Mayfield Sound
type: MusicGroup
popularity: 2
followers: 170
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x358478394ca0d0d225da57d07efa2f28cbcb1c5ee7155a0d33f1eb7b61119f0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c24d9eb5-7f9a-4fa2-95b0-c406a4126794.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c24d9eb5-7f9a-4fa2-95b0-c406a4126794.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c24d9eb5-7f9a-4fa2-95b0-c406a4126794
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x358478394ca0d0d225da57d07efa2f28cbcb1c5ee7155a0d33f1eb7b61119f0c","name":"Mayfield Sound","registered_at":"2026-06-20T19:44:13Z","symbol":"NIM1695454","token_address":"0xb5c4a616a8f3336df92d4626448cb40f048a96ad","type":"artist","uuid":"c24d9eb5-7f9a-4fa2-95b0-c406a4126794"}
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 0x358478394ca0d0d225da57d07efa2f28cbcb1c5ee7155a0d33f1eb7b61119f0c. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c24d9eb5-7f9a-4fa2-95b0-c406a4126794.json and https://artists.proofprofile.net/proofs/artist/c24d9eb5-7f9a-4fa2-95b0-c406a4126794.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x358478394ca0d0d225da57d07efa2f28cbcb1c5ee7155a0d33f1eb7b61119f0c","name":"Mayfield Sound","registered_at":"2026-06-20T19:44:13Z","symbol":"NIM1695454","token_address":"0xb5c4a616a8f3336df92d4626448cb40f048a96ad","type":"artist","uuid":"c24d9eb5-7f9a-4fa2-95b0-c406a4126794"}
album: Make It Better
  type: MusicAlbum
  date published: 2024-03-08
album: Doghouse
  type: MusicAlbum
  date published: 2024-05-02
album: Here with you
  type: MusicAlbum
  date published: 2024-11-20
album: Free Gaff
  type: MusicAlbum
  date published: 2025-03-21
  track: Free Gaff
    type: MusicRecording
    duration: PT4M46S
    duration ms: 286000
    explicit: true
    by artist: Mayfield Sound
    in album: Free Gaff
      type: MusicAlbum
      date published: 2025-03-21
    isrc code: QZHN82546779
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T10:22:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8812bf0bb507c826f637e54243cb911e9f6d68a5889258be93b14dc6d8a5dba6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN82546779
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:43:37Z
    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 0x8812bf0bb507c826f637e54243cb911e9f6d68a5889258be93b14dc6d8a5dba6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN82546779.
      date published: 2026-07-16T12:43:37Z
    audio: Free Gaff
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.062
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.581
      additional property: Energy
        type: PropertyValue
        value: 0.83
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.352
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.9
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.824
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Strangers On The Internet
  type: MusicAlbum
  date published: 2025-04-30