深海奏汰(CAST:井澤巧麻)
type: MusicGroup
popularity: 4
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1b66c723757ce641f29b57d64734ca85948fa79b4549a742d64850272630724a
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/4a686fa9-6798-4367-8f30-06a0f071f0cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a686fa9-6798-4367-8f30-06a0f071f0cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a686fa9-6798-4367-8f30-06a0f071f0cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1b66c723757ce641f29b57d64734ca85948fa79b4549a742d64850272630724a","name":"深海奏汰(CAST:井澤巧麻)","registered_at":"2026-06-16T15:33:15Z","symbol":"NIM1096165","token_address":"0x2d7252584278d031ea384986b375539ff06b0aee","type":"artist","uuid":"4a686fa9-6798-4367-8f30-06a0f071f0cb"}
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 0x1b66c723757ce641f29b57d64734ca85948fa79b4549a742d64850272630724a. 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/4a686fa9-6798-4367-8f30-06a0f071f0cb.json and https://artists.proofprofile.net/proofs/artist/4a686fa9-6798-4367-8f30-06a0f071f0cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1b66c723757ce641f29b57d64734ca85948fa79b4549a742d64850272630724a","name":"深海奏汰(CAST:井澤巧麻)","registered_at":"2026-06-16T15:33:15Z","symbol":"NIM1096165","token_address":"0x2d7252584278d031ea384986b375539ff06b0aee","type":"artist","uuid":"4a686fa9-6798-4367-8f30-06a0f071f0cb"}