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 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 0x1e46c83d405c76a543e90e15138809c24702acebb578ec6b84afafdb74728b35. 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/46d7acd1-cd79-482c-a9ab-12bc607ce45f.json and https://artists.proofprofile.net/proofs/artist/46d7acd1-cd79-482c-a9ab-12bc607ce45f.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 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 0xf9f7613f8f82902a7d98024e403f445d9278c8e68af651c915b358187576424d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZK6K2420759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee85f2c98d5254094fc60ee36a5bafb1779e9ccd84a31434f0139c21d04e3ea1. 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/QZK6K2420760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1bc915429d033ca3c4f4a280652d76019c80275260cb1d1d61f0bca0bbe626. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZK6K2420762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8557abd43fff839aaf6b1e0c018530717cc1e9526b784838174ea712bc0817. 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/QZK6K2420763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1be2fa69ddea01ea36f1f57700f153dc833eed14402680653fa45138bfca305. 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/USWB12002161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cfa4d7aeb729a73a178a6db4528890265ad2a5549f4a69c73fdea409e9fffe. 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/USWB12002662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bc62026f13539f592ee605d2c67fdd807f5da02e214075de2b9691e557df42. 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/USWB12002663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4164cf0e945d5cd07fb88d12dab5782b469a0518bd8afcbb5b6b9323a9e795. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USWB12002666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c93f599c16ddd5ba4a6f8c5149e15227c48cb003b5675204972976bf601709a. 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/USWB12002667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1be2fa69ddea01ea36f1f57700f153dc833eed14402680653fa45138bfca305. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWB12002161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2023a04e52e3e7d2f4480208f1544d448832c5b5bb773c72aa9e2d56cb47ef. 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/USWB12002668.
Let's Go (Space Boogie) [Black Noi$e Remix]
Let's Go (Space Boogie) - Black Noi$e Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6963c16a179296dfb96b31236999579f049244d33248f0d768da090cae83ed4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF2100088.
Let's Go (Space Boogie) - Black Noi$e Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe1801452d2a6cb392e8f923a9bf63ea97b93213d49fba06145d68ecf7545f6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBMYF2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aed2b63bfa4214065599482669816c0b76ac99a335add7c9efeadfc04a91ac. 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/USYBL2001028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadd31a63498122850020d7f340745921f0cc7b21ec0eedea1cdf03f03ee27e9. 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/USYBL2001034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf0474876003d7ff732af1c42c891ad9d22ef1e384ca4617f5fb9ba6b850069. 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/US2J71905301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cb211ff10d19d4f0589f417821a1ff4022589dcccbb06f1c047b07d00352e0. 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/US2J71905304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438aed4506c6ed95fd089303d9af0c4e974e6e5afbb3adb2706ec76aff8ec7f1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:40:21Z), 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/US2J71905311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8c460cca0a4cdc07b2521245a1fb26d6c02a857612ccc4493153475ccdc467. 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/US2J71905312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f47ec6ea1abb8747c523091df7da458bd9cabfa8e9d217c92a94209371980e1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADN1800569.