Last Christmas
type: MusicGroup
description: "Last Christmas" is a song by the English duo Wham!, released on 3 December 1984 via CBS Records internationally and as a double A-side via Epic Records with "Everything She Wants" in multiple Europea
popularity: 4
followers: 2002
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x808ca36f7467b6130c519efbda45e9282a6eadea8de63afb5ea264320a09b3ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x808ca36f7467b6130c519efbda45e9282a6eadea8de63afb5ea264320a09b3ab","name":"Last Christmas","registered_at":"2026-06-17T03:29:50Z","symbol":"NIM1267126","token_address":"0x03775a719c970d0096d1f877e5f29c25f661b180","type":"artist","uuid":"6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3"}
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 0x808ca36f7467b6130c519efbda45e9282a6eadea8de63afb5ea264320a09b3ab. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3.json and https://artists.proofprofile.net/proofs/artist/6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x808ca36f7467b6130c519efbda45e9282a6eadea8de63afb5ea264320a09b3ab","name":"Last Christmas","registered_at":"2026-06-17T03:29:50Z","symbol":"NIM1267126","token_address":"0x03775a719c970d0096d1f877e5f29c25f661b180","type":"artist","uuid":"6ca5716a-eeb7-4a0a-bf24-3ee3f851c0f3"}
album: Last Christmas
  type: MusicAlbum
  date published: 2011-09-23
album: Hits at Christmas
  type: MusicAlbum
  date published: 2015-12-25
album: Last Christmas (Instrumental Versions)
  type: MusicAlbum
  date published: 2018-12-27