Walter Spencer
type: MusicGroup
popularity: 2
followers: 151
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e8d37c254a4d1bb00d3a2c6155cf2de4c4e8faf43e8a287e77dcb4ad2634314
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6e8d37c254a4d1bb00d3a2c6155cf2de4c4e8faf43e8a287e77dcb4ad2634314","name":"Walter Spencer","registered_at":"2026-06-16T13:17:18Z","symbol":"NIM1063714","token_address":"0xa9834572de5dcf0330293a72ffa379c7df48bca1","type":"artist","uuid":"440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d"}
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 0x6e8d37c254a4d1bb00d3a2c6155cf2de4c4e8faf43e8a287e77dcb4ad2634314. 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/440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d.json and https://artists.proofprofile.net/proofs/artist/440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x6e8d37c254a4d1bb00d3a2c6155cf2de4c4e8faf43e8a287e77dcb4ad2634314","name":"Walter Spencer","registered_at":"2026-06-16T13:17:18Z","symbol":"NIM1063714","token_address":"0xa9834572de5dcf0330293a72ffa379c7df48bca1","type":"artist","uuid":"440b5afe-bfd2-4c7f-bb5d-d90f2d12b35d"}
album: A Sunday Night Roast
  type: MusicAlbum
  date published: 2010-01-01
album: Red Romance
  type: MusicAlbum
  date published: 2012-01-11
album: Love Is the Balm
  type: MusicAlbum
  date published: 2013-03-14
album: I'm a Clown
  type: MusicAlbum
  date published: 2014-10-07
album: Love Drunk
  type: MusicAlbum
  date published: 2016-12-08
album: I Got Books To Read
  type: MusicAlbum
  date published: 2023-02-17
album: En el Pueblo de Nuestra Señora la Reina de los Angeles
  type: MusicAlbum
  date published: 2023-09-05
album: LE Reveillon
  type: MusicAlbum
  date published: 2023-12-15