Zambo ( or ) or Sambu is a racial term to refer to people of mixed Amerindian and sub-Saharan African ancestry. The equivalent term in Brazil is (). However, in Portugal and Portuguese-speaking Afri
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 0x4fb85f29da51716140635f399864360fa73f771893146e359a99329fa2340916. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb4dbed8-a4b7-4de2-9645-2842f88ca51b.json and https://artists.proofprofile.net/proofs/artist/bb4dbed8-a4b7-4de2-9645-2842f88ca51b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).