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 0x1d30e134cd98ea62bbbcd7ced090dacc38a328b4cf348ae4e43f2b0ec7503bfd. 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/40cbc4c3-82b7-47fb-9ef2-8f2e68158c3e.json and https://artists.proofprofile.net/proofs/artist/40cbc4c3-82b7-47fb-9ef2-8f2e68158c3e.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 0xab08524bd554c356aea7b56fe6f4a561a1ccbd039c551114ba6024b821d44c1f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USQY51062336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eb96ed137aba01142f23ef0ab924bfe2140206ecfcda5031c4e1a3868e2f74. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:59:27Z), 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/EGA130003350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc50944d47cb9ce3c8dcd515ff1172cf751c1a228949024fadd7b7a76ab34412. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/EGA130003355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf23ba13ecf17ce5ef88bb1a2715f21dd194f73373b6bb5018b5fc5a1df96275. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:38:45Z), 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/EGA130003367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde7a4e26ac3b710c4deecaa2d74f5eddd85c51d5bd2a6bd3a225ece6fe87827. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/EGA130003369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36190a75fb0a9c1de66f1c2635ad3884338968425fb52886ff3f13e84236f6f0. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/EGA130003376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dcf22e06df7a39b9384fe7bf813f8bffbc3cc571d8fb51a48c5e9bb8d59eb5. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/JMA271500723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abd7d476cd02ef336c3f38dbbca8dc32a9f7833711ebb8c71244d0a3a5d7fcd. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/JMA271500725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b50f94e1dcc580fe026a5046a250dc39ef55ebde36c8fc6d20dd27d48ce82ca. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/JMA271500728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b8344d9797b54fb1882e76a7026543b1240ed31900f3dbcdc8e7cfb6e4166b. 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/JMA271500731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bcec2c9f6d1bf20ca42e1540e5055dbc34176c60574319d9666d8965852fbc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/JMA271500734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13981a490f772b4bc7a80e62f3d8c60e616069daefe6144ad96e85f40aac26dc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA2P1837390.
Monday to Sunday (feat. Stonebwoy) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c4abf86abfe25a45dfbdce90f6d3d7c15ce02d709c0a8a73416a445ad80301. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/JMA271905039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4674c186595dfda8f1d20d3a8d88a1b5b7d02a20d71ddd8e6b804d2b5f05148. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/US7VG2102824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644e521163b83db4e577e84d7ba74f40ab6e2cbda20d5f0cb26d063c63338aa7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMDA62271882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644e521163b83db4e577e84d7ba74f40ab6e2cbda20d5f0cb26d063c63338aa7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA62271882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85217c99407d16a0eab30b8194e54efaf2d41cc1e138921593c736db88fbee3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPYN2466638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc0e9211f1cc1c552f5ddfd6d33dc2a9b52f52ba4ff160c7100a80f6f6dc6bb. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QMAXQ2309071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916b54073d35693b404689583e051627c2ba7aad2e64171108ec3de39984c040. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZTPX2483447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19dbacdd0da12cd934c1f7a9dc648cc4dc145dea6ab17a24cd64b8c6a878d8a. 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/JMI031500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407c322f732c8b4e1590cf7c57d2effc3a9b4c1bc409bf984d98c8d7a0087450. 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/JMB111400272.
The Biggest Reggae One-Drop Anthems 2006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3eed40a2e4fea4bf0bd89a553978abbc1c496886ac9523e1d24055545b2ce5. 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/GBBZV0652283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824d097ffca0cb2df7c027d43edbb3c1637b4358fd0c0b07f597d96b435169c7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P1117691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfaae89f56b7d0df324f4cddf424194646e62ba5ca08212a00ac4cc4d2eefcc. 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/USVPR2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43252d1ea95773692dd53d0de9a8885b91fb5d32df96042544709aa8298cf6fe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCADM1817340.