Ester Na
type: MusicGroup
popularity: 7
followers: 250
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec6e7c0a0860f67c5b9e7eadf0e549e779a78527f0bd0aa5f808c8855f2d470d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d6d7a1-deca-420d-8dba-ee685dadcf0f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8d6d7a1-deca-420d-8dba-ee685dadcf0f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8d6d7a1-deca-420d-8dba-ee685dadcf0f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xec6e7c0a0860f67c5b9e7eadf0e549e779a78527f0bd0aa5f808c8855f2d470d","name":"Ester Na","registered_at":"2026-06-21T16:14:44Z","symbol":"NIM1971139","token_address":"0x947ea5840fe37d6d55155602ef536e01ef11c734","type":"artist","uuid":"f8d6d7a1-deca-420d-8dba-ee685dadcf0f"}
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 0xec6e7c0a0860f67c5b9e7eadf0e549e779a78527f0bd0aa5f808c8855f2d470d. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8d6d7a1-deca-420d-8dba-ee685dadcf0f.json and https://artists.proofprofile.net/proofs/artist/f8d6d7a1-deca-420d-8dba-ee685dadcf0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xec6e7c0a0860f67c5b9e7eadf0e549e779a78527f0bd0aa5f808c8855f2d470d","name":"Ester Na","registered_at":"2026-06-21T16:14:44Z","symbol":"NIM1971139","token_address":"0x947ea5840fe37d6d55155602ef536e01ef11c734","type":"artist","uuid":"f8d6d7a1-deca-420d-8dba-ee685dadcf0f"}
album: Memories
  type: MusicAlbum
  date published: 2020-12-21
album: Galaxy
  type: MusicAlbum
  date published: 2021-01-15
album: Coffee
  type: MusicAlbum
  date published: 2021-01-29
album: You+Me
  type: MusicAlbum
  date published: 2021-02-05
album: Yi
  type: MusicAlbum
  date published: 2021-02-12
album: Pisces
  type: MusicAlbum
  date published: 2021-02-26
album: Rhythm Bouquet
  type: MusicAlbum
  date published: 2021-04-05
album: Wind
  type: MusicAlbum
  date published: 2021-05-12
album: Circles
  type: MusicAlbum
  date published: 2021-05-13
album: Right Place
  type: MusicAlbum
  date published: 2021-06-25
album: Free
  type: MusicAlbum
  date published: 2021-12-13
  track: Free
    type: MusicRecording
    duration: PT4M39S
    duration ms: 279945
    explicit: false
    by artist: Ester Na
    in album: Free
      type: MusicAlbum
      date published: 2021-12-13
    isrc code: QZNJY2134237
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T10:47:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x21d6778d6ea7be8e352295d67636e5e87b009f09c6e5c7c548b03c7eeb7db70c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956383
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956383
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2134237
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T18:11:59Z
    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 0x21d6778d6ea7be8e352295d67636e5e87b009f09c6e5c7c548b03c7eeb7db70c. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZNJY2134237.
      date published: 2026-07-02T18:11:59Z
    audio: Free
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.854
      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: 0.628
      additional property: Energy
        type: PropertyValue
        value: 0.554
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.119
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.927
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.184
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.029
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Honesty
  type: MusicAlbum
  date published: 2022-05-18
album: Karma
  type: MusicAlbum
  date published: 2024-03-13
album: Falling in Love
  type: MusicAlbum
  date published: 2024-04-17
album: Heartbeat
  type: MusicAlbum
  date published: 2024-08-28
album: Echo
  type: MusicAlbum
  date published: 2024-10-25
album: Far Beyond
  type: MusicAlbum
  date published: 2024-11-01
track: Circles

Circles
type: MusicRecording
duration: PT2M40S
duration ms: 160000
explicit: false
by artist: Lucid Monday
by artist: Ester Na
in album: LM026
  type: MusicAlbum
  date published: 2022-01-24
isrc code: QZN882213515
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:51:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdbe16ccffc34ffba7a15df40a1572594ecebf192326ec5effe64549a7f364837
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882213515
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe16ccffc34ffba7a15df40a1572594ecebf192326ec5effe64549a7f364837. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZN882213515.
  date published: 2026-07-08T08:56:20Z
audio: Circles
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.667
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.557
  additional property: Energy
    type: PropertyValue
    value: 0.751
  additional property: Speechiness
    type: PropertyValue
    value: 0.077
  additional property: Acousticness
    type: PropertyValue
    value: 0.676
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.45
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.067
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major