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 0x7999b7aa08952cfb58401cd0809a98f2ba83c61bd7833b31e49f75d4121036a4. 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/93b2819d-789e-43bb-9215-e0f1baa7f462.json and https://artists.proofprofile.net/proofs/artist/93b2819d-789e-43bb-9215-e0f1baa7f462.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Freedom In An Unfree World (Expanded Edition)
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 0x6e373d32424d6ebcea3981d7d439a47839b89fa99f5ed315eea088dc78114d44. 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/NLP431700287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc89a81cda2d476ab751f09185365c4c46e8ad9496558b0a1bf122a876b5be18. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLP431700290.
I Need You More Right Now (feat. Chicky B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff5172349ed3945bba86af0e5f302e662fcd0ff6f03a1af84cb74f77e656bb5. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:50:55Z), 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/USD6T1100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0e5ae998f90c99a17763c26882e1d329698f8f361cce11a65d3daa262541c4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:26Z), 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/USD6T1100041.
I Still Think of You (feat. Bella Claire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd997309fb387bd63f611b1888a80de6a751d9cd82b467ecbccf38fce7d3145. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:03:18Z), 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/USD6T1500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c122578fc972068a6ca1f0a45cbb62a50947e186865c093548772a194acc2d7. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/USHM92578022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbafccfb5ba50c5814fea9ce238280defe0cd933d35d328b284655ae0a40a21. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CAU118207209.