Pedro Madeira
type: MusicGroup
genre: nova mpb
description: Pedro Madeira (born 11 November 1992 in Vendas Novas, Portugal) is a Portuguese singer. He represented Portugal at the Junior Eurovision Song Contest 2006 with the song "Deixa-me sentir". Discography
popularity: 5
followers: 338
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55a42e765648df1db8203deb173876dcf94d51d3003ab0c77c4cd45e0aaf4125
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a49931e1-5bd9-4460-b94d-0bdac1e760ee.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a49931e1-5bd9-4460-b94d-0bdac1e760ee
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x55a42e765648df1db8203deb173876dcf94d51d3003ab0c77c4cd45e0aaf4125. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a49931e1-5bd9-4460-b94d-0bdac1e760ee.json and https://artists.proofprofile.net/proofs/artist/a49931e1-5bd9-4460-b94d-0bdac1e760ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x55a42e765648df1db8203deb173876dcf94d51d3003ab0c77c4cd45e0aaf4125","name":"Pedro Madeira","registered_at":"2026-06-20T07:22:16Z","symbol":"NIM1552105","token_address":"0xda518bc61f06f547a63a8abbd5fb2fc904402dec","type":"artist","uuid":"a49931e1-5bd9-4460-b94d-0bdac1e760ee"}
album: Chuva
  type: MusicAlbum
  date published: 2022-11-11
album: Pássaros
  type: MusicAlbum
  date published: 2023-03-03
album: Bem Que Se Quis
  type: MusicAlbum
  date published: 2023-06-02
album: Só Mais Um Preto Que Morreu
  type: MusicAlbum
  date published: 2024-09-27
album: SEMIDEUS DOS SONHOS
  type: MusicAlbum
  date published: 2024-10-18
  track: PETIÇÕES
    type: MusicRecording
    duration: PT4M9S
    duration ms: 249299
    explicit: false
    by artist: Pedro Madeira
    in album: SEMIDEUS DOS SONHOS
      type: MusicAlbum
      date published: 2024-10-18
    genre: nova mpb
    isrc code: BK4DA2451846
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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    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/BK4DA2451846
    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 0x4e5d1cb80761fcab618b15bbe80a39964b81004ebc55df042747f8c64afa09c6. 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/BK4DA2451846.
      date published: 2026-07-03T21:18:05Z
    audio: PETIÇÕES
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.102
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.394
      additional property: Energy
        type: PropertyValue
        value: 0.44
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.371
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.197
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.985
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor