Ifor James
type: MusicGroup
description: Professor Ifor James (30 August 1931 – 23 December 2004) was a horn player and teacher, numbering among his pupils many future Principal Horns and horn professors at British music schools. James was
popularity: 3
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x371ba35bfe841f402a360ada892936d25deecf0d7ec1cdb1e49acb9c152bb5c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7435432f-1446-48ac-829b-c4642a47cabd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7435432f-1446-48ac-829b-c4642a47cabd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7435432f-1446-48ac-829b-c4642a47cabd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x371ba35bfe841f402a360ada892936d25deecf0d7ec1cdb1e49acb9c152bb5c7","name":"Ifor James","registered_at":"2026-06-17T06:05:45Z","symbol":"NIM1304347","token_address":"0x7157d4b3e3c1d313dbf8af12674a04fa678cddc5","type":"artist","uuid":"7435432f-1446-48ac-829b-c4642a47cabd"}
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 0x371ba35bfe841f402a360ada892936d25deecf0d7ec1cdb1e49acb9c152bb5c7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7435432f-1446-48ac-829b-c4642a47cabd.json and https://artists.proofprofile.net/proofs/artist/7435432f-1446-48ac-829b-c4642a47cabd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x371ba35bfe841f402a360ada892936d25deecf0d7ec1cdb1e49acb9c152bb5c7","name":"Ifor James","registered_at":"2026-06-17T06:05:45Z","symbol":"NIM1304347","token_address":"0x7157d4b3e3c1d313dbf8af12674a04fa678cddc5","type":"artist","uuid":"7435432f-1446-48ac-829b-c4642a47cabd"}
album: Classique Virtuos
  type: MusicAlbum
  date published: 1987
album: Horn Sonatas
  type: MusicAlbum
  date published: 1987
album: Meditations - Works for Horn & Organ
  type: MusicAlbum
  date published: 1995
album: Horn Trios (For Horn)
  type: MusicAlbum
  date published: 1995-06-11
album: Beethoven/Cherubini/Danzi - Sonaten der Klassik für Horn
  type: MusicAlbum
  date published: 2017
album: Twentieth Century Music for Horn & Piano
  type: MusicAlbum
  date published: 2021-06-04