Helena Silva
type: MusicGroup
genre: neoclassical
popularity: 10
followers: 139
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x75531a593fd28bb77d531e8303aa8795dce766e90a38bde4c0c042eab49c1e5f
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
  value: https://artists.proofprofile.net/proofs/artist/a474f56a-fa44-4231-bcdd-589a59d82350.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a474f56a-fa44-4231-bcdd-589a59d82350.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a474f56a-fa44-4231-bcdd-589a59d82350
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x75531a593fd28bb77d531e8303aa8795dce766e90a38bde4c0c042eab49c1e5f","name":"Helena Silva","registered_at":"2026-06-20T07:02:31Z","symbol":"NIM1547424","token_address":"0xa0ab6a53a4b2cc8e52a2e0a35c71a368719e6061","type":"artist","uuid":"a474f56a-fa44-4231-bcdd-589a59d82350"}
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 0x75531a593fd28bb77d531e8303aa8795dce766e90a38bde4c0c042eab49c1e5f. 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/a474f56a-fa44-4231-bcdd-589a59d82350.json and https://artists.proofprofile.net/proofs/artist/a474f56a-fa44-4231-bcdd-589a59d82350.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x75531a593fd28bb77d531e8303aa8795dce766e90a38bde4c0c042eab49c1e5f","name":"Helena Silva","registered_at":"2026-06-20T07:02:31Z","symbol":"NIM1547424","token_address":"0xa0ab6a53a4b2cc8e52a2e0a35c71a368719e6061","type":"artist","uuid":"a474f56a-fa44-4231-bcdd-589a59d82350"}
album: Beirut '65
  type: MusicAlbum
  date published: 2023-02-10
album: Manta
  type: MusicAlbum
  date published: 2023-03-10
album: Manta
  type: MusicAlbum
  date published: 2023-03-10
  track: Melan Chole
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197316
    explicit: false
    by artist: Helena Silva
    in album: Manta
      type: MusicAlbum
      date published: 2023-03-10
    genre: neoclassical
    isrc code: GX8LD2379443
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T01:18:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x237928db2fbf8f586644e54b5593424b24ac8e1fbf2a881adccb61c2fb5b8387
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958480
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958480
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LD2379443
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T02:58:58Z
    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 0x237928db2fbf8f586644e54b5593424b24ac8e1fbf2a881adccb61c2fb5b8387. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GX8LD2379443.
      date published: 2026-07-18T02:58:58Z
    audio: Melan Chole
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.742
      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: 0.165
      additional property: Energy
        type: PropertyValue
        value: 0.297
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.694
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.819
      additional property: Liveness
        type: PropertyValue
        value: 0.066
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.03
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.214
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Celeste
  type: MusicAlbum
  date published: 2025-09-05
album: Morning Tide
  type: MusicAlbum
  date published: 2025-09-19
album: Celeste
  type: MusicAlbum
  date published: 2025-10-03