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 0xaeb797e295c732be176fd69ac9eb8705cbb6ac9236204b75f7b2d944bfb6d064. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bca61032-c6a4-4148-8915-01b0b5c5f726.json and https://artists.proofprofile.net/proofs/artist/bca61032-c6a4-4148-8915-01b0b5c5f726.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classical Music for Focus: 14 Calm and Relaxing Classical Pieces for Concentration and Focus
Good Studying Playlist: Calming Classical Music for Study and Focus
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 0xc17c7b8d550ed677be950f49bfa9d6e7633869ed6376b0e2a05920045d4bf9b5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBMNA1781386.
Classical Music Playlist Piano: 14 Beautiful and Relaxing Piano Pieces
Playlist of Classical Music for Studying
Chilled and Relaxing Christmas Music Playlist
Game of Thrones Theme (Arr. for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3de995b79453300f2e0b1c16517375539e913f1ce8afa5e9020e3031534325e. 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/GBMNA1901615.