Joachim Schäfer
type: MusicGroup
popularity: 5
followers: 230
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc24bf11bc8dba2723de83681f2ddeec1a5f23cb018b5b8b393bd92482ecc41b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a206b970-810c-41a4-b5c0-7418e6bcdf07.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a206b970-810c-41a4-b5c0-7418e6bcdf07.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a206b970-810c-41a4-b5c0-7418e6bcdf07
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc24bf11bc8dba2723de83681f2ddeec1a5f23cb018b5b8b393bd92482ecc41b0","name":"Joachim Schäfer","registered_at":"2026-06-20T06:11:02Z","symbol":"NIM1535469","token_address":"0xd71b79dbfdba69d3d946339dcc7d183d09945491","type":"artist","uuid":"a206b970-810c-41a4-b5c0-7418e6bcdf07"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24bf11bc8dba2723de83681f2ddeec1a5f23cb018b5b8b393bd92482ecc41b0. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a206b970-810c-41a4-b5c0-7418e6bcdf07.json and https://artists.proofprofile.net/proofs/artist/a206b970-810c-41a4-b5c0-7418e6bcdf07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xc24bf11bc8dba2723de83681f2ddeec1a5f23cb018b5b8b393bd92482ecc41b0","name":"Joachim Schäfer","registered_at":"2026-06-20T06:11:02Z","symbol":"NIM1535469","token_address":"0xd71b79dbfdba69d3d946339dcc7d183d09945491","type":"artist","uuid":"a206b970-810c-41a4-b5c0-7418e6bcdf07"}
album: Piccolo Trumpet Recital: Schafer, Joachim - Vivaldi, A. / Bach, J.C. / Handel, G.F. / Andre, M. / Campion, F. / Loeillet, J.-B.
  type: MusicAlbum
  date published: 1999-01-01
album: Piccolo Trumpet Recital: Schafer, Joachim - Vivaldi, A. / Bach, J.C. / Handel, G.F. / Andre, M. / Campion, F. / Loeillet, J.-B.
  type: MusicAlbum
  date published: 1999-01-01
album: Trumpet Recital: Schafer, Joachim - Albinoni, T.G. / Handel, G.F. / Telemann, G.P. / Baldassari, P. / Loeillet, J.-B. / Valentino, R.
  type: MusicAlbum
  date published: 2001-01-01
album: Trumpet Music - Albinoni, T.G. / Handel, G.F. / Franceschini, P. / Hertel, J.W. / Telemann, G.P. / Manfredini, F.O.
  type: MusicAlbum
  date published: 2001-01-01
album: Trumpet Music - Albinoni, T.G. / Handel, G.F. / Franceschini, P. / Hertel, J.W. / Telemann, G.P. / Manfredini, F.O.
  type: MusicAlbum
  date published: 2001-01-01
album: Trumpet Recital: Schafer, Joachim - Albinoni, T.G. / Handel, G.F. / Telemann, G.P. / Baldassari, P. / Loeillet, J.-B. / Valentino, R.
  type: MusicAlbum
  date published: 2001-01-01
album: Trumpet Music - Handel, G.F. / Bach, J.S. / Purcell, H. / Stradella, A. / Vivaldi, A. / Biber, H.I.F. / Torelli, G. / Schmelzer, J.H.
  type: MusicAlbum
  date published: 2003-01-01
album: Trumpet Festival
  type: MusicAlbum
  date published: 2005-01-01
album: Suites of Aires, Messiah
  type: MusicAlbum
  date published: 2012-11-06
album: Italienisches um Bach (Bach and his Italian Colleagues)
  type: MusicAlbum
  date published: 2013-06-25
album: Italienisches um Bach (Bach and his Italian Colleagues)
  type: MusicAlbum
  date published: 2013-06-25
album: Baroque Trumpet Concertos
  type: MusicAlbum
  date published: 2020-08-21
album: Table for Two
  type: MusicAlbum
  date published: 2020-10-12
album: Musik ist der beste Trost - Trompete & Orgel
  type: MusicAlbum
  date published: 2023-03-17