Lowreiro
type: MusicGroup
popularity: 5
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5a4e9632724725c9b4854bffbd01537399156e7c93cffe3d650b38c5769255f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953895
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f78f727-a32e-4b0b-a7a3-55644c0e01f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0f78f727-a32e-4b0b-a7a3-55644c0e01f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0f78f727-a32e-4b0b-a7a3-55644c0e01f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
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 0xf5a4e9632724725c9b4854bffbd01537399156e7c93cffe3d650b38c5769255f. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f78f727-a32e-4b0b-a7a3-55644c0e01f6.json and https://artists.proofprofile.net/proofs/artist/0f78f727-a32e-4b0b-a7a3-55644c0e01f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Calling your bluff
  type: MusicAlbum
  date published: 2022-11-01
  track: Calling your bluff
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191785
    explicit: false
    by artist: Lowreiro
    in album: Calling your bluff
      type: MusicAlbum
      date published: 2022-11-01
    isrc code: QZPYN2260013
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:16:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x194145f9979700b3c3da1783da3ee05b50c21f80a4c0285ff5bc5a206d894061
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPYN2260013
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x194145f9979700b3c3da1783da3ee05b50c21f80a4c0285ff5bc5a206d894061. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZPYN2260013.
      date published: 2026-07-03T08:56:35Z
    audio: Calling your bluff
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.052
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.616
      additional property: Energy
        type: PropertyValue
        value: 0.598
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.461
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.224
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.746
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major