C'SAR
type: MusicGroup
popularity: 17
followers: 375
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9eefa2380dd6a20b4ab8d2b08072b8107b4b0287979938367f684a8c9f32dd87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953605
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953605
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1020c094-abda-4baa-a4ee-d2b455a203c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1020c094-abda-4baa-a4ee-d2b455a203c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1020c094-abda-4baa-a4ee-d2b455a203c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:39:50Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eefa2380dd6a20b4ab8d2b08072b8107b4b0287979938367f684a8c9f32dd87. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1020c094-abda-4baa-a4ee-d2b455a203c7.json and https://artists.proofprofile.net/proofs/artist/1020c094-abda-4baa-a4ee-d2b455a203c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:39:50Z
album: Love Dust
  type: MusicAlbum
  date published: 2017-12-06
album: Love Dust
  type: MusicAlbum
  date published: 2017-12-06
album: Love Dust
  type: MusicAlbum
  date published: 2017-12-06
album: Sweet Sign
  type: MusicAlbum
  date published: 2018-06-27
album: Sweet Sign
  type: MusicAlbum
  date published: 2018-06-27
album: Sweet Sign
  type: MusicAlbum
  date published: 2018-06-27
album: MONROE
  type: MusicAlbum
  date published: 2019-05-06
album: Light Up
  type: MusicAlbum
  date published: 2019-05-16
album: Light Up
  type: MusicAlbum
  date published: 2019-05-16
album: Hold On
  type: MusicAlbum
  date published: 2021-04-23
album: Hold On
  type: MusicAlbum
  date published: 2021-04-23
  track: Hold On
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185137
    explicit: false
    by artist: C'SAR
    in album: Hold On
      type: MusicAlbum
      date published: 2021-04-23
    isrc code: FR2X42184032
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:50:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x07f570bd07f826a6b4abde6480362e5deafcaeb869018f4501c83197e2f4aef1
    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/FR2X42184032
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:57:46Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f570bd07f826a6b4abde6480362e5deafcaeb869018f4501c83197e2f4aef1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/FR2X42184032.
      date published: 2026-07-20T14:57:46Z
    audio: Hold On
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.013
      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: 0.734
      additional property: Energy
        type: PropertyValue
        value: 0.792
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.115
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.179
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.382
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Hold On
  type: MusicAlbum
  date published: 2021-04-23
album: Hold On
  type: MusicAlbum
  date published: 2021-04-23
album: Between Us
  type: MusicAlbum
  date published: 2021-10-15
album: Between Us
  type: MusicAlbum
  date published: 2021-10-15