Pee Froiss is a hip hop group formed in Dakar, Senegal in 1993. It was originally a dance group which refocused on rap. Early on, Pee Froiss received mentorship from the Senegalese rap luminaries Posi
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 0xf2b5f38f86195db2eddc4388dea5605fa984e6b9652fdb66afb6e66c5b685c90. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6bd259f-00ca-4eaa-ba1d-da890ca47e32.json and https://artists.proofprofile.net/proofs/artist/f6bd259f-00ca-4eaa-ba1d-da890ca47e32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).