Dada 2
type: MusicGroup
genre: kuduro
popularity: 17
followers: 4736
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29b0aba7ca93139693cc44d69d03cdaa9a325f16ef998519a3e4d37ed46c9762
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a91b3a49-ad62-42a9-ad09-16e607688f05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a91b3a49-ad62-42a9-ad09-16e607688f05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a91b3a49-ad62-42a9-ad09-16e607688f05
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x29b0aba7ca93139693cc44d69d03cdaa9a325f16ef998519a3e4d37ed46c9762","name":"Dada 2","registered_at":"2026-06-14T22:11:09Z","symbol":"NIM0591992","token_address":"0xc260814f81bea013f34fd0777b3d70db7a7d7f88","type":"artist","uuid":"a91b3a49-ad62-42a9-ad09-16e607688f05"}
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 0x29b0aba7ca93139693cc44d69d03cdaa9a325f16ef998519a3e4d37ed46c9762. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a91b3a49-ad62-42a9-ad09-16e607688f05.json and https://artists.proofprofile.net/proofs/artist/a91b3a49-ad62-42a9-ad09-16e607688f05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x29b0aba7ca93139693cc44d69d03cdaa9a325f16ef998519a3e4d37ed46c9762","name":"Dada 2","registered_at":"2026-06-14T22:11:09Z","symbol":"NIM0591992","token_address":"0xc260814f81bea013f34fd0777b3d70db7a7d7f88","type":"artist","uuid":"a91b3a49-ad62-42a9-ad09-16e607688f05"}
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