Makiko Takeda-Herms
type: MusicGroup
popularity: 8
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x837276a4c7cfb86f9b91c2a3d3940eab52d30c504f179f4bfebc4c9a32eccefc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43e3c2a3-9a88-4358-a90b-8c66b027ec1e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43e3c2a3-9a88-4358-a90b-8c66b027ec1e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/43e3c2a3-9a88-4358-a90b-8c66b027ec1e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x837276a4c7cfb86f9b91c2a3d3940eab52d30c504f179f4bfebc4c9a32eccefc","name":"Makiko Takeda-Herms","registered_at":"2026-06-16T13:32:52Z","symbol":"NIM1067423","token_address":"0xb941f42ec3d28b52d9dc96e73f695afbfbd35d0d","type":"artist","uuid":"43e3c2a3-9a88-4358-a90b-8c66b027ec1e"}
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 0x837276a4c7cfb86f9b91c2a3d3940eab52d30c504f179f4bfebc4c9a32eccefc. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43e3c2a3-9a88-4358-a90b-8c66b027ec1e.json and https://artists.proofprofile.net/proofs/artist/43e3c2a3-9a88-4358-a90b-8c66b027ec1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0x837276a4c7cfb86f9b91c2a3d3940eab52d30c504f179f4bfebc4c9a32eccefc","name":"Makiko Takeda-Herms","registered_at":"2026-06-16T13:32:52Z","symbol":"NIM1067423","token_address":"0xb941f42ec3d28b52d9dc96e73f695afbfbd35d0d","type":"artist","uuid":"43e3c2a3-9a88-4358-a90b-8c66b027ec1e"}
album: Makiko Takeda-Herms spielt Beethoven
  type: MusicAlbum
  date published: 2002-04-01
album: Johannes Brahms - Klavier
  type: MusicAlbum
  date published: 2004-11-01