O'Bros is a German Christian hip hop duo. The duo consists of brothers Maximilian (born 20 April 1996) and Alexander Oberschelp (12 September 1997). History The Oberschelp brothers began writing song
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 0x388fcaf1be743ec5826ae38d5e3671e9d7390e95f1fec6fc0d4ffcfff3c4c36d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fdb3dc1-43d3-4cbe-9a33-9b30092d7017.json and https://artists.proofprofile.net/proofs/artist/5fdb3dc1-43d3-4cbe-9a33-9b30092d7017.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).