中川敬(ソウル・フラワー・ユニオン)
type: MusicGroup
genre: j-rock
popularity: 28
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd774ae5a6aba2ba6df5d09899422d100361924ae5cf9d1a7432a06e027d9f3d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1f982b0-dde1-4686-ad12-ec2aac606526.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1f982b0-dde1-4686-ad12-ec2aac606526.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1f982b0-dde1-4686-ad12-ec2aac606526
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd774ae5a6aba2ba6df5d09899422d100361924ae5cf9d1a7432a06e027d9f3d1","name":"中川敬(ソウル・フラワー・ユニオン)","registered_at":"2026-06-12T11:59:56Z","symbol":"NIM0291321","token_address":"0x58f6ba029a529a8079b9b7f5987f23da971a7ff8","type":"artist","uuid":"e1f982b0-dde1-4686-ad12-ec2aac606526"}
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 0xd774ae5a6aba2ba6df5d09899422d100361924ae5cf9d1a7432a06e027d9f3d1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1f982b0-dde1-4686-ad12-ec2aac606526.json and https://artists.proofprofile.net/proofs/artist/e1f982b0-dde1-4686-ad12-ec2aac606526.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xd774ae5a6aba2ba6df5d09899422d100361924ae5cf9d1a7432a06e027d9f3d1","name":"中川敬(ソウル・フラワー・ユニオン)","registered_at":"2026-06-12T11:59:56Z","symbol":"NIM0291321","token_address":"0x58f6ba029a529a8079b9b7f5987f23da971a7ff8","type":"artist","uuid":"e1f982b0-dde1-4686-ad12-ec2aac606526"}