Epthemars
type: MusicGroup
popularity: 12
followers: 1420
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd772fe631afd5a9b12f05fa4a50391f629fb395fbeb2a5a888c963b5e5734940
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/534ff0fc-123c-44e6-b908-34711efb6b2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/534ff0fc-123c-44e6-b908-34711efb6b2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/534ff0fc-123c-44e6-b908-34711efb6b2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
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 0xd772fe631afd5a9b12f05fa4a50391f629fb395fbeb2a5a888c963b5e5734940. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/534ff0fc-123c-44e6-b908-34711efb6b2a.json and https://artists.proofprofile.net/proofs/artist/534ff0fc-123c-44e6-b908-34711efb6b2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
album: Alone
  type: MusicAlbum
  date published: 2018-06-21
album: Alone
  type: MusicAlbum
  date published: 2018-06-21
album: Fast Lane
  type: MusicAlbum
  date published: 2018-10-21
album: Fast Lane
  type: MusicAlbum
  date published: 2018-10-21
album: Nightmare
  type: MusicAlbum
  date published: 2018-11-01
album: Nightmare
  type: MusicAlbum
  date published: 2018-11-01
album: Froze
  type: MusicAlbum
  date published: 2019-07-05
album: Froze
  type: MusicAlbum
  date published: 2019-07-05
album: Sideways
  type: MusicAlbum
  date published: 2019-09-09
album: Sideways
  type: MusicAlbum
  date published: 2019-09-09
album: Fake Love
  type: MusicAlbum
  date published: 2019-11-11
album: Fake Love
  type: MusicAlbum
  date published: 2019-11-11
album: Benz Truck
  type: MusicAlbum
  date published: 2020-03-02
album: Benz Truck
  type: MusicAlbum
  date published: 2020-03-02
album: Zoom
  type: MusicAlbum
  date published: 2020-05-07
album: Zoom
  type: MusicAlbum
  date published: 2020-05-07
album: Miami
  type: MusicAlbum
  date published: 2020-08-05
album: Miami
  type: MusicAlbum
  date published: 2020-08-05
album: Lingo
  type: MusicAlbum
  date published: 2021-02-05
album: Cold Outside
  type: MusicAlbum
  date published: 2021-04-23
  track: Cold Outside
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143550
    explicit: true
    by artist: Epthemars
    in album: Cold Outside
      type: MusicAlbum
      date published: 2021-04-23
    isrc code: QM6MZ2168014
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T08:09:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xffe512ee7d0801f64efc71c6f4e2ebf8ccaf1b3ee653e479784e9704664ab14c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2168014
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0xffe512ee7d0801f64efc71c6f4e2ebf8ccaf1b3ee653e479784e9704664ab14c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM6MZ2168014.
      date published: 2026-07-18T12:14:37Z
    audio: Cold Outside
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.953
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.788
      additional property: Energy
        type: PropertyValue
        value: 0.392
      additional property: Speechiness
        type: PropertyValue
        value: 0.075
      additional property: Acousticness
        type: PropertyValue
        value: 0.602
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.279
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.525
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.49
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: My Gang
  type: MusicAlbum
  date published: 2022-06-02
album: My Gang
  type: MusicAlbum
  date published: 2022-06-02