National Anthem - Star Spangled Banner
type: MusicGroup
popularity: 22
followers: 2900
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85b8d31d644cbe8e8d70d2e735d873aae030118d32ce9eef89509c8f3d1d5e16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5012a02-4191-4904-abcd-8cb72a7ee15f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5012a02-4191-4904-abcd-8cb72a7ee15f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5012a02-4191-4904-abcd-8cb72a7ee15f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x85b8d31d644cbe8e8d70d2e735d873aae030118d32ce9eef89509c8f3d1d5e16","name":"National Anthem - Star Spangled Banner","registered_at":"2026-06-12T12:17:36Z","symbol":"NIM0295394","token_address":"0xbe71ee77c16a0002040d12d80925475d9917ab15","type":"artist","uuid":"e5012a02-4191-4904-abcd-8cb72a7ee15f"}
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 0x85b8d31d644cbe8e8d70d2e735d873aae030118d32ce9eef89509c8f3d1d5e16. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5012a02-4191-4904-abcd-8cb72a7ee15f.json and https://artists.proofprofile.net/proofs/artist/e5012a02-4191-4904-abcd-8cb72a7ee15f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x85b8d31d644cbe8e8d70d2e735d873aae030118d32ce9eef89509c8f3d1d5e16","name":"National Anthem - Star Spangled Banner","registered_at":"2026-06-12T12:17:36Z","symbol":"NIM0295394","token_address":"0xbe71ee77c16a0002040d12d80925475d9917ab15","type":"artist","uuid":"e5012a02-4191-4904-abcd-8cb72a7ee15f"}
album: U.S.A. - H.D. - Single
  type: MusicAlbum
  date published: 2012-01-13
album: Star-Spangled Banner & Other USA Songs
  type: MusicAlbum
  date published: 2021-04-27