Tobias Klein
type: MusicGroup
genre: free jazz
description: Tobias Klein (born 23 March 1982), also known as Tobi Klein, is a German former professional tennis player. Klein, a native of Baden-Württemberg, was a collegiate player for the University of Alabama
popularity: 4
followers: 171
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3ad046dd7d8c33d59adbd87ea8d21f4671d153f17ec8f2c22aa5fe2a7b2c4c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3ad046dd7d8c33d59adbd87ea8d21f4671d153f17ec8f2c22aa5fe2a7b2c4c4","name":"Tobias Klein","registered_at":"2026-06-17T15:17:39Z","symbol":"NIM1435873","token_address":"0x41a44dd6fe9b8cef9abc31e6b64ac39989b8cb90","type":"artist","uuid":"8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd"}
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 0xf3ad046dd7d8c33d59adbd87ea8d21f4671d153f17ec8f2c22aa5fe2a7b2c4c4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd.json and https://artists.proofprofile.net/proofs/artist/8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xf3ad046dd7d8c33d59adbd87ea8d21f4671d153f17ec8f2c22aa5fe2a7b2c4c4","name":"Tobias Klein","registered_at":"2026-06-17T15:17:39Z","symbol":"NIM1435873","token_address":"0x41a44dd6fe9b8cef9abc31e6b64ac39989b8cb90","type":"artist","uuid":"8e6c0a98-16d3-4fea-8428-b3dd4eaf83dd"}
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  type: MusicAlbum
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