Lenny Marcus
type: MusicGroup
popularity: 3
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e54d8a713a141cd2cdd2420c709600b8aa45d5902a7cb7b492e8050fd981ded
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9359e4f6-9ca0-4a4a-823e-2b13dacad7ef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9359e4f6-9ca0-4a4a-823e-2b13dacad7ef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9359e4f6-9ca0-4a4a-823e-2b13dacad7ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e54d8a713a141cd2cdd2420c709600b8aa45d5902a7cb7b492e8050fd981ded","name":"Lenny Marcus","registered_at":"2026-06-17T17:04:10Z","symbol":"NIM1461303","token_address":"0x7c0832c5857eecb100c56e0ae12692defcfa1816","type":"artist","uuid":"9359e4f6-9ca0-4a4a-823e-2b13dacad7ef"}
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 0x8e54d8a713a141cd2cdd2420c709600b8aa45d5902a7cb7b492e8050fd981ded. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9359e4f6-9ca0-4a4a-823e-2b13dacad7ef.json and https://artists.proofprofile.net/proofs/artist/9359e4f6-9ca0-4a4a-823e-2b13dacad7ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x8e54d8a713a141cd2cdd2420c709600b8aa45d5902a7cb7b492e8050fd981ded","name":"Lenny Marcus","registered_at":"2026-06-17T17:04:10Z","symbol":"NIM1461303","token_address":"0x7c0832c5857eecb100c56e0ae12692defcfa1816","type":"artist","uuid":"9359e4f6-9ca0-4a4a-823e-2b13dacad7ef"}
album: Bat in the Hat
  type: MusicAlbum
  date published: 1983-01-01
album: Remember Infinity
  type: MusicAlbum
  date published: 1996-01-01
album: A Different Shade of Blue
  type: MusicAlbum
  date published: 1997-01-01
album: Jazzaphrenia
  type: MusicAlbum
  date published: 2000-01-01
album: Jazz Tonight
  type: MusicAlbum
  date published: 2002-01-01
album: Cathexis
  type: MusicAlbum
  date published: 2004-01-01
album: Jazz Time
  type: MusicAlbum
  date published: 2006-01-01
album: In The Middle Of The Night
  type: MusicAlbum
  date published: 2007-08-17
album: Waterdrops
  type: MusicAlbum
  date published: 2008-12-05
album: Winter's Spring
  type: MusicAlbum
  date published: 2009-09-08
album: in the still of the day- solo piano works
  type: MusicAlbum
  date published: 2009-09-15
album: Trapped in a Good Life
  type: MusicAlbum
  date published: 2009-09-15
album: Twilight Moods
  type: MusicAlbum
  date published: 2009-09-29
album: Lenny Marcus and the Big Easy
  type: MusicAlbum
  date published: 2010-08-10
album: The Jazz of Beethoven
  type: MusicAlbum
  date published: 2011-08-02
album: Distant Dream
  type: MusicAlbum
  date published: 2012-04-03
album: Good Day for a Journey
  type: MusicAlbum
  date published: 2017-04-25