èstro
type: MusicGroup
genre: german pop
popularity: 3
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26b25662264dd012ed21bf7c2b7c17e694700f061db4a865dac9de4d92446a77
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fde611fb-0b4d-434b-adaf-d94f968e7d4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fde611fb-0b4d-434b-adaf-d94f968e7d4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fde611fb-0b4d-434b-adaf-d94f968e7d4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x26b25662264dd012ed21bf7c2b7c17e694700f061db4a865dac9de4d92446a77","name":"èstro","registered_at":"2026-06-21T18:18:07Z","symbol":"NIM1997625","token_address":"0xa28c9b0dc12e74725025b9597a5524d82f06becf","type":"artist","uuid":"fde611fb-0b4d-434b-adaf-d94f968e7d4b"}
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 0x26b25662264dd012ed21bf7c2b7c17e694700f061db4a865dac9de4d92446a77. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fde611fb-0b4d-434b-adaf-d94f968e7d4b.json and https://artists.proofprofile.net/proofs/artist/fde611fb-0b4d-434b-adaf-d94f968e7d4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x26b25662264dd012ed21bf7c2b7c17e694700f061db4a865dac9de4d92446a77","name":"èstro","registered_at":"2026-06-21T18:18:07Z","symbol":"NIM1997625","token_address":"0xa28c9b0dc12e74725025b9597a5524d82f06becf","type":"artist","uuid":"fde611fb-0b4d-434b-adaf-d94f968e7d4b"}
album: Double Cup
  type: MusicAlbum
  date published: 2024-07-20
album: Vapormax
  type: MusicAlbum
  date published: 2024-09-06
  track: Vapormax
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138666
    explicit: false
    by artist: èstro
    in album: Vapormax
      type: MusicAlbum
      date published: 2024-09-06
    genre: german pop
    isrc code: QZTBB2496376
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T21:26:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19bbba8ad04ef27de1a0d0c3a6cfd05a9de6b582f581dc04ccb8fc72d5dd7818
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959061
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959061
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2496376
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T00:28:17Z
    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 0x19bbba8ad04ef27de1a0d0c3a6cfd05a9de6b582f581dc04ccb8fc72d5dd7818. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:28:17Z), 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/QZTBB2496376.
      date published: 2026-07-22T00:28:17Z
    audio: Vapormax
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.963
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.795
      additional property: Energy
        type: PropertyValue
        value: 0.294
      additional property: Speechiness
        type: PropertyValue
        value: 0.453
      additional property: Acousticness
        type: PropertyValue
        value: 0.525
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.394
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.982
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Raspberry ice
  type: MusicAlbum
  date published: 2024-12-01
album: Simsalabim
  type: MusicAlbum
  date published: 2025-04-04
album: 007
  type: MusicAlbum
  date published: 2025-05-02
album: Bellydancer
  type: MusicAlbum
  date published: 2025-06-15