In Greek mythology, the name Borus (Ancient Greek: Βῶρος) may refer to: Borus, son of Perieres, who married Polydora, daughter of Peleus and Antigone.Homer, Iliad 16.177; Apollodorus, 3.13.1 Borus, a
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 0x626ef5e7d7f73e897cf498c204f568083ba0836bc44a3f9a1db60f2e079c4df9. 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/f457a295-16ce-45e3-b84f-2e332dc12b85.json and https://artists.proofprofile.net/proofs/artist/f457a295-16ce-45e3-b84f-2e332dc12b85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).