GRUPO COISA CERTA
type: MusicGroup
genre: pagode
popularity: 3
followers: 244
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd582fd860cd486e3731914caddbe4e4cf1d79a889dba099e8f20f6e355e032ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94b1997f-8c81-4cdc-a203-9e9ab312c26c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94b1997f-8c81-4cdc-a203-9e9ab312c26c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/94b1997f-8c81-4cdc-a203-9e9ab312c26c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd582fd860cd486e3731914caddbe4e4cf1d79a889dba099e8f20f6e355e032ff","name":"GRUPO COISA CERTA","registered_at":"2026-06-17T17:31:34Z","symbol":"NIM1467854","token_address":"0x24498f3f314d499040423385e1b36174142b8a1f","type":"artist","uuid":"94b1997f-8c81-4cdc-a203-9e9ab312c26c"}
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 0xd582fd860cd486e3731914caddbe4e4cf1d79a889dba099e8f20f6e355e032ff. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94b1997f-8c81-4cdc-a203-9e9ab312c26c.json and https://artists.proofprofile.net/proofs/artist/94b1997f-8c81-4cdc-a203-9e9ab312c26c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xd582fd860cd486e3731914caddbe4e4cf1d79a889dba099e8f20f6e355e032ff","name":"GRUPO COISA CERTA","registered_at":"2026-06-17T17:31:34Z","symbol":"NIM1467854","token_address":"0x24498f3f314d499040423385e1b36174142b8a1f","type":"artist","uuid":"94b1997f-8c81-4cdc-a203-9e9ab312c26c"}
album: Nasci pra Te Amar
  type: MusicAlbum
  date published: 2019-04-30
  track: Nasci pra Te Amar
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199893
    explicit: true
    by artist: GRUPO COISA CERTA
    in album: Nasci pra Te Amar
      type: MusicAlbum
      date published: 2019-04-30
    genre: pagode
    isrc code: QZGLS1928798
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T02:18:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb57de3a4dd6dcef677563bad874c09990c63625188dfd63fb29330f5eab16823
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS1928798
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xb57de3a4dd6dcef677563bad874c09990c63625188dfd63fb29330f5eab16823. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZGLS1928798.
      date published: 2026-07-04T10:04:33Z
    audio: Nasci pra Te Amar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 153.922
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.754
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.275
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.204
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.677
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.919
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Só um Lance
  type: MusicAlbum
  date published: 2019-04-30