Jason Alexander
type: MusicGroup
description: Jay Scott Greenspan (born September 23, 1959), known professionally as Jason Alexander, is an American actor and comedian. Over the course of his career, he has received an Emmy Award and a Tony Award
popularity: 30
followers: 615
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4257d15c526904c4be8f433e1d3af2a98ccc5f3d5627bd8e2c518462824f189b
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/e11f5952-ef66-4450-a9a7-d9e91372f8ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e11f5952-ef66-4450-a9a7-d9e91372f8ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e11f5952-ef66-4450-a9a7-d9e91372f8ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4257d15c526904c4be8f433e1d3af2a98ccc5f3d5627bd8e2c518462824f189b","name":"Jason Alexander","registered_at":"2026-06-12T11:54:09Z","symbol":"NIM0289987","token_address":"0x1d29757ba5ce7f62de67423537adc80a228f44a3","type":"artist","uuid":"e11f5952-ef66-4450-a9a7-d9e91372f8ab"}
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 0x4257d15c526904c4be8f433e1d3af2a98ccc5f3d5627bd8e2c518462824f189b. 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/e11f5952-ef66-4450-a9a7-d9e91372f8ab.json and https://artists.proofprofile.net/proofs/artist/e11f5952-ef66-4450-a9a7-d9e91372f8ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4257d15c526904c4be8f433e1d3af2a98ccc5f3d5627bd8e2c518462824f189b","name":"Jason Alexander","registered_at":"2026-06-12T11:54:09Z","symbol":"NIM0289987","token_address":"0x1d29757ba5ce7f62de67423537adc80a228f44a3","type":"artist","uuid":"e11f5952-ef66-4450-a9a7-d9e91372f8ab"}