Birger Heimdal
type: MusicGroup
popularity: 14
followers: 588
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3fde51c0beb63bc912f83394443376b261bc3dafe63dc35d6f928388aea1cf2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6bbd702-22d3-4793-b782-3be5f2e37502.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6bbd702-22d3-4793-b782-3be5f2e37502.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c6bbd702-22d3-4793-b782-3be5f2e37502
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:33:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe3fde51c0beb63bc912f83394443376b261bc3dafe63dc35d6f928388aea1cf2","name":"Birger Heimdal","registered_at":"2026-06-15T01:24:17Z","symbol":"NIM0638139","token_address":"0x0bcdd015a45a3f991c86d8e82a98d28e7ac8594b","type":"artist","uuid":"c6bbd702-22d3-4793-b782-3be5f2e37502"}
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 0xe3fde51c0beb63bc912f83394443376b261bc3dafe63dc35d6f928388aea1cf2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6bbd702-22d3-4793-b782-3be5f2e37502.json and https://artists.proofprofile.net/proofs/artist/c6bbd702-22d3-4793-b782-3be5f2e37502.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0xe3fde51c0beb63bc912f83394443376b261bc3dafe63dc35d6f928388aea1cf2","name":"Birger Heimdal","registered_at":"2026-06-15T01:24:17Z","symbol":"NIM0638139","token_address":"0x0bcdd015a45a3f991c86d8e82a98d28e7ac8594b","type":"artist","uuid":"c6bbd702-22d3-4793-b782-3be5f2e37502"}
album: Millionaires
  type: MusicAlbum
  date published: 2014-01-03
album: Home
  type: MusicAlbum
  date published: 2015-03-03
album: Stay
  type: MusicAlbum
  date published: 2015-03-27
album: Liars
  type: MusicAlbum
  date published: 2016-06-10
album: First Time
  type: MusicAlbum
  date published: 2017-02-14
album: Du og jeg
  type: MusicAlbum
  date published: 2017-05-23
album: Need you
  type: MusicAlbum
  date published: 2017-09-17
album: You Are the Reason
  type: MusicAlbum
  date published: 2019-12-01
  track: You Are the Reason
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207904
    explicit: false
    by artist: Birger Heimdal
    in album: You Are the Reason
      type: MusicAlbum
      date published: 2019-12-01
    isrc code: QZK6P1991645
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:16:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x60381aec8b293b7778963e29054a86fc0097d7e9a5a3048f2dd5332b28da27d6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958324
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958324
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P1991645
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:22:07Z
    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 0x60381aec8b293b7778963e29054a86fc0097d7e9a5a3048f2dd5332b28da27d6. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:22:07Z), 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/QZK6P1991645.
      date published: 2026-07-16T23:22:07Z
    audio: You Are the Reason
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.569
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.415
      additional property: Energy
        type: PropertyValue
        value: 0.094
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.902
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.327
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.04
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Eg Tar Di Hånd
  type: MusicAlbum
  date published: 2022-03-04
  track: Eg Tar Di Hånd
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193695
    explicit: false
    by artist: Birger Heimdal
    in album: Eg Tar Di Hånd
      type: MusicAlbum
      date published: 2022-03-04
    isrc code: QZDA72253949
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T00:39:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa1553af387343ee8fc4ca785e3b58b26e5e1476b16f675f5d2b0d18671f1a75f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958633
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958633
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72253949
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T00:54:50Z
    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 0xa1553af387343ee8fc4ca785e3b58b26e5e1476b16f675f5d2b0d18671f1a75f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZDA72253949.
      date published: 2026-07-19T00:54:50Z
    audio: Eg Tar Di Hånd
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 183.717
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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

Danceability
type: PropertyValue
value: 0.393

Energy
type: PropertyValue
value: 0.408

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.678

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.109

Valence (Positivity)
type: PropertyValue
value: 0.42

Loudness (dB)
type: PropertyValue
value: -9.318

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major