature (Ed25519, base64): zgdkz9yGcyfrxgmdu0od7/MS7KP78kA/GVsx9yvQZbDO+9po6Iu3OEba0OdozrvVrZNeg7mF/jTHZRFAlaEFBg==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["f6f8931bde297a443ef06599d804bf56d691489c51025147570a840ad557e814","f8784d109cf6230cb1614262a9635c835187c1a04905dcd6063bc5a8144a844b","ebfd0f60a13929618fc922dac211e51eb8d9cbfc54e1497b846ac377d96a9c45","e7ff1f780a81de158ac6c9ea0aa1af2bb498d1a64fb741b2402043b1e8d65a8c","84193c3cc85206a6e8ed69e4c56037af70df95b34bab3e0b825737d89d859b82","50d1db08c2f3159ee1a5cf8a6ca77e7d14406695c98735f72d15682a1e3e0978","7f320c316bb45e6ce0d933c74f0473e4a896e18e3fbb5c2dd1a22651be5ad2d5","8d677181cc1330eee319669eaf8a1b72574c6d7d2bc20cf552347de7644b5c1c","bd32e511be05756fb012a40c67cd1716cfdff1134d00415aa8bc41d5125d6095","d32c39bad5dce323e576c283506b6fb7150c1c5a45bafb8288504a1620175dbf","58fcebd1d3d07f3a6ba5f31279f2ecf014cdac37bfe65872be1ec5d6a456940d","e89b125d6d75a826a464fa50668f6e82a6668dbc929bfd3fce7c23cc14adfdbc","c975f4076f62a76765a4bc502e988829db65110a1650004b828d2dfb5f90a9da","f92a7fda99af63eb008476cac47b147880eec6868f847624f8b438c917195408","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:vaia/delivery/en","quote":"I gave it 5 stars so it would show up at the top (just kidding).","rating":5,"review_date":"2026-03-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.