União Marginal
type: MusicGroup
popularity: 4
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd6963abce2e6542ffb1b931789e35fdff0edc1ac13ba3eb775c66ad258fbc73
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd6963abce2e6542ffb1b931789e35fdff0edc1ac13ba3eb775c66ad258fbc73","name":"União Marginal","registered_at":"2026-06-17T12:54:14Z","symbol":"NIM1401647","token_address":"0xeb2af6720b320461806e8275b6bfaa893886af3c","type":"artist","uuid":"8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7"}
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 0xbd6963abce2e6542ffb1b931789e35fdff0edc1ac13ba3eb775c66ad258fbc73. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7.json and https://artists.proofprofile.net/proofs/artist/8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xbd6963abce2e6542ffb1b931789e35fdff0edc1ac13ba3eb775c66ad258fbc73","name":"União Marginal","registered_at":"2026-06-17T12:54:14Z","symbol":"NIM1401647","token_address":"0xeb2af6720b320461806e8275b6bfaa893886af3c","type":"artist","uuid":"8777e5c1-b5f8-4b6a-90f7-a11cdf756ca7"}
album: Conflitos
  type: MusicAlbum
  date published: 2022-03-15
  track: Conflitos
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282644
    explicit: true
    by artist: União Marginal
    in album: Conflitos
      type: MusicAlbum
      date published: 2022-03-15
    isrc code: QZGLS2278145
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:11:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x22541eaba0b233984393e46c2751a0f5520bce71ed158f80a7318fbb3a19106c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2278145
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x22541eaba0b233984393e46c2751a0f5520bce71ed158f80a7318fbb3a19106c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLS2278145.
      date published: 2026-07-03T21:18:05Z
    audio: Conflitos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.8
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.4
      additional property: Energy
        type: PropertyValue
        value: 0.487
      additional property: Speechiness
        type: PropertyValue
        value: 0.38
      additional property: Acousticness
        type: PropertyValue
        value: 0.138
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.313
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.254
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Introspecção
  type: MusicAlbum
  date published: 2022-07-25
album: 42G
  type: MusicAlbum
  date published: 2022-11-22
album: Fazendo Chover
  type: MusicAlbum
  date published: 2022-12-10
album: Wake Up
  type: MusicAlbum
  date published: 2022-12-20