Hizumi Rei
type: MusicGroup
genre: vocaloid
popularity: 6
followers: 774
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7977442b81b2bd88f5c57f8fba46ec938d3765dfdc0da17303635fa6b7f07992
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a96399b0-b157-4798-ba23-e36055c84e9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a96399b0-b157-4798-ba23-e36055c84e9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a96399b0-b157-4798-ba23-e36055c84e9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7977442b81b2bd88f5c57f8fba46ec938d3765dfdc0da17303635fa6b7f07992","name":"Hizumi Rei","registered_at":"2026-06-20T09:08:38Z","symbol":"NIM1574335","token_address":"0x6ead08473186efc97843b5d9a4f67e1f8ec61bdb","type":"artist","uuid":"a96399b0-b157-4798-ba23-e36055c84e9f"}
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 0x7977442b81b2bd88f5c57f8fba46ec938d3765dfdc0da17303635fa6b7f07992. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a96399b0-b157-4798-ba23-e36055c84e9f.json and https://artists.proofprofile.net/proofs/artist/a96399b0-b157-4798-ba23-e36055c84e9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x7977442b81b2bd88f5c57f8fba46ec938d3765dfdc0da17303635fa6b7f07992","name":"Hizumi Rei","registered_at":"2026-06-20T09:08:38Z","symbol":"NIM1574335","token_address":"0x6ead08473186efc97843b5d9a4f67e1f8ec61bdb","type":"artist","uuid":"a96399b0-b157-4798-ba23-e36055c84e9f"}
album: Yahweh
  type: MusicAlbum
  date published: 2022-06-17
album: Metha Luminol
  type: MusicAlbum
  date published: 2022-06-17
album: Húxiān
  type: MusicAlbum
  date published: 2022-06-17
album: Lodicalist
  type: MusicAlbum
  date published: 2022-06-17
album: Zero
  type: MusicAlbum
  date published: 2022-06-17
album: Puppeteer
  type: MusicAlbum
  date published: 2022-06-17
  track: Puppeteer
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213242
    explicit: false
    by artist: Hizumi Rei
    in album: Puppeteer
      type: MusicAlbum
      date published: 2022-06-17
    genre: vocaloid
    isrc code: TCJPS2224557
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:03:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x50460a1dbfc8c45dcc84a6a9f64f3065631ed1e07069c70a36a2650159bc58bc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958805
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958805
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2224557
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:03:46Z
    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 0x50460a1dbfc8c45dcc84a6a9f64f3065631ed1e07069c70a36a2650159bc58bc. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:03:46Z), 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/TCJPS2224557.
      date published: 2026-07-20T05:03:46Z
    audio: Puppeteer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.838
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.466
      additional property: Energy
        type: PropertyValue
        value: 0.968
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.955
      additional property: Liveness
        type: PropertyValue
        value: 0.332
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.195
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.754
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mìmǎ
  type: MusicAlbum
  date published: 2022-08-16
album: Phyge
  type: MusicAlbum
  date published: 2022-08-24
album: Kubos
  type: MusicAlbum
  date published: 2022-10-18
album: Etizolam
  type: MusicAlbum
  date published: 2022-12-15
album: MusicAlbum
  date published: 2023-01-18
album: Solipse
  type: MusicAlbum
  date published: 2023-07-13
album: Calaverita
  type: MusicAlbum
  date published: 2023-07-13
album: paraquat
  type: MusicAlbum
  date published: 2023-08-05
album: Prompt
  type: MusicAlbum
  date published: 2023-10-22
album: Festivals only for you
  type: MusicAlbum
  date published: 2023-11-08
album: unwel
  type: MusicAlbum
  date published: 2023-11-28
album: Deeeer
  type: MusicAlbum
  date published: 2024-03-22
album: Dorky Founder
  type: MusicAlbum
  date published: 2024-03-22
album: Dear, Nameless You
  type: MusicAlbum
  date published: 2024-03-22
album: Hellow
  type: MusicAlbum
  date published: 2024-03-22
album: Metaferno
  type: MusicAlbum
  date published: 2024-03-22
album: F
  type: MusicAlbum
  date published: 2024-03-22
album: Festivals only for you
  type: MusicAlbum
  date published: 2024-03-22
album: RaDium
  type: MusicAlbum
  date published: 2024-03-22
album: Sawable
  type: MusicAlbum
  date published: 2024-04-26
album: We are an alliance of hating you
album: Beyodome
album: As I perceive it,
album: you_mania
album: Eat Crow (feat. Rumecia)
album: Spineless Guru
album: Ethic
album: GURUGURU

We are an alliance of hating you
type: MusicAlbum
date published: 2024-04-26

Beyodome
type: MusicAlbum
date published: 2024-08-02

As I perceive it,
type: MusicAlbum
date published: 2025-02-14

you_mania
type: MusicAlbum
date published: 2025-02-14

Eat Crow (feat. Rumecia)
type: MusicAlbum
date published: 2025-04-19

Spineless Guru
type: MusicAlbum
date published: 2025-05-27

Ethic
type: MusicAlbum
date published: 2025-06-21

GURUGURU
type: MusicAlbum
date published: 2025-08-30