Jemma Catherine
type: MusicGroup
popularity: 8
followers: 727
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd711f347197f2409b3b737b1ae8f77ea6dbd90cd7e91fea79155044a8aad5ce4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd711f347197f2409b3b737b1ae8f77ea6dbd90cd7e91fea79155044a8aad5ce4","name":"Jemma Catherine","registered_at":"2026-06-20T10:54:47Z","symbol":"NIM1596789","token_address":"0x02656bf8dc6864461f52b1cb72910a30780e28fc","type":"artist","uuid":"aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e"}
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 0xd711f347197f2409b3b737b1ae8f77ea6dbd90cd7e91fea79155044a8aad5ce4. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e.json and https://artists.proofprofile.net/proofs/artist/aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xd711f347197f2409b3b737b1ae8f77ea6dbd90cd7e91fea79155044a8aad5ce4","name":"Jemma Catherine","registered_at":"2026-06-20T10:54:47Z","symbol":"NIM1596789","token_address":"0x02656bf8dc6864461f52b1cb72910a30780e28fc","type":"artist","uuid":"aeee6f62-9fb6-46c9-b281-ebf0bcd9c53e"}
album: Alles Gee
  type: MusicAlbum
  date published: 2022-03-04
album: Almal Het Iemand
  type: MusicAlbum
  date published: 2022-07-01
album: Klaar Gesmeek
  type: MusicAlbum
  date published: 2023-03-03
album: SOS
  type: MusicAlbum
  date published: 2023-07-07
  track: SOS
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157934
    explicit: false
    by artist: Jemma Catherine
    in album: SOS
      type: MusicAlbum
      date published: 2023-07-07
    isrc code: ZA34K2301224
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T19:07:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6bc4e8381d78eed196bb8b16000ef8aef46361611662f09ec395da6e7bb42b73
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958600
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958600
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA34K2301224
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:24:05Z
    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 0x6bc4e8381d78eed196bb8b16000ef8aef46361611662f09ec395da6e7bb42b73. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/ZA34K2301224.
      date published: 2026-07-18T19:24:05Z
    audio: SOS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.811
      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: 0.561
      additional property: Energy
        type: PropertyValue
        value: 0.444
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.726
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.15
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.772
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Versmoor
  type: MusicAlbum
  date published: 2023-09-29
album: Verkleur Verskeur
  type: MusicAlbum
  date published: 2024-04-05
album: VERKLEUR VERSKEUR
  type: MusicAlbum
  date published: 2024-04-19
album: ANNEMAN
  type: MusicAlbum
  date published: 2024-10-04
album: Dans My Deurmekaar
  type: MusicAlbum
  date published: 2024-11-08
  track: Dans My Deurmekaar
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172075
    explicit: false
    by artist: Jemma Catherine
    in album: Dans My Deurmekaar
      type: MusicAlbum
      date published: 2024-11-08
    isrc code: ZAEI72400140
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T12:37:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2810da04da78e7dd7b5e391e8582c816e49df65766ee932c35f623ca9d5a9e34
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAEI72400140
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:14:32Z
    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 0x2810da04da78e7dd7b5e391e8582c816e49df65766ee932c35f623ca9d5a9e34. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ZAEI72400140.
      date published: 2026-07-15T13:14:32Z
    audio: Dans My Deurmekaar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.012
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      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
album: Mooi Ding

Danceability
type: PropertyValue
value: 0.773

Energy
type: PropertyValue
value: 0.593

Speechiness
type: PropertyValue
value: 0.069

Acousticness
type: PropertyValue
value: 0.039

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.419

Valence (Positivity)
type: PropertyValue
value: 0.697

Loudness (dB)
type: PropertyValue
value: -6.129

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Mooi Ding
type: MusicAlbum
date published: 2025-07-18