Research corpus PrivacyBLC-STUDY-0466

Non-Fungible Key Bound Token

ERC 6809, Non-Fungible Key Bound Token. A standard interface for Non-Fungible Key Bound Tokens (NFKBT/s), a subset of the more general Key Bound Tokens (KBT/s).

Official external source only
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Record

Authors: Mihai Onila , Nick Zeman , Narcis Cotaie
Date: 2023
Publisher: Mihai Onila , Nick Zeman , Narcis Cotaie
Version: Source cited by the 2023 study. The study is the reading. This page does not add a second essay.
Document ID: BLC-STUDY-0466
DOI: None recorded
Last reviewed: 1 October 2026
Licence: No licence recorded. Rights status under review.

No hash is published. This build does not store those PDF bytes, so a checksum would be invented. Where a legacy path exists, it points at the Internet Archive copy of the old library.

Direct answer

ERC 6809, Non-Fungible Key Bound Token. A standard interface for Non-Fungible Key Bound Tokens (NFKBT/s), a subset of the more general Key Bound Tokens (KBT/s).

Where to read

Official source — ERC 6809
Blockchain Lab study, the canonical readingOriginal commentary. Not a transcription of the paper.

Metadata and commentary only. The reading is the study page.

Full text

Full text is not published on this page. Public availability is not a licence to republish a document. Blockchain Lab has not recorded a licence that permits an HTML transcription, a training set, or a retrieval corpus of the paper. Text on this page is Blockchain Lab's own wording, or a pointer to a study that is also Blockchain Lab's wording.

What changed

Status in the source: Final. A reading of the public specification, not a copy of it and not a certification.

Relationships

Canonical readingERC 6809 study
Related paperGroth16
Related paperBulletproofs
Related paperTaproot

Cite this record

These citations point at the source document. They are not a licence to copy it.

Author–date

Onila, M., Zeman, N., & Cotaie, N. (2023). Non-Fungible Key Bound Token. Mihai Onila , Nick Zeman , Narcis Cotaie. https://eips.ethereum.org/EIPS/eip-6809

BibTeX

@techreport{erc68092023,
  title = {Non-Fungible Key Bound Token},
  author = {Mihai Onila , Nick Zeman , Narcis Cotaie},
  year = {2023},
  institution = {Mihai Onila , Nick Zeman , Narcis Cotaie},
  url = {https://eips.ethereum.org/EIPS/eip-6809},
  note = {Rights status: Official external source only. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/erc-6809}
}

RIS

TY  - RPRT
TI  - Non-Fungible Key Bound Token
AU  - Mihai Onila
AU  - Nick Zeman
AU  - Narcis Cotaie
PY  - 2023
PB  - Mihai Onila , Nick Zeman , Narcis Cotaie
UR  - https://eips.ethereum.org/EIPS/eip-6809
N1  - Rights status: Official external source only
ER  -

CSL-JSON

[
  {
    "type": "report",
    "id": "BLC-STUDY-0466",
    "title": "Non-Fungible Key Bound Token",
    "author": [
      {
        "literal": "Mihai Onila"
      },
      {
        "literal": "Nick Zeman"
      },
      {
        "literal": "Narcis Cotaie"
      }
    ],
    "issued": {
      "date-parts": [
        [
          2023
        ]
      ]
    },
    "publisher": "Mihai Onila , Nick Zeman , Narcis Cotaie",
    "URL": "https://eips.ethereum.org/EIPS/eip-6809",
    "note": "Rights status: Official external source only. Not a licence to republish the paper."
  }
]

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Rights record

Source status: Official source
Use status: Metadata and commentary only. The reading is the study page.
Rights: Official external source only
Training and retrieval: Not permitted from this site. There is no rights-cleared full text to retrieve or to train on.

Rights and licensing Corrections