{"copyright_id":"0xfb4d47c0b2bf9effda54a5c65eebbb6bc6e617a20debce7dce9f02e9c1afc96b","name":"Nathaniel E. Young","registered_at":"2026-06-14T14:48:57Z","symbol":"NIM0486545","token_address":"0xd26a7eb4a9bf7bf28eb492727f5de711c87017fb","type":"artist","uuid":"624e52f8-1bf5-4adf-b4f3-5fa0c56290e8"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4d47c0b2bf9effda54a5c65eebbb6bc6e617a20debce7dce9f02e9c1afc96b. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/624e52f8-1bf5-4adf-b4f3-5fa0c56290e8.json and https://artists.proofprofile.net/proofs/artist/624e52f8-1bf5-4adf-b4f3-5fa0c56290e8.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87830ab3788a00a512f8e28d019133f1cacfb0a85c630ed972ccd089896c5798. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZTB32494712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bef08e5ac3f15da286300513117d779c20c48b82d67095e66a3c619f37ce5d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/UKZGC2503443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3697b956b5bbbe9cf87c1db26dd4a502fcc783c7187486ae00790467c7b766. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/UKZGC2503438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe824fe78e6a5c3c81f509f3625ebb043304e223634f489df776583aac4ee3123. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKZGC2501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe824fe78e6a5c3c81f509f3625ebb043304e223634f489df776583aac4ee3123. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKZGC2501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3697b956b5bbbe9cf87c1db26dd4a502fcc783c7187486ae00790467c7b766. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UKZGC2503438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bef08e5ac3f15da286300513117d779c20c48b82d67095e66a3c619f37ce5d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/UKZGC2503443.