Humdrum Book Club
type: MusicGroup
popularity: 4
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc051fab332ba406c79806b1cd8a4dced3b9704a0f5544a548ad3bb2732ea68a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6334493f-6204-4f1c-97c4-9a82d1b9f512.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6334493f-6204-4f1c-97c4-9a82d1b9f512.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6334493f-6204-4f1c-97c4-9a82d1b9f512
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc051fab332ba406c79806b1cd8a4dced3b9704a0f5544a548ad3bb2732ea68a2","name":"Humdrum Book Club","registered_at":"2026-06-17T00:12:49Z","symbol":"NIM1220119","token_address":"0x679a04827ebd406b7630a5abf065e37b4a8f3f6d","type":"artist","uuid":"6334493f-6204-4f1c-97c4-9a82d1b9f512"}
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 0xc051fab332ba406c79806b1cd8a4dced3b9704a0f5544a548ad3bb2732ea68a2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6334493f-6204-4f1c-97c4-9a82d1b9f512.json and https://artists.proofprofile.net/proofs/artist/6334493f-6204-4f1c-97c4-9a82d1b9f512.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc051fab332ba406c79806b1cd8a4dced3b9704a0f5544a548ad3bb2732ea68a2","name":"Humdrum Book Club","registered_at":"2026-06-17T00:12:49Z","symbol":"NIM1220119","token_address":"0x679a04827ebd406b7630a5abf065e37b4a8f3f6d","type":"artist","uuid":"6334493f-6204-4f1c-97c4-9a82d1b9f512"}
album: 1997
  type: MusicAlbum
  date published: 2024-04-10
album: Boyfriend
  type: MusicAlbum
  date published: 2024-08-30
album: Thinking of Black
  type: MusicAlbum
  date published: 2025-02-09
  track: Thinking of Black
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215588
    explicit: true
    by artist: Humdrum Book Club
    in album: Thinking of Black
      type: MusicAlbum
      date published: 2025-02-09
    isrc code: QZFZ22562920
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T06:45:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f0dd082f9241a01a8b8457cd9b79d6dd5aadc4ac4141408c2d55a491bfb13aa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22562920
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0x3f0dd082f9241a01a8b8457cd9b79d6dd5aadc4ac4141408c2d55a491bfb13aa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFZ22562920.
      date published: 2026-07-18T12:14:37Z
    audio: Thinking of Black
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.998
      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: 0.505
      additional property: Energy
        type: PropertyValue
        value: 0.887
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.031
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.063
      additional property: Liveness
        type: PropertyValue
        value: 0.316
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.771
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.983
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Something Happened
  type: MusicAlbum
  date published: 2025-09-26