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.

“Spotify Premium is like a "luxury" I allowed myself to have.”

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 3177778280

Proof data

Record hash (SHA-256)

8660bdaee8afa5ea035ec06885475e6d9d79326c4bdc1942d663a63990f14a33

Signature (Ed25519, base64)

upWaStS0rawIWX6CIojUoal6iaA2k/KTKct8i8iQyyhIYUriIuCdjIcIspayWFAtf9SMYbADX12ZT1FyJUYEDQ==

Merkle root

9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59

Merkle path

["865dd9e97f348b727d12b8636f94730d62bfcb39f76d717d15adacf08cfe58a2","731f1263b657d24edd75b2423171894cf72a9207c017f6d7cd26cbd567af0803","24b081cbce3bae6b867b792b1a43248541770318ae56155927c626f49c9f15b5","df79f8ae6d667cbed03f0b897defd8d5537e7963caaa02e379d63a371935f88b","71d3dfef02fc372c8e455877f61dd48a8938693f403c7bb5c51683a446ea1ea9","814568362d0c4513f61c726c8f742c1ded72829113d008962980d239512daeb5","ba18e3a877662276d70e1191eb625e319a71aee551a6feaae2cea195ac0e07ab","71adb67719804363a8a6125b6359b83db54eaefba28350ded19f5469bc0b1a25","81f8cc34f36fd92b9da5a914b82e09bd23722590c6fde619c21b715083183183","7d1147329e511ac4341744f8f5470ac61723075605a22f52c63ee3b788a0260b","992d22df02a2342802900c6dbe84e6f1af561b269842a209e5ade1de56665d3d","41463e83ceeb46951ec6c8ad9bc917aa51baed7fe823c51e10fb78e1729cda44","aa0e555b7739d6e04cbb925a0d34787576df4ae9ad90f53f6416ac2f935a93ac","e3d4f74560ebefc008080794ff80cf2bbc3851f4365eda6b2fbf79bf3ad31493","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…

Expected log hash

6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"Spotify Premium is like a \"luxury\" I allowed myself to have.","rating":5,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (9bf5e8bc71b8…), 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.