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 0xaeb03fad1608a98934626842824febfdea2b276fbda08be17c832a9f67e724ee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12f2c078-4b80-4d6e-a0a2-ffabe960b92e.json and https://artists.proofprofile.net/proofs/artist/12f2c078-4b80-4d6e-a0a2-ffabe960b92e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
지극히 높으신 주 King of Kings (feat. 박우정 Park Woo Jung)
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 0x098c10a4269a02125fe021009adcd632ef89d9571028281a907d026dbd16b5ec. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:35:24Z), 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/KRA351903304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e9c5634654c112cffec38ea99da640475015a04c2b5ec2500fac4ff5842156. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:20Z), 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/KRA352000752.
내 영혼의 빛 The Light of My Soul (feat. 윤지원 Joshua Youn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70fe8372af36dd8413db5280c7852786df15d00d6ffaba49c132fb778538dd2. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/KRA352000753.
주 나를 광야로 이끄실 때 In the Wilderness (feat. 이하나 Lee Ha Na)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93551e4483a012862614197fea3b5f3f976010614c2aa3c362747746b027e879. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRA352000755.