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 0xcdb1f701f9ca971847ea3e5f3aefa602107f13652fde58a855f1ffa00816a131. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8c2a4701-1442-4f3a-b782-188222c8451e.json and https://artists.proofprofile.net/proofs/artist/8c2a4701-1442-4f3a-b782-188222c8451e.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 0x1d5c0747f19e04f55899219142cb439fa33560737bbe2dcfd3aa88e40fa31f48. 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/BEB681900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6268b0797bfb101ae1ac8b9892d3b7deffc015f532cfe199b55b17df6944af8. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/BEB682000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818fdf5238ddfe1836bb412c3a1427af06c45114c71dcbb9a6187b4165be585e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BEB682000534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3c314b3accadd3c41cd8849b6127750b5541f90e8f229410d638b829b10bbf. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:10:22Z), 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/BEB682000553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c63786938b9e98546bdbb8ae0e26152dbd49f2ecad405f5f6d173f2cacedb8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BEB682100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b01ade8dedd3935a725986af1497acd42c01473ff53eecf87f89131a7d992ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEB682100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56007c1f2c96c14fa362e20cecd9041a67700f9eee6f7006903e6b787d21585. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BEB682100269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7876981ed7f59719b7b1655635fbd38f22090f5c8c171a92bf6b94a41ff3b7e5. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BEB682100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83090d6a150d9f114239f69678141fad44107ac63a7c408d56896bdcbe9de37a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BEB682100507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4feab9df74cfeaf77f507fcf95770ee045d8cf170862eef7cb3e69ef6085943. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/BEB682200462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd861f5c4d1e037aa37517bc8969c252c6d1705f0b72b695f1e14630ecea1e01a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:57:36Z), 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/BEB682300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20604beabc04230ab6df974d2d66f6c75168f556758e595c2f9272c3fb2f98be. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BEB682300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1a3923a234ed7ee76eebc777c44c12251e5930e9dd7f341ed95b032967d4c1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BEB682300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64619d64840f8908d14225278b87ff9a4e1843eefb37741b1ddd963d4c518665. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BEB682300533.
It's In Your DNA (Official Hardstyle DNA Anthem 2024)
Better As Friends - Serzo & Zombic Remix / Open Beatz Anthem 2023
Better As Friends (Serzo & Zombic Remix / Open Beatz Anthem 2023)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15604617eb11e90e692132fcdf8dd79b8dfbb84ceecc26f37522750b9a325823. 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/DEUM72308707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc41bfc49fb87fcaa410e76427530df6471e9eb2d76315d3865449898f365a70. 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/FR9W12353942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6597fa3b703bec7fe1c95d9399634cfaf4798e877eca7c6183fa110d2b682ca. 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/BEB682000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec265d3f62c500f4d420410f2c8a2efabd34e19bf38bd767d5e0c21387fe1102. 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/BEB682300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1484a63a03a266d620f4a85ce4b24f633cd84ec1a4c2acb39b73511aa41ece. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BEB682400083.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5c2bca8134a254a480b9b84c476caa6b0302c52e842399d1e22d75865fe379. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU1944298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88c2c882ab88de52846f3f0661757545c6b8df12a4bfc77ce1d042353f2ea48. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBKQU1904527.