増田貴久
type: MusicGroup
popularity: 40
followers: 9643
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x348e9b7f979f305c549410453da5822b2b5c5700fea9a39963af45fa223f10c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d70bf7d8-5b9b-459c-a0bc-a501fb43476b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d70bf7d8-5b9b-459c-a0bc-a501fb43476b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d70bf7d8-5b9b-459c-a0bc-a501fb43476b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x348e9b7f979f305c549410453da5822b2b5c5700fea9a39963af45fa223f10c1","name":"増田貴久","registered_at":"2026-06-12T11:00:22Z","symbol":"NIM0277495","token_address":"0x6ae961d5035291e0f0390c7a4b32649ca7795e83","type":"artist","uuid":"d70bf7d8-5b9b-459c-a0bc-a501fb43476b"}
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 0x348e9b7f979f305c549410453da5822b2b5c5700fea9a39963af45fa223f10c1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d70bf7d8-5b9b-459c-a0bc-a501fb43476b.json and https://artists.proofprofile.net/proofs/artist/d70bf7d8-5b9b-459c-a0bc-a501fb43476b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x348e9b7f979f305c549410453da5822b2b5c5700fea9a39963af45fa223f10c1","name":"増田貴久","registered_at":"2026-06-12T11:00:22Z","symbol":"NIM0277495","token_address":"0x6ae961d5035291e0f0390c7a4b32649ca7795e83","type":"artist","uuid":"d70bf7d8-5b9b-459c-a0bc-a501fb43476b"}
album: 喜怒哀楽
  type: MusicAlbum
  date published: 2025-02-12