Robin og Bugge ('Robin and Bugge') is a Norwegian pop and rap duo composed of Robin Sharma and Thomas Bugge - the former originating from Manglerud, the latter Abildsø - both neighborhoods of Oslo, No
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 0x9562e62c7f3ca4df96c4824990794c7800831fdc0015651e7e24e706f86ac623. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de895a4d-e6de-40d5-bfc5-349aff5e361d.json and https://artists.proofprofile.net/proofs/artist/de895a4d-e6de-40d5-bfc5-349aff5e361d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).