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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f01851d6563c0dbd5cc3e0b95473ad9174ece42910f67ae82e6129c2d9a277. 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/9d1611b8-ad1d-4d92-8578-f482397bef21.json and https://artists.proofprofile.net/proofs/artist/9d1611b8-ad1d-4d92-8578-f482397bef21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
잠들기 전에 듣는 숙면 자장가 클래식 피아노 연주곡 (자장가, 숙면, 태교, 명상, 어린이집, 병원, 불면증, 요가음악)
잠들기 전에 듣는 조용한 자장가 클래식 피아노 연주곡 (자장가, 숙면, 태교, 명상, 어린이집, 병원, 불면증, 요가음악)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1206fc7a0f0668f50164a56ef93dc53fde3b1329e4869dfdc466acd7b73db8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:29:29Z), 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/KSA002201212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7daedb68c52024a9641ad5fd76356714f282902bc11173e2b8c5a4ba342358. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KSA002201217.
잠들기전에 듣는 자장가 클래식 피아노 연주곡 (숙면,태교,명상,어린이집,병원,불면증,요가음악)
잠들기전에 듣는 잔잔한 클래식 피아노 연주곡 (자장가,숙면,태교,명상,어린이집,병원,불면증,요가음악)
잠들기전에 듣는 편안하고 감성적인 피아노 연주곡 (자장가,숙면,태교,어린이집,병원,불면증,명상,집중)
잠들기전에 듣는 잔잔하고 감성적인 피아노 연주곡 (자장가,숙면,태교,어린이집,병원,불면증,명상,집중)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf37bfaa2423c6bb60e8ce8d0c92713ba3f85d23a654b9c69836a8a9ab55562. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KSA002201088.
잠들기전에 듣는 어른과 아이 모두를 위한 피아노 연주 모음집 (자장가,숙면,태교,어린이집,병원,불면증,연주곡)
잠들기전에 듣는 어른과 아이 모두를 위한 피아노 연주곡(자장가,숙면,태교,어린이집,병원,불면증,연주곡)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef53cf8134475c076af00a59c3b1d20d0df731b4d0cb00480047efdadaf1023. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KSA012147994.