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Research corpusScalingBLC-STUDY-0292

Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128

EIP 196, Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128. Precompiled contracts for elliptic curve operations are required in order to perform zkSNARK verification within the block gas limit.

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Record

Authors
Christian Reitwiessner
Date
2017
Publisher
Christian Reitwiessner
Version
Source cited by the 2017 study. The study is the reading. This page does not add a second essay.
Document ID
BLC-STUDY-0292
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

EIP 196, Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128. Precompiled contracts for elliptic curve operations are required in order to perform zkSNARK verification within the block gas limit.

Where to read

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.

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Cite this record

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Author–date

Reitwiessner, C. (2017). Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128. Christian Reitwiessner. https://eips.ethereum.org/EIPS/eip-196

BibTeX

@techreport{eip1962017,
  title = {Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128},
  author = {Christian Reitwiessner},
  year = {2017},
  institution = {Christian Reitwiessner},
  url = {https://eips.ethereum.org/EIPS/eip-196},
  note = {Rights status: Official external source only. Blockchain Lab record: https://blockchainlab.com/research/corpus/papers/eip-196}
}

RIS

TY  - RPRT
TI  - Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128
AU  - Christian Reitwiessner
PY  - 2017
PB  - Christian Reitwiessner
UR  - https://eips.ethereum.org/EIPS/eip-196
N1  - Rights status: Official external source only
ER  -

CSL-JSON

[
  {
    "type": "report",
    "id": "BLC-STUDY-0292",
    "title": "Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128",
    "author": [
      {
        "literal": "Christian Reitwiessner"
      }
    ],
    "issued": {
      "date-parts": [
        [
          2017
        ]
      ]
    },
    "publisher": "Christian Reitwiessner",
    "URL": "https://eips.ethereum.org/EIPS/eip-196",
    "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.

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