武島羽衣
type: MusicGroup
popularity: 8
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3200c0170831f91bd55dfde6ad0666ddcfb0de7fc2281b48a6f24190f7ee88d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5eb33e68-7a80-4a20-a3d8-93151ffcac9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5eb33e68-7a80-4a20-a3d8-93151ffcac9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5eb33e68-7a80-4a20-a3d8-93151ffcac9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb3200c0170831f91bd55dfde6ad0666ddcfb0de7fc2281b48a6f24190f7ee88d","name":"武島羽衣","registered_at":"2026-06-16T22:33:55Z","symbol":"NIM1196529","token_address":"0x45e215da4a975a5a1d46d8cd66109fbb0d9e2e74","type":"artist","uuid":"5eb33e68-7a80-4a20-a3d8-93151ffcac9f"}
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 0xb3200c0170831f91bd55dfde6ad0666ddcfb0de7fc2281b48a6f24190f7ee88d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5eb33e68-7a80-4a20-a3d8-93151ffcac9f.json and https://artists.proofprofile.net/proofs/artist/5eb33e68-7a80-4a20-a3d8-93151ffcac9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb3200c0170831f91bd55dfde6ad0666ddcfb0de7fc2281b48a6f24190f7ee88d","name":"武島羽衣","registered_at":"2026-06-16T22:33:55Z","symbol":"NIM1196529","token_address":"0x45e215da4a975a5a1d46d8cd66109fbb0d9e2e74","type":"artist","uuid":"5eb33e68-7a80-4a20-a3d8-93151ffcac9f"}