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 0x9c1c2037a61f4f165653839af8bc60869afb0c4ca45d1b8993b095c1db358825. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff59944e-11f3-40dc-ae0b-ca204076377d.json and https://artists.proofprofile.net/proofs/artist/ff59944e-11f3-40dc-ae0b-ca204076377d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wish You (Original Television Soundtrack)
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 0x217e3b23b9f9135732391428d2e02e2cfaa5e97821611017a9fb19b4efe1b1b0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:23:34Z), 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/KRMIM2031745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea3e4a18418ad07d2d911c25e435507770cbce40010272e1907102c4ce3076d. 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/KRMIM2031746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e8256706d23386498cc26d2efe88a91425e1e72d6e03a6430e899ecd32ddfb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:33:41Z), 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/KRMIM2031747.
Nobleman Ryu's wedding (Original Television Soundtrack) Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed1fadce9e5582c84eee8c6b2f28efe7a34c29c3b24334af8f4357bbdebfdc4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZF452014770.
Start Dating (Original Drama Soundtrack, Pt. 6)
The Villain of Romance (Original Television Soundtrack) Pt. 5