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.

“Their subscription for this is honestly a ripoff and a terrible business decision.”
Apple App Store · 1/5 · 2026-04-28

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 3288590621

Proof data

Record hash (SHA-256): 753297789ebc7c70393c446de315bd2e190f69c753b060db3ff64766fbdcbc48
Signature (Ed25519, base64): EWo0cHbYyi6jlKO75LmPwZ5gPpYKVMfEp1mvBFKOFrZGdXhDnEuKFyv55rO7YorUyJJ2bEFe7oChADqyZgnICw==
Merkle root: 5ee295eff08f25e1ca2fd839bd395df8ebef79af0e57c3d4ee8d263342a19422
Merkle path: ["752bbb60ad482c54b7210b87599cbfc8c3295e9a0b6d9e19dd89c20c56305e37","c956514ef71401efd4b2871830661fe3aecaad3c9433e20d523f8970d41c9078","90d8d82bea43862e52e8239d1e0d69122899f6eaf012e6b92a3058d5a953bc14","7a8c9599603bb4b7228f297306aff96264e531b242c609acdfbc036fe903785d","d240a9e74a9d9c879b52f360809242bb711dc10a1e2e17a66f5afffb78840112","9b941357ac81f8bfcdeb1e178c35f8b032d1ee5e27de5670c03bd727bb1e78ad","40404e6c4e8752a2803c2aaf9465044707794badb575c25dbfb5a2a30f032498","29979f747c74bc5a9a0e57bcd1ad3aef7f8cbc19bd43fd0f110cf1bbb796623b","b6dfd3ea7ce4ebe5ce22b76c5d96e2fa99bcfc8bd397afb7bca884b0408dad1a","993dc9eca02cf8a20b3817a34d7922b726a07765b2db154b9db7ef4efb113c83","4fd9419ef082dff72fbf98a368aec02f6290dfabb8d6354f27878c055d17db6f","31bf21bf120095ba7e058418d9fb4f9ce8924ef88f306ad5cf685b3b8d4afbf3","149a88e487e0a55b368195abac6188b4f1a5ff2534a675089a6bffcc120ce8bc"]
Anchored: 2026-10-17
Public log entry: search.sigstore.dev, log index 3288590621 · entry 108e9186e8c5677a25c9…
Expected log hash: 74cd7239ea435495013841baa58ae65725dc6474b09f06da03b154f0c5d58357 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":"v1792206865504","kind":"published-quote","locale":"en","page":"brand:anton-paar","quote":"Their subscription for this is honestly a ripoff and a terrible business decision.","rating":1,"review_date":"2026-04-28","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1521627812?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 (5ee295eff08f…), 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.