Babak Zarrin
type: MusicGroup
description: Babak Zarrin (; ) (born 30 July 1978) is an Iranian composer and songwriter.بیوگرافی بابک زرین در وبگاه رسانهٔ نوا Biography Alireza Shabani Zarrinkafsh was born in 1978 in the city of Rasht, Gui
popularity: 7
followers: 173
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x995eefd0c3b02c0dd36abbcce41292e6bd3ff9e8c6eb433168eb18902121d4fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954013
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954013
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/341fd446-271a-4a44-8d3c-9fb937f16f48.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/341fd446-271a-4a44-8d3c-9fb937f16f48.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/341fd446-271a-4a44-8d3c-9fb937f16f48
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:27:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x995eefd0c3b02c0dd36abbcce41292e6bd3ff9e8c6eb433168eb18902121d4fe","name":"Babak Zarrin","registered_at":"2026-06-16T08:03:36Z","symbol":"NIM0988882","token_address":"0xeefc88eb0c0b983a621895d08a44d09dabc1987d","type":"artist","uuid":"341fd446-271a-4a44-8d3c-9fb937f16f48"}
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 0x995eefd0c3b02c0dd36abbcce41292e6bd3ff9e8c6eb433168eb18902121d4fe. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/341fd446-271a-4a44-8d3c-9fb937f16f48.json and https://artists.proofprofile.net/proofs/artist/341fd446-271a-4a44-8d3c-9fb937f16f48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:27:01Z
  text: {"copyright_id":"0x995eefd0c3b02c0dd36abbcce41292e6bd3ff9e8c6eb433168eb18902121d4fe","name":"Babak Zarrin","registered_at":"2026-06-16T08:03:36Z","symbol":"NIM0988882","token_address":"0xeefc88eb0c0b983a621895d08a44d09dabc1987d","type":"artist","uuid":"341fd446-271a-4a44-8d3c-9fb937f16f48"}
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