Hakase-sun
type: MusicGroup
genre: dub
genre: lovers rock
genre: rocksteady
genre: ska
popularity: 12
followers: 2491
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42815d47edfd3b96594e4abdbb5571cdfd97c89bbb2949eaa4b9656c9f9dd554
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/836086ff-332f-4f88-ae57-e0985b8cf69d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/836086ff-332f-4f88-ae57-e0985b8cf69d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/836086ff-332f-4f88-ae57-e0985b8cf69d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
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 0x42815d47edfd3b96594e4abdbb5571cdfd97c89bbb2949eaa4b9656c9f9dd554. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/836086ff-332f-4f88-ae57-e0985b8cf69d.json and https://artists.proofprofile.net/proofs/artist/836086ff-332f-4f88-ae57-e0985b8cf69d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
album: Do Re Me Rockers♪
  type: MusicAlbum
  date published: 2002
album: Do Re Me Rockers♪
  type: MusicAlbum
  date published: 2002
album: SHANTY REGGAE MAGIC
  type: MusicAlbum
  date published: 2004-06-23
album: SHANTY REGGAE MAGIC
  type: MusicAlbum
  date published: 2004-06-23
album: SHANTY REGGAE MAGIC
  type: MusicAlbum
  date published: 2004-06-23
album: ADULT ORIENTED REGGAE
  type: MusicAlbum
  date published: 2005-11-23
album: ADULT ORIENTED REGGAE
  type: MusicAlbum
  date published: 2005-11-23
album: ADULT ORIENTED REGGAE
  type: MusicAlbum
  date published: 2005-11-23
album: Le Ciel Bleu
  type: MusicAlbum
  date published: 2007-05-30
album: 人のセックスを笑うな オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2007-12-19
album: 人のセックスを笑うな オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2007-12-19
  track: Ｃａｆｅ
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165906
    explicit: false
    by artist: Hakase-sun
    in album: 人のセックスを笑うな オリジナル・サウンドトラック
      type: MusicAlbum
      date published: 2007-12-19
    genre: dub
    genre: lovers rock
    genre: rocksteady
    genre: ska
    isrc code: JPS000700101
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:26:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0da6da510dd80d0fbe5a0c3eff732e987ef2715d733d7490f469e685831bfa9c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS000700101
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0x0da6da510dd80d0fbe5a0c3eff732e987ef2715d733d7490f469e685831bfa9c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPS000700101.
      date published: 2026-07-04T14:03:39Z
    audio: Ｃａｆｅ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.596
      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
        type: PropertyValue
        value: 0.526
      additional property: Energy
        type: PropertyValue
        value: 0.199
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.918
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.943
      additional property: Liveness
        type: PropertyValue
        value: 0.194
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.616
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.372
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 人のセックスを笑うな オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2008-01-16
album: Please Sunrise The Best Of HAKASE-SUN 2001-2008
  type: MusicAlbum
  date published: 2008-12-03
album: Please Sunrise The Best Of HAKASE-SUN 2001-2008
  type: MusicAlbum
  date published: 2008-12-03
album: Please Sunrise The Best Of HAKASE-SUN 2001-2008
  type: MusicAlbum
  date published: 2008-12-03
album: 南国タキシード
  type: MusicAlbum
  date published: 2009-07-08
album: 南国タキシード
  type: MusicAlbum
  date published: 2009-07-08
album: Reggae Spoonful
  type: MusicAlbum
  date published: 2013-07-24
album: Reggae Spoonful
  type: MusicAlbum
  date published: 2013-07-24
album: Gensou To Riddim No Tabi
  type: MusicAlbum
  date published: 2016-05-11
album: 幻想とリディムの旅
  type: MusicAlbum
  date published: 2016-05-11
album: 幻想とリディムの旅
  type: MusicAlbum
  date published: 2016-05-11
album: 幻想とリディムの旅
  type: MusicAlbum
  date published: 2016-05-11
album: 子午線ブリーズ ～ Meridian Breeze ～
  type: MusicAlbum
  date published: 2021-08-18
album: Ambitious Love
album: cafe a la dub
album: Let It Shine ! Let It Shine !! Let It Shine !!!

子午線ブリーズ ～ Meridian Breeze ～
type: MusicAlbum
date published: 2021-08-18

Ambitious Love
type: MusicAlbum
date published: 2021-09-08

Ambitious Love
type: MusicAlbum
date published: 2021-09-08

cafe a la dub
type: MusicAlbum
date published: 2021-09-29

cafe a la dub
type: MusicAlbum
date published: 2021-09-29

Let It Shine ! Let It Shine !! Let It Shine !!!
type: MusicAlbum
date published: 2021-10-20