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 0xce0be9ccfebb0c60b57ff13244cc153b89a252a5980631d739ec967004b48ea9. 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/5b0da03d-86b1-40a4-9b6d-c992c8c9648b.json and https://artists.proofprofile.net/proofs/artist/5b0da03d-86b1-40a4-9b6d-c992c8c9648b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Type Yam (feat. Mpura, Skroef 28, Nkulee501 & Tsiki XII)
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 0xeef6f8440cd5bf0f2989370d8fbc0c84ab0ed59400446f298509cf00251c5ca3. 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/ZAA012200260.
Sabir (feat. Skroef 28, Nkulee501 & Tsiki XII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd722592c4e59e085f78616673afc6904e241f73e15d768dec0106932bb889523. 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/ZAA012200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc275ec9b22afa5fd625bc16a76cd75fdbc227d45c53c43092ccbe8f5188ea3f. 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/ZB88P2100073.
51 Issa Lot (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50726da7a35417dd8529c384d28bd6ca8a0bcc9e7989eed01727e032288266e. 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/ZB88P2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e0b701d4065165e1287ed30adc57d14da8c777a53d9cfb7fbe16ac61f17ca0. 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/ZB88P2100042.
Time To Time (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb23cb7b33ec24a07490ac0d146123f8427d741fda41930c25ca83b770b08046. 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/ZB88P2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf596e93298f00eaf163fd02ff935bcf42f88eed14074ec71bbd6c58a293cb71e. 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/ZB88P2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9d82cfa4b886fa85be355c2ae60ae1d33581e17664dac2215a69d0c442330a. 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/ZB88P2100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f214c7b9cdeeeb70c067d06a64c5278148f6733f6421aaa8c8a8557fe07701. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/ZB88P2100057.
Friday Feeling (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e94f19a9ee4c04db00ee214280e352cc2ec110daab42d4f17dc11e7b28849d9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ZB88P2100041.
Booth Five (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5000b335dfe4a23dc823f8a1972be9b6b4745158b408a9ec1cd71806ba0629b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ZB88P2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1377ebfc4a57448964d7334cbbc4fe253520cb30ddc4a40ab7a149be74f759d. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ZB88P2100050.
Wall Street (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752839818656ff1829e77d7b1eac0bf6bf8df746ba8d55a4c72b6f4f48f79fa8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ZB88P2100076.
Never Mind (feat. Nkulee501 & Skroef 28)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7bf678d2a0f9d2f556c4cf164327f6b618ff4c15d8e9a1bcaf503b532c6446. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/ZB88P2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70473e3de99e6038afbf0a06b7791c95a549d04e8da19d6ec74813effb87d3a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBMA22452558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9746954f9b66cb8625ad61386ef9dac40166432cc1fa9f60b130a18aa54dfc8d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZA0AN2200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d47bbc3663964d31756cdffcf3c17dc0b64898c864d0c8228c8a11bacdda95. 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/ZA0AN2200033.