Adam Calhoun
type: MusicGroup
description: Adam Bradley Calhoun (born September 5, 1980) is an American rapper, singer, songwriter, and YouTube vlogger. He is active as a social media personality and has released a number of albums. His most s
popularity: 10
followers: 151
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c6c5087f4b616d0f4dd02518267f56178314c3ab4f2d4fd71515d6c33aaf099
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08fbd87d-a7c5-449e-b0e4-88ab5268d8fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/08fbd87d-a7c5-449e-b0e4-88ab5268d8fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/08fbd87d-a7c5-449e-b0e4-88ab5268d8fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c6c5087f4b616d0f4dd02518267f56178314c3ab4f2d4fd71515d6c33aaf099","name":"Adam Calhoun","registered_at":"2026-06-15T16:43:43Z","symbol":"NIM0769285","token_address":"0xc871e16296e7664770a7cdd1a529edd043433179","type":"artist","uuid":"08fbd87d-a7c5-449e-b0e4-88ab5268d8fa"}
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 0x0c6c5087f4b616d0f4dd02518267f56178314c3ab4f2d4fd71515d6c33aaf099. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08fbd87d-a7c5-449e-b0e4-88ab5268d8fa.json and https://artists.proofprofile.net/proofs/artist/08fbd87d-a7c5-449e-b0e4-88ab5268d8fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:57:35Z
  text: {"copyright_id":"0x0c6c5087f4b616d0f4dd02518267f56178314c3ab4f2d4fd71515d6c33aaf099","name":"Adam Calhoun","registered_at":"2026-06-15T16:43:43Z","symbol":"NIM0769285","token_address":"0xc871e16296e7664770a7cdd1a529edd043433179","type":"artist","uuid":"08fbd87d-a7c5-449e-b0e4-88ab5268d8fa"}