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 0x18c02e4089c5f81aabd649d564707f08fd0a071375236ec2d1a6cd37d6d62eca. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6485ebc-fca2-45ca-af0e-590571f38d54.json and https://artists.proofprofile.net/proofs/artist/d6485ebc-fca2-45ca-af0e-590571f38d54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cozy Jazz Music - Relaxing Jazz Piano Music - Background Jazz Music
Jazz Music - Smooth Jazz Saxophone - Relaxing Background Music
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 0xc055a4de5d60614fc8a95479a7a4013bfe10194f3dbc88f67b3b9adab2c6ab7c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR96X2129827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d629bcfe87468cf97b12b2a36f0bf7b30e8bf2926534e8bd16faafdb242b17b. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:59:16Z), 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/FRX202136502.
Coffee Shop Music - Relax Jazz Cafe Piano Instrumental Background to Study, Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbc5b3e6dc71f4107c29e40b791c7b5fddfb5cf1da8dffe97ffb8f8190f92d7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRX202136510.
JAZZ MUSIC - LOUNGE MUSIC - CAFE MUSIC FOR RELAX, STUDY, WORK
Relaxing Sleep Music Deep Sleeping Music, Relaxing Music Meditation Music
Relaxing Piano Music: Sleep Music, Meditation Music, Soothing Music, Calming Music
Deep Sleep Piano Collection, Sleep Meditation, Calm Music, Relaxing Music
Beautiful Relaxing Music: Calm Piano Music, Meditation Music, Relaxing Sleep Music
Beautiful Relaxing Music for Stress Relief - Peaceful Piano Music, Sleep Music
Coffee Shop Music with Bossa Nova for Office, Study, Work, Wake up
STUDIO GHIBLI JAZZ - Relaxing Jazz & Bossa Nova Music Cover - Cafe Music For Study & Work
Studio GHIBLI Jazz & Bossa Nova Lounge - Instrumental Cafe Music
Most Famous Pieces of Classical Music (Jazz Classical)
The Best of Classical Music / Mozart, Beethoven, Bach, Chopin, Vivaldi / Most Famous Classic Pieces (Jazz Version)
Calm Piano Collection For Soothing And Relaxing, Vol. 04 (Piano)
Calm Piano Collection For Soothing And Relaxing, Vol. 03 (Piano)
Calm Piano Collection For Soothing And Relaxing, Vol. 02 (Piano)