SIXTH FLOOR
type: MusicGroup
popularity: 2
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6025d85379439fd2bee6b1f9b7a94c2d28a2f4b0ac80d3562f9e5038f7c89ab1
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/83fc2743-e12d-4056-86d1-14c3811e4b82.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/83fc2743-e12d-4056-86d1-14c3811e4b82.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83fc2743-e12d-4056-86d1-14c3811e4b82
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6025d85379439fd2bee6b1f9b7a94c2d28a2f4b0ac80d3562f9e5038f7c89ab1","name":"SIXTH FLOOR","registered_at":"2026-06-17T11:39:58Z","symbol":"NIM1384019","token_address":"0xc4b8bdb0252bc514999bc77b37e77090fc6f467c","type":"artist","uuid":"83fc2743-e12d-4056-86d1-14c3811e4b82"}
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 0x6025d85379439fd2bee6b1f9b7a94c2d28a2f4b0ac80d3562f9e5038f7c89ab1. 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/83fc2743-e12d-4056-86d1-14c3811e4b82.json and https://artists.proofprofile.net/proofs/artist/83fc2743-e12d-4056-86d1-14c3811e4b82.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x6025d85379439fd2bee6b1f9b7a94c2d28a2f4b0ac80d3562f9e5038f7c89ab1","name":"SIXTH FLOOR","registered_at":"2026-06-17T11:39:58Z","symbol":"NIM1384019","token_address":"0xc4b8bdb0252bc514999bc77b37e77090fc6f467c","type":"artist","uuid":"83fc2743-e12d-4056-86d1-14c3811e4b82"}
album: Rossetto
  type: MusicAlbum
  date published: 2025-03-21
  track: Rossetto
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238016
    explicit: true
    by artist: SIXTH FLOOR
    in album: Rossetto
      type: MusicAlbum
      date published: 2025-03-21
    isrc code: QZHNC2528336
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:42:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdb92100c4d132474787496138b620ae168117c31c25051a414c2c33f72217484
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959010
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959010
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2528336
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:45:24Z
    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 0xdb92100c4d132474787496138b620ae168117c31c25051a414c2c33f72217484. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:45:24Z), 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/QZHNC2528336.
      date published: 2026-07-21T15:45:24Z
    audio: Rossetto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.081
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.654
      additional property: Energy
        type: PropertyValue
        value: 0.434
      additional property: Speechiness
        type: PropertyValue
        value: 0.394
      additional property: Acousticness
        type: PropertyValue
        value: 0.673
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.015
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.328
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.141
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Io ci credo
  type: MusicAlbum
  date published: 2025-05-23
album: Quattro valvole
  type: MusicAlbum
  date published: 2025-08-01