ÄSTRA
type: MusicGroup
popularity: 4
followers: 475
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c9a552063aed7353f232f1373442ece5a8b99d22f2713d4bdf46dfd641962d1
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/86a63da9-5e27-4ec1-823f-784a10d64c7f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86a63da9-5e27-4ec1-823f-784a10d64c7f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/86a63da9-5e27-4ec1-823f-784a10d64c7f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c9a552063aed7353f232f1373442ece5a8b99d22f2713d4bdf46dfd641962d1","name":"ÄSTRA","registered_at":"2026-06-17T12:34:27Z","symbol":"NIM1397013","token_address":"0xb93934095c282c17dfee9c533cc5e8acf114585f","type":"artist","uuid":"86a63da9-5e27-4ec1-823f-784a10d64c7f"}
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 0x7c9a552063aed7353f232f1373442ece5a8b99d22f2713d4bdf46dfd641962d1. 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/86a63da9-5e27-4ec1-823f-784a10d64c7f.json and https://artists.proofprofile.net/proofs/artist/86a63da9-5e27-4ec1-823f-784a10d64c7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x7c9a552063aed7353f232f1373442ece5a8b99d22f2713d4bdf46dfd641962d1","name":"ÄSTRA","registered_at":"2026-06-17T12:34:27Z","symbol":"NIM1397013","token_address":"0xb93934095c282c17dfee9c533cc5e8acf114585f","type":"artist","uuid":"86a63da9-5e27-4ec1-823f-784a10d64c7f"}
album: Fake News
  type: MusicAlbum
  date published: 2021-02-26
album: Fake News
  type: MusicAlbum
  date published: 2021-02-26
album: Water
  type: MusicAlbum
  date published: 2021-02-26
album: Water
  type: MusicAlbum
  date published: 2021-02-26
album: Fire
  type: MusicAlbum
  date published: 2021-05-25
album: De la Piel para Adentro
  type: MusicAlbum
  date published: 2021-05-25
  track: De la Piel para Adentro
    type: MusicRecording
    duration: PT4M21S
    duration ms: 261120
    explicit: false
    by artist: ÄSTRA
    in album: De la Piel para Adentro
      type: MusicAlbum
      date published: 2021-05-25
    isrc code: QZ7362100062
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T10:15:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa717fe6ea8b4b0a08b0e46c9d108b5c1f7035c4b5b087412508fa419db4c5e25
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956637
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956637
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ7362100062
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:56:23Z
    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 0xa717fe6ea8b4b0a08b0e46c9d108b5c1f7035c4b5b087412508fa419db4c5e25. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZ7362100062.
      date published: 2026-07-04T10:56:23Z
    audio: De la Piel para Adentro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.976
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.448
      additional property: Energy
        type: PropertyValue
        value: 0.913
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.01
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.097
      additional property: Liveness
        type: PropertyValue
        value: 0.34
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.311
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.269
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Fire
  type: MusicAlbum
  date published: 2021-05-25
album: Pop Candy
  type: MusicAlbum
  date published: 2022-02-25
album: Earth
  type: MusicAlbum
  date published: 2022-03-25
album: Earth
  type: MusicAlbum
  date published: 2022-03-25
album: Navaja
  type: MusicAlbum
  date published: 2022-03-25
album: Air
  type: MusicAlbum
  date published: 2022-10-07
album: Beam Me Up
  type: MusicAlbum
  date published: 2022-10-07
album: AIR
  type: MusicAlbum
  date published: 2022-10-07
album: Beam Me Up
  type: MusicAlbum
  date published: 2022-10-07
album: Easy Ride
  type: MusicAlbum
  date published: 2023-02-17
album: Easy Ride
  type: MusicAlbum
  date published: 2023-02-17
album: The Well
  type: MusicAlbum
  date published: 2023-06-23
album: ABC
  type: MusicAlbum
  date published: 2024-08-29
album: Either
  type: MusicAlbum
  date published: 2025-02-20
album: Time Doesn't Stop
  type: MusicAlbum
  date published: 2025-04-30
album: Exhibit 8
  type: MusicAlbum
  date published: 2025-06-26