Thomas Tantrum are an English indie pop band from Southampton, England. Biography Thomas Tantrum consists of Megan Thomas (lead vocals, guitar), Dave Wade Brown (drums, vocals), David Miatt (guitar
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 0x3859f45e43ae5ca01bf6a89d865395e9857ad3115329be979cd3e885612ae37f. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1561315b-391d-446a-9f1a-df20f8a9748c.json and https://artists.proofprofile.net/proofs/artist/1561315b-391d-446a-9f1a-df20f8a9748c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.