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 0xa14009f7d2aeea0aedb254b0c6695127c54b937782195bba53a5fe2d14660c9a. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43e28bf8-e445-4a6f-9a49-3b74ee4bb09e.json and https://artists.proofprofile.net/proofs/artist/43e28bf8-e445-4a6f-9a49-3b74ee4bb09e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nothing But... Tech House Selections, Vol. 26
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 0x4d5f2cee5851cbf8d1535e92d3ec511bf149a1e5fa13f8daca1ec4c58e33f890. 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/GBKQU2468103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d2134f60fd9392efe378c53f162bfe78c88a44a52873262b61b46033b52504. 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/US83Z2458010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55099bae440e3c034ce00046484f48f34406c7c03804ce68a08245b0df9459e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/IT8VL2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc8ea97938962d1e591b3dca2728864febc14814857d835c0f0c5b23652b09f. 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/GBKQU2389089.
Strictly House Meets Downtown Beats, Vol.01
House Nation Clubbing: Summer 2024 Edition
Nothing But... Pure House Music, Vol. 27
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b320e143ce0f9ff5a59bf26968af760266aa626007154d28e5b35fc9a5ade57. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:59:16Z), 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/ES27S2400053.