Mei Gwynedd
type: MusicGroup
popularity: 11
followers: 599
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74fef83032b0cb9da206749b2eb961bfbd3968c01b1101b8df3d1d185c7e59a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f432e11-258a-4f02-a771-8c4ec4ada7b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f432e11-258a-4f02-a771-8c4ec4ada7b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5f432e11-258a-4f02-a771-8c4ec4ada7b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x74fef83032b0cb9da206749b2eb961bfbd3968c01b1101b8df3d1d185c7e59a3","name":"Mei Gwynedd","registered_at":"2026-06-14T14:24:56Z","symbol":"NIM0480817","token_address":"0x81b3017a70c9fe7a54cab54fb1b8a572b8ebcdbf","type":"artist","uuid":"5f432e11-258a-4f02-a771-8c4ec4ada7b2"}
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 0x74fef83032b0cb9da206749b2eb961bfbd3968c01b1101b8df3d1d185c7e59a3. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f432e11-258a-4f02-a771-8c4ec4ada7b2.json and https://artists.proofprofile.net/proofs/artist/5f432e11-258a-4f02-a771-8c4ec4ada7b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0x74fef83032b0cb9da206749b2eb961bfbd3968c01b1101b8df3d1d185c7e59a3","name":"Mei Gwynedd","registered_at":"2026-06-14T14:24:56Z","symbol":"NIM0480817","token_address":"0x81b3017a70c9fe7a54cab54fb1b8a572b8ebcdbf","type":"artist","uuid":"5f432e11-258a-4f02-a771-8c4ec4ada7b2"}
album: Pethau Bychain
  type: MusicAlbum
  date published: 2016-07-05
  track: Pethau Bychain
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237179
    explicit: false
    by artist: Mei Gwynedd
    in album: Pethau Bychain
      type: MusicAlbum
      date published: 2016-07-05
    isrc code: GB33V1600021
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:21:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5b29b8e94a385aa6a5887bfd1770dcb4cd5f9024bd1d2d1ea049900b146bed97
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB33V1600021
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b29b8e94a385aa6a5887bfd1770dcb4cd5f9024bd1d2d1ea049900b146bed97. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB33V1600021.
      date published: 2026-07-06T01:25:57Z
    audio: Pethau Bychain
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.303
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.549
      additional property: Energy
        type: PropertyValue
        value: 0.625
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.398
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.025
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.282
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.618
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Nadolig Llawen a Blwyddyn Newydd Dda
  type: MusicAlbum
  date published: 2016-12-02
album: Tra Fyddaf Fyw
  type: MusicAlbum
  date published: 2018-04-27
album: Glas
  type: MusicAlbum
  date published: 2018-06-29
album: Tafla'r Dis
  type: MusicAlbum
  date published: 2018-11-30
album: Tafla'r Dis
  type: MusicAlbum
  date published: 2019-01-18
album: Hei Mistar Urdd
  type: MusicAlbum
  date published: 2019-05-10
album: Awst '93
  type: MusicAlbum
  date published: 2020-06-26
album: Dim Ffiniau
  type: MusicAlbum
  date published: 2020-10-09
album: Dyddiau Gwell i Ddod
  type: MusicAlbum
  date published: 2021-05-21
album: Y Gwir yn Erbyn y Byd
  type: MusicAlbum
  date published: 2021-08-11
album: Titw Tomos Las
  type: MusicAlbum
  date published: 2023-04-06
album: Sesiynau Tŷ Potas Carioci
  type: MusicAlbum
  date published: 2023-05-05
album: Sesiynau Tŷ Potas
  type: MusicAlbum
  date published: 2023-05-05
album: Cofia Di, Ngeiriau i
  type: MusicAlbum
  date published: 2025-10-31
album: Amser
  type: MusicAlbum
  date published: 2025-11-14