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 0xc978594d60fe6d7146a39902c68ec1c93ff7071ca0849606c29ca584e3525a79. 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/4301f850-c780-4382-a948-41d982ccefd2.json and https://artists.proofprofile.net/proofs/artist/4301f850-c780-4382-a948-41d982ccefd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sonic Dreamscapes: A Sleep-Inducing Audio Voyage
Sounds From an Open Window (Soundscapes Vol.1)
Soundscapes Vol.3: Wind Chimes Ambient Sounds
Wind Chimes Ambient Sounds (Soundscapes Vol.3)
A House by the River (Soundscapes Vol.4)
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 0xa4a8b72cd41c95c19143ad6681fce25e0c71a0f81ebc56ca4e66c719ce42e36b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBSMU0129759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647123abd0190c09014fbfccdcbf93509aaa898c2ed82ef4156bd6bf14c2182a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBSMU0129732.
A Night Shift Lullaby (Soundscapes Vol.15)
Something Out There (Soundscapes Vol.16)