Jeff Cohen
type: MusicGroup
popularity: 6
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x090149d52a3149da6bfc768ae3b6ab70616f045ee81170b6ce48a564bdedb011
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0daec695-1c2d-40f6-b54e-e2748b4ea4e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0daec695-1c2d-40f6-b54e-e2748b4ea4e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0daec695-1c2d-40f6-b54e-e2748b4ea4e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x090149d52a3149da6bfc768ae3b6ab70616f045ee81170b6ce48a564bdedb011","name":"Jeff Cohen","registered_at":"2026-06-15T18:31:12Z","symbol":"NIM0794935","token_address":"0x706362b71c88bf0b98a32bb1c71e79b8b86dab11","type":"artist","uuid":"0daec695-1c2d-40f6-b54e-e2748b4ea4e1"}
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 0x090149d52a3149da6bfc768ae3b6ab70616f045ee81170b6ce48a564bdedb011. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0daec695-1c2d-40f6-b54e-e2748b4ea4e1.json and https://artists.proofprofile.net/proofs/artist/0daec695-1c2d-40f6-b54e-e2748b4ea4e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x090149d52a3149da6bfc768ae3b6ab70616f045ee81170b6ce48a564bdedb011","name":"Jeff Cohen","registered_at":"2026-06-15T18:31:12Z","symbol":"NIM0794935","token_address":"0x706362b71c88bf0b98a32bb1c71e79b8b86dab11","type":"artist","uuid":"0daec695-1c2d-40f6-b54e-e2748b4ea4e1"}
album: Walk Tall
  type: MusicAlbum
  date published: 2024-03-08
album: The Way You Look At Me
  type: MusicAlbum
  date published: 2024-10-10
album: I See Stars
  type: MusicAlbum
  date published: 2025-03-12
album: Playing G-D
  type: MusicAlbum
  date published: 2025-10-17