クラリネット・アンサンブル フェリチタ
type: MusicGroup
popularity: 3
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x273123e2117e70ce9f2ba4841bef6f5210fbc553fe13fac5f7d666e345e1f72b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e97d161c-c520-47c4-85c9-382b21ff31eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e97d161c-c520-47c4-85c9-382b21ff31eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e97d161c-c520-47c4-85c9-382b21ff31eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x273123e2117e70ce9f2ba4841bef6f5210fbc553fe13fac5f7d666e345e1f72b","name":"クラリネット・アンサンブル フェリチタ","registered_at":"2026-06-21T10:26:34Z","symbol":"NIM1898752","token_address":"0x5fbf6f0df2ea17dab05566bb487db41e8af309cf","type":"artist","uuid":"e97d161c-c520-47c4-85c9-382b21ff31eb"}
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 0x273123e2117e70ce9f2ba4841bef6f5210fbc553fe13fac5f7d666e345e1f72b. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e97d161c-c520-47c4-85c9-382b21ff31eb.json and https://artists.proofprofile.net/proofs/artist/e97d161c-c520-47c4-85c9-382b21ff31eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x273123e2117e70ce9f2ba4841bef6f5210fbc553fe13fac5f7d666e345e1f72b","name":"クラリネット・アンサンブル フェリチタ","registered_at":"2026-06-21T10:26:34Z","symbol":"NIM1898752","token_address":"0x5fbf6f0df2ea17dab05566bb487db41e8af309cf","type":"artist","uuid":"e97d161c-c520-47c4-85c9-382b21ff31eb"}
album: ザイデンシュトラーセン ／ ネクサス・アンサンブル・レパートリー Vol.1
  type: MusicAlbum
  date published: 2020-08-08
album: ルトゥール／ネクサス・アンサンブル・レパートリー Vol.2
  type: MusicAlbum
  date published: 2021-12-11
album: アンダンテ・フェスティーヴォ／ネクサス・アンサンブル・レパートリー Vol.3
  type: MusicAlbum
  date published: 2022-12-06
album: たなばた／ネクサス・アンサンブル・レパートリー Vol.4
  type: MusicAlbum
  date published: 2024-02-03
album: クラリネット六重奏のための組曲／ネクサス・アンサンブル・レパートリー Vol.5
  type: MusicAlbum
  date published: 2025-09-12