Hammershøi
type: MusicGroup
genre: cold wave
genre: darkwave
genre: ebm
genre: industrial
genre: post-punk
popularity: 5
followers: 1177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27431b6c9db1517183d8642ee83f481cbda0c042a83fd611b1d0cd74a0c0c087
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x27431b6c9db1517183d8642ee83f481cbda0c042a83fd611b1d0cd74a0c0c087","name":"Hammershøi","registered_at":"2026-06-21T18:16:43Z","symbol":"NIM1998596","token_address":"0xe2806ed26ef820c5a60f7b001bc3989fb53b8ebc","type":"artist","uuid":"fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571"}
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 0x27431b6c9db1517183d8642ee83f481cbda0c042a83fd611b1d0cd74a0c0c087. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571.json and https://artists.proofprofile.net/proofs/artist/fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x27431b6c9db1517183d8642ee83f481cbda0c042a83fd611b1d0cd74a0c0c087","name":"Hammershøi","registered_at":"2026-06-21T18:16:43Z","symbol":"NIM1998596","token_address":"0xe2806ed26ef820c5a60f7b001bc3989fb53b8ebc","type":"artist","uuid":"fe6a3bb6-fc67-41c9-9bbb-1e4ffd16f571"}
album: Hammershøi
  type: MusicAlbum
  date published: 2020-06-18
album: Cathédrales
  type: MusicAlbum
  date published: 2021-03-05
  track: Hammershøi assassiné
    type: MusicRecording
    duration: PT4M11S
    duration ms: 251529
    explicit: false
    by artist: Hammershøi
    in album: Cathédrales
      type: MusicAlbum
      date published: 2021-03-05
    genre: cold wave
    genre: darkwave
    genre: ebm
    genre: industrial
    genre: post-punk
    isrc code: USCGJ2167857
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T21:25:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x64ab767198dfb5d2b5405b18d1c2691d0e09a7881c19706f47d5ba6c504ee793
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959061
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959061
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2167857
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T21:34:21Z
    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 0x64ab767198dfb5d2b5405b18d1c2691d0e09a7881c19706f47d5ba6c504ee793. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USCGJ2167857.
      date published: 2026-07-21T21:34:21Z
    audio: Hammershøi assassiné
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.999
      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: 0.613
      additional property: Energy
        type: PropertyValue
        value: 0.926
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.217
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.493
      additional property: Liveness
        type: PropertyValue
        value: 0.59
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.851
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.684
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
track: Les Maudits
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188800
  explicit: false
  by artist: Hammershøi
  in album: Dystatik Synth Compilation
    type: MusicAlbum
    date published: 2024-09-25
  isrc code: QZMHM2476787
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T14:18:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf078c1da4c0c273f5007e39d2df9fb39dece37709264a6deb3383b29c3aa635d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHM2476787
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xf078c1da4c0c273f5007e39d2df9fb39dece37709264a6deb3383b29c3aa635d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZMHM2476787.
    date published: 2026-07-08T03:20:19Z
  audio: Les Maudits
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 152.016
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.45
    additional property: Energy
      type: PropertyValue
      value: 0.819
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Acousticness
type: PropertyValue
value: 0.034

Instrumentalness
type: PropertyValue
value: 0.818

Liveness
type: PropertyValue
value: 0.111

Valence (Positivity)
type: PropertyValue
value: 0.801

Loudness (dB)
type: PropertyValue
value: -10.793

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor