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 0xecb1ee4964ab93a7d58b6da9a405c1759006f9df152382d89f76817c255b2313. 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/696eba34-6e7b-4dee-a6b4-bf3c74366297.json and https://artists.proofprofile.net/proofs/artist/696eba34-6e7b-4dee-a6b4-bf3c74366297.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 0x96d70903c2b608d5b6a2d39df38eb60e949af054ad499d5b3de0a61ef6f438f6. 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/ZBOOX2300001.
Bagejile (feat. Tumelo.za, DJ Raybel & Tyrone Dee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44059eb068bae7fc70d3bb9d87b7ce46809a04797e77c54bc98bff01b60d8246. 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/ZB1OS2300245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e38e3c11999c15c5e3772d349ed4a64f0cb14850f5754e4cd058243d9331024. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ZBZJO2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45d096b143907a57a66ba204acd38b6e39f0394562a0fd5fc89858a527ff09a. 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/DGA052410252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672fd3f38ea005a16d6b5e428c7c6e2b63c06859d4ce125fe722436a38d27ae4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA052410253.
La Way (feat. Khalil Harrison, Tumelo ZA & Tyler ICU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e515952db75013aed2d9d9eb9096771ae52e061e3818512f0848912ceb93b0. 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/ZB6VL2400009.
Imhlolo (feat. Ceeka RSA, Leemckrazy & Khalil Harrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527680505cf8694d14842f8b9016a4bf727664305b863b7bd2d646d031ea857a. 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/ZBOOX2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9238ad24bfb44412d88e9beb77848243ff91a3c1b420db043affebac8813df. 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/ZBOOX2300008.
Sekele (feat. Exit, Khalil Harrison & Tyler ICU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5abeecfd6d002ca7c20dcc2855bad5e7f6d79df3243e3320b7a34694c8ab48. 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/ZBOOX2300009.
Mshini (feat. Khalil Harrison & Tumelo ZA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8a2ee940729b96aea3d3c696f50ebceecbcb1ca84fa3bf4096d25cb490575d. 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/ZA56E2416393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6a3bd85d235441c4aa83c5e133c62d6663d0b72e399569124ae782a007e15e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAUM72400564.
Lento eSiyizele (feat. DJ Maphorisa, Freddy K & Khalil Harrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ed39f1bf5b7d215046853014d133779d006a83dfa978cba60b4f9d9b5d77b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ZB1OS2200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24a3c88a6de42a59f382f8be072577495f665326cd5cc247a8d5b1b79a1047f. 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/USA2P2423828.