Ella Hartwig
type: MusicGroup
popularity: 10
followers: 777
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4138e35a4f17ee8c3e889aa3e8e74cde72834a2895a430a549f17dd73d6e507b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/493932a8-0150-42e1-9663-740451003444.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/493932a8-0150-42e1-9663-740451003444.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/493932a8-0150-42e1-9663-740451003444
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4138e35a4f17ee8c3e889aa3e8e74cde72834a2895a430a549f17dd73d6e507b","name":"Ella Hartwig","registered_at":"2026-06-16T15:03:48Z","symbol":"NIM1089129","token_address":"0x778a19d6c236b902aaa9ee7b727cc25b9a1203ec","type":"artist","uuid":"493932a8-0150-42e1-9663-740451003444"}
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 0x4138e35a4f17ee8c3e889aa3e8e74cde72834a2895a430a549f17dd73d6e507b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/493932a8-0150-42e1-9663-740451003444.json and https://artists.proofprofile.net/proofs/artist/493932a8-0150-42e1-9663-740451003444.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x4138e35a4f17ee8c3e889aa3e8e74cde72834a2895a430a549f17dd73d6e507b","name":"Ella Hartwig","registered_at":"2026-06-16T15:03:48Z","symbol":"NIM1089129","token_address":"0x778a19d6c236b902aaa9ee7b727cc25b9a1203ec","type":"artist","uuid":"493932a8-0150-42e1-9663-740451003444"}
album: Ella Hartwig
  type: MusicAlbum
  date published: 2019-09-20
album: Ella Hartwig
  type: MusicAlbum
  date published: 2019-09-20
  track: When This Will End
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187999
    explicit: false
    by artist: Ella Hartwig
    in album: Ella Hartwig
      type: MusicAlbum
      date published: 2019-09-20
    isrc code: AUMEV1908196
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:01:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbbb1de2b0a6097b218d0cfe1d5356aa85e727413db8497249cb16355eeafc815
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958319
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958319
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV1908196
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:12:32Z
    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 0xbbb1de2b0a6097b218d0cfe1d5356aa85e727413db8497249cb16355eeafc815. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/AUMEV1908196.
      date published: 2026-07-16T20:12:32Z
    audio: When This Will End
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.029
      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: 0.657
      additional property: Energy
        type: PropertyValue
        value: 0.532
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.725
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.012
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.252
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.073
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Leaving
  type: MusicAlbum
  date published: 2021-10-22
album: Dear Grandpa
  type: MusicAlbum
  date published: 2022-02-06
album: Confused
  type: MusicAlbum
  date published: 2022-04-08
album: Out of Stone
  type: MusicAlbum
  date published: 2023-06-30
  track: Out of Stone
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195000
    explicit: false
    by artist: Ella Hartwig
    in album: Out of Stone
      type: MusicAlbum
      date published: 2023-06-30
    isrc code: AUMEV2356012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T09:32:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x01a1367d11d01350f29dcb33c190c7b8b2ac5189598ed41f62903a8100f512ad
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2356012
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x01a1367d11d01350f29dcb33c190c7b8b2ac5189598ed41f62903a8100f512ad. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUMEV2356012.
      date published: 2026-07-04T10:04:33Z
    audio: Out of Stone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.17
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.66
      additional property: Energy
        type: PropertyValue
        value: 0.551
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Western Star
album: Backup
album: Hometown
album: Fields of Gold
album: Clear My Mind
album: Take Me South (Deluxe Edition)

Acousticness
type: PropertyValue
value: 0.626

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.128

Valence (Positivity)
type: PropertyValue
value: 0.309

Loudness (dB)
type: PropertyValue
value: -7.898

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

Western Star
type: MusicAlbum
date published: 2023-11-10

Backup
type: MusicAlbum
date published: 2024-02-16

Hometown
type: MusicAlbum
date published: 2024-06-21

Fields of Gold
type: MusicAlbum
date published: 2024-08-09

Clear My Mind
type: MusicAlbum
date published: 2025-08-01

Take Me South (Deluxe Edition)
type: MusicAlbum
date published: 2025-09-26