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.

“cancelled day of subscription but instead of refund stuck with garbage for a year.”
Google Play · 1/5 · 2025-09-19

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 2907673729

Proof data

Record hash (SHA-256): 490a403673d557ce0ddd3e12272724893e3d35d7130c5cf6690a66ce2092197d
Signature (Ed25519, base64): vE2VBTbrnhLQPkKUXJKjAcNRRTb0+Jjqhw9K7N/08++QqlVwbNlk0dDFYe42AGsjK5x78G5Uu4OSUAfyYdiHBg==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["49074df0ba96c499053d68c14242c44f2f0a4842b643bcbd6b51a25824bd7dc3","dee59d33349f423623c6586a73f42081b3f2801c21c26c9a214641a5df4aaf14","58340e8cf42049849c138e539b7e3b67395e96a4d0f5fe2429aa5222d2732125","05f26bb781963c54fdcb9aecc6cac10bbe1eae021c63a2a8cb1aff933aef77c4","1dd62fb016ee682a137e146d0dbccd145c139ce7b3c42acc9daea2f3a0c9571d","30117de8570e304d71ec9b1d521ea40314b080ddf7e65c9c0825c42771281865","343789b49d9d523f368afacbe07d027e07a86139cdbb81a53fa39ed24ab40674","892ba5eda45a763f44ce628219318e17e0416153d7c047bac92ea187abfe2350","c6314dcb00c3da1f4c44b4c4b7046af86ffe440da2c21e877ad9255f5d04280f","d79f3d0479c675e8d87cad7ff3688260e6e42cc3d4dbdf6e33787a17fa7cc25d","7d0a97ae88d1ec4b960642b3dc54d0419bfc6e1cad0abfd4383c77fc83cb691b","0197d988959ac12f7d8946ff2581c88b7ba9a4305193828cca53fbbb9832a064","bcc0d977b8ab2060a87584efe5d0f5545e840726716d3f02c248db108122259f","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]
Anchored: 2026-09-22
Public log entry: search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash: bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:vaia/returns/en","quote":"cancelled day of subscription but instead of refund stuck with garbage for a year.","rating":1,"review_date":"2025-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.