後藤浩二
type: MusicGroup
popularity: 2
followers: 213
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73e2fc4d5bb75c469881772b69d5e0d7ac13f58eeceb0a2b3b42b356a87fff93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ace869f5-09fd-4e22-96a2-34f8fd0c2e43.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ace869f5-09fd-4e22-96a2-34f8fd0c2e43.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ace869f5-09fd-4e22-96a2-34f8fd0c2e43
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73e2fc4d5bb75c469881772b69d5e0d7ac13f58eeceb0a2b3b42b356a87fff93","name":"後藤浩二","registered_at":"2026-06-20T09:58:59Z","symbol":"NIM1586718","token_address":"0xfa61bb3d7ed5c3ebea52c60d421f4584171e91b3","type":"artist","uuid":"ace869f5-09fd-4e22-96a2-34f8fd0c2e43"}
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 0x73e2fc4d5bb75c469881772b69d5e0d7ac13f58eeceb0a2b3b42b356a87fff93. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ace869f5-09fd-4e22-96a2-34f8fd0c2e43.json and https://artists.proofprofile.net/proofs/artist/ace869f5-09fd-4e22-96a2-34f8fd0c2e43.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x73e2fc4d5bb75c469881772b69d5e0d7ac13f58eeceb0a2b3b42b356a87fff93","name":"後藤浩二","registered_at":"2026-06-20T09:58:59Z","symbol":"NIM1586718","token_address":"0xfa61bb3d7ed5c3ebea52c60d421f4584171e91b3","type":"artist","uuid":"ace869f5-09fd-4e22-96a2-34f8fd0c2e43"}
album: La Rencontre
  type: MusicAlbum
  date published: 2016-03-05
album: TOKI
  type: MusicAlbum
  date published: 2023-11-15
album: 時刻- TOKI -
  type: MusicAlbum
  date published: 2023-11-15