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.

“2-3 ads even start for every song, ridiculous!”
Google Play · 1/5 · 2026-09-19

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 2991846025

Proof data

Record hash (SHA-256): ad70b0bab13df25121aae71f308594ac99df4c32490e2736d032d77080c2f40c
Signature (Ed25519, base64): 2yiSXWUKleNdxqchCWjVVR/qcj8h2A4bwzgKBHwdx6N8CHByNi1fj7UpuRzzzB0ysEfyzQW7hpHYae2FffvuAQ==
Merkle root: d312d00ed6ab2beb6e18f20d8087ad3474eb8b04b26d5ad949e9237bf3ca4c52
Merkle path: ["ad69e8de6b0f2e8220a74cc9747b9e204940fc57a17072788d6a7e8d997a92ec","5d48be8b8f1362b2f237ddeacee8835a2dff468c23ae988124040e8bbc0b12b3","c9985f320f897d719b937bd7ca2a27499c4fe628ac7824d0e8213bf97fa814c9","541787cf9ad1d6e692e4ce8efa255d21409f5550d9f9d36275fc23f3173fbe33","22488fed81afb1a0b867b585b93d08bd01fafe5b1a2d7878c1c026f62d4d6fc6","3150ceaa26e6c6ae85cc423be728a7691c00e7418288a11820e519332099d30f","d013197f76eaf1a03e22c5c7ee00934ff821eb72c0390f455ff11ac85fba7968","e87203a4b7cc00910c66b1e8a35e094c9e88a181c5666c82e5e8277a4578018a","fbc051842f0cd49b705111e19c2b53fd376720d374efeb31ed696895e41520d8","416c93328a62d2e83260f08b2117231aded903c2754a1c037a3a8f67c373c9c3","492b8759bf926e2c61f0f063086de8b3df3a81074c02164aae8e5937028ba844","2b3375ce3a7f55604f62fc17691f141c491b203281dd4c57b0a10d23bc506c51","8e634408bef90bed917b0ccc8b04febd9750c86f8fc48f4eddfd28684443b20e","ac3e8eb9a4dcd818facade9f7856ab850324ee2662bf990758158396deb094a5","799c0ef4fcc26840c2a1a2c1ea34f7ce94ca70a3893bbb37f42757477cf242fc"]
Anchored: 2026-09-29
Public log entry: search.sigstore.dev, log index 2991846025 · entry 108e9186e8c5677a5f08…
Expected log hash: 321e41cd200068478c5cf6f353f00dbd75153d3d8a640e241b1a6e8e4f8ac2ea 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":"v1790574513694","kind":"published-quote","locale":"en","page":"theme:spotify/delivery/en","quote":"2-3 ads even start for every song, ridiculous!","rating":1,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (d312d00ed6ab…), 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.