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.

“You forget to cancel your free trial? $108 charged to your card?”

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 3258673097

Proof data

Record hash (SHA-256)

04bd91d24f176c3dfe63e0d7d4bb6850f5c5c83af2cf37f3640addc288ea72e9

Signature (Ed25519, base64)

wtfQHlZYRMhxOCcs9WLlIudElK0aempvxgndOvS49WNHdQUwhvdrg665WwxRmrxRHHTuOkA0O3SGnTGA2yPqBQ==

Merkle root

1e69109d842117168677c2c7aab9689ac78923960f86fb642566271a6ebec358

Merkle path

["04b4f54d0fc01e7d79e9f06704954df76c598a7bf5bac7dd173e06e91a1a9ac0","54b4b64543306b8a001b1d064a4a7a5195f98e730fb4f4300a02e8b0b6e1eb56","eaebe95749d0eb26c914d236a46df616fc80434b2050c70e830e0d868203ab1e","afe736398349032a4fd79e8e9cde150ddfbb01b4d481c9750f4c50cdfd569766","bcbfd4f89e718ed6be0b8f4883facf62afe6df980326317ee7e47ff529208506","3f9b71bab9ae3a73c21c6b866a17cb35ab830b58f590a7d3d83185af435df472","34f61bb90b460b10dbd928016a2bcc3d05e8c6978819b3571788d3f4c2777dee","a41d8947b0b96abb6d52f7102c883096e1bda909edb5a208d348a99cc8d6fc8b","dcc98d2e3f859b08e5e03199933fcf3334a1ba30de14ebe032be102c3640a0b0","5e3425bd907dd5847041d20b70707de0741cd745ee67a1bb536769ba0bad71a0","8f28289dca323bd2cf87bec411b122a2fcda256fcce0cb8b36c656779d0daa77","e8ee33453c42c8b9a0e73dbe9a65f0ef421d213e42b0e7964904098c25de97d6","7c33667a483d5fd3b9ed47c00df3203f479cead457d361a57e3e5a90d1401d8b","4db0e65440b78c494263fe6b915a75fbf2b04ea1cd2fed0eeba5f9cb4589aa37"]

Anchored

2026-10-15

Public log entry

search.sigstore.dev, log index 3258673097 · entry 108e9186e8c5677ab832…

Expected log hash

c57cff5f0f2da5f1c24e09823c0cd10c485830bed55f44ffe5864187f8e896d3 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":"v1792033864449","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"You forget to cancel your free trial? $108 charged to your card?","rating":1,"review_date":"2025-08-27","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1485259500?see-all=reviews","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 (1e69109d8421…), 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.