ryuryu
type: MusicGroup
genre: vocaloid
popularity: 12
followers: 3244
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3edc609113e89cdf59f5d3346542f99ec3c6c6f5b4d1249cf9a81cafd42f75b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953610
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953610
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13cf9ad7-1e22-4761-9d24-7cb11a4a6a3c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13cf9ad7-1e22-4761-9d24-7cb11a4a6a3c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/13cf9ad7-1e22-4761-9d24-7cb11a4a6a3c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:58:09Z
additional property: OTSCanonicalRecord
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 0x3edc609113e89cdf59f5d3346542f99ec3c6c6f5b4d1249cf9a81cafd42f75b9. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13cf9ad7-1e22-4761-9d24-7cb11a4a6a3c.json and https://artists.proofprofile.net/proofs/artist/13cf9ad7-1e22-4761-9d24-7cb11a4a6a3c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:58:09Z
album: ephemera
  type: MusicAlbum
  date published: 2009-06-24
album: ephemera
  type: MusicAlbum
  date published: 2009-06-24
album: Homeland
  type: MusicAlbum
  date published: 2010-11-17
album: Homeland
  type: MusicAlbum
  date published: 2010-11-17
album: Vibgyor
  type: MusicAlbum
  date published: 2014-04-30
album: Vibgyor
  type: MusicAlbum
  date published: 2014-04-30
album: Glory Glory
  type: MusicAlbum
  date published: 2016-06-01
album: World Clock
  type: MusicAlbum
  date published: 2018-08-22
album: Physics
  type: MusicAlbum
  date published: 2018-09-12
  track: Nocturnal
    type: MusicRecording
    duration: PT6M40S
    duration ms: 400300
    explicit: false
    by artist: ryuryu
    in album: Physics
      type: MusicAlbum
      date published: 2018-09-12
    genre: vocaloid
    isrc code: JPE561804955
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T06:19:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4a432a9e18b4974a8b8eedd38e00ce8d9f1851669d30a34010bf58fb8d605d09
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561804955
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0x4a432a9e18b4974a8b8eedd38e00ce8d9f1851669d30a34010bf58fb8d605d09. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPE561804955.
      date published: 2026-07-03T09:04:44Z
    audio: Nocturnal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.033
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.495
      additional property: Energy
        type: PropertyValue
        value: 0.832
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.079
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.05
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.078
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.004
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Birthday
    type: MusicRecording
    duration: PT4M19S
    duration ms: 259655
    explicit: false
    by artist: ryuryu
    in album: Physics
      type: MusicAlbum
      date published: 2018-09-12
    genre: vocaloid
    isrc code: JPE561804957
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T17:29:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7a4b2bc64779b79d513fd8c39457a7eb5f85b296332c62e7a8101e336dad735a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561804957
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x7a4b2bc64779b79d513fd8c39457a7eb5f85b296332c62e7a8101e336dad735a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPE561804957.
      date published: 2026-07-05T19:27:56Z
    audio: Birthday
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.014
      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: Leaves From Homeland
album: Counterclockwise (Leaves From Homeland Extra)
album: Little Snowflake
album: クォーツァス
album: LoveLetter
album: Magic
album: A Brief History of Us
album: 時間旅行
album: hungry music ~EBIryday shrimp chili~
album: 環世界

Danceability
type: PropertyValue
value: 0.633

Energy
type: PropertyValue
value: 0.747

Speechiness
type: PropertyValue
value: 0.024

Acousticness
type: PropertyValue
value: 0.244

Instrumentalness
type: PropertyValue
value: 0.055

Liveness
type: PropertyValue
value: 0.222

Valence (Positivity)
type: PropertyValue
value: 0.516

Loudness (dB)
type: PropertyValue
value: -5.075

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Leaves From Homeland
type: MusicAlbum
date published: 2019-10-23

Counterclockwise (Leaves From Homeland Extra)
type: MusicAlbum
date published: 2019-12-18

Little Snowflake
type: MusicAlbum
date published: 2020-02-12

クォーツァス
type: MusicAlbum
date published: 2020-08-27

LoveLetter
type: MusicAlbum
date published: 2021-08-20

Magic
type: MusicAlbum
date published: 2021-11-17

A Brief History of Us
type: MusicAlbum
date published: 2022-10-19

時間旅行
type: MusicAlbum
date published: 2025-02-12

hungry music ~EBIryday shrimp chili~
type: MusicAlbum
date published: 2025-02-27

環世界
type: MusicAlbum
date published: 2025-09-05
track: Photon (feat. 初音ミク)
  type: MusicRecording
  duration: PT5M40S
  duration ms: 340242
  explicit: false
  by artist: ryuryu
  in album: 環世界
    type: MusicAlbum
    date published: 2025-09-05
  genre: vocaloid
  isrc code: JP92Q2502777
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T21:13:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa3013515bfcf9c698bffa0776ccffb7f8c7eb6fbbaf105ee28188050ba002184
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2502777
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  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 0xa3013515bfcf9c698bffa0776ccffb7f8c7eb6fbbaf105ee28188050ba002184. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JP92Q2502777.
    date published: 2026-07-05T01:43:49Z
  audio: Photon (feat. 初音ミク)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.996
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.544
    additional property: Energy
      type: PropertyValue
      value: 0.585
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.53
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.085
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.193
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.474
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major