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 0xf15ec9d5f047a6821a422eb70c4f5c2a42e664d4c2c32828329308fea9763197. 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/06bb0c3b-5ad5-46aa-bf60-e391a016a259.json and https://artists.proofprofile.net/proofs/artist/06bb0c3b-5ad5-46aa-bf60-e391a016a259.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bring it On (feat. Chymamusique and Shazmusic)
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 0xa095f1c2c6ee73b04049ee5cf46fd0e74f40db3a97bd1186d02445cbc6b28341. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZA56E2102488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330611ef81b360134cec4a44f05e3d80fbb44a51894f353de83f7ed94e51d473. 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/ZAGN11600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06be18e94c62d8dbfa96cd64f734f95869396b1d343f5daac7158674b64a1246. 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/ZAGN11600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806a10e3ac3cddf2b7f383bf9f02b6b3e7b035f5310bef8af6fe9c6703b91518. 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/ZAGN11600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45673a580c3bd94c958b92033eb9b0f06b3eb1f87c53a551e207adc3d23cf6aa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZA34K2301504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfe6ab826069e1b6b90d9a0fcd7eada3d6293cf2a9390516c7c7f656357704a. 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/ZA56E2415845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427ae41e832dfac5a150f16eae632b88e9a5fef827d078e8e15dcffe32e2b046. 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/ZA56E2415846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357497ecd4883380062e9eea526e1ab680948ccea4a9fc4dddd6d9d14b598bcb. 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/ZA56E2415847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a6470aa9dd1c45bfaf2e729a93678ca524e626cce21145ca43011fbc18098b. 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/ZB1OS2400436.
333 (feat. Papta Mancane, DJ Tira & Major League DJz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d97460ccdcaba8e279c31f2caf75e411da568af6e89303bdbee763e2088c4fc. 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/ZB1OS2400437.
Suka Mane (feat. Shaunmusiq & Ftears & Scotts Maphuma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f2af4139f6f18b696b14c795782685330c7e48835bef96417e01e507c8ba60. 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/ZB1OS2400439.
Ke December (feat. Ego Slimflow, Woza Sjax, Debow, Scotts Maphuma, Xduppy & SjavasDaDeejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e11a7bd68da6cee5e89737fd15e3c9c0cda9f91aec3efe1874a72cb4e80ff62. 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/ZB1OS2400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbea9e412d4fb507adf49d73181a5c44af3bcdb8ab09557ed473c364697f059e. 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/ZB1OS2400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b76a95de7a7964c75ee30e390990c92f27e3a938589668a464a82ccdeddd3d. 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/ZB1OS2400442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0698ce67c9bebd19111530e9966211a874a8e4eeb5ed7d9757ea925579a784fb. 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/ZB1OS2400443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d15acc02c3837c2f9eaf4fa6a1208c030c9d2e1176aa74374f92741bd64decc. 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/ZB1OS2400444.
Kumnandi (feat. Bangerboyz, Ama Wrong Turn, Inter B & Draad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7697c76b291acd5215b4b79b230a90044c3a51ac82e099c45d837d7553cd66. 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/ZB1OS2400447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd59527679ce89fed4ff05a655bda08b1f81fe4ed9f572059bdcb363c8ebfd9. 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/ZAVDU2400013.
The Gospel According To Artwork Sounds Chapter III
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81142126696ee07f92f537e9c874f33abf073859f82e35244448f680ab2a5682. 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/ZA56E2415952.
Transparent (feat. Nia Pearl & King Deetoy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31874364b5639e6010517138d724cc8f3a0fe8941328b0db41fcd34c5b36966a. 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/ZAC012000260.