永澤 蒼.
type: MusicGroup
popularity: 2
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa94d49a142816943b77c5f5c55f7efc4ed970c9306b1b22c9afa0ce81594737b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d84931d0-5691-4b15-ab65-bede80d6fdb6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d84931d0-5691-4b15-ab65-bede80d6fdb6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d84931d0-5691-4b15-ab65-bede80d6fdb6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa94d49a142816943b77c5f5c55f7efc4ed970c9306b1b22c9afa0ce81594737b","name":"永澤 蒼.","registered_at":"2026-06-21T03:27:51Z","symbol":"NIM1805162","token_address":"0x8df896f02af305797849f082236a6a5f8e848f4f","type":"artist","uuid":"d84931d0-5691-4b15-ab65-bede80d6fdb6"}
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 0xa94d49a142816943b77c5f5c55f7efc4ed970c9306b1b22c9afa0ce81594737b. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d84931d0-5691-4b15-ab65-bede80d6fdb6.json and https://artists.proofprofile.net/proofs/artist/d84931d0-5691-4b15-ab65-bede80d6fdb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0xa94d49a142816943b77c5f5c55f7efc4ed970c9306b1b22c9afa0ce81594737b","name":"永澤 蒼.","registered_at":"2026-06-21T03:27:51Z","symbol":"NIM1805162","token_address":"0x8df896f02af305797849f082236a6a5f8e848f4f","type":"artist","uuid":"d84931d0-5691-4b15-ab65-bede80d6fdb6"}
album: 永澤 蒼.History selection (2020remaster)
  type: MusicAlbum
  date published: 2019-06-01
album: BABY STAR
  type: MusicAlbum
  date published: 2020-06-01
album: Girls
  type: MusicAlbum
  date published: 2022-10-16
album: You Are My Life
  type: MusicAlbum
  date published: 2024-12-01