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 0x5cf1501cbe063f4a8dde9d4a8e3f2670d9c062fdbe2a4e95280d65f610059e88. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8986d194-19d6-4020-997f-b20adf78f95d.json and https://artists.proofprofile.net/proofs/artist/8986d194-19d6-4020-997f-b20adf78f95d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Distinguished Ambiance for Dinner with Co Workers
Debonair Background for Atmospheric Power
Entertaining Ambiance for Relaxing Feelings
Spirited Bossa Guitars - Bgm for Private Access
Bossa Guitars - Background Music for Working Stress
リモートワークのためのジャズコレクション
お仕事の日に気分のよくなる音楽