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.

“This service costs $30 and they do not let you cancel it.”
Apple App Store · 1/5 · 2026-04-17

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 2514654467

Proof data

Record hash (SHA-256): ff9182dd7861882d0d070c4f072ef74c1a64a92efdc3b1b437b5de89ba6b28fb
Signature (Ed25519, base64): GIcjFecHB8tth2nbpPBST32oFfzJrSmXUuqaCcx0bCXvcqAhRguEgBR6eJX+a4s++sEF0msS+2imCANJFaofAA==
Merkle root: 2030d4ef17fc68fad1320305cf569e85a00baea931fba0d3ebe628cf9c90c35f
Merkle path: ["ff9643dfe1d1f17ebd591c1912814f417b34467fa29b00338b8ec219788b5b91","55686584485b934b5fe4707185167d60663bff97dcf6ae21ecda7588fdac08f5","c004eb21adb0b827cb1ce3966e0807c0d12eab61e67292746ee7f80b62e2bbc4","ad7e7f125a0ffbf1137ff7da8f166f9591962d962ffdfe7a293b5a6cf986bf44","b495ba256adeeaff979fa3ee4a949cef87bb65d084d86e15871f33c7ac4ab353","a80270ade53f3730b1e9333b106fe7a2626f83c67d2d56358f5a38b3339da94a","d3e144191844b96d22234ddd69e8f9e15e2c67a55ddb6f1c88a4dc09e10f14e1","cca51b4931733f33b3658828d740a30b3bcbbf8ed6fc4b0c01d2f34500c39ef9","5960eebfec479933c26b91a44b12a8dcd102297ae33da08e338bad0bb1d869ed","ba7d688cf7aa2553a6d16d39a57c173aa2a889c551139b3c5683169b12be5b7d","ac47b10da702a9479bd116280fe3e40eddfcf168ceacbd9cb725f508893ed250","20ea0d6aeaab7028adab5147f39d1ebf52355cf181354f5c166cdff8fc496c2e"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514654467 · entry 108e9186e8c5677a9253…
Expected log hash: ddd8d6dfa3771a4106292f7bec674337dc9649465b28b118bb17bfc2b8ff0a67 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":"v1787132872903","kind":"published-quote","locale":"en","page":"brand:luminpdf","quote":"This service costs $30 and they do not let you cancel it.","rating":1,"review_date":"2026-04-17","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1367372862?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 (2030d4ef17fc…), 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.