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.

“Fantastic service”
Google Play · 5/5 · 2025-06-30

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 3140475820

Proof data

Record hash (SHA-256): 157db87d4525f690c6ca0483f8938a33a7e2fee05c0791068aab96a49105e661
Signature (Ed25519, base64): Ynw9yZdEeqQCEMfbEngPVGcRF+U9HHqZe0K6whlRaRA1QKMwMEgH2cXjomq74Ov7U1JxhuteaxhJpasE7q4pBA==
Merkle root: 52d6be1abed15ebd0724a0e1a493d5805e1ea49ddcaf8e9e5584928cd3e4d759
Merkle path: ["1581b377606cd46389f6e7e64f29a98fb29654333ce4c3d79356be4061bc303e","f2bb975c7cca2b09a6fe0229c1fdd8cc028cdd49c15680f092513321f7719812","139ac7950b748b538ff25e7b643dabbb1dcfa44b170881b1e80d470cce3906bb","83ecc1f0d0dfa852b10caff7407caef357aa12c9ef61d744a5458604aa060e5d","6caa5de511d6dd71f7fcfb12ca00ed920912a3badccdcafa1deb6e761df01d1c","48f68216b879a45907e6774540dbaf08b6cf02e2392bfa06fb4be09c430bd771","a58fd4792328abf126dfe05e5b6ec08723ea8ba2eb0b4373b88e4c684e0302c0","bf3797a23ad4f010e37a3203a91c9fb9d8c657d09dfacedcab95fcacbe988f5e","c6474393f84970635d19ad1e1366194c55fc729689bf4f5f5403fd81bbd136c9","a732724d3ac2b7dcc60819bc435886a0a09fa8ed313610a8344ee74ffc7fefb6","ce7fde0d39bc3203f33175015162e8d82b3e49dace80b277c9c59d8520904fd4","2dc8e1d0a0e516acb8dc01ca15884c459f0a0e973ac35b96e1808b584dc8c14f","7d5e1a3da5381843d312196fd4a9f69dbe86b152542df1be09d403d47d5e49c4","71d5ef7f970539b9a82546e0bdc1b1069245bf71351875f786a78e5550da4e15","b72fcc24171828b3fdfff6be65bb433d37b8e51a187739d27a216a784d84cf36"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140475820 · entry 108e9186e8c5677a78c2…
Expected log hash: bb68bef30792bf00f645df162a48943f770bc3f026216a44dedb4651c8ac0917 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":"v1791431489246","kind":"published-quote","locale":"en","page":"brand:storytel","quote":"Fantastic service","rating":5,"review_date":"2025-06-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (52d6be1abed1…), 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.