JEM
type: MusicGroup
genre: latin hip hop
description: Jem or JEM may refer to: Arts, entertainment and media Film and television Jem (TV series), or Jem and the Holograms, an American 1980s animated TV series Jerrica "Jem" Benton, protagonist of Jem (
popularity: 17
followers: 849
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4743a995f88e1f46326eecb46b6d64a173741273559e6de32dc3482d73e32e84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953620
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953620
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cab6543-7942-4521-897a-2a80c381b84d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cab6543-7942-4521-897a-2a80c381b84d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cab6543-7942-4521-897a-2a80c381b84d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:36:10Z
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 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 0x4743a995f88e1f46326eecb46b6d64a173741273559e6de32dc3482d73e32e84. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cab6543-7942-4521-897a-2a80c381b84d.json and https://artists.proofprofile.net/proofs/artist/1cab6543-7942-4521-897a-2a80c381b84d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:36:10Z
album: Loca Forma
  type: MusicAlbum
  date published: 2019-08-23
album: Loca Forma
  type: MusicAlbum
  date published: 2019-08-23
album: Oasis
  type: MusicAlbum
  date published: 2020-03-10
album: Oasis
  type: MusicAlbum
  date published: 2020-03-10
album: Aire X Humo
  type: MusicAlbum
  date published: 2021-01-06
album: Aire X Humo
  type: MusicAlbum
  date published: 2021-01-06
album: Cómo No Mirarte
  type: MusicAlbum
  date published: 2021-04-19
album: Cómo No Mirarte
  type: MusicAlbum
  date published: 2021-04-19
album: Desalojo
  type: MusicAlbum
  date published: 2022-09-30
album: Luna Luna
  type: MusicAlbum
  date published: 2023-07-27
album: Luna Luna
  type: MusicAlbum
  date published: 2023-07-27
album: Espesas
  type: MusicAlbum
  date published: 2023-10-19
album: Espesas
  type: MusicAlbum
  date published: 2023-10-19
  track: Espesas
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222261
    explicit: false
    by artist: JEM
    in album: Espesas
      type: MusicAlbum
      date published: 2023-10-19
    genre: latin hip hop
    isrc code: ES71G2329697
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T19:05:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x68cc329b343d3c0722bf95217417208acf8e086487ca294931af3a0efe0a3874
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2329697
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x68cc329b343d3c0722bf95217417208acf8e086487ca294931af3a0efe0a3874. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES71G2329697.
      date published: 2026-07-02T16:51:38Z
    audio: Espesas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.976
      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: 0.663
      additional property: Energy
        type: PropertyValue
        value: 0.669
      additional property: Speechiness
        type: PropertyValue
        value: 0.282
      additional property: Acousticness
        type: PropertyValue
        value: 0.154
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.128
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.386
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.827
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sin Rey Ni Ley
  type: MusicAlbum
  date published: 2024-11-28
album: Fiebre
  type: MusicAlbum
  date published: 2024-12-07
album: Fiebre
  type: MusicAlbum
  date published: 2024-12-12