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 0x978d1d9d2324785f3a5d2d99b56cccfe2869a6d80e42655949e3c390095303e4. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c0a1d3a-8d0f-4499-bb15-92d49ae4b202.json and https://artists.proofprofile.net/proofs/artist/0c0a1d3a-8d0f-4499-bb15-92d49ae4b202.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Magnificent Quintet Jazz - Bgm for After Dinner Coffee
Clarinet Solo - Ambiance for Classic Meals
Trumpet Solo - Ambiance for Cafe Working
Trumpet Solo - Background for Deep Focusing
Paradise Like Background for Sunny Classics
Quartet Jazz - Music for Virtual Meanings
Friendly Background Music for Jazzy Cafes
Wondrous Tenor Sax Jazz - Background for Luxurious Trips
Latin Piano Music - Music for Acoustic Together
Luxurious Ambiance for Taking Time Off September
Wondrous Background Music for Entertaining Loads
Vibrant Jazz Trio - Background for Roaring Lounge
Music for Soul Sounds (Bossa Guitar Trio with Jazz Organ)
Backdrop for Lush Tunes - Spacious Bossa Guitar Trio with Jazz Organ
Remarkable Bossa Guitar Trio - Ambiance for Cooling Down
わんこのワグタスティック・チューン
おしごとのための日曜カフェ・トラック
リラックスしたしっぽのためのチューン
カーム・ケイナイン・クルーナー