Sam Campbell
type: MusicGroup
description: REDIRECT Samuel Campbell
popularity: 2
followers: 303
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc99198d998d8eef5b9e3c115aaa19062d76ccc0090c780b7bcfe17e1cf50d77d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5dbc7356-5155-4f67-aad5-21698a2862f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5dbc7356-5155-4f67-aad5-21698a2862f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5dbc7356-5155-4f67-aad5-21698a2862f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc99198d998d8eef5b9e3c115aaa19062d76ccc0090c780b7bcfe17e1cf50d77d","name":"Sam Campbell","registered_at":"2026-06-16T22:19:48Z","symbol":"NIM1193158","token_address":"0x81242f30fccde36ac029f550bbd19566501f90a1","type":"artist","uuid":"5dbc7356-5155-4f67-aad5-21698a2862f3"}
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 0xc99198d998d8eef5b9e3c115aaa19062d76ccc0090c780b7bcfe17e1cf50d77d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dbc7356-5155-4f67-aad5-21698a2862f3.json and https://artists.proofprofile.net/proofs/artist/5dbc7356-5155-4f67-aad5-21698a2862f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc99198d998d8eef5b9e3c115aaa19062d76ccc0090c780b7bcfe17e1cf50d77d","name":"Sam Campbell","registered_at":"2026-06-16T22:19:48Z","symbol":"NIM1193158","token_address":"0x81242f30fccde36ac029f550bbd19566501f90a1","type":"artist","uuid":"5dbc7356-5155-4f67-aad5-21698a2862f3"}
album: Happy Ever After
  type: MusicAlbum
  date published: 2024-07-26
album: I'll Be Waiting For You
  type: MusicAlbum
  date published: 2024-11-22
album: Wasting My Time
  type: MusicAlbum
  date published: 2024-11-29