Oddity or oddities may refer to: Music The Oddities (rap group), a Toronto rap group formed in 1998 "Oddity", a song by Eric Prydz from his 2016 album Opus Oddity EP, a 1998 album by Cold Oddities,
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 0x91b33d2e9d2a897aca33d1f378d445ed14175b73ca13b5c1afe988ac9a0de78f. 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/5eb9e2bb-d981-4988-85a2-cb1c58e9618d.json and https://artists.proofprofile.net/proofs/artist/5eb9e2bb-d981-4988-85a2-cb1c58e9618d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).