1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x169dd921c2ae593b2c62f6d8759e5762477012e53424a7d09b0d953e736312b5. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f22d35ff-d19b-4d0a-b105-802f5ba60a4a.json and https://artists.proofprofile.net/proofs/artist/f22d35ff-d19b-4d0a-b105-802f5ba60a4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 → block OTSBitcoinBlock must exist at that height 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 0x869c77da4adaffa1978a8865a83ffec9082b4980c9d3be363a2a8e1e28e8e459. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRRAR1907290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde94f39d85c3adbd39f82707a35536dc73626f3bb7ffd125e4d6c03363c209d7. 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/KRRAR1907294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d1fc3048b052ef38cd909c1fd6608f2ee34bfab12692e9b212e1186a64821f. 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/KRRAR1907300.
No More Words 시대를 초월한 마음 (From "이누야샤 1기")
최신 드라마 (Original Soundtrack) 인기가요 베스트 피아노 연주곡
사랑 알 수 없나봐 (From "WHY 당신이 연인에게 차인 진짜 이유 - Part.3")
모든 날, 모든 순간 (From "Every day, Every Moment") (From "키스 먼저 할까요 Part.3")