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 0xb75c71a30f7dc7b1beaa8d42f87e6b0e97e18f8e63335e5d836fe258843eb19e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8ae1869-0383-4f71-b50c-04f0e7fe6d21.json and https://artists.proofprofile.net/proofs/artist/a8ae1869-0383-4f71-b50c-04f0e7fe6d21.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 0x334f2ca6ad384b6876a60ae73456721baa72f101e4cca56ffa6295dfdcd34152. 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/QZS7J2461852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8f30f719e5a1f034caa8017c6a08f5e847a2c1a549398bc9d48b3528e6baa9. 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/QZNJW2141422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37376ec41c065e2ef6076768f641a6250dc3edb90b9b8b3485825b7bde3e975. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ZA56E1400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a35f1dc93d8fe4eacacc9e68630a81fd3f8b911c7518b5e461b458b1a1495cc. 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/ZA56E1400612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83742ebe51f6b273ae7c2626b12388dd8e388015ffa70dca83d8cbe4422379ea. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ZA56E1400604.
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 0xee61ee8c42e1e8fadaacb2ec9d597534ce39205fe8cced79ff756b6103a6c702. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ZA56E1400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc75ef019b3e65b6425fa6d1990b3a6ecc13a5dfc40dd80d4abff4fa3d25314. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/ZA56E1400606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc68eeebb9bf582bd608ddcbfb6c63e5513f5e9cdd20ab97b5c8f9804887c7f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ZA56E1400607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227577322404ce9439994b6e51bcfc6418841a2a14b4e02474a8b9ee09b09689. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ZA56E1400610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac428cf9747e2ca4718d2c7c42fd3c64111caf00a495c822821e248dda73c202. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ZA56E1400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffed6fffa1e1e8497785985b3b865f5744f90dc9efa7bc12ce548dfbcfae333. 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/ZA56E1300911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb32db5cdac4d2565e28dbd362a8953815f4b637e41df05077035067439c5322. 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/ZA56E1300077.
Omo Naija (Remix) (ft. Pryse, Efa, Tesh Carter, Shaydee, Seriki, Flaimz & Peter Clark)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5dd21a453712b3d3c87f7542f54ec421c77ce098d17eb562231dbb7bde8ab1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ZA56E1300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6cd9239ba536026387cb3fec43837ede973bc5e444926e98926ca6d07b1508. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZA56E1300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4a5d83c895a15e24cc12cbe014ec200e0698c182f4e3ba874eca5b218e34cf. 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/ZA56E1300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa1320122496e4b662e7d169146b5a1034550be69d2757c92d60b57c819fc08. 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/GBUS91200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c516e69fbf0c9a1e407890abcf6383d3855346bb035a4fe6dd0edfe4f6803d6. 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/USA2P2435327.