Mac Adams
type: MusicGroup
description: Mac Adams (born in 1943 in Brynmawr, South Wales, UK) is a British artist. Early life and education Adams studied at Cardiff School of Art & Design 1962–1967. In 1966 he married Barbara Whedon, an Am
popularity: 14
followers: 230
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12f50b806495828cc386afb946cc0da1650dd2ff6fbf3c07cc3b6cea3ec09844
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/866817a7-8e6a-4fee-875b-5485a091d995.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/866817a7-8e6a-4fee-875b-5485a091d995.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/866817a7-8e6a-4fee-875b-5485a091d995
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12f50b806495828cc386afb946cc0da1650dd2ff6fbf3c07cc3b6cea3ec09844","name":"Mac Adams","registered_at":"2026-06-14T18:34:02Z","symbol":"NIM0540214","token_address":"0x9c2d4c646c84c66bdba96d0eb8a59a2b1cca1f98","type":"artist","uuid":"866817a7-8e6a-4fee-875b-5485a091d995"}
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 0x12f50b806495828cc386afb946cc0da1650dd2ff6fbf3c07cc3b6cea3ec09844. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/866817a7-8e6a-4fee-875b-5485a091d995.json and https://artists.proofprofile.net/proofs/artist/866817a7-8e6a-4fee-875b-5485a091d995.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:33:41Z
  text: {"copyright_id":"0x12f50b806495828cc386afb946cc0da1650dd2ff6fbf3c07cc3b6cea3ec09844","name":"Mac Adams","registered_at":"2026-06-14T18:34:02Z","symbol":"NIM0540214","token_address":"0x9c2d4c646c84c66bdba96d0eb8a59a2b1cca1f98","type":"artist","uuid":"866817a7-8e6a-4fee-875b-5485a091d995"}
album: Place Called Home
  type: MusicAlbum
  date published: 2025-03-21
album: Never Know
  type: MusicAlbum
  date published: 2025-07-25
  track: Never Know
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204464
    explicit: false
    by artist: Mac Adams
    in album: Never Know
      type: MusicAlbum
      date published: 2025-07-25
    isrc code: QT4K52551394
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:48:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x150f83b9d0e8f89684f0fe6786b03f4f7ba804798470bad89e55c5e7f7ee5922
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT4K52551394
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 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 0x150f83b9d0e8f89684f0fe6786b03f4f7ba804798470bad89e55c5e7f7ee5922. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT4K52551394.
      date published: 2026-07-05T10:01:46Z
    audio: Never Know
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.726
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.536
      additional property: Energy
        type: PropertyValue
        value: 0.51
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.569
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.216
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.38
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.941
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor