The Upsetters
type: MusicGroup
genre: dub
genre: reggae
genre: rocksteady
genre: roots reggae
description: thumb|The Mighty Upsetter dub show, Flog, Florence, Italy, 2009 The Upsetters were the house band for Jamaican reggae producer Lee "Scratch" Perry. The name of the band comes from Perry's nickname of
popularity: 21
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x744dfecfaeffe4cb1171af494b6ce7cff54c2752b6a038e4de7fbfba5bbd27eb
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/f32be519-bec7-4d90-8986-00182168abfc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f32be519-bec7-4d90-8986-00182168abfc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f32be519-bec7-4d90-8986-00182168abfc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x744dfecfaeffe4cb1171af494b6ce7cff54c2752b6a038e4de7fbfba5bbd27eb","name":"The Upsetters","registered_at":"2026-06-12T13:35:22Z","symbol":"NIM0313321","token_address":"0xe845c8c76f2ccd7f0b4ebe3142553179318094d8","type":"artist","uuid":"f32be519-bec7-4d90-8986-00182168abfc"}
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 0x744dfecfaeffe4cb1171af494b6ce7cff54c2752b6a038e4de7fbfba5bbd27eb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f32be519-bec7-4d90-8986-00182168abfc.json and https://artists.proofprofile.net/proofs/artist/f32be519-bec7-4d90-8986-00182168abfc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x744dfecfaeffe4cb1171af494b6ce7cff54c2752b6a038e4de7fbfba5bbd27eb","name":"The Upsetters","registered_at":"2026-06-12T13:35:22Z","symbol":"NIM0313321","token_address":"0xe845c8c76f2ccd7f0b4ebe3142553179318094d8","type":"artist","uuid":"f32be519-bec7-4d90-8986-00182168abfc"}