Hiver Den
type: MusicGroup
genre: post-rock
popularity: 6
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x603d060da30f3a754cf4c4a4430a5437083775bac7683db2758281c2aff77a78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e81bb93f-c549-48a1-956d-5a546ee43cdd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e81bb93f-c549-48a1-956d-5a546ee43cdd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e81bb93f-c549-48a1-956d-5a546ee43cdd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x603d060da30f3a754cf4c4a4430a5437083775bac7683db2758281c2aff77a78","name":"Hiver Den","registered_at":"2026-06-21T09:26:51Z","symbol":"NIM1887624","token_address":"0xb00d64685147fc0ba346e6c77345b606d92a9e1b","type":"artist","uuid":"e81bb93f-c549-48a1-956d-5a546ee43cdd"}
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 0x603d060da30f3a754cf4c4a4430a5437083775bac7683db2758281c2aff77a78. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e81bb93f-c549-48a1-956d-5a546ee43cdd.json and https://artists.proofprofile.net/proofs/artist/e81bb93f-c549-48a1-956d-5a546ee43cdd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x603d060da30f3a754cf4c4a4430a5437083775bac7683db2758281c2aff77a78","name":"Hiver Den","registered_at":"2026-06-21T09:26:51Z","symbol":"NIM1887624","token_address":"0xb00d64685147fc0ba346e6c77345b606d92a9e1b","type":"artist","uuid":"e81bb93f-c549-48a1-956d-5a546ee43cdd"}
album: Feels Like Home
  type: MusicAlbum
  date published: 2023-02-01
  track: Feels Like Home
    type: MusicRecording
    duration: PT1M8S
    duration ms: 68000
    explicit: false
    by artist: Hiver Den
    in album: Feels Like Home
      type: MusicAlbum
      date published: 2023-02-01
    genre: post-rock
    isrc code: QZDA42335010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:11:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbaef32e1555a865c8f4c2488c9a961651609c0b196501694db50028ce19dbf24
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA42335010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0xbaef32e1555a865c8f4c2488c9a961651609c0b196501694db50028ce19dbf24. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZDA42335010 — a six-check JSON result.
      date published: 2026-07-20T21:15:01Z
    audio: Feels Like Home
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.427
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.212
      additional property: Energy
        type: PropertyValue
        value: 0.255
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.874
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.973
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.199
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.707
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Falling Star
  type: MusicAlbum
  date published: 2023-02-21
album: Falling Star
  type: MusicAlbum
  date published: 2023-03-01
  track: Falling Star
    type: MusicRecording
    duration: PT5M42S
    duration ms: 342113
    explicit: true
    by artist: Hiver Den
    in album: Falling Star
      type: MusicAlbum
      date published: 2023-03-01
    genre: post-rock
    isrc code: QZES62313612
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:36:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc36e2632d0769edf9c5b78113ec0226d56e0189c0544d30c08ee5e8cef1bb1f5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62313612
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xc36e2632d0769edf9c5b78113ec0226d56e0189c0544d30c08ee5e8cef1bb1f5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES62313612 — a six-check JSON result.
      date published: 2026-07-05T18:48:28Z
    audio: Falling Star
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.031
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.363
      additional property: Energy
        type: PropertyValue
        value: 0.226
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.65
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.273
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Some Days
album: Empty Spaces

Liveness
type: PropertyValue
value: 0.236

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
type: PropertyValue
value: -12.981

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Some Days
type: MusicAlbum
date published: 2023-12-31

Empty Spaces
type: MusicAlbum
date published: 2024-06-04
track: Empty Spaces
  type: MusicRecording
  duration: PT2M0S
  duration ms: 120000
  explicit: false
  by artist: Hiver Den
  in album: Empty Spaces
    type: MusicAlbum
    date published: 2024-06-04
  genre: post-rock
  isrc code: QZMEN2421169
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T14:28:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x97160f2e25113cd5fe0766b00ad3b68c1cb4f30e6029d18b0146f50bcb5dba58
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956822
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956822
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2421169
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T18:48:28Z
  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 0x97160f2e25113cd5fe0766b00ad3b68c1cb4f30e6029d18b0146f50bcb5dba58. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZMEN2421169 — a six-check JSON result.
    date published: 2026-07-05T18:48:28Z
  audio: Empty Spaces
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.898
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.584
    additional property: Energy
      type: PropertyValue
      value: 0.22
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.91
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.041
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.481
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major