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 0x9b78dd4ca7d1a0832ec69c963bd15df0123bfdaed56a05e05329cc3e499c99ba. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9012230d-e732-486a-a06c-ebacc6c8d24a.json and https://artists.proofprofile.net/proofs/artist/9012230d-e732-486a-a06c-ebacc6c8d24a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Around the World : Ireland, Vol. 3
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 0x55dce7790247ea893687f3a0ac60cfcb7e421d96ed34d9a3c2be55013ab36c53. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:02Z), 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/TCACE1500976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c06d912449a37db1a65e06a79815759b5aecd1a12cb6a41dec7fee3f8ffde44. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCACE1500978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8c9234e4280830ebe0fa8a8a06fdac0bcbd609a8e813fbd602629725c633f6. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/TCACE1500984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2237215bac19990526c9e8e611e74dc2633657b99fa951c87191618a31d54724. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TCACE1500987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4779b50c6e0a11c34cce7b1c21469cc50a22974ee466f3eb51fb17ae817048d3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCACH1559887.
คำตอบ (From "คู่ปรับฉบับหัวใจ")
Nobody Care for Me (feat. georgetragic) - Single
Lakers Superstar (A Kobe Bryant Tribute)
Aluku Records Various Compilation SA Edition Pt.4 (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763c7a02d05ddba2480fa261fe6fd1c054f9c558a464062712719bff5e5c88a9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBLV62305765.