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 is a very good app, it helps me do many things.”
Google Play · 5/5 · 2026-08-09

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 2524422814

Proof data

Record hash (SHA-256): 15f15f94d0e6ce6f957f9eef57cdf2fb843effe61bcbca0a406c32f87685854e
Signature (Ed25519, base64): Fk+pUjQCZqGAYFdQJI1YDwab5EzE6OFuUfcnrDM27ltGiPhKBIYpfFlejs1qvib8EbrZmSa8V3/A9led95BqAA==
Merkle root: f8b4f722de05d6805a889681c3818dbde0f5141f0c8463f2762c4a9a02d66a2e
Merkle path: ["15f11dec95ca0d5538a2804a520ab8ebe07970b29799d7fc64636f4b6b3a8247","8d2a98548d5d64b6dca48f64845b73151fa6ede8d6f5b4420258eceecb03e20a","d3caf8a402dbcb7a7fb6e7017af00d6d30c5bfdf022493a0a24b6a8ebad59725","e152eb44eab47204eeed2fa18e1e4c02211a4baff6c6e737dfc13314d8228ef4","5ece1c70af5a4b396dfacf87a12310623ebd867628dcad48a208321f2e1b0bd8","38af842ff35edca5ea362ece35809b1b31926fdbd9926092b7e992689e847c4e","6f8de9107640864f5c2af9587c0d06e748b62788d4af622748ac42bcd2d491e2","f3ce2412c036193f2f4b565a7efe01a571638e426ebf42323b190d1fbfc8528f","cc5ab2d70ef6685cfd6ab38e832b543c36965b113aafec951a25a10c8c9f104f","399bcf109df2bb48c23d79f45c343678a293d227d3f94608d32bec1420d2de9c","3dffb0a8bb43e166c64a4f745c26c18a17d586f53f4c413550a696f95c303d88","f01f1a88016d2021c5a10200fdb43dc229a8703904477e2e0791d78a57d84700","826328db0053b998cfac0c22cd6c575c128ecfa4f75e9fd73febd75c9f8ee792","fd074f6b5b50b116ac3330a06f290a8ebec7ed1849b30507ad6694033af6e1ff","1d6688e1c2658422e04ab99dfb5c8345ecb419dd1f8c6994b4040572f5b4ee4d"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524422814 · entry 108e9186e8c5677a9741…
Expected log hash: e042bf60ab37eb8951abb7a408cc8c7483ec875b9606253deec7a67967130ae2 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":"v1787192294432","kind":"published-quote","locale":"en","page":"theme:canva/delivery/en","quote":"It is a very good app, it helps me do many things.","rating":5,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (f8b4f722de05…), 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.