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.

“sempre dando cupom para matar a fome”
Google Play · 5/5 · 2025-12-16

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): adf48b2ba21d9855a3b8c9e944b513153b075135c4184464f628ab2f3840db6b
Signature (Ed25519, base64): UkIM3FvwxAackMcVvUhIEt8R141BD6QfD4dLA4OvA4WmO4pYiHWHhnUMn9i0nbgKSCCr+Jb9FHqMpWJyNJl8Bw==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["adf42b81f7c0a68cd056a512afcf09623023c3fc99e434381d6ee73f21072caf","0d554211c4d57bcc2638ae4da4cab277b572be9c19c23c1c754af79ab2de49e5","d4e81d6aa63f688db23d9162f1b5b227be8ce05b9f8d993ec3bcb9cc22067921","b3857eedf0fbe1273a210f35c428e8379de545fe447954b53e7d0a7edee87141","4064d44682c00d7bbc6b5df7f4010b1f5ea6513ab308c31339443b1ea6f2cc7c","5f0e219b942e8288e5ae310736d899594147b0f22de196c66dbce7aa1542a410","1e8de240b91895497a96a64d06e13be3c193a8bf34182bfe11eb60ef5629d916","a4027014d5f5dfc4b2d71b5a71b19b51a005247266a982e650196546eaa10ee1","ee737a14b856ef6857a3de28176cb3a91b9b09f825b2adb8d753201271c54adb","9bdf13ce0c696a76d99d43e18f6cb8954e2d6326b330dff9e7c2006fdfae88e9","4602a3c644a17f18863ea4c2e2ebcfe21065ff5cb7b6130686101d6c97aa7979","bcaffb66f7637f1faea00b39e1b086b5c8748b956d5fec046d9c8718408ebc96","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
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/price/pt","quote":"sempre dando cupom para matar a fome","rating":5,"review_date":"2025-12-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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 (2f068f3de56b…), 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.