Melissa Hasin
type: MusicGroup
description: Melissa "Missy" Hasin (born November 3, 1954) is an American cellist who was raised in Newport Beach, California. Biography Although her parents wanted her to stick with classical music, she played
popularity: 3
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x657d358e63a6094bc0242ac1641d0fc516be68971599b15a2041f672e3c0f40f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7911ebe-6f26-4bb0-a414-a1096359ca7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7911ebe-6f26-4bb0-a414-a1096359ca7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7911ebe-6f26-4bb0-a414-a1096359ca7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x657d358e63a6094bc0242ac1641d0fc516be68971599b15a2041f672e3c0f40f","name":"Melissa Hasin","registered_at":"2026-06-21T09:20:13Z","symbol":"NIM1882864","token_address":"0x9d7daaebdb839d54713bb038dbc8d82e0c15422c","type":"artist","uuid":"e7911ebe-6f26-4bb0-a414-a1096359ca7c"}
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 0x657d358e63a6094bc0242ac1641d0fc516be68971599b15a2041f672e3c0f40f. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7911ebe-6f26-4bb0-a414-a1096359ca7c.json and https://artists.proofprofile.net/proofs/artist/e7911ebe-6f26-4bb0-a414-a1096359ca7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x657d358e63a6094bc0242ac1641d0fc516be68971599b15a2041f672e3c0f40f","name":"Melissa Hasin","registered_at":"2026-06-21T09:20:13Z","symbol":"NIM1882864","token_address":"0x9d7daaebdb839d54713bb038dbc8d82e0c15422c","type":"artist","uuid":"e7911ebe-6f26-4bb0-a414-a1096359ca7c"}