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 0xc723cda4af3509942b1614a4df2b92320f2fa74af15e1ab7cab20c0cd93a2e2a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4a396de-f9ce-48aa-80b6-ea5d3ce836b6.json and https://artists.proofprofile.net/proofs/artist/c4a396de-f9ce-48aa-80b6-ea5d3ce836b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ペットの為のリラックス音楽: 犬猫のストレス解消ヒーリング
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 0x48565e53386ca96388ac7a4d0aa59afa0cd06995cc61c1cc35367545faf9ea8a. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ITO102031050.
犬の熟睡音楽: 睡眠導入ハープ・犬の安らぎ周波数インストゥルメント
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04843ca5cb4b01ec8fbf5aedcfd8a16433c2a026398abb91e1db2c78050b060a. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:04:31Z), 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/ITO102036421.
犬が落ち着くヒーリング音楽: 愛犬が快適に眠れる環境を作る, 不安解消
室内ペットのリラックス音楽: 落ち着く自然音, 動物のストレス解消
犬の癒し音楽：まったりストレス緩和自然サウンド・吠えない雨音水音ヒーリングミュージック