Alex Van Halen
type: MusicGroup
description: Alexander Arthur Van Halen ( , ; born May 8, 1953) is an American musician who was the drummer and a co-founder of the rock band Van Halen, which was formed in 1972 by Van Halen and his younger brothe
popularity: 17
followers: 215
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb41115fcc1125e60f99c565dee69808c1b2a3adfdfa46be95c20c2c4cf9fa80b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953709
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953709
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d7f5247-a9af-4c17-8309-5c746beb6248.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d7f5247-a9af-4c17-8309-5c746beb6248.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d7f5247-a9af-4c17-8309-5c746beb6248
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:31:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb41115fcc1125e60f99c565dee69808c1b2a3adfdfa46be95c20c2c4cf9fa80b","name":"Alex Van Halen","registered_at":"2026-06-14T17:39:39Z","symbol":"NIM0527286","token_address":"0x73c29f6f84f34be3bca1cb6c720aabb52c1eb4af","type":"artist","uuid":"7d7f5247-a9af-4c17-8309-5c746beb6248"}
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 0xb41115fcc1125e60f99c565dee69808c1b2a3adfdfa46be95c20c2c4cf9fa80b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d7f5247-a9af-4c17-8309-5c746beb6248.json and https://artists.proofprofile.net/proofs/artist/7d7f5247-a9af-4c17-8309-5c746beb6248.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xb41115fcc1125e60f99c565dee69808c1b2a3adfdfa46be95c20c2c4cf9fa80b","name":"Alex Van Halen","registered_at":"2026-06-14T17:39:39Z","symbol":"NIM0527286","token_address":"0x73c29f6f84f34be3bca1cb6c720aabb52c1eb4af","type":"artist","uuid":"7d7f5247-a9af-4c17-8309-5c746beb6248"}