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 0xd34c0ee869ce27b5a768168751e9c10969022413d297802179dfd413dca631fa. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/218f9580-dd1a-4c4a-96ac-d582754f042c.json and https://artists.proofprofile.net/proofs/artist/218f9580-dd1a-4c4a-96ac-d582754f042c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Do Oco da Viola ao Borralho do Fogão: A Moda Pós Rural
Do Oco da Viola ao Borralho do Fogão: A Moda Pós-rural