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 0x11dbafb2b52ec54417a6e927e83c4a97800d63a73a7b883e1709206bd174add9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75b55a1d-09b7-4c49-8b8f-c1682c570202.json and https://artists.proofprofile.net/proofs/artist/75b55a1d-09b7-4c49-8b8f-c1682c570202.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
รักติดไซเรน (My Ambulance) [From รักฉุดใจนายฉุกเฉิน Original Soundtrack]
รักติดไซเรน Midnight Version (From รักฉุดใจนายฉุกเฉิน)
รักติดไซเรน (Midnight Version) [Ost.รักฉุดใจนายฉุกเฉิน]
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 0x957c398691de730d32925b0cf9b379f334d300f638e1912df86d3fe2b449472f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR10S2053262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4191bde72b66910e6a17482794b19f908f8d71267b448e5bb4ff11dda769d311. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR2X42167955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb805752a99b97232dab02cd8d0563dd633c5ee9bb316d589231a0b1d9c977985. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TH2DY2200338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe093f750a28fbd691f64d2f6c643fcf72af7d36e09237d6f059f51ce1e8eeb8b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TH2DY2400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64184fa9138b53cb7746d93e857ec6c036432e2e28813dadbdb1d841cacd35b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TH2DY2400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd6f284522fd475bd7fa9cde2ade54cbec0772e6180578f93c08ac675136496. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/TH2DY2400629.