Kārikā (कारिका) is a genre of Sanskrit literature. "Kārikā" also refers to any metrical verse or line which explains, in an aphoristic manner, some key idea (usually philosophical). Karikas are ofte
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 0x46bd5186d70a33683c09c7aee41007988b4a66cd49a972decaa299a636342a70. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e43cfe01-06b8-47db-bd51-91f4563ac00a.json and https://artists.proofprofile.net/proofs/artist/e43cfe01-06b8-47db-bd51-91f4563ac00a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).