Os d'Abaixo
type: MusicGroup
genre: celtic
genre: traditional music
popularity: 9
followers: 1747
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3050173baf980cb8c6d8dd94b202468b74030ca059e2fdea519a03873c5aeec8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f052af1d-f679-4c54-b467-6359f6e9fed5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f052af1d-f679-4c54-b467-6359f6e9fed5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f052af1d-f679-4c54-b467-6359f6e9fed5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3050173baf980cb8c6d8dd94b202468b74030ca059e2fdea519a03873c5aeec8","name":"Os d'Abaixo","registered_at":"2026-06-21T18:52:40Z","symbol":"NIM1927919","token_address":"0x712fa2c576545770ea522b510f6ed08e8f729ab1","type":"artist","uuid":"f052af1d-f679-4c54-b467-6359f6e9fed5"}
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 0x3050173baf980cb8c6d8dd94b202468b74030ca059e2fdea519a03873c5aeec8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f052af1d-f679-4c54-b467-6359f6e9fed5.json and https://artists.proofprofile.net/proofs/artist/f052af1d-f679-4c54-b467-6359f6e9fed5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x3050173baf980cb8c6d8dd94b202468b74030ca059e2fdea519a03873c5aeec8","name":"Os d'Abaixo","registered_at":"2026-06-21T18:52:40Z","symbol":"NIM1927919","token_address":"0x712fa2c576545770ea522b510f6ed08e8f729ab1","type":"artist","uuid":"f052af1d-f679-4c54-b467-6359f6e9fed5"}
album: Ao Vivo en Lorient
  type: MusicAlbum
  date published: 2014-04-26
album: Quixera Ser Dos Paxaros
  type: MusicAlbum
  date published: 2017-05-19
  track: Espadelada de Solbeira
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211840
    explicit: false
    by artist: Os d'Abaixo
    in album: Quixera Ser Dos Paxaros
      type: MusicAlbum
      date published: 2017-05-19
    genre: celtic
    genre: traditional music
    isrc code: USCGJ1734176
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:30:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa896b114b2d17d36b51cfa8360e5a6b55a755a27905deffb112867bb5db3a88b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958897
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958897
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1734176
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:33:12Z
    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 0xa896b114b2d17d36b51cfa8360e5a6b55a755a27905deffb112867bb5db3a88b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:33:12Z), 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/USCGJ1734176.
      date published: 2026-07-20T16:33:12Z
    audio: Espadelada de Solbeira
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 69.077
      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: 0.281
      additional property: Energy
        type: PropertyValue
        value: 0.599
      additional property: Speechiness
        type: PropertyValue
        value: 0.177
      additional property: Acousticness
        type: PropertyValue
        value: 0.693
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.059
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.762
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.634
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Maneo de Montemaior
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203000
    explicit: false
    by artist: Os d'Abaixo
    in album: Quixera Ser Dos Paxaros
      type: MusicAlbum
      date published: 2017-05-19
    genre: celtic
    genre: traditional music
    isrc code: USCGJ1734183
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:26:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0d619bc3ef7a25bf0fe70e136a893bad8ec42e0d9ab47051a53e123d4801633e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1734183
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x0d619bc3ef7a25bf0fe70e136a893bad8ec42e0d9ab47051a53e123d4801633e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGJ1734183.
      date published: 2026-07-05T18:48:28Z
    audio: Maneo de Montemaior
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.934
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.591
      additional property: Energy
        type: PropertyValue
        value: 0.585
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.561
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Muiñeira do Verdellinho
album: Carvalheirinha escura
album: Somos A Pedra
album: Muinheira Partilhada

Liveness
type: PropertyValue
value: 0.089

Valence (Positivity)
type: PropertyValue
value: 0.666

Loudness (dB)
type: PropertyValue
value: -8.495

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

Muiñeira do Verdellinho
type: MusicAlbum
date published: 2021-07-25

Carvalheirinha escura
type: MusicAlbum
date published: 2021-10-01

Somos A Pedra
type: MusicAlbum
date published: 2021-12-17

Muinheira Partilhada
type: MusicAlbum
date published: 2025-08-19