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 0x166748c9ef8edbaf0e52e9f59229f8dc429e21d747c59a3bde05c22cc139659e. 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/d5ac3266-7711-4b75-9ee1-4cb0b61f9b22.json and https://artists.proofprofile.net/proofs/artist/d5ac3266-7711-4b75-9ee1-4cb0b61f9b22.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 0xf8a6bc98ac344787db9d88c9aefada7d5b6f1b5515e8b46ee0bcef3a72e17aef. 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/QZHNB2430850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81cf3da4cd5cb70404640cc5d5b6cf5a35e75bd337228a241ecc43be3b37863. 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/ZAUM72202514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9145dbcfd847682be7133077c1a3d5f57dfb65acb40a7e18c1f1d55517252f9a. 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/ZAUM72202526.
Aah Aah Man (feat. BoiBizza, Kairo1829, SHELOVESKAMO & Teddy Goodfellas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d9a501104b82c4cb4ec1b80b3ad9a3db4f66e038b3c0bf31cf6d6ca32b8382. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUYG1520909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83155c56f6680925b2b07d693044e33b9e39b271aaadd07c84fec574ffd40020. 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/UK43Q2481504.
Mina Nawe (feat. S.O.N., BoiBizza & Mpho Sebina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dc2402898d0ac4a1239463797a5d786e3bdc47b08efda604eb9cc36f816ce6. 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/ZAA012200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546280bd9f75299db12f39497d59d35dc28aed083905c97fd681aed0a00bf46e. 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/ZAA012200292.
My Lavo (feat. S.O.N., Raspy, Zadok, Nvcho & BoiBizza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359098980fcf3a44858358c85f255b9e16d11d6ea92e6fbf852d284c9af03b18. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZAA012200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bbfd87209f35a1a893b3474d8bc89bd166592d53039a5475255056bae461ce. 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/ZAA012200298.
Ezay’Zolo (feat. Djy Ma’Ten, Welz & 10x Guluva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f415b32c7b91fc9fefb0a40440b8f4f4d054bb18cd007890c9c3d8f4d08b9ec. 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/GBGLW2300815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b50105011f3dd13b0b83c4a10008f40407d9a7ae8e3fb1afb6f47eede09ea56. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ZBO732200037.
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 0x362b93755dd1999dfc5bff5e73c98c06284407046e1f5cc04be098d4445b6e2e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ZAC012301346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8be23aab134610bdac6ecf58232bc67ca7758c1c9f366fb9baccf2c3b70cc10. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBGLW2300816.