Susmit Sen is an Indian guitarist formerly part of Indian Ocean, an Indian fusion rock band, which he founded with lead vocalist Asheem Chakravarty in 1990. Sen released his first solo album, Depths o
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 0xb821b8202cd5a8e5bebff4c6b88f7ec85d8035be8147810697f756e133c9c173. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8e0cdd1-3512-4f69-9de0-9975539ed8a5.json and https://artists.proofprofile.net/proofs/artist/e8e0cdd1-3512-4f69-9de0-9975539ed8a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).