Ivan Barias
type: MusicGroup
description: Ivan Barias is part of the Philadelphia production duo Carvin & Ivan. Initially starting out as a solo hip hop artist, he moved into production and songwriting. He has written and produced songs for a
popularity: 12
followers: 74
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c0546d1941b0ee028b199294a4260f44c822991fb6aebe5eb78cccc9f2cf495
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953759
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953759
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8867db4-78cf-4240-825d-d19d2e86b847.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8867db4-78cf-4240-825d-d19d2e86b847.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8867db4-78cf-4240-825d-d19d2e86b847
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:04:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c0546d1941b0ee028b199294a4260f44c822991fb6aebe5eb78cccc9f2cf495","name":"Ivan Barias","registered_at":"2026-06-14T23:51:01Z","symbol":"NIM0615826","token_address":"0xc253fcc3ecba139073500a1e265425fb03807d4b","type":"artist","uuid":"b8867db4-78cf-4240-825d-d19d2e86b847"}
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 0x3c0546d1941b0ee028b199294a4260f44c822991fb6aebe5eb78cccc9f2cf495. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8867db4-78cf-4240-825d-d19d2e86b847.json and https://artists.proofprofile.net/proofs/artist/b8867db4-78cf-4240-825d-d19d2e86b847.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:04:42Z
  text: {"copyright_id":"0x3c0546d1941b0ee028b199294a4260f44c822991fb6aebe5eb78cccc9f2cf495","name":"Ivan Barias","registered_at":"2026-06-14T23:51:01Z","symbol":"NIM0615826","token_address":"0xc253fcc3ecba139073500a1e265425fb03807d4b","type":"artist","uuid":"b8867db4-78cf-4240-825d-d19d2e86b847"}