El Grupo Macombo
type: MusicGroup
genre: cumbia
popularity: 2
followers: 111
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69e71a0789ce67fc37ad72444f3b8add9d750e7e269b3b4252e0dc81c67a6a7d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/918275d4-d8a6-4f0b-b897-c7ada39c9106.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/918275d4-d8a6-4f0b-b897-c7ada39c9106.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/918275d4-d8a6-4f0b-b897-c7ada39c9106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x69e71a0789ce67fc37ad72444f3b8add9d750e7e269b3b4252e0dc81c67a6a7d","name":"El Grupo Macombo","registered_at":"2026-06-17T16:11:28Z","symbol":"NIM1448736","token_address":"0x4ffad909996f6a68cc81c5fea7572a928d30584d","type":"artist","uuid":"918275d4-d8a6-4f0b-b897-c7ada39c9106"}
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 0x69e71a0789ce67fc37ad72444f3b8add9d750e7e269b3b4252e0dc81c67a6a7d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/918275d4-d8a6-4f0b-b897-c7ada39c9106.json and https://artists.proofprofile.net/proofs/artist/918275d4-d8a6-4f0b-b897-c7ada39c9106.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x69e71a0789ce67fc37ad72444f3b8add9d750e7e269b3b4252e0dc81c67a6a7d","name":"El Grupo Macombo","registered_at":"2026-06-17T16:11:28Z","symbol":"NIM1448736","token_address":"0x4ffad909996f6a68cc81c5fea7572a928d30584d","type":"artist","uuid":"918275d4-d8a6-4f0b-b897-c7ada39c9106"}
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