Sammie Dandauta
type: MusicGroup
popularity: 3
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22ddafcfa478aa299c1c7a60a0383dc608cfe30d1e3a63ac1a1b430ef5458299
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d37097b7-25ad-46dd-902d-3bfb47fe3002.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d37097b7-25ad-46dd-902d-3bfb47fe3002.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d37097b7-25ad-46dd-902d-3bfb47fe3002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22ddafcfa478aa299c1c7a60a0383dc608cfe30d1e3a63ac1a1b430ef5458299","name":"Sammie Dandauta","registered_at":"2026-06-21T02:12:31Z","symbol":"NIM1787444","token_address":"0x577b25bf1bbe30289862feb6557040b5810ad263","type":"artist","uuid":"d37097b7-25ad-46dd-902d-3bfb47fe3002"}
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 0x22ddafcfa478aa299c1c7a60a0383dc608cfe30d1e3a63ac1a1b430ef5458299. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d37097b7-25ad-46dd-902d-3bfb47fe3002.json and https://artists.proofprofile.net/proofs/artist/d37097b7-25ad-46dd-902d-3bfb47fe3002.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x22ddafcfa478aa299c1c7a60a0383dc608cfe30d1e3a63ac1a1b430ef5458299","name":"Sammie Dandauta","registered_at":"2026-06-21T02:12:31Z","symbol":"NIM1787444","token_address":"0x577b25bf1bbe30289862feb6557040b5810ad263","type":"artist","uuid":"d37097b7-25ad-46dd-902d-3bfb47fe3002"}
album: Shungu
  type: MusicAlbum
  date published: 2023-11-08
album: Ndoringe Nzira
  type: MusicAlbum
  date published: 2024-02-01
  track: Ukama (Teererai)
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265560
    explicit: false
    by artist: Sammie Dandauta
    in album: Ndoringe Nzira
      type: MusicAlbum
      date published: 2024-02-01
    isrc code: QZZ7P2467374
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:16:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x036657a44a201fb659ce2acfd407322118ab44e5fc37dc0dc03382af5bf1cab0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956894
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956894
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7P2467374
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:53:57Z
    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 0x036657a44a201fb659ce2acfd407322118ab44e5fc37dc0dc03382af5bf1cab0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZZ7P2467374.
      date published: 2026-07-06T07:53:57Z
    audio: Ukama (Teererai)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.011
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.868
      additional property: Energy
        type: PropertyValue
        value: 0.762
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.268
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.808
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.151
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Muruvazhe
  type: MusicAlbum
  date published: 2025-08-10