MC Lazaro
type: MusicGroup
popularity: 4
followers: 197
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8427e60077ff3aedc5c0e90cdd3b4d3b0bd6b959f3d1af0e4971dbc494c11c3f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb71f04b-2a1e-4b94-b4fe-2063a74df136.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb71f04b-2a1e-4b94-b4fe-2063a74df136.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb71f04b-2a1e-4b94-b4fe-2063a74df136
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8427e60077ff3aedc5c0e90cdd3b4d3b0bd6b959f3d1af0e4971dbc494c11c3f","name":"MC Lazaro","registered_at":"2026-06-20T16:57:23Z","symbol":"NIM1660082","token_address":"0xa7dd4929526d04ec605aefbbb409a207fadf6745","type":"artist","uuid":"bb71f04b-2a1e-4b94-b4fe-2063a74df136"}
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 0x8427e60077ff3aedc5c0e90cdd3b4d3b0bd6b959f3d1af0e4971dbc494c11c3f. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb71f04b-2a1e-4b94-b4fe-2063a74df136.json and https://artists.proofprofile.net/proofs/artist/bb71f04b-2a1e-4b94-b4fe-2063a74df136.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x8427e60077ff3aedc5c0e90cdd3b4d3b0bd6b959f3d1af0e4971dbc494c11c3f","name":"MC Lazaro","registered_at":"2026-06-20T16:57:23Z","symbol":"NIM1660082","token_address":"0xa7dd4929526d04ec605aefbbb409a207fadf6745","type":"artist","uuid":"bb71f04b-2a1e-4b94-b4fe-2063a74df136"}
album: Vida Mudou
  type: MusicAlbum
  date published: 2022-06-09
track: Quem Tava Lá

Quem Tava Lá
type: MusicRecording
duration: PT2M34S
duration ms: 154137
explicit: false
by artist: MC Lazaro
by artist: LaMelo Beats
in album: Quem Tava Lá
  type: MusicAlbum
  date published: 2021-07-07
isrc code: QZHZ62139351
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T15:02:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x744e74a5580aafb3bf77cdaaa26c802ba2c7fed62f89c767892dcef15f2fb8e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ62139351
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744e74a5580aafb3bf77cdaaa26c802ba2c7fed62f89c767892dcef15f2fb8e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHZ62139351.
  date published: 2026-07-02T05:09:12Z
audio: Quem Tava Lá
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.935
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.831
  additional property: Energy
    type: PropertyValue
    value: 0.55
  additional property: Speechiness
    type: PropertyValue
    value: 0.227
  additional property: Acousticness
    type: PropertyValue
    value: 0.15
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.369
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.291
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor