{"copyright_id":"0x4ee09e3ce7374c20b91f2ebb1129de77faccc3e1e469f1e87d0aca0f3493effc","name":"Hoàng Minh Dũng ms","registered_at":"2026-06-16T00:43:52Z","symbol":"NIM0883844","token_address":"0xec2cbfe687c48e9eff2dc54b4afb92fa525caff0","type":"artist","uuid":"1ffdf4a5-5bb2-48cf-b6cf-8e7ddfdcff77"}
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 0x4ee09e3ce7374c20b91f2ebb1129de77faccc3e1e469f1e87d0aca0f3493effc. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ffdf4a5-5bb2-48cf-b6cf-8e7ddfdcff77.json and https://artists.proofprofile.net/proofs/artist/1ffdf4a5-5bb2-48cf-b6cf-8e7ddfdcff77.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 → 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 0x1419febbb0912fedc1b9d1f0d47657de7e616ddb563acc8c2fd9c8a7f50e32a1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJT2564696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c15a055c9178775008b1e0606564cb3fc2ce7df14bdd641da6922677bed48ac. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFT2511249.
Platform Eleven Nine (A Healing Tribute)