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 0xec7214894331d6e060c4a927d41bcdfa92fb2b36f2c0b047a4a730d747aec97b. 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/909234ad-53e9-477b-b2a0-bc35ff4b6915.json and https://artists.proofprofile.net/proofs/artist/909234ad-53e9-477b-b2a0-bc35ff4b6915.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 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 0x4ce7e545bd7d8b1e5d742151852b49e857265fa053b603e3c4aeb70198b26424. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMFMF1450395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383f4df3d32cf97ad220910239fac4e3412dca7eb346d7dd97ed0957dd831ecf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMFMF1450397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeec05e48904642d320edf6480f02e4ac0e8279639da1742bc89de129df2c3d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QMFMF1450401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfe97435052f12d261c1ba9affc1d67ef18bf0d21aa8e7da14ef277d6840035. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FRX452024550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432c926d3d6d86c58c85746225fa7ae965d2660836557146c2e8a00295bc43ce. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/USCN92500461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b459676e1cb1c6901d31123464a17544212e957c7adc0bf108e2c5fb77614a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JMC711110770.
The Biggest Reggae One-Drop Anthems 2007
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea2a240ca3203ef5a1e0d46309645d5413f115814c113adc0ad99a38e1821c6. 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/GBBZV0752645.
Jet Star Presents, Reality Calling Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7502c7a51cf1909382af66efbd14fca5424693d970978a52d024c8715802a5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBCMZ0374167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec141539aa7d97514b6a3d5a9a00b007e19daae259196005858186f0b809ad89. 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/USVPR0107284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0a5d7a5f6350d44a629834c2cc0b75e18f05e46da5d37fa17e1f3f190c1477. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM6MZ1720776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc84b9709d6d123a1e5bf4ba8c096cf8c99338795c7d168b1f8e985a6e2095c. 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/USA371186064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4fcf8e6d81faf843b47351b94518dba8e1ee29e551cff0bcd6b7d16ab3e144. 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/USA371186075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ecef8c700ac14e8297fdb7b0aab5cf875afec27c83898ce693bb2691801257. 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/DEW930700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b6f9f6b835b503c5954fdf085311753a64304184c2a8d0d473263084b30c29. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USA2P1528412.
The Time Is Now (feat. Jah Mali) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e73db20a8923f29624f2516a7408c6da287e96b7cbd55db06291d45902d55c. 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/JMA271300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a875f000c973505dfdd4ad8b582c443cddfbae5d16aa9092e436815fad82f08. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USA371517425.