Teba is a town and municipality located in the province of Málaga in the autonomous community of Andalusia in southern Spain. It is situated in the northeast of the province, in Guadalteba comarca. As
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0aeeedd50060ac903bf0101a793e286bba9a1c883aaec42f52091ec6dbd5c8. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5208d27-2ce5-4165-98fd-c00448db4243.json and https://artists.proofprofile.net/proofs/artist/f5208d27-2ce5-4165-98fd-c00448db4243.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).