Elkheart
type: MusicGroup
genre: melodic techno
popularity: 10
followers: 1143
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd355f1a084120bdf273496095190ff6541cf7dcbf5123ef37dfc1c539eb22daa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48611b11-227a-46b7-b7f8-08e8bb430edf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48611b11-227a-46b7-b7f8-08e8bb430edf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48611b11-227a-46b7-b7f8-08e8bb430edf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
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 0xd355f1a084120bdf273496095190ff6541cf7dcbf5123ef37dfc1c539eb22daa. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48611b11-227a-46b7-b7f8-08e8bb430edf.json and https://artists.proofprofile.net/proofs/artist/48611b11-227a-46b7-b7f8-08e8bb430edf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:10:43Z
album: Greyhound
  type: MusicAlbum
  date published: 2022-09-21
  track: Greyhound
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250645
    explicit: false
    by artist: Elkheart
    in album: Greyhound
      type: MusicAlbum
      date published: 2022-09-21
    genre: melodic techno
    isrc code: QZMHM2261723
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:58:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x485723aa26f689b941df2fdb13b01a76984725f4d81d3e9ea53e2877873dbe08
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHM2261723
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:05Z
    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 0x485723aa26f689b941df2fdb13b01a76984725f4d81d3e9ea53e2877873dbe08. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHM2261723 — a six-check JSON result.
      date published: 2026-07-21T13:14:05Z
    audio: Greyhound
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.968
      additional property: Musical Key
        type: PropertyValue
        value: 7
      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: 0.873
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.074
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.916
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.113
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.534
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Greyhound
  type: MusicAlbum
  date published: 2022-09-21
album: Fingerprint
  type: MusicAlbum
  date published: 2023-03-01
album: Fingerprint
  type: MusicAlbum
  date published: 2023-03-01
album: Prologue
  type: MusicAlbum
  date published: 2024-02-21
album: Dreamworld
  type: MusicAlbum
  date published: 2024-10-16
album: Trancesender
  type: MusicAlbum
  date published: 2025-09-24
album: Infinitus
  type: MusicAlbum
  date published: 2025-10-15