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 0x0296f7dd037d6368442f8e8990c8487599c4e13314a2d66d87efb933783de1ad. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a64445ad-9f4b-4cac-bb01-1efa1c337c62.json and https://artists.proofprofile.net/proofs/artist/a64445ad-9f4b-4cac-bb01-1efa1c337c62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kawaikutegomen (feat. HoneyWorks, capi & Xcel Siri) [Coachella Remix]
可愛くてごめん (feat. HoneyWorks, かぴ & Xcel Siri) [Coachella Remix]
可愛くてごめん (feat. HoneyWorks & かぴ) [SHIBUYA Remix]
Kawaikutegomen (feat. HoneyWorks & capi) [SHIBUYA Remix]
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 0x5f56046f82256c2797e1b6b6b8e569a9ddc6244d9231b58de966841148699ad3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:21:52Z), 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/SE5BU2575996.