Proxy Storage Slots

ERC 1967, Proxy Storage Slots. Delegating proxy contracts are widely used for both upgradeability and gas savings.

Official external source only
Design paper
Official source

Record

Authors: Santiago Palladino , Francisco Giordano , Hadrien Croubois
Date: 2019
Publisher: Santiago Palladino , Francisco Giordano , Hadrien Croubois
Version: Source cited by the 2019 study. The study is the reading. This page does not add a second essay.
Document ID: BLC-STUDY-0399
DOI: None recorded
Last reviewed: 1 October 2026
Licence: No licence recorded. Rights status under review.

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Direct answer

ERC 1967, Proxy Storage Slots. Delegating proxy contracts are widely used for both upgradeability and gas savings.

Where to read

Official source — ERC 1967
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 1967 study
Related paperEIP-4844
Related paperPlasma
Related paperArbitrum

Cite this record

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

Author–date

Palladino, S., Giordano, F., & Croubois, H. (2019). Proxy Storage Slots. Santiago Palladino , Francisco Giordano , Hadrien Croubois. https://eips.ethereum.org/EIPS/eip-1967

BibTeX

@techreport{erc19672019,
  title = {Proxy Storage Slots},
  author = {Santiago Palladino , Francisco Giordano , Hadrien Croubois},
  year = {2019},
  institution = {Santiago Palladino , Francisco Giordano , Hadrien Croubois},
  url = {https://eips.ethereum.org/EIPS/eip-1967},
  note = {Rights status: Official external source only. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/erc-1967}
}

RIS

TY  - RPRT
TI  - Proxy Storage Slots
AU  - Santiago Palladino
AU  - Francisco Giordano
AU  - Hadrien Croubois
PY  - 2019
PB  - Santiago Palladino , Francisco Giordano , Hadrien Croubois
UR  - https://eips.ethereum.org/EIPS/eip-1967
N1  - Rights status: Official external source only
ER  -

CSL-JSON

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  {
    "type": "report",
    "id": "BLC-STUDY-0399",
    "title": "Proxy Storage Slots",
    "author": [
      {
        "literal": "Santiago Palladino"
      },
      {
        "literal": "Francisco Giordano"
      },
      {
        "literal": "Hadrien Croubois"
      }
    ],
    "issued": {
      "date-parts": [
        [
          2019
        ]
      ]
    },
    "publisher": "Santiago Palladino , Francisco Giordano , Hadrien Croubois",
    "URL": "https://eips.ethereum.org/EIPS/eip-1967",
    "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