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 0x44867a7a8cf116ae55f995389a42f6bef7fb53dfab645cae31dcd57e738055d6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba1dec7e-04ca-4382-88ca-e8222baccddc.json and https://artists.proofprofile.net/proofs/artist/ba1dec7e-04ca-4382-88ca-e8222baccddc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
(Trumpet and Soprano Sax Solos) Music for Work from Home
自宅でくつろぐリラックスチューン
ひとりで過ごす静かな午後とジャズ
Jazz on the Waves: Relaxing Ocean Rhythms
Coastal Jazz Vibes: Seaside Instrumentals
ワンダーラスト・ワールド・チューン
Jazz Hourglass: Tunes to Track Time and Productivity
Conference Room Jazz: Meetings with Melodic Vibes
Understated Quartet Jazz - Background for A New Season