James Hann
type: MusicGroup
description: James Hann (1799–1856) was an English mathematician, teacher and textbook writer. Life Hann was born at Washington, County Durham, where his father was a colliery smith. After working as a fireman at
popularity: 2
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1a63a34e4a85366c79fb82abe0c442f9e1cb6c109da1067de9efbb7567ae6aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d93bc66-86ab-4586-a3f2-1121bf29c45b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8d93bc66-86ab-4586-a3f2-1121bf29c45b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8d93bc66-86ab-4586-a3f2-1121bf29c45b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf1a63a34e4a85366c79fb82abe0c442f9e1cb6c109da1067de9efbb7567ae6aa","name":"James Hann","registered_at":"2026-06-17T15:00:42Z","symbol":"NIM1431830","token_address":"0x56bf6b0ab9e00ab7b882ac422909791dba799386","type":"artist","uuid":"8d93bc66-86ab-4586-a3f2-1121bf29c45b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a63a34e4a85366c79fb82abe0c442f9e1cb6c109da1067de9efbb7567ae6aa. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d93bc66-86ab-4586-a3f2-1121bf29c45b.json and https://artists.proofprofile.net/proofs/artist/8d93bc66-86ab-4586-a3f2-1121bf29c45b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xf1a63a34e4a85366c79fb82abe0c442f9e1cb6c109da1067de9efbb7567ae6aa","name":"James Hann","registered_at":"2026-06-17T15:00:42Z","symbol":"NIM1431830","token_address":"0x56bf6b0ab9e00ab7b882ac422909791dba799386","type":"artist","uuid":"8d93bc66-86ab-4586-a3f2-1121bf29c45b"}
album: Something In The Orange
  type: MusicAlbum
  date published: 2023-11-02
album: Something In The Orange
  type: MusicAlbum
  date published: 2023-11-02
album: Live Forever
  type: MusicAlbum
  date published: 2025-07-31