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 0xdfeea575ac76a2dab7c06deb5dc5741587c6dc1d9495b9b124d3d83ff9ed3de8. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42157bbd-4f21-4dd9-b69b-17d0bd0ececb.json and https://artists.proofprofile.net/proofs/artist/42157bbd-4f21-4dd9-b69b-17d0bd0ececb.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 0x14edb3bd04fde5ea6c36dc1fc00c0e67b5f9ba470d36103ba3adff63af4d9d7e. 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/USLD91710727.
Breakdance (feat. Kap G, Money Makin Nique & Mike Fresh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf5a12ef345c6f241a5f7be707cf56e8c0929fef638c2b2750081844e208f95. 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/QZNMW2294220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b0bea8199a5493fae8bbf10b75ff45e1a8fc807a3de9c7dd0ad9f2450e76fd. 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/QZNMT2358508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8b573dcc49059230a93849f53bbcde3e48cb55870c55e0bfe199760937e411. 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/QZNMT2358509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a5e838a663858cd84fa13386513186a1b66c0944948a65a3956dbd5944f9ef. 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/QZNMT2358511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659e3fe44f95f721ce091c28a40e2351a58c81a07ab5965f8b6d890bfd94894e. 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/QZZ8B2463429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9c68d55e85332824109ae344cf7fc2b420571deac1b0deb44873d99196fd2d. 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/QZZ8B2463613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13211dd076b25a332bdaca2254c0f1e664ef78c0d3d8685a966ef5cd5a9eed86. 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/QZZ8B2463758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8555b0049e7a4fc26f1755588ed4edf6ba1f98630ab7f87ec93a0888e92b33de. 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/QZDA61825660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf215e0a9730c36693db9f53772cb4310bd020115bdb61b14d2b21d5eb160e014. 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/CA5KR1563001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77180304803c65db7d497b6bf0d96a8e077fd20db3d468aeabc2b14bb55804c9. 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/CA5KR1563003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4362ffacdf2947cd04d0eb8a6425ec3a2cff98890965da9306e734e63af6bf8d. 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/CA5KR1563006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb41632c9b29948375eeabc0473b5115f901054f9f86d026157085eaabb8d7f. 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/CALVP1959768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ae6d9b134ece3881646523bc9b06500f9222a8e94300954657a444bc82a6ba. 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/QZFZ22348642.
404 (feat. CyHi The Prynce & Money Makin' Nique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f516a1c34847c770435084e8e2aa3c8dc454a58bc89aa429a940f6ebeea330. 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/USQX91602060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ffe31e432306feed11ef029fc707039538cd64b946fbe82b78c6247aee212d. 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/USQX91602594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f516a1c34847c770435084e8e2aa3c8dc454a58bc89aa429a940f6ebeea330. 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/USQX91602060.
Ready, Set, Go (feat. Money Makin Nique)