Japanese Spring Jazz
type: MusicGroup
genre: ragtime
popularity: 5
followers: 130
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3edc51c73c3ee29d1f8ce840ebd2bcbf0d1f0aa20ffdd7a1f4bba6020dc8bf7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0db52278-8549-411d-b4f1-9fc89a6a3590.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0db52278-8549-411d-b4f1-9fc89a6a3590.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0db52278-8549-411d-b4f1-9fc89a6a3590
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3edc51c73c3ee29d1f8ce840ebd2bcbf0d1f0aa20ffdd7a1f4bba6020dc8bf7f","name":"Japanese Spring Jazz","registered_at":"2026-06-15T18:21:53Z","symbol":"NIM0792716","token_address":"0x6f2c38124f3f3d0502d827d27e5783ed13cfec5f","type":"artist","uuid":"0db52278-8549-411d-b4f1-9fc89a6a3590"}
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 0x3edc51c73c3ee29d1f8ce840ebd2bcbf0d1f0aa20ffdd7a1f4bba6020dc8bf7f. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0db52278-8549-411d-b4f1-9fc89a6a3590.json and https://artists.proofprofile.net/proofs/artist/0db52278-8549-411d-b4f1-9fc89a6a3590.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x3edc51c73c3ee29d1f8ce840ebd2bcbf0d1f0aa20ffdd7a1f4bba6020dc8bf7f","name":"Japanese Spring Jazz","registered_at":"2026-06-15T18:21:53Z","symbol":"NIM0792716","token_address":"0x6f2c38124f3f3d0502d827d27e5783ed13cfec5f","type":"artist","uuid":"0db52278-8549-411d-b4f1-9fc89a6a3590"}
album: Japanese Spring Jazz
  type: MusicAlbum
  date published: 2021-11-14
album: Japanese Summer Jazz
  type: MusicAlbum
  date published: 2022-05-23
album: Japanese Spring Jazz, Vol. 2
  type: MusicAlbum
  date published: 2022-06-18
album: Japanese Spring Jazz
  type: MusicAlbum
  date published: 2022-06-29
album: Japanese Jazz Bar
  type: MusicAlbum
  date published: 2022-08-22
album: Chill Japanese Jazz
  type: MusicAlbum
  date published: 2024-02-19
album: Chill Japanese Jazz
  type: MusicAlbum
  date published: 2025-01-13
album: Easy Jazz Breezing
  type: MusicAlbum
  date published: 2025-02-17
album: Summer Notes
  type: MusicAlbum
  date published: 2025-04-07
album: Echo in Time
  type: MusicAlbum
  date published: 2025-05-26
album: Doors Left Open
  type: MusicAlbum
  date published: 2025-06-16
album: Glass & Sway
  type: MusicAlbum
  date published: 2025-07-21