Out Last
type: MusicGroup
popularity: 2
followers: 790
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6536bec6b75d0779b8c5c1184994a53731c172c09dc1fec4adb3c04494f5371
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/8db3c596-d180-46ba-becc-76bfe75a4110.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8db3c596-d180-46ba-becc-76bfe75a4110.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8db3c596-d180-46ba-becc-76bfe75a4110
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd6536bec6b75d0779b8c5c1184994a53731c172c09dc1fec4adb3c04494f5371","name":"Out Last","registered_at":"2026-06-17T15:27:42Z","symbol":"NIM1438273","token_address":"0x467618d77d20631ee66a0c1f157db2472474c2a3","type":"artist","uuid":"8db3c596-d180-46ba-becc-76bfe75a4110"}
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 0xd6536bec6b75d0779b8c5c1184994a53731c172c09dc1fec4adb3c04494f5371. 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/8db3c596-d180-46ba-becc-76bfe75a4110.json and https://artists.proofprofile.net/proofs/artist/8db3c596-d180-46ba-becc-76bfe75a4110.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xd6536bec6b75d0779b8c5c1184994a53731c172c09dc1fec4adb3c04494f5371","name":"Out Last","registered_at":"2026-06-17T15:27:42Z","symbol":"NIM1438273","token_address":"0x467618d77d20631ee66a0c1f157db2472474c2a3","type":"artist","uuid":"8db3c596-d180-46ba-becc-76bfe75a4110"}
album: Self / /Medicated
  type: MusicAlbum
  date published: 2017-06-28
album: Self / / Medicated
  type: MusicAlbum
  date published: 2018-03-17
album: Reborn
  type: MusicAlbum
  date published: 2019-09-13
album: Speed Me Up
  type: MusicAlbum
  date published: 2020-06-05
album: Reflections
  type: MusicAlbum
  date published: 2022-06-26