Derek F. Smith
type: MusicGroup
popularity: 14
followers: 312
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f742974ad90f7f8aea5031b15ea1ac5cb055c04a1a94ac7f62df812e63b78c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39da5eba-6796-4692-90fc-cc37024b908b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39da5eba-6796-4692-90fc-cc37024b908b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39da5eba-6796-4692-90fc-cc37024b908b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f742974ad90f7f8aea5031b15ea1ac5cb055c04a1a94ac7f62df812e63b78c2","name":"Derek F. Smith","registered_at":"2026-06-14T10:29:55Z","symbol":"NIM0424742","token_address":"0x387bbc0259ec9bc6bcbfbc858eb250b7fa08d012","type":"artist","uuid":"39da5eba-6796-4692-90fc-cc37024b908b"}
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 0x3f742974ad90f7f8aea5031b15ea1ac5cb055c04a1a94ac7f62df812e63b78c2. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39da5eba-6796-4692-90fc-cc37024b908b.json and https://artists.proofprofile.net/proofs/artist/39da5eba-6796-4692-90fc-cc37024b908b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x3f742974ad90f7f8aea5031b15ea1ac5cb055c04a1a94ac7f62df812e63b78c2","name":"Derek F. Smith","registered_at":"2026-06-14T10:29:55Z","symbol":"NIM0424742","token_address":"0x387bbc0259ec9bc6bcbfbc858eb250b7fa08d012","type":"artist","uuid":"39da5eba-6796-4692-90fc-cc37024b908b"}
album: We Will Go On
  type: MusicAlbum
  date published: 2020-04-12
album: The Live Set
  type: MusicAlbum
  date published: 2020-04-20
  track: Rescue Me - Live at the Bond Store
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185913
    explicit: false
    by artist: Derek F. Smith
    in album: The Live Set
      type: MusicAlbum
      date published: 2020-04-20
    isrc code: QZES52065335
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T04:30:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8964ed8e1677400e126f1052411141cbdc20f882cb065c01c5f37f0903577f25
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958825
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958825
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52065335
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:31:54Z
    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 0x8964ed8e1677400e126f1052411141cbdc20f882cb065c01c5f37f0903577f25. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:31:54Z), 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/QZES52065335.
      date published: 2026-07-20T07:31:54Z
    audio: Rescue Me - Live at the Bond Store
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.028
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.558
      additional property: Energy
        type: PropertyValue
        value: 0.2
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.766
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.737
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.315
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.68
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major