Fflur Dafydd
type: MusicGroup
description: Fflur Dafydd (born 1 August 1978) is a Welsh novelist, singer-songwriter and musician. Though mainly publishing in Welsh, she also writes in English. She contributes regularly in Welsh to Radio Cymru.
popularity: 2
followers: 304
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c4d2e1be85f9ef9ed74adb073f98ee8f8c0bc8b957770671fdb921904f84889
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8da15da-d756-4e99-8069-779a7e406fec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8da15da-d756-4e99-8069-779a7e406fec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8da15da-d756-4e99-8069-779a7e406fec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5c4d2e1be85f9ef9ed74adb073f98ee8f8c0bc8b957770671fdb921904f84889","name":"Fflur Dafydd","registered_at":"2026-06-21T16:18:21Z","symbol":"NIM1970629","token_address":"0x08ee6d032058929978a0936f6c3dd30517889ee9","type":"artist","uuid":"f8da15da-d756-4e99-8069-779a7e406fec"}
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 0x5c4d2e1be85f9ef9ed74adb073f98ee8f8c0bc8b957770671fdb921904f84889. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8da15da-d756-4e99-8069-779a7e406fec.json and https://artists.proofprofile.net/proofs/artist/f8da15da-d756-4e99-8069-779a7e406fec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x5c4d2e1be85f9ef9ed74adb073f98ee8f8c0bc8b957770671fdb921904f84889","name":"Fflur Dafydd","registered_at":"2026-06-21T16:18:21Z","symbol":"NIM1970629","token_address":"0x08ee6d032058929978a0936f6c3dd30517889ee9","type":"artist","uuid":"f8da15da-d756-4e99-8069-779a7e406fec"}
album: Coch Am Weddill Fy Oes
  type: MusicAlbum
  date published: 2005
album: Dala Fe Nôl
  type: MusicAlbum
  date published: 2006-06-05
album: Un Ffordd Mas
  type: MusicAlbum
  date published: 2007
album: Ffydd Gobaith Cariad
  type: MusicAlbum
  date published: 2012-06-04