Research corpus PrivacyBLC-STUDY-0446

Token State Fingerprint

ERC 5646, Token State Fingerprint. This specification defines the minimum interface required to unambiguously identify the state of a mutable token without knowledge of implementation details.

Official external source only
Design paper
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Record

Authors: Naim Ashhab
Date: 2022
Publisher: Naim Ashhab
Version: Source cited by the 2022 study. The study is the reading. This page does not add a second essay.
Document ID: BLC-STUDY-0446
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 5646, Token State Fingerprint. This specification defines the minimum interface required to unambiguously identify the state of a mutable token without knowledge of implementation details.

Where to read

Official source — ERC 5646
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 5646 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

Ashhab, N. (2022). Token State Fingerprint. Naim Ashhab. https://eips.ethereum.org/EIPS/eip-5646

BibTeX

@techreport{erc56462022,
  title = {Token State Fingerprint},
  author = {Naim Ashhab},
  year = {2022},
  institution = {Naim Ashhab},
  url = {https://eips.ethereum.org/EIPS/eip-5646},
  note = {Rights status: Official external source only. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/erc-5646}
}

RIS

TY  - RPRT
TI  - Token State Fingerprint
AU  - Naim Ashhab
PY  - 2022
PB  - Naim Ashhab
UR  - https://eips.ethereum.org/EIPS/eip-5646
N1  - Rights status: Official external source only
ER  -

CSL-JSON

[
  {
    "type": "report",
    "id": "BLC-STUDY-0446",
    "title": "Token State Fingerprint",
    "author": [
      {
        "literal": "Naim Ashhab"
      }
    ],
    "issued": {
      "date-parts": [
        [
          2022
        ]
      ]
    },
    "publisher": "Naim Ashhab",
    "URL": "https://eips.ethereum.org/EIPS/eip-5646",
    "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