Jeffrey Kahane
type: MusicGroup
genre: classical
description: Jeffrey Alan Kahane (born September 12, 1956) is an American classical concert pianist and conductor. He was music director of the Los Angeles Chamber Orchestra for 20 years, the longest of any music
popularity: 36
followers: 391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf903fef89b28bcc0b7118d1ef94102d3630deca20b4e32d4ee9156d5c0e026f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5aa105c-6300-4ef9-86eb-af444d417c77.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5aa105c-6300-4ef9-86eb-af444d417c77.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f5aa105c-6300-4ef9-86eb-af444d417c77
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf903fef89b28bcc0b7118d1ef94102d3630deca20b4e32d4ee9156d5c0e026f2","name":"Jeffrey Kahane","registered_at":"2026-06-12T13:49:11Z","symbol":"NIM0316480","token_address":"0x2176e19bba37f9c1317bea3075d862d2e305d9bb","type":"artist","uuid":"f5aa105c-6300-4ef9-86eb-af444d417c77"}
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 0xf903fef89b28bcc0b7118d1ef94102d3630deca20b4e32d4ee9156d5c0e026f2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5aa105c-6300-4ef9-86eb-af444d417c77.json and https://artists.proofprofile.net/proofs/artist/f5aa105c-6300-4ef9-86eb-af444d417c77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xf903fef89b28bcc0b7118d1ef94102d3630deca20b4e32d4ee9156d5c0e026f2","name":"Jeffrey Kahane","registered_at":"2026-06-12T13:49:11Z","symbol":"NIM0316480","token_address":"0x2176e19bba37f9c1317bea3075d862d2e305d9bb","type":"artist","uuid":"f5aa105c-6300-4ef9-86eb-af444d417c77"}
album: Yarlung Records: 10th Anniversary
  type: MusicAlbum
  date published: 2015-05-26