Chris Martin
type: MusicGroup
genre: dancehall
genre: reggae
genre: riddim
genre: roots reggae
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: 27
followers: 2849
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f1244895bcbc51516dc3a7f46fb48c7a5a7e8652d9272859cdda7ee68127966
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/995739f6-57e2-4386-910a-cb9e1e2b02c1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/995739f6-57e2-4386-910a-cb9e1e2b02c1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/995739f6-57e2-4386-910a-cb9e1e2b02c1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7f1244895bcbc51516dc3a7f46fb48c7a5a7e8652d9272859cdda7ee68127966","name":"Chris Martin","registered_at":"2026-06-12T05:18:52Z","symbol":"NIM0198469","token_address":"0xc9bc8b8ea3dcb89696cc59da9171bfcdb049ecc0","type":"artist","uuid":"995739f6-57e2-4386-910a-cb9e1e2b02c1"}
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 0x7f1244895bcbc51516dc3a7f46fb48c7a5a7e8652d9272859cdda7ee68127966. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/995739f6-57e2-4386-910a-cb9e1e2b02c1.json and https://artists.proofprofile.net/proofs/artist/995739f6-57e2-4386-910a-cb9e1e2b02c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x7f1244895bcbc51516dc3a7f46fb48c7a5a7e8652d9272859cdda7ee68127966","name":"Chris Martin","registered_at":"2026-06-12T05:18:52Z","symbol":"NIM0198469","token_address":"0xc9bc8b8ea3dcb89696cc59da9171bfcdb049ecc0","type":"artist","uuid":"995739f6-57e2-4386-910a-cb9e1e2b02c1"}
album: Mi Friend Dem
  type: MusicAlbum
  date published: 2012-12-12