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 0x523b8b183363e9f69d7c3c1f82d0dca1ab46420aab193f1e3b811344c1a87b9c. 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/4d0987f2-3cce-48f2-8dc1-15a28be52ffc.json and https://artists.proofprofile.net/proofs/artist/4d0987f2-3cce-48f2-8dc1-15a28be52ffc.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 0xd17ffbe721d17228a48bd72078e5c32fc8c7e1950686ba28f74ed608cb41adf9. 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/DE1AO2210053.
Didn't Choose You (feat. April Bender & KVR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d4715458e49dee53f636fb98697a2374b32ae99a9b68527ca208aca653608. 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/DK4YA2003601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24ccaba2aef71baf0bc3cb533c850e9cd0b3afe785d0ece291f4db81682ec4e. 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/DK4YA1919101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf510970b7fa08acd8dcde9b3768cb4080ab5f4ff373f0751b67b41763135e3. 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/DK4YA1809501.
Love With The Lights On (feat. Robbie Jay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a4b1d64e795e49c287983594a45650e26b999dd49a414296624c2b1f97df59. 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/DK4YA1804601.
Never Gonna Be (feat. Kaíva) [Anton Powers Remix]
Never Gonna Be (feat. Kaíva) [YFS x WHOELSEBUTJUELZ Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c6008f58559f82268421fd134382e06d31f649015e453eb137e16d6803ec8c. 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/DK4YA1700901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa538e43a4d63ce0ae9e95f45c79a267468715e9e43398801201b989f36a7b676. 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/NOAJR1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdc3424afeb284207ac80cb5863b5ea840b242230aaf2c50bfc80f24fadc9cf. 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/USUM71701244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000093549d46db52aab08f0e26275c4eaddd3c2258c0816acef7a5e532974d5b. 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/GBARL1701803.
Thinking About It (Let It Go) - KVR Remix
Thinking About It (Let It Go) [KVR Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40e0a424f6bba366eff58e97dc045b709049d2ac9a1a38fa30dad08446d60d1. 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/DK4YA1601901.