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 0x8b49e846b986bb2b208d0c09442a31dc150299c3ec48a4e6817a10ec0de1530b. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444.json and https://artists.proofprofile.net/proofs/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
잔잔한 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)
Chopin : 24 Preludes No.3 In G Major Op.28 (쇼팽 : 24개의 전주곡 3번 사장조 작품번호 28)
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 0x70c4e6fe7fcff776aa568855ff2c28c67b809564ee5eb8de39d6d1a7c0971bb9. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:09:41Z), 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/KSA002200616.
아름다운 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)
감성적인 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)