Chorão
type: MusicGroup
description: Alexandre Magno Abrão (April 9, 1970 – March 6, 2013), known professionally as Chorão, was a Brazilian singer-songwriter, skateboarder, filmmaker, screenwriter and businessman. Best known for being a
popularity: 5
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f673363f81ce5fea0e7cf9e88899876c17c939463d8d3964d1fe9036b7a8a5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954038
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954038
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3dcf0557-ca87-4a6f-8718-6e93291e817a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3dcf0557-ca87-4a6f-8718-6e93291e817a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3dcf0557-ca87-4a6f-8718-6e93291e817a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:57:22Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f673363f81ce5fea0e7cf9e88899876c17c939463d8d3964d1fe9036b7a8a5c","name":"Chorão","registered_at":"2026-06-16T11:05:47Z","symbol":"NIM1032350","token_address":"0x7bc919f8f846ef1ebc2b66adecac74d96723699e","type":"artist","uuid":"3dcf0557-ca87-4a6f-8718-6e93291e817a"}
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 0x2f673363f81ce5fea0e7cf9e88899876c17c939463d8d3964d1fe9036b7a8a5c. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dcf0557-ca87-4a6f-8718-6e93291e817a.json and https://artists.proofprofile.net/proofs/artist/3dcf0557-ca87-4a6f-8718-6e93291e817a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:57:22Z
  text: {"copyright_id":"0x2f673363f81ce5fea0e7cf9e88899876c17c939463d8d3964d1fe9036b7a8a5c","name":"Chorão","registered_at":"2026-06-16T11:05:47Z","symbol":"NIM1032350","token_address":"0x7bc919f8f846ef1ebc2b66adecac74d96723699e","type":"artist","uuid":"3dcf0557-ca87-4a6f-8718-6e93291e817a"}