Jmac
type: MusicGroup
popularity: 5
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x027756c49981d3a541be0026d6de53caaace764731c5a15453275a1b80f4c174
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/480acdbd-6ddb-4e8a-80b3-679c0e232db3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/480acdbd-6ddb-4e8a-80b3-679c0e232db3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/480acdbd-6ddb-4e8a-80b3-679c0e232db3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
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 0x027756c49981d3a541be0026d6de53caaace764731c5a15453275a1b80f4c174. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/480acdbd-6ddb-4e8a-80b3-679c0e232db3.json and https://artists.proofprofile.net/proofs/artist/480acdbd-6ddb-4e8a-80b3-679c0e232db3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:49:29Z
album: Been a Problem
  type: MusicAlbum
  date published: 2019-12-25
album: clutcher
  type: MusicAlbum
  date published: 2021-01-11
album: hallways
  type: MusicAlbum
  date published: 2021-01-19
album: thuggery
  type: MusicAlbum
  date published: 2021-01-25
album: Purpose In Pain
  type: MusicAlbum
  date published: 2024-04-15
album: First Time DrilMix
  type: MusicAlbum
  date published: 2024-04-25
album: 4everEast
  type: MusicAlbum
  date published: 2024-05-07
album: Tally Wit Da Top
  type: MusicAlbum
  date published: 2024-07-25
album: DEAD PEOPLE
  type: MusicAlbum
  date published: 2024-12-14
album: Head Stone
  type: MusicAlbum
  date published: 2025-01-31
  track: Head Stone
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164581
    explicit: true
    by artist: Jmac
    in album: Head Stone
      type: MusicAlbum
      date published: 2025-01-31
    isrc code: QZFZ42597038
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:28:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcb8f0797579da62904154e8cbf46481a6ecd264c0d827de5b487bb8bb0024e96
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42597038
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xcb8f0797579da62904154e8cbf46481a6ecd264c0d827de5b487bb8bb0024e96. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZFZ42597038.
      date published: 2026-07-03T19:59:51Z
    audio: Head Stone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.171
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.756
      additional property: Energy
        type: PropertyValue
        value: 0.605
      additional property: Speechiness
        type: PropertyValue
        value: 0.388
      additional property: Acousticness
        type: PropertyValue
        value: 0.119
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.495
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.012
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major