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 0x5a23777042e03d8ff5f7d601da45ca6e0b5fbb19288ca3c37efe43dd89844234. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc0ac20f-1af2-47c8-a4f3-01c811f10aeb.json and https://artists.proofprofile.net/proofs/artist/cc0ac20f-1af2-47c8-a4f3-01c811f10aeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ゆったりとしたリラックスタイムBGM
The Coffee and Espaniol Word - Key Eb Ver.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9e977e353511c5ad730fe9844f2637536d21947addb99e78dd398ae4df13df. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPN292373596.
Moments in a Cafe Brushed by Winter Wind
Cafe Music to Color the New Life of Spring
夜のひとときを華やかに彩るジャズ
深夜のリラックスヒーリングジャズ
Music Background Music to Heal The Night
Melodies of the Night Breeze with Coffee
落ち着いた夜を贅沢に楽しむジャズBGM
ゆっくりとした秋の夜に楽しむジャズ
ゆったりとした秋の夜 〜ジャズを聴きながら
Sound Sleep on Autumn Nights - Blissful Soundtrack