Chris Martin
type: MusicGroup
description: Christopher Anthony John Martin (born 2 March 1977) is an English singer, songwriter, musician and producer. He is best known as the vocalist, pianist and co-founder of the rock band Coldplay. Born i
popularity: 2
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ae048d47a76c26c8f0467326c8b9419754a0a8466cb3905f566a1474bc745ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16864f24-84df-487b-b997-1efde0b3722c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16864f24-84df-487b-b997-1efde0b3722c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/16864f24-84df-487b-b997-1efde0b3722c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ae048d47a76c26c8f0467326c8b9419754a0a8466cb3905f566a1474bc745ac","name":"Chris Martin","registered_at":"2026-06-15T21:38:59Z","symbol":"NIM0839722","token_address":"0x0f5be8e022541c64b4b80655808ec6ee24ace216","type":"artist","uuid":"16864f24-84df-487b-b997-1efde0b3722c"}
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 0x0ae048d47a76c26c8f0467326c8b9419754a0a8466cb3905f566a1474bc745ac. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16864f24-84df-487b-b997-1efde0b3722c.json and https://artists.proofprofile.net/proofs/artist/16864f24-84df-487b-b997-1efde0b3722c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x0ae048d47a76c26c8f0467326c8b9419754a0a8466cb3905f566a1474bc745ac","name":"Chris Martin","registered_at":"2026-06-15T21:38:59Z","symbol":"NIM0839722","token_address":"0x0f5be8e022541c64b4b80655808ec6ee24ace216","type":"artist","uuid":"16864f24-84df-487b-b997-1efde0b3722c"}