{"id":13432849,"url":"https://github.com/zkcrypto/bellman","last_synced_at":"2025-12-12T12:12:15.443Z","repository":{"id":3141819,"uuid":"48537264","full_name":"zkcrypto/bellman","owner":"zkcrypto","description":"zk-SNARK library.","archived":false,"fork":false,"pushed_at":"2024-03-04T18:24:30.000Z","size":3402,"stargazers_count":932,"open_issues_count":32,"forks_count":517,"subscribers_count":40,"default_branch":"main","last_synced_at":"2024-04-14T12:11:17.048Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"Rust","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/zkcrypto.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":null,"funding":null,"license":"LICENSE-APACHE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2015-12-24T10:00:37.000Z","updated_at":"2024-06-05T13:24:05.271Z","dependencies_parsed_at":"2023-07-14T02:31:02.199Z","dependency_job_id":"9f81d675-5ac5-4847-aa7d-cf020df0087c","html_url":"https://github.com/zkcrypto/bellman","commit_stats":{"total_commits":312,"total_committers":20,"mean_commits":15.6,"dds":0.6442307692307692,"last_synced_commit":"e137775023a647716793a362ace008e058679b2a"},"previous_names":["ebfull/bellman"],"tags_count":5,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zkcrypto%2Fbellman","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zkcrypto%2Fbellman/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zkcrypto%2Fbellman/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zkcrypto%2Fbellman/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/zkcrypto","download_url":"https://codeload.github.com/zkcrypto/bellman/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":221675278,"owners_count":16861860,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-07-31T02:01:17.517Z","updated_at":"2025-12-12T12:12:10.098Z","avatar_url":"https://github.com/zkcrypto.png","language":"Rust","funding_links":[],"categories":["Rust","6. Privacy-Preserving Technologies","Cryptography"],"sub_categories":["6.1 Zero-Knowledge Proofs","Zero Knowledge Proofs"],"readme":"# bellman [![Crates.io](https://img.shields.io/crates/v/bellman.svg)](https://crates.io/crates/bellman) #\n\n`bellman` is a crate for building zk-SNARK circuits. It provides circuit traits\nand primitive structures, as well as basic gadget implementations such as\nbooleans and number abstractions.\n\n`bellman` uses the `ff` and `group` crates to build circuits generically over a\nscalar field type, which is used as the \"word\" of a circuit. Arithmetic\noperations modulo the scalar field's prime are efficient, while other operations\n(such as boolean logic) are implemented using these words.\n\n## Roadmap\n\nCurrently `bellman` bundles an implementation of the Groth16 proving system.\nThis will be moved into a separate crate in the future, and `bellman` will\ncontain any utilities that make implementing proving systems easier.\n\n## License\n\nLicensed under either of\n\n * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or\n   http://www.apache.org/licenses/LICENSE-2.0)\n * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)\n\nat your option.\n\n### Contribution\n\nUnless you explicitly state otherwise, any contribution intentionally\nsubmitted for inclusion in the work by you, as defined in the Apache-2.0\nlicense, shall be dual licensed as above, without any additional terms or\nconditions.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fzkcrypto%2Fbellman","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fzkcrypto%2Fbellman","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fzkcrypto%2Fbellman/lists"}