De Sammies
type: MusicGroup
popularity: 9
followers: 146
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9cdec71aa2a626789331826e6e5c8b2f3ea9402f911825496bc20251bd57806
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/add86847-6ce5-4d30-919d-72c44b245193.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/add86847-6ce5-4d30-919d-72c44b245193.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/add86847-6ce5-4d30-919d-72c44b245193
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9cdec71aa2a626789331826e6e5c8b2f3ea9402f911825496bc20251bd57806","name":"De Sammies","registered_at":"2026-06-20T10:48:13Z","symbol":"NIM1595721","token_address":"0x8e60f3f9819472f7e08dd2c5bc59e43d4d5e2579","type":"artist","uuid":"add86847-6ce5-4d30-919d-72c44b245193"}
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 0xb9cdec71aa2a626789331826e6e5c8b2f3ea9402f911825496bc20251bd57806. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/add86847-6ce5-4d30-919d-72c44b245193.json and https://artists.proofprofile.net/proofs/artist/add86847-6ce5-4d30-919d-72c44b245193.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0xb9cdec71aa2a626789331826e6e5c8b2f3ea9402f911825496bc20251bd57806","name":"De Sammies","registered_at":"2026-06-20T10:48:13Z","symbol":"NIM1595721","token_address":"0x8e60f3f9819472f7e08dd2c5bc59e43d4d5e2579","type":"artist","uuid":"add86847-6ce5-4d30-919d-72c44b245193"}
album: Un Pracht!!!!
  type: MusicAlbum
  date published: 1972
album: WEL!!!!
  type: MusicAlbum
  date published: 2019
album: Stuimig!!!!
  type: MusicAlbum
  date published: 2025-07-01
  track: Stuimig!!!!
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175263
    explicit: false
    by artist: De Sammies
    in album: Stuimig!!!!
      type: MusicAlbum
      date published: 2025-07-01
    isrc code: NLL052500004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xff3c22ae3f0835acbd430c6c1e313a8a28e2eb52c06fba37dc6f4714a98217cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958897
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLL052500004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:23:18Z
    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 0xff3c22ae3f0835acbd430c6c1e313a8a28e2eb52c06fba37dc6f4714a98217cb. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:23:18Z), 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/NLL052500004.
      date published: 2026-07-20T16:23:18Z
    audio: Stuimig!!!!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.952
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.629
      additional property: Energy
        type: PropertyValue
        value: 0.822
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.561
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.159
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.869
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.775
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major