{"copyright_id":"0x2506fb50a4da8a91c4385da8fb1df7f94c6cbc5a1bfe1c91da5c3d244e03530d","name":"Dark Water Collective","registered_at":"2026-06-11T13:46:07Z","symbol":"NIM0039004","token_address":"0x45bedd7ae97a9fedeb32ad8a6baf264e47073581","type":"artist","uuid":"1ddd79e3-c58e-4fcb-ae0b-f06ea093e3c5"}
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 0x2506fb50a4da8a91c4385da8fb1df7f94c6cbc5a1bfe1c91da5c3d244e03530d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ddd79e3-c58e-4fcb-ae0b-f06ea093e3c5.json and https://artists.proofprofile.net/proofs/artist/1ddd79e3-c58e-4fcb-ae0b-f06ea093e3c5.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 0xfcc48439c7e819720eb2523db4faaa2f11a2f3e91a73b631c93288a810aa7c78. 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/USL4R2156358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98855dfb7be64931407a16d728105ec9d446559e4cc6b5115f7b66b09d89c27. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USL4R2478460.