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 0x0cbe39f57917d8928544543588f9e0e0e4163de681f1f5c47c77ad55ebd40324. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6015d2ea-871a-4b93-b791-d56f11def258.json and https://artists.proofprofile.net/proofs/artist/6015d2ea-871a-4b93-b791-d56f11def258.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 0xb2fa07d9f2f5a2745483551bb8971d919ebf13f7efc49ea65e434430b47a832e. 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/ITI029400016.
Café Noir Musique Pour Bistrots - Acid Jazz, Vol. 1
The Ghetto (featuring CeCe Rogers and Fred Wesley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad20828cc72961ad870efa1807e8ebd924196c1ba61c61ea9668320ca282af0b. 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/ITI029400013.
Home Is Were the Hatred Is - Progetto Tribale Soul Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e62159f2f8d00eb2bd447f5ec912a8c67ed068e40829d85fbe9f2df55afcfe. 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/ITI029800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd29beb949231b0ac0cebd1f96400d6960b0e35ff2912c6dd07fe052e6f6244e. 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/ITI029300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9399fa7ea95957ef8929fb96ff0f0ab3f1ce374ec087d1b9ad4371715a038007. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITI029800119.
Home Is Were the Hatred Is (feat. Vick Andersen) - Progetto Tribale Soul Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e62159f2f8d00eb2bd447f5ec912a8c67ed068e40829d85fbe9f2df55afcfe. 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/ITI029800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3936ea8d8a47ba4e8a5c89d20ec94e0e374958c9593ef1478ab5080f1f223aac. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/ITI029800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9fc099265e4ed4136e7af8b5ea54c3e7e0aa54ebf70830ee08c8c491066952. 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/ITI020300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0f955c899615ab46db2a3974841892f1500c1db87758d943e5ddf480eb2d3a. 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/ITI029600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfffd4c2c5dc9577fd3d6ea17c776f884790c6a1e40cd311a1e15bcb8226f586. 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/ITI029800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0790754f97c28e7bf9e624c6712030f18f04b442abba811f0dc8891578c8789. 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/ITI029900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36351103c62e24a1fe3122f6add02d286206ee987a092a864c73e32d50e2b8a. Chain 2 (Bitcoin): anchored in block 957240 (2026-07-09T00:47:38Z), 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/GX38U2235340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d238fd208dbb41d2fcb4997c57fb73aa839ef861cc074d8545658971fc47cb6. 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/GX38U2235341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x226589fc6ac3c689270e21fff1fab080f45ac77c7ce0c1177b29ca93ffd65ad8. 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/GX38U2235343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a98d1e258281f84d836a7a0cc0e708eff506a9a3ff24ea38f96843c8017b00. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GX38U2235345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dde4e877d8ba2b6462a3830f21518258ba1fe9679d5011e161aadfa6fe3c73. 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/GX38U2235348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3990980eff367396a0d2cfc2483260cc5a17f6455dedec01f373b742f033e1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ITI029600031.
Irma Live in Montreux (Live in Montreaux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548cd3999f0e6ec89782056f7b0fbdad84fbb4587944ce7686cd4ea3c0cc4c54. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ITI029700203.
Deep House Anthems 90 (Old School House & Progressive: The Underground Sound of Irma)