三遊亭 圓楽（6代目）
type: MusicGroup
popularity: 2
followers: 1867
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4768676772b01feee1da6c14e45b17dc6a8d58de3846a380e2afd8d14b34e3ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fda59cd7-7f53-4683-8ad3-f82658296cf4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fda59cd7-7f53-4683-8ad3-f82658296cf4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fda59cd7-7f53-4683-8ad3-f82658296cf4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4768676772b01feee1da6c14e45b17dc6a8d58de3846a380e2afd8d14b34e3ba","name":"三遊亭 圓楽（6代目）","registered_at":"2026-06-21T18:18:15Z","symbol":"NIM1999651","token_address":"0xed71b72a0a2568888eece0f24204525c7a1531e4","type":"artist","uuid":"fda59cd7-7f53-4683-8ad3-f82658296cf4"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4768676772b01feee1da6c14e45b17dc6a8d58de3846a380e2afd8d14b34e3ba. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fda59cd7-7f53-4683-8ad3-f82658296cf4.json and https://artists.proofprofile.net/proofs/artist/fda59cd7-7f53-4683-8ad3-f82658296cf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x4768676772b01feee1da6c14e45b17dc6a8d58de3846a380e2afd8d14b34e3ba","name":"三遊亭 圓楽（6代目）","registered_at":"2026-06-21T18:18:15Z","symbol":"NIM1999651","token_address":"0xed71b72a0a2568888eece0f24204525c7a1531e4","type":"artist","uuid":"fda59cd7-7f53-4683-8ad3-f82658296cf4"}
album: 三遊亭圓楽1「朝日名人会」ライヴシリーズ126「船徳」「浜野矩随」「一文笛」「ねずみ」
  type: MusicAlbum
  date published: 2018-10-31
album: 三遊亭圓楽1「朝日名人会」ライヴシリーズ126「船徳」「浜野矩随」「一文笛」「ねずみ」
  type: MusicAlbum
  date published: 2018-10-31