Lean
type: MusicGroup
popularity: 8
followers: 148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc544a9be4bd7d1ab9f2aaefd40a7da95ee9f743bca8d57d68061d8b1e9541354
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd57118d-d823-431b-8de8-c7199f3b27b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd57118d-d823-431b-8de8-c7199f3b27b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd57118d-d823-431b-8de8-c7199f3b27b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
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 0xc544a9be4bd7d1ab9f2aaefd40a7da95ee9f743bca8d57d68061d8b1e9541354. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd57118d-d823-431b-8de8-c7199f3b27b0.json and https://artists.proofprofile.net/proofs/artist/fd57118d-d823-431b-8de8-c7199f3b27b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
album: Lockstoff
  type: MusicAlbum
  date published: 2009-02-27
album: Lean Drink Saturday Night Live
  type: MusicAlbum
  date published: 2009-06-01
album: Toilet Water
  type: MusicAlbum
  date published: 2013-11-11
album: Desire
  type: MusicAlbum
  date published: 2015-04-16
album: Lean over Ice
  type: MusicAlbum
  date published: 2016-07-08
album: Count It Up
  type: MusicAlbum
  date published: 2017-12-17
album: Plan Tranqui
  type: MusicAlbum
  date published: 2024-03-02
album: Ella
  type: MusicAlbum
  date published: 2024-07-08
album: Leanograff
  type: MusicAlbum
  date published: 2024-09-21
album: D_cup
  type: MusicAlbum
  date published: 2024-09-27