Los Angeles
type: MusicGroup
genre: album rock
genre: arena rock
description: Los Angeles (often referred to by its initials, LA) is the most populous city in the U.S. state of California, and the commercial, financial, and cultural center of Southern California. With an estima
popularity: 5
followers: 392
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8270d8fa060c522c4e87f64f4b5ffb76f408a451fd2e28e5eff946916e029ca2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87f04669-2865-4cec-b36a-840c92b4e8ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87f04669-2865-4cec-b36a-840c92b4e8ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87f04669-2865-4cec-b36a-840c92b4e8ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8270d8fa060c522c4e87f64f4b5ffb76f408a451fd2e28e5eff946916e029ca2","name":"Los Angeles","registered_at":"2026-06-17T12:51:07Z","symbol":"NIM1400907","token_address":"0x301034570c772d7d64547085b60de4fddcaeb427","type":"artist","uuid":"87f04669-2865-4cec-b36a-840c92b4e8ae"}
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 0x8270d8fa060c522c4e87f64f4b5ffb76f408a451fd2e28e5eff946916e029ca2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87f04669-2865-4cec-b36a-840c92b4e8ae.json and https://artists.proofprofile.net/proofs/artist/87f04669-2865-4cec-b36a-840c92b4e8ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x8270d8fa060c522c4e87f64f4b5ffb76f408a451fd2e28e5eff946916e029ca2","name":"Los Angeles","registered_at":"2026-06-17T12:51:07Z","symbol":"NIM1400907","token_address":"0x301034570c772d7d64547085b60de4fddcaeb427","type":"artist","uuid":"87f04669-2865-4cec-b36a-840c92b4e8ae"}
album: Los Angeles
  type: MusicAlbum
  date published: 2007-07-06
album: Neverland
  type: MusicAlbum
  date published: 2009-12-07
album: Love Affection
  type: MusicAlbum
  date published: 2013-05-22