El Pus (pronounced El Poose) was an American rap rock group from Atlanta. The members formed the group in the early 1990s and released their first album Strange Cowboys in 1998 under Vagabond Product
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 0x899d1d27443c1707444839c4075431c929e8dcfb1960175465a1188f78209272. 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/788b0491-a8cf-4ce6-8672-3c1f680516c6.json and https://artists.proofprofile.net/proofs/artist/788b0491-a8cf-4ce6-8672-3c1f680516c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).