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 0xe5b547cbb90d662ceb5a1aaca5f33e08b364adf055fbfa154edec2e66d13584b. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13636a44-a4c7-45ca-879b-c978369e5d27.json and https://artists.proofprofile.net/proofs/artist/13636a44-a4c7-45ca-879b-c978369e5d27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Remote Work (Electric Piano and Alto Saxophone)
Backdrop for Cleaning - Relaxed Electric Piano and Alto Saxophone
No Drums Jazxz - Background Music for Relaxing
Extraordinary Background Music for Baking
Fabulous Tenor Sax Jazz - Background for Casual Restaurants
Friendly Tenor Sax Jazz - Ambiance for Lunchtime
Music for Cool Cafes - Mind-blowing Trumpet Jazz
Vivacious Background for Friday Night Dinner
Sublime Clarinet Solo - Background for Friday Night Dinner
Tenor Sax and Trumpet Solos - Music for Mental Health Improvement
Cultured Piano Jazz - Ambiance for Piano Bars
Music for Offices - Bossa Nova Vibraphone
Acoustic Smooth Jazz Guitar - Ambiance for Simple Curiosity
Music for Relaxing Experiences (Harmonica Solo)
Into The Lofi-Verse: Relaxing Lofi Music To Chill Out Tonight
(Son Montuno) Music for Lazy Winter Moments
Modern Music for Reclining Afternoons - Latin Music
Jazz Piano Duo - Ambiance for Soft Minutes
Cultivated Jazz Piano Duo - Ambiance for Cool Shadows
Remarkable Jazz Piano Duo - Ambiance for Soft Minutes
Music for Easy Going Days (Bossa Guitar Trio with Jazz Organ)
Looking for the Quiet Raindrops Thoughts
Jazz Organ and Bossa Guitar Trio - Music for Mystical Monday
Bossa Guitar Trio - Ambiance for Moments of Rhythm
Jazz Sounds: Pleasing Jazzy Lounge Music for Cats
Coffee Shop Tones: Smooth Jazz Lounge Melodies for Pets
チル・タイム・ラテ・ミュージック
Jazz Piano Impressions: Urbanity in Sound
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 0x9061627d478d19da427239b283cccf97eebee3b60ee92239b1bd97b04e0fbe76. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:03:33Z), 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/GBPS85483430.