Real Bad is the name of a fundraising party held annually in San Francisco, California, immediately following the Folsom Street Fair. The party, which occurs on the last Sunday in September, has been
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 0x14e161200acf59396efc37a1fabf67d0b55392ef6f505a3b8857f78cdc31e670. 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/dd50abb8-536f-48dc-9b89-5fa5283bbc7a.json and https://artists.proofprofile.net/proofs/artist/dd50abb8-536f-48dc-9b89-5fa5283bbc7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).