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 0xea29599346975abe30bf3b23d318fc408ce36b27cca65370908c4a15d7c5c71b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b53ab99-d591-440e-80c8-e12a430ad7bf.json and https://artists.proofprofile.net/proofs/artist/9b53ab99-d591-440e-80c8-e12a430ad7bf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cafe Guitar for Adults Men's Vocal Pops Version
Woman meets Guitar A side アコースティックギターで聴くPOPS名曲集
Woman Meets Guitar Side A: Famous Pops Playedby Acoustic Guitar
Cafeでゆっくり流れる音楽 OLD FASHIONED ACOUSTIC MUSIC
Old Fashioned Acoustic Adult Oriented Rock
Cafeでゆっくり流れる音楽 懐かしいあの頃の歌
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 0x7de90030c8e4acb3197d5d979a6730f1ea254dad65785799f12753909cdacf57. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPR291600287.
休日のアコースティック・カフェ のんびり聴きたい洋楽カバーベスト
Holiday Acoustic Cafe Around 70' 80' Pops Best
Relaxin' Cafe Musics for Adults, That Fit in Night Time.
カフェで聴きたい Jazz Guitar meets classical music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceb187321b972efbd94735dde409b35fe7cd68bfa8f48b4a3efefd067dfa3c2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPR292000225.
Nature Healing Guitar 2nd カフェで静かに聴くギターと自然音
Slow Life Café Ukulele Style (Instrumental)
ウクレレで聴きたい こころの唄 コレクション
Enchanted Paris~A collection of chansons to listen to with an acoustic guitar
魅惑のパリ～アコースティックギターで聴くシャンソンコレクション
Nature Healing Hawaiian Elua ～ハワイのカフェから聴こえる音楽と自然音～
Listen to the World of TANGO with an Acoustic GUITAR