Polo Brian
type: MusicGroup
popularity: 18
followers: 537
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3519d7d4b69d53cb92ad25f6e6e3dccb66fee6f899b24f7f54796248ba236d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75c4a561-8cfe-4682-9260-588416e55a8d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75c4a561-8cfe-4682-9260-588416e55a8d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75c4a561-8cfe-4682-9260-588416e55a8d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb3519d7d4b69d53cb92ad25f6e6e3dccb66fee6f899b24f7f54796248ba236d5","name":"Polo Brian","registered_at":"2026-06-14T16:52:48Z","symbol":"NIM0516108","token_address":"0x95dcafeedfa63b326f2d86d7276e6a1182f5bbd0","type":"artist","uuid":"75c4a561-8cfe-4682-9260-588416e55a8d"}
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 0xb3519d7d4b69d53cb92ad25f6e6e3dccb66fee6f899b24f7f54796248ba236d5. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75c4a561-8cfe-4682-9260-588416e55a8d.json and https://artists.proofprofile.net/proofs/artist/75c4a561-8cfe-4682-9260-588416e55a8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:16:40Z
  text: {"copyright_id":"0xb3519d7d4b69d53cb92ad25f6e6e3dccb66fee6f899b24f7f54796248ba236d5","name":"Polo Brian","registered_at":"2026-06-14T16:52:48Z","symbol":"NIM0516108","token_address":"0x95dcafeedfa63b326f2d86d7276e6a1182f5bbd0","type":"artist","uuid":"75c4a561-8cfe-4682-9260-588416e55a8d"}
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  type: MusicAlbum
  date published: 2019-03-10
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  date published: 2019-08-05
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  type: MusicAlbum
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