David Dahl
type: MusicGroup
popularity: 3
followers: 321
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46bc884db1d9373d5dabff8d0c36643d206b479277fd8de2beea75b399128d38
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87f7eed5-0235-4fe0-acf5-e99d0caef949.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87f7eed5-0235-4fe0-acf5-e99d0caef949.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87f7eed5-0235-4fe0-acf5-e99d0caef949
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46bc884db1d9373d5dabff8d0c36643d206b479277fd8de2beea75b399128d38","name":"David Dahl","registered_at":"2026-06-17T13:07:30Z","symbol":"NIM1404811","token_address":"0x28ba3dcf2a2cba08cea09159c5d20005bce8dcc9","type":"artist","uuid":"87f7eed5-0235-4fe0-acf5-e99d0caef949"}
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 0x46bc884db1d9373d5dabff8d0c36643d206b479277fd8de2beea75b399128d38. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87f7eed5-0235-4fe0-acf5-e99d0caef949.json and https://artists.proofprofile.net/proofs/artist/87f7eed5-0235-4fe0-acf5-e99d0caef949.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x46bc884db1d9373d5dabff8d0c36643d206b479277fd8de2beea75b399128d38","name":"David Dahl","registered_at":"2026-06-17T13:07:30Z","symbol":"NIM1404811","token_address":"0x28ba3dcf2a2cba08cea09159c5d20005bce8dcc9","type":"artist","uuid":"87f7eed5-0235-4fe0-acf5-e99d0caef949"}
album: Ocean
  type: MusicAlbum
  date published: 2015-12-04
  track: Ocean
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215173
    explicit: false
    by artist: David Dahl
    in album: Ocean
      type: MusicAlbum
      date published: 2015-12-04
    isrc code: SEBGA1500359
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:42:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfcfb7c1e54a8ece9f5608f043e0c1820d6ef919bec4348fe3abd1fc7a91204fb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBGA1500359
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:22:28Z
    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 0xfcfb7c1e54a8ece9f5608f043e0c1820d6ef919bec4348fe3abd1fc7a91204fb. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/SEBGA1500359.
      date published: 2026-07-18T16:22:28Z
    audio: Ocean
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.066
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.436
      additional property: Energy
        type: PropertyValue
        value: 0.212
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.847
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.406
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.516
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major