RZ
type: MusicGroup
description: Rz or RZ can stand for: People Friederike Schwarz, Czech composer and journalist who used rz as a pseudonym) Robin Zander, American rock singer with Cheap Trick Richard Zednik, Slovak profession
popularity: 17
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89218c88ce6e617951f393b9f3714b4c9367623d9203efe7dd6bc603ad996e7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953710
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953710
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dffbc2e-f6f4-4392-98b9-370691d01219.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7dffbc2e-f6f4-4392-98b9-370691d01219.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7dffbc2e-f6f4-4392-98b9-370691d01219
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:32:42Z
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 0x89218c88ce6e617951f393b9f3714b4c9367623d9203efe7dd6bc603ad996e7f. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dffbc2e-f6f4-4392-98b9-370691d01219.json and https://artists.proofprofile.net/proofs/artist/7dffbc2e-f6f4-4392-98b9-370691d01219.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:32:42Z
album: DemonSquad
  type: MusicAlbum
  date published: 2024-08-26
album: La Demon'Squad
  type: MusicAlbum
  date published: 2024-09-07
album: Nadim (Remix)
  type: MusicAlbum
  date published: 2024-09-11
album: HOLY 2
  type: MusicAlbum
  date published: 2024-09-26
album: Arezki et Ramzan
  type: MusicAlbum
  date published: 2024-10-11
album: Buisson Rond
  type: MusicAlbum
  date published: 2024-11-04
album: Buisson Rond (Remix French)
  type: MusicAlbum
  date published: 2024-11-13
album: Arezki, Ramzan, Adam
  type: MusicAlbum
  date published: 2024-12-04
album: Ramzan et Adam
  type: MusicAlbum
  date published: 2025-01-15
album: Les CMEs (Version 2024-2025)
  type: MusicAlbum
  date published: 2025-02-09
album: Les CMEs
  type: MusicAlbum
  date published: 2025-04-14
  track: Les CMEs
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231840
    explicit: false
    by artist: RZ
    in album: Les CMEs
      type: MusicAlbum
      date published: 2025-04-14
    isrc code: FXQ022503104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:46:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3454c8fdaaf3afefea7cec3c5cbd8f2b73522724ac2a32d191d1f842d232133b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXQ022503104
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:27:28Z
    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 0x3454c8fdaaf3afefea7cec3c5cbd8f2b73522724ac2a32d191d1f842d232133b. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/FXQ022503104.
      date published: 2026-07-12T23:27:28Z
    audio: Les CMEs
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.971
      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: 0.763
      additional property: Energy
        type: PropertyValue
        value: 0.465
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0.317
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.007
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.186
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.2
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor