Robert Aschberg (born 19 March 1952 on Kungsholmen, in Stockholm) is a Swedish journalist and media executive. He works for the Swedish television channel TV3. Robert Aschberg was a Maoist in his yout
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 0xb3f6a0fa520911aa445803ca5c4d9c082a6d7c825b9db9a731ec0c7a3769be08. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7af2472-0825-42c4-b450-22354b34b873.json and https://artists.proofprofile.net/proofs/artist/d7af2472-0825-42c4-b450-22354b34b873.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).