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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cfc3d84e7b7aacc81b578f2bef6586896a0a87a1bc0c6256d66020204a5d2cd. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b98dcdf1-2efb-4322-afab-a559ecfe1888.json and https://artists.proofprofile.net/proofs/artist/b98dcdf1-2efb-4322-afab-a559ecfe1888.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Awesome Clarinet Solo - Ambiance for After Dinner Coffee
Vivacious Quintet Jazz - Bgm for After Dinner Coffee
Quintet Jazz - Background Music for Classic Meals
Trumpet and Alto Saxophone (Music for Self Care Rtiuals)
Music for Busy Morning - Amazing Trumpet, Alto Sax and Tenor Sax
Music for Spring Positivity - Trumpet, Alto Sax and Tenor Sax
Music for Romantic Spring Vibes (Trumpet, Alto Sax and Tenor Sax)
Music for Moments of Winter - Jazz Organ and Guitar
Astounding Background for Lazy Winter Moments
Jazz Organ and Guitar Solo - Music for Lazy Chairs
Acoustic and Electric Piano Jazz Duo - Bgm for Soft Minutes
Bossa Guitar Trio - Background for Moments of Rhythm
Jazz Organ and Bossa Guitar Trio - Music for Beach Blues
Distinguished Bossa Guitar Trio - Ambiance for Moments of Rhythm
Jazz Organ and Bossa Guitar Trio (Music for Fun Rhythm)
Chilled Latin Trumpet - Background for De-Stressed Anthems
執筆のためのトレンディなジャズ
ホテル用のラグジュアリー・ジャズ・トラック
山好きのためのスペシャル・チューン
Calm Instrumental Baby Music for Relaxation