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 0x8114af8a3307a985909f2c6b0c755838d8cfaf2d1af84cdb97c796ffb40a2dc7. 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/278c8a90-7cb1-4e6c-926e-7b8c5bdc7608.json and https://artists.proofprofile.net/proofs/artist/278c8a90-7cb1-4e6c-926e-7b8c5bdc7608.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 0xbdcfeb30170a03123fe9157edbae71026a12e35d5a45046867ec5a4f426d2c20. 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/QM4TW2362716.
Beauty And A Beat (slowed + reverb) [feat. PHARAØH & EQRIC]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74374cc33351a4a3d941aaaa275a407ebfbd8345203e50ccec488c6ab3b2dc8a. 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/QZS632257958.
Dark Horse (slowed + reverb) [feat. EQRIC, PHARAØH & FJØRA]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a439b0f75fff8dca1782020f8108ab4b6017e5bd30e8aaec8c07522cb8ba224. 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/QZS642267313.
Mood (slowed + reverb) [feat. PHARAØH, EQRIC & EthanUno]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d18a309a0f5d922f6da6f4c6be46c3ee3de9c5e5a9663a0eb35a11b978c88b. 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/QZS632289597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3795237e87eec4363a9712c1be871954001bee837e012d9923c11fcedcf78189. 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/NLT2H2300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452672f6587240db0fc21c13e02c16654894962e93dc28b1562c295a1e2a994f. 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/QM42K2284496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd350fd6cace20bc15953927d0576c2f66b8475784c7126ff681aed481404d010. 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/NLT2H2200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325693351c7c793fa72040b3185099523ce1c0c8bc06a6b7c7fccfb974838b06. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMHK2205766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1fa339a0f4a12f35b3df44d9cf201be41ba6b06e21a992f94226e1924e98ca. 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/QM6MZ2232967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ab110e05f538a62ad76057e57082c10f02cb8f9952c45fea88073aa4c5f6ba. 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/QZS672222016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d0e8f33f4725679bfa519e50e7809a7756ab58d384c58513720389acf74ce3. 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/QZS672214561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0076e207c45241e939f71587611109a7fe545cd267c9535bde8884f7764fc02a. 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/GX4R52141915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ec2307e7e5fc482b3aaa78b4f578c5943adefb2a6abef99f2c77e057754b87. 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/GX38U2228160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0309d79f12b94fdc74daf304ac942ec8b8d4d743bb14060b4f13d1f91ba32414. 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/NLT2H2200888.
The Cure (slowed + reverb) [feat. EQRIC, PHARAØH & Ceara Cavalieri]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06980c236a05aeb276ffd36d60c6885d50b93554066a1f507cd24016eaba29c5. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZS632224730.
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
Ridin' (slowed + reverb) [feat. EQRIC, PHARAØH & Peter Piffen]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0db61e9691e74c8ec633ccae762663940858bb5c3983605a4a41b478b3bd50. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZS662271337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f42da05656d91dbf4c4ddea0f950dc1057535dbe996233dead612047d5080a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZS662249010.