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 0x0c1408d8e856a3d7221bff21ba0abcfdee379e45fdd8bb951964da6e386e70d8. 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/567796f6-315c-4179-a4ff-f0b7363f7f2b.json and https://artists.proofprofile.net/proofs/artist/567796f6-315c-4179-a4ff-f0b7363f7f2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3095ff867845a3795f10697fe1f030e58e2c28b0d0502a0ad63296cad610533f. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/TCJPO2160962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c81412680a918a7524ab1403af117be4ea8bd483e1e89d81e4f868df774cdd. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/TCJPA2467547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35d8105cbac593413a07a2989de68ba1ae1e2c6544d826c1b477147ab91f368. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:21:24Z), 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/TCJPA2467563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fcb7b5ffc7dfd8e27c7b16a7d28efa04b69526755176ff7aa65fa8f61569f6. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:42:06Z), 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/TCJPA2467564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54304b815a12f54939ce5072780af6a3ec11c34eb8e81b7e176da545c1878706. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPA2467570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2612b21303817cbe1c71d193f4f11b269b6f9d96a59527f9284d12c5a2ba2fdd. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCJPA2467573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d0c67f5222e09eeb7e710cd48151270f6d9817cdd52a5ff5609dc8b61e8eca. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCJPA2467574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a4d9d00aba7747e8138bdbfeb1c23bdc8d8dfd6d9d5470385e204e9fc6b084. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCJPA2467580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f802b3b9d7b4d30ac1c616c6991e5a68449055690be6304d22941b4b641067. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCJPS2228159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fcc9da7d063d29a37813d11ff8daf0c50aca40b52445e73bc9a2757f05b9dd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB602194277.
HACNAMATADA DUB Youth of Roots (feat. Youth of Roots)
HACNAMATADA ALL JAPANESE DUB MIX VOL:19 #HACNAMATADA JAPANAESE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b1422d30395c3e92c0ee9093c08f1661a12429e6bef0c95fdd1f60c3787a62. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPW2371376.
HACNAMATADA SOUND DUB (feat. Youth of Roots)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b88fae29d2003b588ca12f444e4d2daf71213d90df967b9364ed8fe3a6d26. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPW2371464.