Dumal, also called Dumala (also known as Mithila Nanda Gauda in eastern Odisha), is a community found in western Odisha, India. This caste is categorised as an Other Backward Class according to Reser
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 0x28a34c793bb1f9c6b656b5032569992302b495bcc706f0facbc1d79c3a87e68b. 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/bcb8f0b4-5980-4f3c-9e64-e2b130d89293.json and https://artists.proofprofile.net/proofs/artist/bcb8f0b4-5980-4f3c-9e64-e2b130d89293.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).