Spread Beaver
type: MusicGroup
genre: j-pop
genre: j-rock
genre: visual kei
popularity: 40
followers: 972
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa359f63121756a055c4d68f729c59f394f75aa4bfd7ed8e8120f9cb14bf7ddbf
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/93ac7644-496c-4bad-8cde-98378f3130ac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/93ac7644-496c-4bad-8cde-98378f3130ac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/93ac7644-496c-4bad-8cde-98378f3130ac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa359f63121756a055c4d68f729c59f394f75aa4bfd7ed8e8120f9cb14bf7ddbf","name":"Spread Beaver","registered_at":"2026-06-12T04:50:10Z","symbol":"NIM0191864","token_address":"0xe4a1568c65e55af039196c8570324d1294fd9425","type":"artist","uuid":"93ac7644-496c-4bad-8cde-98378f3130ac"}
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 0xa359f63121756a055c4d68f729c59f394f75aa4bfd7ed8e8120f9cb14bf7ddbf. 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/93ac7644-496c-4bad-8cde-98378f3130ac.json and https://artists.proofprofile.net/proofs/artist/93ac7644-496c-4bad-8cde-98378f3130ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa359f63121756a055c4d68f729c59f394f75aa4bfd7ed8e8120f9cb14bf7ddbf","name":"Spread Beaver","registered_at":"2026-06-12T04:50:10Z","symbol":"NIM0191864","token_address":"0xe4a1568c65e55af039196c8570324d1294fd9425","type":"artist","uuid":"93ac7644-496c-4bad-8cde-98378f3130ac"}