MHem
type: MusicGroup
popularity: 5
followers: 122
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ef25b8d77a9c7a7861bccef12c1dbc7d3ceaf7e3220c76dd65c6c89081fe06a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954076
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954076
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ad8ccf5-31b6-435e-b74b-fa8eee44dbeb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ad8ccf5-31b6-435e-b74b-fa8eee44dbeb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ad8ccf5-31b6-435e-b74b-fa8eee44dbeb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T09:28:47Z
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 0x8ef25b8d77a9c7a7861bccef12c1dbc7d3ceaf7e3220c76dd65c6c89081fe06a. Chain 2 (Bitcoin): anchored in block 954076 (2026-06-17T09:28:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ad8ccf5-31b6-435e-b74b-fa8eee44dbeb.json and https://artists.proofprofile.net/proofs/artist/7ad8ccf5-31b6-435e-b74b-fa8eee44dbeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T09:28:47Z
album: Friends With Benefits
  type: MusicAlbum
  date published: 2023-09-30
album: Single Life
  type: MusicAlbum
  date published: 2023-11-24
album: Single Life - EP
  type: MusicAlbum
  date published: 2023-12-23
album: Do You Feel Like We Do
  type: MusicAlbum
  date published: 2024-04-19
album: One Night Stand
  type: MusicAlbum
  date published: 2024-04-26
  track: Summer Madness
    type: MusicRecording
    duration: PT4M22S
    duration ms: 262250
    explicit: false
    by artist: MHem
    in album: One Night Stand
      type: MusicAlbum
      date published: 2024-04-26
    isrc code: USDY42468057
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:39:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3af8570c01e124062b7307ac5b5ae12d8ff0c0e60d3b9b06ed6df29917471eb0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958885
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958885
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY42468057
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:01:04Z
    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 0x3af8570c01e124062b7307ac5b5ae12d8ff0c0e60d3b9b06ed6df29917471eb0. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USDY42468057.
      date published: 2026-07-20T13:01:04Z
    audio: Summer Madness
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.218
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.271
      additional property: Energy
        type: PropertyValue
        value: 0.762
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.216
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.464
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.315
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Little Sunflower
  type: MusicAlbum
  date published: 2024-05-24
album: 777-9311
  type: MusicAlbum
  date published: 2024-08-09
album: Stairway to Heaven
  type: MusicAlbum
  date published: 2024-08-23
album: In Me So Deep
  type: MusicAlbum
  date published: 2024-09-06
album: Summer Madness - EP
  type: MusicAlbum
  date published: 2024-09-20
album: Are You Going with Me
  type: MusicAlbum
  date published: 2024-10-04
album: Hidden Agenda
  type: MusicAlbum
  date published: 2024-10-18
album: Save Yourself for Me
  type: MusicAlbum
  date published: 2024-11-01
album: Be Thankful For What You Got
  type: MusicAlbum
  date published: 2024-11-15
album: Why Can't We Live
  type: MusicAlbum
  date published: 2024-12-20
album: Ye Yo
  type: MusicAlbum
  date published: 2025-01-03