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 0xab6d6c8bfc5fa6a540fab19876fa7cbf8013579d904f837b212c650388e72fe4. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77f7b0c2-49eb-47fc-95f2-c8832e687672.json and https://artists.proofprofile.net/proofs/artist/77f7b0c2-49eb-47fc-95f2-c8832e687672.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
家具な音楽1 -soothing music for the good night's sleep-
楽しく歩こう！ウォーキング・テンポ・ミュージック
家具な音楽３～朝聴きたい癒しのリラクゼーション・ピアノ～
家具な音楽２～夜聴きたい癒しのメディテーション・ピアノ～
ミュージック・ラブレター ～恋するピアノ～
The 睡眠 -Dreaming Wellness- ぐっすり眠りに入れるBGM
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 0x530b018a603958ac08d6f14368ffc8964628a2cd1bc2d226c901489ea0a1612e. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/JPW792106457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda049fd78b158e3f1c9e3bd4ab7c4c284a04e8d39b739a279ae1548b95f390b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPW792132066.