The Party Hats
type: MusicGroup
popularity: 18
followers: 104
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7ab94b936e0ad7c0490e2e8c71a4e5784f9c0c5a3cd8fdb565916fb261c23b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4735f674-00fd-4b4d-aa7d-d9ba98ab9691.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4735f674-00fd-4b4d-aa7d-d9ba98ab9691.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4735f674-00fd-4b4d-aa7d-d9ba98ab9691
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb7ab94b936e0ad7c0490e2e8c71a4e5784f9c0c5a3cd8fdb565916fb261c23b1","name":"The Party Hats","registered_at":"2026-06-14T11:55:31Z","symbol":"NIM0445155","token_address":"0xfd66fbe2ef8eb8479bd1a05aa4b601b101503aac","type":"artist","uuid":"4735f674-00fd-4b4d-aa7d-d9ba98ab9691"}
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 0xb7ab94b936e0ad7c0490e2e8c71a4e5784f9c0c5a3cd8fdb565916fb261c23b1. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4735f674-00fd-4b4d-aa7d-d9ba98ab9691.json and https://artists.proofprofile.net/proofs/artist/4735f674-00fd-4b4d-aa7d-d9ba98ab9691.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xb7ab94b936e0ad7c0490e2e8c71a4e5784f9c0c5a3cd8fdb565916fb261c23b1","name":"The Party Hats","registered_at":"2026-06-14T11:55:31Z","symbol":"NIM0445155","token_address":"0xfd66fbe2ef8eb8479bd1a05aa4b601b101503aac","type":"artist","uuid":"4735f674-00fd-4b4d-aa7d-d9ba98ab9691"}
album: More Fun Songs for a Kid's Party
  type: MusicAlbum
  date published: 2018-05-16
album: Fun Songs for a Kid's Party
  type: MusicAlbum
  date published: 2018-05-16