Harlem Hayfield
type: MusicGroup
popularity: 4
followers: 530
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e9237ee5467f4b6c453a894b8bf22d123fb42bbd4fcc2d0efb3827f9823125c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71762167-84f7-4118-aea3-3b3839312e52.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71762167-84f7-4118-aea3-3b3839312e52.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/71762167-84f7-4118-aea3-3b3839312e52
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0e9237ee5467f4b6c453a894b8bf22d123fb42bbd4fcc2d0efb3827f9823125c","name":"Harlem Hayfield","registered_at":"2026-06-17T05:12:47Z","symbol":"NIM1291706","token_address":"0xfceae594c97e070a477b4836c13086a1707ad46b","type":"artist","uuid":"71762167-84f7-4118-aea3-3b3839312e52"}
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 0x0e9237ee5467f4b6c453a894b8bf22d123fb42bbd4fcc2d0efb3827f9823125c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71762167-84f7-4118-aea3-3b3839312e52.json and https://artists.proofprofile.net/proofs/artist/71762167-84f7-4118-aea3-3b3839312e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0e9237ee5467f4b6c453a894b8bf22d123fb42bbd4fcc2d0efb3827f9823125c","name":"Harlem Hayfield","registered_at":"2026-06-17T05:12:47Z","symbol":"NIM1291706","token_address":"0xfceae594c97e070a477b4836c13086a1707ad46b","type":"artist","uuid":"71762167-84f7-4118-aea3-3b3839312e52"}
album: Two Sixes
  type: MusicAlbum
  date published: 2020-03-19
album: What the Hell
  type: MusicAlbum
  date published: 2020-04-03
album: Light Me Up
  type: MusicAlbum
  date published: 2020-04-24
album: Strong
  type: MusicAlbum
  date published: 2020-12-11
album: Holding on to Heaven
  type: MusicAlbum
  date published: 2024-08-30
  track: Holding On to Heaven
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265807
    explicit: false
    by artist: Harlem Hayfield
    in album: Holding on to Heaven
      type: MusicAlbum
      date published: 2024-08-30
    isrc code: QMES92400002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:45:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5502060df982f1b0290b021f21fec781f177510af430123317ad5a1ca7c72d1a
    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/QMES92400002
    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 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 0x5502060df982f1b0290b021f21fec781f177510af430123317ad5a1ca7c72d1a. 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/QMES92400002.
      date published: 2026-07-06T01:25:57Z
    audio: Holding On to Heaven
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.971
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.614
      additional property: Energy
        type: PropertyValue
        value: 0.709
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.295
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.241
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.224
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Charlie
  type: MusicAlbum
  date published: 2024-10-04
album: Countdown
  type: MusicAlbum
  date published: 2024-11-22
album: Titanic
  type: MusicAlbum
  date published: 2025-01-10
album: Lay Me Down
  type: MusicAlbum
  date published: 2025-03-14
album: Forget Her
  type: MusicAlbum
  date published: 2025-04-25
album: All You Need
  type: MusicAlbum
  date published: 2025-05-23
album: Coming Home
  type: MusicAlbum
  date published: 2025-06-27
album: Better Off
  type: MusicAlbum
  date published: 2025-08-08
album: Banter, Tells & Tricks
  type: MusicAlbum
  date published: 2025-09-26