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 0x2702ecb66f7e4695d171c98739792e4d8042c2ba14ccb06a8df55482cc490f6c. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2d99242-4a43-4850-8688-c83b7e7f6810.json and https://artists.proofprofile.net/proofs/artist/e2d99242-4a43-4850-8688-c83b7e7f6810.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Backdrop for Study Sessions - Double Bass
Swanky Jazz Piano - Ambiance for Work from Home
(Trombone Solo) Music for Ordering Takeout
Astonishing Quintet Jazz - Bgm for Ordering Takeout
Spectacular Backdrop for Familly Dinner Parties
Bossa Saxophone - Background for Unwinding
Trio Jazz - Background Music for Hotel Bars
Sultry Music for Recharging Moods - Trumpet and Alto Sax
Simplistic Background Music for Sleepy Sundays
Trio Jazz - Background Music for Luxury Dining
(Trumpet and Alto Saxophone) Music for Luxury Dining
Cool Music for Gold Collection - Harmonica Solo
Distinguished Background for Calming Taste
Acoustic Smooth Jazz Guitar - Ambiance for Calming Taste
Music for Cinematic Senses (Latin Music)
Outstanding Acoustic and Electric Piano Jazz Duo - Bgm for Mellowing Mondays
Luxurious Music for Timeless Tuesday - Piano Duo
Jazz Piano Duo - Background for Peaceful Thursday
Music for Every Space - Playful Acoustic and Electric Piano Duo
Backdrop for Every Space - Acoustic and Electric Piano Duo
Jazzin' All Night: Piano for Pet Parents
Peaceful Jazz Piano: Evening Relaxation Music