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 could quickly get the pdf I needed by just signing in, no need to pay anything, it’s optional.”
Apple App Store · 5/5 · 2025-04-17

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 2632602917

Proof data

Record hash (SHA-256): 103442d775ca91b35ec319bdab559210c0aff0d0b7913300adaaeb544e707e8a
Signature (Ed25519, base64): nzU5oaU2bLc6tpJBWsdPZ5sf7ZcLh1LQLdWl2TyGtX7+t33nNGYiHEK3pK600pavsXUDjommxdNXp7Odewu+DQ==
Merkle root: a1293218aac45efa4adfbbfe42c204c0a0d24fd3278271e06c8ce5d1d235b321
Merkle path: ["1034d687481c3c8c6b6b8276378e34be62e55efbc0d932d5665b9534bd9ae485","c0d2a1227ccb9399d75f4e37cb4cf8e0bf44a9c37171961aa52b597b51eaeadb","f2100d9a48dcd03d2ca5fdccf80d0f59d0c231542627c156e9313fc54bfaffa3","c4da6b64b32163663d01e870076592fff07890023bc4e31e3c1d1a66a852d0f5","c47c7a5ae0602b33b0334e67ffe0a0b0769f05e15bfa7649756d7964c8ce474e","367805ccdf4777ca2f66186c0ac5296d45cb4f93820fe57543b097d0076a9463","71bc056574c890537e232fbc1e66bbd72b7aae87fd6b87d41505f9351cc91163","c15e1457c5933719636f6db0fa0795a9c2202621022f9ba686927a5f9729ac33","533b6e1a8a44ee0dfb12b2b63a948050714f61fbd44de2d22d3baec3812022b8","306d6fa8f7c61a9bd5dc8d9a3bd1aa2f5dd2cdeb00afcf55495c295d2f6288af","60624b9dd483e00e1a6a5008db3fde1f1bf812b2a106ceb78d252cb228414816","c0af6b81f9076d0cdc82ccc0e5134d3ba3e9d1803acafc23dc0ce30341f4e4c9","a308c242d33871cd96052fa5f0f93b6b9f38d0c57cf5b383e09156754d85b70c","c8ed903b07bccf4e9ef2760d806cf4cfed1bdc4cf212006ba2c6687880ded864","18e575f6187bba98afd0e2a71a60397b39232fc4221abc93dd2e7c4e157c8792"]
Anchored: 2026-08-29
Public log entry: search.sigstore.dev, log index 2632602917 · entry 108e9186e8c5677a1f9e…
Expected log hash: 18ac9eefa605c95be79eba9f5933d9f28816e7c4567c9a5ff34f72ac1de06791 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":"v1787974698062","kind":"published-quote","locale":"en","page":"product:smallpdf/sign-pdf/en","quote":"I could quickly get the pdf I needed by just signing in, no need to pay anything, it’s optional.","rating":5,"review_date":"2025-04-17","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1485259500?see-all=reviews","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 (a1293218aac4…), 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.