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 0xa7537336e66a1f1b74e6ee43f31896a6b5ef9d906aa6cfbc4f1c5262eef8573b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2adcbcd-bbf8-4f9e-b8f0-a3e5809ae32b.json and https://artists.proofprofile.net/proofs/artist/a2adcbcd-bbf8-4f9e-b8f0-a3e5809ae32b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Decadent Grey - Conrad Van Orton Silent Dub
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 0xbf0f43d261d9396a579e0b9b00b289689783c5e643fbfd4a62ac5953b1e5c572. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEH741300315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b562f33d75f8647f0eaa4af84fb77721afd909c16ad74364d1ca165c19af35a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:17Z), 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/NLCK41402754.
Show Me That Light EP [inc. Cleric Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4708c45b7f45ee952b948af495d16fca3533416dc047029ed6ec766f679dce6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLCK41051847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fd59de6facd50bc954a2b3caf1256ba85235b7c5c4357c5049138c34da8bdb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ1735133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb403c1980541c033479007d6a4b9f246989d631019dba0091d7285948437670e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41042998.