The 12/21
type: MusicGroup
genre: opm
genre: pinoy rock
popularity: 2
followers: 397
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb4819d9cca054143c0f32af0e5dd03e23f9008536a88a5e989c91fa5b5a8a9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf656f5c-d980-4ea6-a0d7-d93cb38c10bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf656f5c-d980-4ea6-a0d7-d93cb38c10bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf656f5c-d980-4ea6-a0d7-d93cb38c10bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb4819d9cca054143c0f32af0e5dd03e23f9008536a88a5e989c91fa5b5a8a9d","name":"The 12/21","registered_at":"2026-06-20T18:59:58Z","symbol":"NIM1683964","token_address":"0xf1e7a6f8e0c2106ffe3141bba7d64c0276e3d9d6","type":"artist","uuid":"bf656f5c-d980-4ea6-a0d7-d93cb38c10bc"}
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 0xeb4819d9cca054143c0f32af0e5dd03e23f9008536a88a5e989c91fa5b5a8a9d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf656f5c-d980-4ea6-a0d7-d93cb38c10bc.json and https://artists.proofprofile.net/proofs/artist/bf656f5c-d980-4ea6-a0d7-d93cb38c10bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xeb4819d9cca054143c0f32af0e5dd03e23f9008536a88a5e989c91fa5b5a8a9d","name":"The 12/21","registered_at":"2026-06-20T18:59:58Z","symbol":"NIM1683964","token_address":"0xf1e7a6f8e0c2106ffe3141bba7d64c0276e3d9d6","type":"artist","uuid":"bf656f5c-d980-4ea6-a0d7-d93cb38c10bc"}
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