VELHA GUARDA DA PORTELA
type: MusicGroup
popularity: 4
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71dab13584a8939eeb598a83498e779fb1b319ca06b1c05e16077a72305a99f7
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/958a6202-970a-4ff9-a3eb-e329db4811cd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/958a6202-970a-4ff9-a3eb-e329db4811cd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/958a6202-970a-4ff9-a3eb-e329db4811cd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x71dab13584a8939eeb598a83498e779fb1b319ca06b1c05e16077a72305a99f7","name":"VELHA GUARDA DA PORTELA","registered_at":"2026-06-17T17:52:54Z","symbol":"NIM1472958","token_address":"0xc6321843b2caab25ee9ab4b2e522e208f1b4b298","type":"artist","uuid":"958a6202-970a-4ff9-a3eb-e329db4811cd"}
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 0x71dab13584a8939eeb598a83498e779fb1b319ca06b1c05e16077a72305a99f7. 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/958a6202-970a-4ff9-a3eb-e329db4811cd.json and https://artists.proofprofile.net/proofs/artist/958a6202-970a-4ff9-a3eb-e329db4811cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x71dab13584a8939eeb598a83498e779fb1b319ca06b1c05e16077a72305a99f7","name":"VELHA GUARDA DA PORTELA","registered_at":"2026-06-17T17:52:54Z","symbol":"NIM1472958","token_address":"0xc6321843b2caab25ee9ab4b2e522e208f1b4b298","type":"artist","uuid":"958a6202-970a-4ff9-a3eb-e329db4811cd"}
track: Camarão Que Dorme a Onda Leva
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168948
  explicit: false
  by artist: Zeca Pagodinho
  by artist: Dudu Nobre
  by artist: Mumuzinho
  by artist: Djavan
  by artist: Sombrinha
  by artist: Arlindo Cruz
  by artist: Maria Rita
  by artist: Péricles
  by artist: Alcione
  by artist: Emicida
  by artist: Diogo Nogueira
  by artist: Frejat
  by artist: Monarco
  by artist: VELHA GUARDA DA PORTELA
  by artist: Almir Guineto
  by artist: Rildo Hora
  by artist: Roberta Sá
  by artist: Lenine
  by artist: Beth Carvalho
  by artist: Marcelo D2
  by artist: Jorge Ben Jor
  by artist: Nilze Carvalho
  by artist: Gabrielzinho Do Irajá
  by artist: Mariene De Castro
  by artist: Martinho Da Vila
  by artist: Gilberto Gil
  in album: Sambabook Zeca Pagodinho, Vol. 2
    type: MusicAlbum
    date published: 2014-03-20
  genre: pagode
  genre: samba
  isrc code: BRUKM1400027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-01T15:23:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8eec0dbf1c94ad1053a364c3ef124867d61018d2a366e32bb28b9e62e6581128
  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/BRUKM1400027
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x8eec0dbf1c94ad1053a364c3ef124867d61018d2a366e32bb28b9e62e6581128. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRUKM1400027.
    date published: 2026-07-02T03:55:08Z
  audio: Camarão Que Dorme a Onda Leva
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.324
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.723
    additional property: Energy
      type: PropertyValue
      value: 0.694
    additional property: Speechiness
      type: PropertyValue
      value: 0.08
    additional property: Acousticness
      type: PropertyValue
      value: 0.313
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.052
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.739
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.794
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major