1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4116f31aa05947a9f9dea20730a25befa5313b6b6b04c8c1589d93e9c2dc30b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bf25c3c-1bfd-457f-a40d-7e5a1cb7ed08.json and https://artists.proofprofile.net/proofs/artist/5bf25c3c-1bfd-457f-a40d-7e5a1cb7ed08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ジャズナイトライフ：スムーズジャズ・ラウンジ・ムード・環境音楽
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75a665014d95d08b1eebaf80185f925dcbd9dbe55d09dc35daaec084920f4c1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO101625736.
ジャズリラックス音楽：インストメンタル自然癒しサウンド・大人の落ち着くゆったりＢＧＭ
ボサノバジャズ音楽：ピアノ・バーのＢＧＭ・大人の空間音楽
レストランジャズ音楽：ディナーＢＧＭ・バー空間音楽・なめらかなジャズミュージック
店内ジャズＢＧＭ：カフェ・バーの上品なジャズ・落ち着くメロディ
ジャズライフ：ラウンジＢＧＭ・夜ジャズ・バーＢＧＭ・カフェＢＧＭ