Alexis Santos
type: MusicGroup
description: Alexis Manaças da Silva SantosPortugueses | Tóquio 2020 | PÚBLICO (born 23 March 1992) is a Portuguese medley swimmer. He competed at the 2015 World Aquatics Championships and at the 2016 Summer Olym
popularity: 6
followers: 112
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a67ce5c6ce2783b6f6768cd7f4416fd4ce71058e41d13b87c36023f97187b5f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3562da4-65da-4a32-a78e-e14da458b32f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3562da4-65da-4a32-a78e-e14da458b32f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3562da4-65da-4a32-a78e-e14da458b32f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6a67ce5c6ce2783b6f6768cd7f4416fd4ce71058e41d13b87c36023f97187b5f","name":"Alexis Santos","registered_at":"2026-06-20T19:55:43Z","symbol":"NIM1700413","token_address":"0x49a32a4d72e1c6403145949fc7f4faee802b4d8a","type":"artist","uuid":"c3562da4-65da-4a32-a78e-e14da458b32f"}
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 0x6a67ce5c6ce2783b6f6768cd7f4416fd4ce71058e41d13b87c36023f97187b5f. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3562da4-65da-4a32-a78e-e14da458b32f.json and https://artists.proofprofile.net/proofs/artist/c3562da4-65da-4a32-a78e-e14da458b32f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x6a67ce5c6ce2783b6f6768cd7f4416fd4ce71058e41d13b87c36023f97187b5f","name":"Alexis Santos","registered_at":"2026-06-20T19:55:43Z","symbol":"NIM1700413","token_address":"0x49a32a4d72e1c6403145949fc7f4faee802b4d8a","type":"artist","uuid":"c3562da4-65da-4a32-a78e-e14da458b32f"}
album: Smile - Single
  type: MusicAlbum
  date published: 2014-02-14
album: Can We Talk? (feat. Chris Scholar) - Single
  type: MusicAlbum
  date published: 2014-08-18
album: Feelings
  type: MusicAlbum
  date published: 2017-05-01