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 0xb4fd11406e1b580fa7bcc63be87666ae2267d109cfaf7d796d86353509769dbe. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a285704a-7cc8-4917-a210-e074cb085160.json and https://artists.proofprofile.net/proofs/artist/a285704a-7cc8-4917-a210-e074cb085160.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Playful Ambiance for Working at the Office
Refined Jazz Trio - Background for Recharging Moods
Stellar Jazz - Bgm for Creative Feelings
Simplistic Trio Jazz - Bgm for Chill Afternoons
Music for Coffee and Lunch - Trumpet and Alto Sax
Music for Hotel Lunches (Trumpet and Alto Sax)
Acoustic Smooth Jazz Guitar - Ambiance for Calming Taste
Acoustic Smooth Jazz Guitar - Ambiance for Gold Collection
(Piano Bossanova Duo) Music for Chill Out Reflections
Classic Music for Amusing Earth - Piano Bossa Nova Duo
Music for Comforting Reflections - Piano Bossa Nova Duo
この特別な夏のためのゆったりとした曲
ハーモニアス・ビート・オブ・ウェルネス