Rebus
type: MusicGroup
description: thumb|A rebus-style "escort card" from around 1865, to be read as "May I see you home my dear?" thumb|A German rebus, circa 1620 A rebus ( ) is a puzzle device that combines the use of illustrated pi
popularity: 8
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x739441f7b1e926b0414c29b4cfc356ebb000006993ea652184f0d5446c5a800b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52a2fe14-21b1-4137-9c29-1c3114368156.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52a2fe14-21b1-4137-9c29-1c3114368156.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/52a2fe14-21b1-4137-9c29-1c3114368156
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 0x739441f7b1e926b0414c29b4cfc356ebb000006993ea652184f0d5446c5a800b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52a2fe14-21b1-4137-9c29-1c3114368156.json and https://artists.proofprofile.net/proofs/artist/52a2fe14-21b1-4137-9c29-1c3114368156.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Lettera 3 Il conte di Montecristo
  type: MusicAlbum
  date published: 2025-06-10
album: Lettera 2 Sotto Scacco
  type: MusicAlbum
  date published: 2025-06-10
album: Lettera 1 Primo Nemico
  type: MusicAlbum
  date published: 2025-06-10
album: Lacrime di verità
  type: MusicAlbum
  date published: 2025-06-12
album: Legionario
  type: MusicAlbum
  date published: 2025-07-16
  track: Legionario
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145588
    explicit: false
    by artist: Rebus
    in album: Legionario
      type: MusicAlbum
      date published: 2025-07-16
    isrc code: QZWFG2556823
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T06:15:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb9f04eda67330c79e41d1ac86e22794ee6ae7b9954f00568e2a0ef75eab1d001
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958110
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958110
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFG2556823
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T06:57:12Z
    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 0xb9f04eda67330c79e41d1ac86e22794ee6ae7b9954f00568e2a0ef75eab1d001. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZWFG2556823.
      date published: 2026-07-15T06:57:12Z
    audio: Legionario
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.989
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.744
      additional property: Energy
        type: PropertyValue
        value: 0.661
      additional property: Speechiness
        type: PropertyValue
        value: 0.154
      additional property: Acousticness
        type: PropertyValue
        value: 0.049
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.388
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.419
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.969
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major