{"copyright_id":"0xf6c81cd0aa156fd7621c8aae6ca5584e3f42e48a9bcbf5d2bfbfcdcde50aaaa8","name":"Bongane Sax","registered_at":"2026-06-12T04:12:46Z","symbol":"NIM0183323","token_address":"0x1fa7a44a0048bdb1a9bc9fff9db941b3bbedb9a1","type":"artist","uuid":"8d45f464-76be-40d6-b139-f36713f0edb1"}
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 0xf6c81cd0aa156fd7621c8aae6ca5584e3f42e48a9bcbf5d2bfbfcdcde50aaaa8. 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/8d45f464-76be-40d6-b139-f36713f0edb1.json and https://artists.proofprofile.net/proofs/artist/8d45f464-76be-40d6-b139-f36713f0edb1.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 0x121f68dba7aded56ef792669e292075aaf8843ff1f405fc5c4f260fd497084bd. 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/ZAC012400224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35aa95d52ed10894b37a5ebf5868d4dfae4381b40f645d39c342aa3724777f2. 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/ZAUM72400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8133c5a180faebcb57f6687e357a6163a3aca87b960dd6e57b2e1cadcfb7ab. 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/ZAUM72400088.
Sophia Town (feat. Optimist Music ZA, Leandra.Vert, Bongane Sax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4a8783db3cf9e4cc65abf08475a426ec6f7c4c4a46488706c1aaa101896429. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZA56E2303057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52fc5963dee0165d3d4cdde152214b6468cdca510a0c3d525e688e157f443c8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:09:29Z), 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/ZA59Y2100003.
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