Iris Williams
type: MusicGroup
description: Iris Williams (20 April 1946 – 11 July 2025) was a Welsh singer. Williams reached the peak of her popularity during the 1980s. Early life and education Williams was born in Rhydyfelin on 20 April 194
popularity: 2
followers: 242
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x055e8fc0a5e3d7698118c4f414556805bdb26b2505bc385fde3f2bbc058f3079
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b973cfc9-c1db-461e-9c85-5aad895219c9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b973cfc9-c1db-461e-9c85-5aad895219c9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b973cfc9-c1db-461e-9c85-5aad895219c9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x055e8fc0a5e3d7698118c4f414556805bdb26b2505bc385fde3f2bbc058f3079","name":"Iris Williams","registered_at":"2026-06-20T16:14:45Z","symbol":"NIM1652787","token_address":"0x9089744cd6ada01dd226f85a3f4bc0050194649c","type":"artist","uuid":"b973cfc9-c1db-461e-9c85-5aad895219c9"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055e8fc0a5e3d7698118c4f414556805bdb26b2505bc385fde3f2bbc058f3079. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b973cfc9-c1db-461e-9c85-5aad895219c9.json and https://artists.proofprofile.net/proofs/artist/b973cfc9-c1db-461e-9c85-5aad895219c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x055e8fc0a5e3d7698118c4f414556805bdb26b2505bc385fde3f2bbc058f3079","name":"Iris Williams","registered_at":"2026-06-20T16:14:45Z","symbol":"NIM1652787","token_address":"0x9089744cd6ada01dd226f85a3f4bc0050194649c","type":"artist","uuid":"b973cfc9-c1db-461e-9c85-5aad895219c9"}
album: I Gael Cymru'n Gymru Rydd
  type: MusicAlbum
  date published: 1974
album: Y Caneuon Cynnar / The Early Recordings
  type: MusicAlbum
  date published: 2000
album: Iris Williams - The Very Best Of
  type: MusicAlbum
  date published: 2006-07-03
album: I Wish You Love
  type: MusicAlbum
  date published: 2010-11-29
album: Atgofion
  type: MusicAlbum
  date published: 2010-11-29