1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc057241a4c01b66b654f06a5a24c8f20b5410d2c35df8e1c9a810f9268e9296a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/567eca70-10e3-4e8e-9e35-7a07dd471038.json and https://artists.proofprofile.net/proofs/artist/567eca70-10e3-4e8e-9e35-7a07dd471038.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Doctor Strange in the Multiverse of Madness (Hörspiel zum Marvel Film)
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Doctor Strange (Hörspiel zum Marvel Film)