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.

“também uma forma de avaliar o restaurante”

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 2893887498

Proof data

Record hash (SHA-256)

3103df1e180b3d54f71e88fe13dac3d3a2c84a02264a674f05a40d578eb976e4

Signature (Ed25519, base64)

02tJPlioCIW8i54kT3+EG6LoS25tABSHG6zblWYw3DVGitgtrdC9ZBzifbu8fbtNUULIb6tSEMaBb/2fuxxIAA==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["310ae8485041bead26d56c2076d8f2e47293d8b849eae7787812f6923dc4291f","10899aaacae3ef67634196140861fb3055539456e77fdc4c9f4fe5027a39d24b","8f9d48ee941dd1960dffc200b11291b3216a97172263a031c8cc4dfea3c2cb35","ac59747f25807a8074463747e89333f22709d66dca92249a65d88d6ae9b09af4","090cd5d2d8825929936b5b389be25a117fdadba3c066ee1ecc190ea4ac13afa6","a2104c8088cae21f2f4c9b6a1cb7e8bdecdaa88afb9b734106c74cdfad54e2cf","60721a3e9386bda58ff0eefd3b9a6efeeebd80d86beadc938fc765bac9849109","446af680f5d288f3d9e2104d8cb7741de6aff2095ae841acdbbe0573777ce77c","b622a2fdfab1ec87a2a4a7fdab2a1f7d238d81d255700ae7db920e1ded5bf66d","398671219ca23f0cdc017271e5271c257f722c2474bb46e50ce96077c20b6054","198ec620523c93713c12a5fdef13ab3b73c38312f8c69950c0a24237f8311f64","ba64597144ad55469e4304807853557493bdf960abe724dca5437e442c223165","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"pt","page":"theme:uairango/communication/pt","quote":"também uma forma de avaliar o restaurante","rating":3,"review_date":"2025-08-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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 (2f068f3de56b…), 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.