はぐち
type: MusicGroup
popularity: 9
followers: 956
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38a8c37176952e030c932bdb00a3e5739d7a6fc940e8fa53a0fbb79a9fe0d8ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53333f24-0392-456c-bd5c-f2c3b787d3e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53333f24-0392-456c-bd5c-f2c3b787d3e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53333f24-0392-456c-bd5c-f2c3b787d3e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x38a8c37176952e030c932bdb00a3e5739d7a6fc940e8fa53a0fbb79a9fe0d8ba","name":"はぐち","registered_at":"2026-06-16T18:32:19Z","symbol":"NIM1138880","token_address":"0x6cdca08bea80e0d0af3cf6a52c4223d437a634e7","type":"artist","uuid":"53333f24-0392-456c-bd5c-f2c3b787d3e8"}
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 0x38a8c37176952e030c932bdb00a3e5739d7a6fc940e8fa53a0fbb79a9fe0d8ba. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53333f24-0392-456c-bd5c-f2c3b787d3e8.json and https://artists.proofprofile.net/proofs/artist/53333f24-0392-456c-bd5c-f2c3b787d3e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x38a8c37176952e030c932bdb00a3e5739d7a6fc940e8fa53a0fbb79a9fe0d8ba","name":"はぐち","registered_at":"2026-06-16T18:32:19Z","symbol":"NIM1138880","token_address":"0x6cdca08bea80e0d0af3cf6a52c4223d437a634e7","type":"artist","uuid":"53333f24-0392-456c-bd5c-f2c3b787d3e8"}
album: 檸檬とゆう木
  type: MusicAlbum
  date published: 2020-05-06
album: あこがれのくらし
  type: MusicAlbum
  date published: 2021-06-03
album: 離れられないから影 (demo ver.)
  type: MusicAlbum
  date published: 2022-11-11
album: デアユー (demo ver.)
  type: MusicAlbum
  date published: 2023-01-01
album: いい日にしようね
  type: MusicAlbum
  date published: 2023-09-22
album: 予感
  type: MusicAlbum
  date published: 2024-06-01
album: あこがれのくらし
  type: MusicAlbum
  date published: 2024-07-10
album: 離れられないから影
  type: MusicAlbum
  date published: 2024-09-04