Martin Sheen
type: MusicGroup
description: Ramón Gerard Antonio Estévez (born August 3, 1940), known professionally as Martin Sheen, is an American actor. His work spans more than six decades of television and film, and his accolades include t
popularity: 7
followers: 348
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5eb98e1d3b931d7616f647eadcdbe743cb2b2b055138b6c38c592b8c26e0eeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa5eb98e1d3b931d7616f647eadcdbe743cb2b2b055138b6c38c592b8c26e0eeb","name":"Martin Sheen","registered_at":"2026-06-21T18:03:17Z","symbol":"NIM1996111","token_address":"0x8332642fd173cd8ad3eccc0fd46d288fada7b3fc","type":"artist","uuid":"fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a"}
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 0xa5eb98e1d3b931d7616f647eadcdbe743cb2b2b055138b6c38c592b8c26e0eeb. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a.json and https://artists.proofprofile.net/proofs/artist/fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xa5eb98e1d3b931d7616f647eadcdbe743cb2b2b055138b6c38c592b8c26e0eeb","name":"Martin Sheen","registered_at":"2026-06-21T18:03:17Z","symbol":"NIM1996111","token_address":"0x8332642fd173cd8ad3eccc0fd46d288fada7b3fc","type":"artist","uuid":"fcdd7fa0-ce96-4b2c-87eb-ef2cb676cf3a"}