Huffagjengen
type: MusicGroup
popularity: 5
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31782b483929411834c276298ca7b0126785d7e33841c674fb845f9a4ee19c49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f73d552b-70ab-4bef-8e72-37e1cd741495.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f73d552b-70ab-4bef-8e72-37e1cd741495.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f73d552b-70ab-4bef-8e72-37e1cd741495
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
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 0x31782b483929411834c276298ca7b0126785d7e33841c674fb845f9a4ee19c49. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f73d552b-70ab-4bef-8e72-37e1cd741495.json and https://artists.proofprofile.net/proofs/artist/f73d552b-70ab-4bef-8e72-37e1cd741495.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
album: Huffas nattasang
  type: MusicAlbum
  date published: 2023-10-20
  track: Huffas nattasang
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219300
    explicit: false
    by artist: Huffagjengen
    in album: Huffas nattasang
      type: MusicAlbum
      date published: 2023-10-20
    isrc code: NOPW62301010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T05:06:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb556721c222fd43d2664aef7024147d49820d0500dbda101247621385fca281e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958373
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958373
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOPW62301010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:05:57Z
    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 0xb556721c222fd43d2664aef7024147d49820d0500dbda101247621385fca281e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:05:57Z), 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/NOPW62301010.
      date published: 2026-07-17T08:05:57Z
    audio: Huffas nattasang
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.918
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.505
      additional property: Energy
        type: PropertyValue
        value: 0.099
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.902
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.314
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.093
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Rumpa til Aud
  type: MusicAlbum
  date published: 2023-10-20
  track: Rumpa til Aud
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198596
    explicit: false
    by artist: Huffagjengen
    in album: Rumpa til Aud
      type: MusicAlbum
      date published: 2023-10-20
    isrc code: NOPW62302010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T20:01:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3b7fa734d2dc1e4c4cfdbbd867ac7c6a1e49fd910553fdf507c4d5d1035eb0b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958775
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958775
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOPW62302010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:13:58Z
    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 0x3b7fa734d2dc1e4c4cfdbbd867ac7c6a1e49fd910553fdf507c4d5d1035eb0b8. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/NOPW62302010.
      date published: 2026-07-19T20:13:58Z
    audio: Rumpa til Aud
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.839
      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: 0.698
      additional property: Energy
        type: PropertyValue
        value: 0.725
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.18
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.248
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.89
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.64
      additional property: Key Name
      additional property: Mode Name

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major