Big 9
type: MusicGroup
popularity: 3
followers: 572
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdfbc3eb0be5dbe64abeb62220b461ee747c9e7643dd11e786a24502503e43336
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0560e719-fde0-4f9a-a309-eea39dbd8212.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0560e719-fde0-4f9a-a309-eea39dbd8212.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0560e719-fde0-4f9a-a309-eea39dbd8212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdfbc3eb0be5dbe64abeb62220b461ee747c9e7643dd11e786a24502503e43336","name":"Big 9","registered_at":"2026-06-15T15:18:07Z","symbol":"NIM0748841","token_address":"0x6d9e469b445f6ed586bd62bb68d7c6a66dd2519a","type":"artist","uuid":"0560e719-fde0-4f9a-a309-eea39dbd8212"}
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 0xdfbc3eb0be5dbe64abeb62220b461ee747c9e7643dd11e786a24502503e43336. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0560e719-fde0-4f9a-a309-eea39dbd8212.json and https://artists.proofprofile.net/proofs/artist/0560e719-fde0-4f9a-a309-eea39dbd8212.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xdfbc3eb0be5dbe64abeb62220b461ee747c9e7643dd11e786a24502503e43336","name":"Big 9","registered_at":"2026-06-15T15:18:07Z","symbol":"NIM0748841","token_address":"0x6d9e469b445f6ed586bd62bb68d7c6a66dd2519a","type":"artist","uuid":"0560e719-fde0-4f9a-a309-eea39dbd8212"}
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