DC most often refers to: Washington, D.C. (District of Columbia), the capital of the United States DC Comics, an American comic book publisher Direct current, electric current which flows in only o
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 0xded12e8deeb7131172b8d3f0566df845be8a073a718ba7117d61fe05630baaf9. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4db03bfe-7ce6-4930-9e18-b354581b8146.json and https://artists.proofprofile.net/proofs/artist/4db03bfe-7ce6-4930-9e18-b354581b8146.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).