Sammy Exchange
type: MusicGroup
popularity: 2
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d8df16428395e5d186b00aa0d0c188b45894dc124d0a98d4c6475bfd929dd99
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cf0ad86-6e26-49f5-82e4-f8e729dc17b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cf0ad86-6e26-49f5-82e4-f8e729dc17b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9cf0ad86-6e26-49f5-82e4-f8e729dc17b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d8df16428395e5d186b00aa0d0c188b45894dc124d0a98d4c6475bfd929dd99","name":"Sammy Exchange","registered_at":"2026-06-20T04:14:31Z","symbol":"NIM1509164","token_address":"0xf9b2c5ca7c90196630773190d358649ba9c15b62","type":"artist","uuid":"9cf0ad86-6e26-49f5-82e4-f8e729dc17b4"}
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 0x2d8df16428395e5d186b00aa0d0c188b45894dc124d0a98d4c6475bfd929dd99. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cf0ad86-6e26-49f5-82e4-f8e729dc17b4.json and https://artists.proofprofile.net/proofs/artist/9cf0ad86-6e26-49f5-82e4-f8e729dc17b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x2d8df16428395e5d186b00aa0d0c188b45894dc124d0a98d4c6475bfd929dd99","name":"Sammy Exchange","registered_at":"2026-06-20T04:14:31Z","symbol":"NIM1509164","token_address":"0xf9b2c5ca7c90196630773190d358649ba9c15b62","type":"artist","uuid":"9cf0ad86-6e26-49f5-82e4-f8e729dc17b4"}
album: Black Sheep (LastB)
  type: MusicAlbum
  date published: 2025-04-19
album: Pure Calculation
  type: MusicAlbum
  date published: 2025-05-08
album: Àkwá Àrírí
  type: MusicAlbum
  date published: 2025-05-23
album: From Signal To Crypto
  type: MusicAlbum
  date published: 2025-06-19
  track: From Signal To Crypto
    type: MusicRecording
    duration: PT1M46S
    duration ms: 106135
    explicit: true
    by artist: Sammy Exchange
    in album: From Signal To Crypto
      type: MusicAlbum
      date published: 2025-06-19
    isrc code: QZTB72529816
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:43:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8cad552927f66efe28ecc55a85eff4c361f657756f72c9e38b89d3339bca10f2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72529816
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:45:07Z
    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 0x8cad552927f66efe28ecc55a85eff4c361f657756f72c9e38b89d3339bca10f2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:45:07Z), 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/QZTB72529816.
      date published: 2026-07-20T21:45:07Z
    audio: From Signal To Crypto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.981
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.585
      additional property: Energy
        type: PropertyValue
        value: 0.684
      additional property: Speechiness
        type: PropertyValue
        value: 0.271
      additional property: Acousticness
        type: PropertyValue
        value: 0.592
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.668
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.74
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Only The Strong Survive
  type: MusicAlbum
  date published: 2025-07-11
album: I Choose Me
  type: MusicAlbum
  date published: 2025-07-23
album: Out The Hood
  type: MusicAlbum
  date published: 2025-09-13
album: Forever Ready
  type: MusicAlbum
  date published: 2025-10-25