Grace Zimmerman
type: MusicGroup
popularity: 8
followers: 466
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8d23079a142c190b3658496690ac96d8e0a31fde16b05ac14105a0aaf63cc7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d155800-0e38-42e8-b2f8-33a50f4dfa55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d155800-0e38-42e8-b2f8-33a50f4dfa55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d155800-0e38-42e8-b2f8-33a50f4dfa55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8d23079a142c190b3658496690ac96d8e0a31fde16b05ac14105a0aaf63cc7f","name":"Grace Zimmerman","registered_at":"2026-06-17T09:17:07Z","symbol":"NIM1349946","token_address":"0x85dd7406d35517e078f7a71e34bf00a3ab4ed0e3","type":"artist","uuid":"7d155800-0e38-42e8-b2f8-33a50f4dfa55"}
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 0xb8d23079a142c190b3658496690ac96d8e0a31fde16b05ac14105a0aaf63cc7f. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d155800-0e38-42e8-b2f8-33a50f4dfa55.json and https://artists.proofprofile.net/proofs/artist/7d155800-0e38-42e8-b2f8-33a50f4dfa55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0xb8d23079a142c190b3658496690ac96d8e0a31fde16b05ac14105a0aaf63cc7f","name":"Grace Zimmerman","registered_at":"2026-06-17T09:17:07Z","symbol":"NIM1349946","token_address":"0x85dd7406d35517e078f7a71e34bf00a3ab4ed0e3","type":"artist","uuid":"7d155800-0e38-42e8-b2f8-33a50f4dfa55"}
album: Stained Glass Window
  type: MusicAlbum
  date published: 2023-11-06
album: Love Letter Monologue
  type: MusicAlbum
  date published: 2023-11-07
album: Art Class
  type: MusicAlbum
  date published: 2023-11-09
  track: Art Class
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195904
    explicit: false
    by artist: Grace Zimmerman
    in album: Art Class
      type: MusicAlbum
      date published: 2023-11-09
    isrc code: QZTBE2381456
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:58:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19024f129e1092ca0b02063909eea1f3b896dd4bd4d099a0619ba830e0534935
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBE2381456
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:59:55Z
    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 0x19024f129e1092ca0b02063909eea1f3b896dd4bd4d099a0619ba830e0534935. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:59:55Z), 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/QZTBE2381456.
      date published: 2026-07-21T03:59:55Z
    audio: Art Class
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.25
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.356
      additional property: Energy
        type: PropertyValue
        value: 0.069
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.946
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.92
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.2
      additional property: Loudness (dB)
        type: PropertyValue
        value: -31.178
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Soon, You'll Realize
  type: MusicAlbum
  date published: 2024-01-23
album: Anything
  type: MusicAlbum
  date published: 2024-05-16
album: Covers for Sad People
  type: MusicAlbum
  date published: 2024-05-22
album: The Half Of it
  type: MusicAlbum
  date published: 2025-03-26
  track: The Half Of it
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209130
    explicit: false
    by artist: Grace Zimmerman
    in album: The Half Of it
      type: MusicAlbum
      date published: 2025-03-26
    isrc code: QZK6L2560059
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T15:51:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcc055bdc57ee70645f7fc9c13852ceb293edca55d391e9e58cf3372c6499b6e0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958176
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958176
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2560059
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T18:52:40Z
    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 0xcc055bdc57ee70645f7fc9c13852ceb293edca55d391e9e58cf3372c6499b6e0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:52:40Z), 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/QZK6L2560059.
      date published: 2026-07-15T18:52:40Z
    audio: The Half Of it
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.688
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.363
      additional property: Energy
        type: PropertyValue
        value: 0.101
      additional property: Speechiness
      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

Speechiness
type: PropertyValue
value: 0.077

Acousticness
type: PropertyValue
value: 0.935

Instrumentalness
type: PropertyValue
value: 0.888

Liveness
type: PropertyValue
value: 0.118

Valence (Positivity)
type: PropertyValue
value: 0.39

Loudness (dB)
type: PropertyValue
value: -26.055

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major