The Rax is a mountain range in the Northern Limestone Alps on the border of the Austrian federal provinces of Lower Austria and Styria. Its highest peak is the Heukuppe (2,007 m). The Rax, together wi
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 0x5d0e2e364a21531670f1003a4562aa848198569fbc007eb66c7d1ee875533bfa. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56136193-12af-4bf2-a985-58c585a015e4.json and https://artists.proofprofile.net/proofs/artist/56136193-12af-4bf2-a985-58c585a015e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).