Hans Laduc
type: MusicGroup
popularity: 7
followers: 180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9bdfb4fe5b873983c8700a38ea968d2d5f56d39291b0e4483b4e9a29fd6688b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953985
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953985
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d602919-bac0-44d7-98e7-72ccb5a240bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d602919-bac0-44d7-98e7-72ccb5a240bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2d602919-bac0-44d7-98e7-72ccb5a240bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:03:53Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9bdfb4fe5b873983c8700a38ea968d2d5f56d39291b0e4483b4e9a29fd6688b4","name":"Hans Laduc","registered_at":"2026-06-16T05:39:05Z","symbol":"NIM0954361","token_address":"0x2d60bf6adc7530d063b5779150e3e6bf8d94c7ba","type":"artist","uuid":"2d602919-bac0-44d7-98e7-72ccb5a240bc"}
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 0x9bdfb4fe5b873983c8700a38ea968d2d5f56d39291b0e4483b4e9a29fd6688b4. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d602919-bac0-44d7-98e7-72ccb5a240bc.json and https://artists.proofprofile.net/proofs/artist/2d602919-bac0-44d7-98e7-72ccb5a240bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x9bdfb4fe5b873983c8700a38ea968d2d5f56d39291b0e4483b4e9a29fd6688b4","name":"Hans Laduc","registered_at":"2026-06-16T05:39:05Z","symbol":"NIM0954361","token_address":"0x2d60bf6adc7530d063b5779150e3e6bf8d94c7ba","type":"artist","uuid":"2d602919-bac0-44d7-98e7-72ccb5a240bc"}
album: My Way to Nashville
  type: MusicAlbum
  date published: 2012-12-13
album: I'm Sailing Home
  type: MusicAlbum
  date published: 2021-08-11
album: Zonder Woorden
  type: MusicAlbum
  date published: 2022-09-30
album: My Way to Ithaka
  type: MusicAlbum
  date published: 2022-09-30
album: My Home
  type: MusicAlbum
  date published: 2022-09-30
  track: Father & Son
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204154
    explicit: false
    by artist: Hans Laduc
    in album: My Home
      type: MusicAlbum
      date published: 2022-09-30
    isrc code: TCAGL2271940
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:57:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xce8fd910591f7ff03b34b96956320c8c0e0348f337bf88f8d96d2bc7952f4337
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957763
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957763
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGL2271940
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T22:01:25Z
    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 0xce8fd910591f7ff03b34b96956320c8c0e0348f337bf88f8d96d2bc7952f4337. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/TCAGL2271940.
      date published: 2026-07-12T22:01:25Z
    audio: Father & Son
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.547
      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: 0.29
      additional property: Energy
        type: PropertyValue
        value: 0.184
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.91
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.911
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.342
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.636
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Family Tree
  type: MusicAlbum
  date published: 2022-12-05
album: Guardian Angel
  type: MusicAlbum
  date published: 2022-12-22
album: Driving in a Mustang
  type: MusicAlbum
  date published: 2023-04-03
album: Giant Hits - Acoustic Instrumentals
  type: MusicAlbum
  date published: 2023-07-27
album: Caledonia
  type: MusicAlbum
  date published: 2023-10-12
album: Hay Little Angel
  type: MusicAlbum
  date published: 2024-04-06
album: Layla Rose
  type: MusicAlbum
  date published: 2024-06-08
album: Endless Love
  type: MusicAlbum
  date published: 2024-06-21
album: Triggerfinger
  type: MusicAlbum
  date published: 2024-09-09
album: Wals for Max
  type: MusicAlbum
  date published: 2024-11-15
album: Daniël
  type: MusicAlbum
  date published: 2025-05-12