Forty Nine Hudson
type: MusicGroup
genre: math rock
genre: midwest emo
genre: screamo
genre: slowcore
popularity: 11
followers: 2118
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf1b870b72814e0e355add816f21c316f53d1c3307e8019aa56e54dc7bb9867c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953620
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953620
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e427059-0a60-40db-90c2-13bb0e38f284.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1e427059-0a60-40db-90c2-13bb0e38f284.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1e427059-0a60-40db-90c2-13bb0e38f284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:36:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf1b870b72814e0e355add816f21c316f53d1c3307e8019aa56e54dc7bb9867c","name":"Forty Nine Hudson","registered_at":"2026-06-14T07:39:55Z","symbol":"NIM0384196","token_address":"0x8e55887a1776c874fc2d27b42594c1f00d31c227","type":"artist","uuid":"1e427059-0a60-40db-90c2-13bb0e38f284"}
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 0xdf1b870b72814e0e355add816f21c316f53d1c3307e8019aa56e54dc7bb9867c. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e427059-0a60-40db-90c2-13bb0e38f284.json and https://artists.proofprofile.net/proofs/artist/1e427059-0a60-40db-90c2-13bb0e38f284.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:36:10Z
  text: {"copyright_id":"0xdf1b870b72814e0e355add816f21c316f53d1c3307e8019aa56e54dc7bb9867c","name":"Forty Nine Hudson","registered_at":"2026-06-14T07:39:55Z","symbol":"NIM0384196","token_address":"0x8e55887a1776c874fc2d27b42594c1f00d31c227","type":"artist","uuid":"1e427059-0a60-40db-90c2-13bb0e38f284"}
album: For Weeks At a Time
  type: MusicAlbum
  date published: 1998-04-16
  track: Mountain Laurel, Lovely, It's Lovely
    type: MusicRecording
    duration: PT5M31S
    duration ms: 331000
    explicit: false
    by artist: Forty Nine Hudson
    in album: For Weeks At a Time
      type: MusicAlbum
      date published: 1998-04-16
    genre: math rock
    genre: midwest emo
    genre: screamo
    genre: slowcore
    isrc code: USCGJ1383352
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T20:21:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb6503a6a24e826597b8ff021a9e87b95612ee5afa3867d1780b91db5ae9cf5f8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958455
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958455
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1383352
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T21:28:36Z
    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 0xb6503a6a24e826597b8ff021a9e87b95612ee5afa3867d1780b91db5ae9cf5f8. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USCGJ1383352.
      date published: 2026-07-17T21:28:36Z
    audio: Mountain Laurel, Lovely, It's Lovely
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.257
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.628
      additional property: Energy
        type: PropertyValue
        value: 0.107
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.401
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.907
      additional property: Liveness
        type: PropertyValue
        value: 0.19
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.144
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.678
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Hideout
    type: MusicRecording
    duration: PT7M41S
    duration ms: 461400
    explicit: false
    by artist: Forty Nine Hudson
    in album: For Weeks At a Time
      type: MusicAlbum
      date published: 1998-04-16
    genre: math rock
    genre: midwest emo
    genre: screamo
    genre: slowcore
    isrc code: USCGJ1383354
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T19:57:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2bf54c18d6e3c5e5f68aa488bb4f7537ce314d77804e2164b340fa53bbc07a14
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957751
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957751
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1383354
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T20:41:42Z
    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 0x2bf54c18d6e3c5e5f68aa488bb4f7537ce314d77804e2164b340fa53bbc07a14. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USCGJ1383354.
      date published: 2026-07-12T20:41:42Z
    audio: Hideout
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 166.2
      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: 0.244
      additional property: Energy
        type: PropertyValue
        value: 0.389
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0.942

Liveness
type: PropertyValue
value: 0.067

Valence (Positivity)
type: PropertyValue
value: 0.065

Loudness (dB)
type: PropertyValue
value: -14.345

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major