El Macho
type: MusicGroup
description: El Macho (also known as Macho Killers) is a 1977 Italian-Argentine Spaghetti Western film written and directed by Marcello Andrei and starring Carlos Monzón, George Hilton, Malisa Longo and Susana Gim
popularity: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x151d597d5e62ca89ae74f4a2b0241be2c6d47dae4993ac5237f06d804774e1ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954002
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954002
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3231eaf2-2b36-421d-9bad-9e298f27470a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3231eaf2-2b36-421d-9bad-9e298f27470a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3231eaf2-2b36-421d-9bad-9e298f27470a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:47:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x151d597d5e62ca89ae74f4a2b0241be2c6d47dae4993ac5237f06d804774e1ed","name":"El Macho","registered_at":"2026-06-16T07:03:00Z","symbol":"NIM0974401","token_address":"0xf2432713f5a664885348c39432af5ebfb8dbdd6f","type":"artist","uuid":"3231eaf2-2b36-421d-9bad-9e298f27470a"}
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 0x151d597d5e62ca89ae74f4a2b0241be2c6d47dae4993ac5237f06d804774e1ed. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3231eaf2-2b36-421d-9bad-9e298f27470a.json and https://artists.proofprofile.net/proofs/artist/3231eaf2-2b36-421d-9bad-9e298f27470a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x151d597d5e62ca89ae74f4a2b0241be2c6d47dae4993ac5237f06d804774e1ed","name":"El Macho","registered_at":"2026-06-16T07:03:00Z","symbol":"NIM0974401","token_address":"0xf2432713f5a664885348c39432af5ebfb8dbdd6f","type":"artist","uuid":"3231eaf2-2b36-421d-9bad-9e298f27470a"}