Martin Klein
type: MusicGroup
popularity: 6
followers: 1124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73e5bdc31e947145b9379d63ff7e7667b98f9064e610a129e4af92ac1575b3ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56bc2b34-5b52-4f58-9602-1adbdef8c535.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56bc2b34-5b52-4f58-9602-1adbdef8c535.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56bc2b34-5b52-4f58-9602-1adbdef8c535
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73e5bdc31e947145b9379d63ff7e7667b98f9064e610a129e4af92ac1575b3ff","name":"Martin Klein","registered_at":"2026-06-16T19:47:39Z","symbol":"NIM1156857","token_address":"0x3e139b68418a5f3eccdcc95f5d1dcd7b948f56ed","type":"artist","uuid":"56bc2b34-5b52-4f58-9602-1adbdef8c535"}
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 0x73e5bdc31e947145b9379d63ff7e7667b98f9064e610a129e4af92ac1575b3ff. 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/56bc2b34-5b52-4f58-9602-1adbdef8c535.json and https://artists.proofprofile.net/proofs/artist/56bc2b34-5b52-4f58-9602-1adbdef8c535.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x73e5bdc31e947145b9379d63ff7e7667b98f9064e610a129e4af92ac1575b3ff","name":"Martin Klein","registered_at":"2026-06-16T19:47:39Z","symbol":"NIM1156857","token_address":"0x3e139b68418a5f3eccdcc95f5d1dcd7b948f56ed","type":"artist","uuid":"56bc2b34-5b52-4f58-9602-1adbdef8c535"}
album: Songs For My Piano
  type: MusicAlbum
  date published: 2009-08-21
album: Songs For My Piano
  type: MusicAlbum
  date published: 2009-09-01
album: Your Heart Has Gone
  type: MusicAlbum
  date published: 2010-02-24
album: Did I Ever Let You Know
  type: MusicAlbum
  date published: 2010-02-24
album: Courage (Exclusive Single)
  type: MusicAlbum
  date published: 2011-11-11
album: Courage
  type: MusicAlbum
  date published: 2011-11-11
album: Lass uns bleiben
  type: MusicAlbum
  date published: 2011-11-18
album: Everything
  type: MusicAlbum
  date published: 2015-03-11
album: Das Leben hat's doch gut mit uns gemeint
  type: MusicAlbum
  date published: 2015-09-18
album: Das Leben hat's doch gut mit uns gemeint
  type: MusicAlbum
  date published: 2015-09-18
album: The Sun
  type: MusicAlbum
  date published: 2017-12-23
album: Lost Songs
  type: MusicAlbum
  date published: 2018-11-23
album: Lost Songs
  type: MusicAlbum
  date published: 2018-11-23
album: Let's Play Soccer
  type: MusicAlbum
  date published: 2019-06-05
album: Nachtlieder
  type: MusicAlbum
  date published: 2020-09-11
album: Nachtlieder
  type: MusicAlbum
  date published: 2020-09-11
album: Niemals
  type: MusicAlbum
  date published: 2022-04-15
album: Niemals
  type: MusicAlbum
  date published: 2022-04-15
album: Irgendwo (feat. MaxFinn) [Radio Edit]
  type: MusicAlbum
  date published: 2022-12-16
album: A Musician’s Life
  type: MusicAlbum
  date published: 2025-09-26