Walter Areia
type: MusicGroup
genre: brazilian jazz
genre: indie jazz
popularity: 4
followers: 281
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0484ff39e8b1e6494557d7380e7a146e29291f7f895d2b4fc5e3ca25952bbf9c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954010
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954010
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33ba2ee6-468c-4bc7-ba65-cb3653f8c73d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33ba2ee6-468c-4bc7-ba65-cb3653f8c73d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33ba2ee6-468c-4bc7-ba65-cb3653f8c73d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:41:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0484ff39e8b1e6494557d7380e7a146e29291f7f895d2b4fc5e3ca25952bbf9c","name":"Walter Areia","registered_at":"2026-06-16T07:36:26Z","symbol":"NIM0982387","token_address":"0x249d272c4b4a082902f2cebc61114585865f9a0b","type":"artist","uuid":"33ba2ee6-468c-4bc7-ba65-cb3653f8c73d"}
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 0x0484ff39e8b1e6494557d7380e7a146e29291f7f895d2b4fc5e3ca25952bbf9c. Chain 2 (Bitcoin): anchored in block 954010 (2026-06-16T21:41:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33ba2ee6-468c-4bc7-ba65-cb3653f8c73d.json and https://artists.proofprofile.net/proofs/artist/33ba2ee6-468c-4bc7-ba65-cb3653f8c73d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:41:36Z
  text: {"copyright_id":"0x0484ff39e8b1e6494557d7380e7a146e29291f7f895d2b4fc5e3ca25952bbf9c","name":"Walter Areia","registered_at":"2026-06-16T07:36:26Z","symbol":"NIM0982387","token_address":"0x249d272c4b4a082902f2cebc61114585865f9a0b","type":"artist","uuid":"33ba2ee6-468c-4bc7-ba65-cb3653f8c73d"}
album: Areia e Grupo de Música Aberta - Para Perdedores
  type: MusicAlbum
  date published: 2011-08-13
album: Hora de Ir
  type: MusicAlbum
  date published: 2014
album: Treze Cordas
  type: MusicAlbum
  date published: 2016-05-22
  track: Sarara
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231670
    explicit: false
    by artist: Walter Areia
    in album: Treze Cordas
      type: MusicAlbum
      date published: 2016-05-22
    genre: brazilian jazz
    genre: indie jazz
    isrc code: CH6542077567
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T02:06:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe7389c03752a7e623e22ec8e821f0d6a11258b32050af92174736638ece7dbe4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH6542077567
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xe7389c03752a7e623e22ec8e821f0d6a11258b32050af92174736638ece7dbe4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH6542077567.
      date published: 2026-07-05T10:01:46Z
    audio: Sarara
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.559
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.525
      additional property: Energy
        type: PropertyValue
        value: 0.463
      additional property: Speechiness
        type: PropertyValue
        value: 0.087
      additional property: Acousticness
        type: PropertyValue
        value: 0.422
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.868
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.897
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.396
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ensaio Sobre a Distância
  type: MusicAlbum
  date published: 2020-08-13
album: Sossega!
  type: MusicAlbum
  date published: 2021-05-23
album: Sol e o Girassol
  type: MusicAlbum
  date published: 2023-01-06
album: O Som do Seu Sorriso
  type: MusicAlbum
  date published: 2023-05-28
album: Teus Pés
  type: MusicAlbum
  date published: 2023-08-28
album: Sem Paredes
  type: MusicAlbum
  date published: 2024-03-29
album: A Décima Lua
  type: MusicAlbum
  date published: 2024-08-22
album: Alfama (Live)
  type: MusicAlbum
  date published: 2025-03-09
album: Bibi na Fontainha
  type: MusicAlbum
  date published: 2025-07-18
track: Lisboa Lisboa - Ao Vivo No Coliseu
  type: MusicRecording
  duration: PT7M7S
  duration ms: 427000
  explicit: false
  by artist: Rua das Pretas
  by artist: Pierre Aderne
  by artist: Karla da Silva
  by artist: Dandara Modesto
  by artist: Joana Amendoeira
  by artist: Paulo de Carvalho
  by artist: Nilson Dourado
  by artist: Walter Areia
  by artist: Rui Poço
  by artist: Canequinha
  in album: Lisboa Lisboa - Ao Vivo No Coliseu
    type: MusicAlbum
    date published: 2023-02-01
  genre: bossa-nova
  genre: fado
  genre: brazilian-jazz
  isrc code: PT2HF2000112
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:36:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa7dcf0bac2ecddf3fa452eef055d261543a980a31bfc7e734e0bd73beeff2d5c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Lisboa Lisboa - Ao Vivo No Coliseu

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PT2HF2000112

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dcf0bac2ecddf3fa452eef055d261543a980a31bfc7e734e0bd73beeff2d5c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PT2HF2000112.
date published: 2026-07-08T03:20:19Z

Lisboa Lisboa - Ao Vivo No Coliseu
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 121.157
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.6
additional property: Energy
  type: PropertyValue
  value: 0.191
additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.878
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.605
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.229
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.262
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major