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 0xab7097443f9321b05d9a406004cb23a456f1ded903518e4be44b88ee25397250. 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/0fc70088-cee3-488b-a673-04d3d232fd41.json and https://artists.proofprofile.net/proofs/artist/0fc70088-cee3-488b-a673-04d3d232fd41.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 0xce0e2db5ac2618be40aeabf79f3d87c53908411ac1d7f671c91a666e209faa97. 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/QM6N22282693.
Cold Freestyle (with Bloody Civilian & SHŌLZ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a65a94357c5f0ded56b125b31eb6c95367930ca80741d3e21b282d5383504ec. 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/QM6N22282694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ceab0994b28c6809e8b7a1ed606240963aa718712fd6278cff92e13ab3caff. 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/QM6N22282695.
Wedding Ring (with WANI, Boj, Odunsi (The Engine), Odeal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc134f1f82b93279f473de9561cdbd882478a7a34ffdc6ad05adebc00c26f284b. 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/QM6N22237333.
Good Good (with Joyce Olong, SOLIS & Azanti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc991b84cc1f1fa2971988bdad7eb02655970ea1b5da8a8037949b11855b3deb0. 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/QM6N22282697.
Pim Pam (with MOJO AF, PsychoYP, Fresh L, Zamir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa6d58cc99afb389119f4b9d86ed1935b501d56a816633fc416c031de8cf7f7. 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/QM6N22282699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6798d3e86453b68e4b4a3c4c4790bfcb921910210da29bef898bdc47a88e35a. 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/QM6N22282700.
Bittermooncake (with Tochi Bedford, Zirra, SGawD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994a42bf047de1976081a4718d8f2fa12986b779b0573895d8d17272b24c7cc7. 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/QM6N22282701.
RaRa (with SL, Maison 2500, New World Ray, Deto Black)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b8a46daac900379c88a6c07b9108dae3b2e1a64a4c23b95e8108e440ea994c. 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/QM6N22282702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7a97879dcd5b4ae8a4cf5d36e07c016b4acdc44946878e35a3cd47eee4d519. 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/QM6N22282703.
Honest (with Teezee, Knucks, Show Dem Camp)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a565d93667ba9d13c9c72eac3fbab9de2bf456e51c51a9edc7f7228bad6136. 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/QM6N22282704.
EDMP (E Dey Move Person with Cruel Santino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a1828440f7a34902eb7b17c1665ffa30fe4557fcc0acdc76332cc55655fcf4. 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/QM6N22282705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69d52f0b0cf6f2e4e9a150a5c6162588df21a445f068c44e8aea95642013d2b. 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/QM6N22282706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5769545143891f55ba869238773b5c12f7694233bb880b32c3de1dc523b11117. 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/QM4TW2285527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acbf117b2a8ac7748e85cf6c57725a58198f5fa6b88f520eaeae29f9a6b277e. 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/USA2P2307197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf877fe6148b0deddbcfa98ab28b3fcf931c378f992f9953882dc65d68d41906. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2307198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaca8eafa19e1de8f56bba085831d1f1223b15740668dafaddf15c234e9fa8a. 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/USA2P2342952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f639c851194e93c32d14c0ff24ebcac4e0718d5a4c44e87db25892294d874ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2352910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9895c13afa5cab392a1957e3947349adf2b07345cd25e09467886a6c52f51c1. 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/USA2P2352911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b84c8fbf6086d28557231752c1eae12eabb8908147244764a73332c75362990. 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/USA2P2352912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10529a1ae3f8a91a61f1ad3f58f41b1d64bc385b9328752f981a66934cfe5d4. 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/USA2P2352913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37c34001902fe513803ceb3bc83a94bfacb7e054ada878389e08ac6ed00bf8a. 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/USA2P2352915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf458d4f1b4fe73c28465c30204685695cea65d2f68fcf8debeb5d4b386aa2b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2352916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e844e861fdfae661a0e2841623dd9466bbeb5f00d653779e35ad5b46e001699. 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/USA2P2352917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd411f4c0288f6c5fa1b103763f91fd55bc0268fa604de5e95003ac72c76fc50. 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/US23A1585059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9bd8d5c9107513ec713f2df91b90f823e67ff5da12e8a2e5100b313bcd4e02. 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/US23A1588233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269c010caef7ad249b218a9b7dfebf6bc021884520a8bc15fc707492a8b2c026. 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/US23A1588234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbef694e5ed116145b12dd53b085a965ea15590f8dea1ecf2773c5d065f2534. 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/US23A1588236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b6f558ebb422c5d67821e4df16079921caea2209b2e5599092e5a4902ca13b. 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/US23A1588237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0fb0e56bd3a8b22268dc82bf1b074f85fbabbe58d1ed15f0317ce4f3eaf110. 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/USA2P2474201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ca9e59ab746089702bfb3c58b5cb827886cacfc66f76609f26874ca9ff3b85. 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/USA2P2474202.