Alpina is a high-end luxury automobile brand by BMW. Alpina originally started as an automobile manufacturing company named Alpina Burkard Bovensiepen, based in Buchloe, in the Ostallgäu district of B
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 0x1f5bef5969d2135e43c0ef2a050f381f84dc13f653352437eff0668ce8642ed4. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/148458b8-c8e0-418c-a6dd-6a7a2b77b0f8.json and https://artists.proofprofile.net/proofs/artist/148458b8-c8e0-418c-a6dd-6a7a2b77b0f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).