{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:FOVCDJGSIE6SHCMJQERYYANREQ","short_pith_number":"pith:FOVCDJGS","canonical_record":{"source":{"id":"1610.07198","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2016-10-23T16:29:30Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"b2d7f3bdd86154e8b2e12282c7275d61342b24f2105a9b3cbe71dd79dfb4feec","abstract_canon_sha256":"58a6c806397a381feb313638bcf35753f188e7db1575e625414075cd27d6e2af"},"schema_version":"1.0"},"canonical_sha256":"2baa21a4d2413d23898981238c01b1243efa33e9ee332fb9460cc687f9119afa","source":{"kind":"arxiv","id":"1610.07198","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07198","created_at":"2026-05-18T00:40:40Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07198v2","created_at":"2026-05-18T00:40:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07198","created_at":"2026-05-18T00:40:40Z"},{"alias_kind":"pith_short_12","alias_value":"FOVCDJGSIE6S","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FOVCDJGSIE6SHCMJ","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FOVCDJGS","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:FOVCDJGSIE6SHCMJQERYYANREQ","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07198","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2016-10-23T16:29:30Z","cross_cats_sorted":["cs.PL"],"title_canon_sha256":"b2d7f3bdd86154e8b2e12282c7275d61342b24f2105a9b3cbe71dd79dfb4feec","abstract_canon_sha256":"58a6c806397a381feb313638bcf35753f188e7db1575e625414075cd27d6e2af"},"schema_version":"1.0"},"canonical_sha256":"2baa21a4d2413d23898981238c01b1243efa33e9ee332fb9460cc687f9119afa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:40.960030Z","signature_b64":"1TNZO8wO9bef5C9sWylAjzrYMtbQJApSa7CTU3gJnNtUJwdgVcwbbbkAPWweDAA56k4pqYFIXuqlCckWaolfAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2baa21a4d2413d23898981238c01b1243efa33e9ee332fb9460cc687f9119afa","last_reissued_at":"2026-05-18T00:40:40.959305Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:40.959305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07198","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:40:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ZrtJREUsJQASuS4pyhkt5hwl7rhQ/C2Ivp3jdH5/Sxp2ARe93+cjF7++jMQxTNBgnntl28/aW/xejwe4BAGCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T22:13:50.084458Z"},"content_sha256":"88bf80c2e425bdaf000cdc52d4d621c66c9e1364409dfe166c3e8884cba43cc5","schema_version":"1.0","event_id":"sha256:88bf80c2e425bdaf000cdc52d4d621c66c9e1364409dfe166c3e8884cba43cc5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:FOVCDJGSIE6SHCMJQERYYANREQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Language-theoretic View on Network Protocols","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.PL"],"primary_cat":"cs.FL","authors_text":"Boris K\\\"opf, Pedro Valero, Pierre Ganty","submitted_at":"2016-10-23T16:29:30Z","abstract_excerpt":"Input validation is the first line of defense against malformed or malicious inputs. It is therefore critical that the validator (which is often part of the parser) is free of bugs.\n  To build dependable input validators, we propose using parser generators for context-free languages. In the context of network protocols, various works have pointed at context-free languages as falling short to specify precisely or concisely common idioms found in protocols. We review those assessments and perform a rigorous, language-theoretic analysis of several common protocol idioms. We then demonstrate the p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07198","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:40:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YI8zmNE2ApGgqc3hASNCC+zUtIGaEO6cGYVqn3a12U92lAguLlLFItvcn3V6C8ThQeC6VD6/NMNCvc85+UZ+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T22:13:50.085142Z"},"content_sha256":"3c8112ec43846d23d6ace607fd45f947377a366b8aad3c31d0cd00cb4463d2ee","schema_version":"1.0","event_id":"sha256:3c8112ec43846d23d6ace607fd45f947377a366b8aad3c31d0cd00cb4463d2ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FOVCDJGSIE6SHCMJQERYYANREQ/bundle.json","state_url":"https://pith.science/pith/FOVCDJGSIE6SHCMJQERYYANREQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FOVCDJGSIE6SHCMJQERYYANREQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-09T22:13:50Z","links":{"resolver":"https://pith.science/pith/FOVCDJGSIE6SHCMJQERYYANREQ","bundle":"https://pith.science/pith/FOVCDJGSIE6SHCMJQERYYANREQ/bundle.json","state":"https://pith.science/pith/FOVCDJGSIE6SHCMJQERYYANREQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FOVCDJGSIE6SHCMJQERYYANREQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:FOVCDJGSIE6SHCMJQERYYANREQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"58a6c806397a381feb313638bcf35753f188e7db1575e625414075cd27d6e2af","cross_cats_sorted":["cs.PL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2016-10-23T16:29:30Z","title_canon_sha256":"b2d7f3bdd86154e8b2e12282c7275d61342b24f2105a9b3cbe71dd79dfb4feec"},"schema_version":"1.0","source":{"id":"1610.07198","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07198","created_at":"2026-05-18T00:40:40Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07198v2","created_at":"2026-05-18T00:40:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07198","created_at":"2026-05-18T00:40:40Z"},{"alias_kind":"pith_short_12","alias_value":"FOVCDJGSIE6S","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FOVCDJGSIE6SHCMJ","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FOVCDJGS","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:3c8112ec43846d23d6ace607fd45f947377a366b8aad3c31d0cd00cb4463d2ee","target":"graph","created_at":"2026-05-18T00:40:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Input validation is the first line of defense against malformed or malicious inputs. It is therefore critical that the validator (which is often part of the parser) is free of bugs.\n  To build dependable input validators, we propose using parser generators for context-free languages. In the context of network protocols, various works have pointed at context-free languages as falling short to specify precisely or concisely common idioms found in protocols. We review those assessments and perform a rigorous, language-theoretic analysis of several common protocol idioms. We then demonstrate the p","authors_text":"Boris K\\\"opf, Pedro Valero, Pierre Ganty","cross_cats":["cs.PL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2016-10-23T16:29:30Z","title":"A Language-theoretic View on Network Protocols"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07198","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:88bf80c2e425bdaf000cdc52d4d621c66c9e1364409dfe166c3e8884cba43cc5","target":"record","created_at":"2026-05-18T00:40:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"58a6c806397a381feb313638bcf35753f188e7db1575e625414075cd27d6e2af","cross_cats_sorted":["cs.PL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.FL","submitted_at":"2016-10-23T16:29:30Z","title_canon_sha256":"b2d7f3bdd86154e8b2e12282c7275d61342b24f2105a9b3cbe71dd79dfb4feec"},"schema_version":"1.0","source":{"id":"1610.07198","kind":"arxiv","version":2}},"canonical_sha256":"2baa21a4d2413d23898981238c01b1243efa33e9ee332fb9460cc687f9119afa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2baa21a4d2413d23898981238c01b1243efa33e9ee332fb9460cc687f9119afa","first_computed_at":"2026-05-18T00:40:40.959305Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:40.959305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1TNZO8wO9bef5C9sWylAjzrYMtbQJApSa7CTU3gJnNtUJwdgVcwbbbkAPWweDAA56k4pqYFIXuqlCckWaolfAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:40.960030Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07198","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88bf80c2e425bdaf000cdc52d4d621c66c9e1364409dfe166c3e8884cba43cc5","sha256:3c8112ec43846d23d6ace607fd45f947377a366b8aad3c31d0cd00cb4463d2ee"],"state_sha256":"58e616e008cc6159e9f5bf4316d742aebddad2367340cc7a325617eaf0aa7099"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zhxr2fIvHS1OH5X1EVLHRvmU9iN4+oXcYDCucUV0jl7obGnWYrFFR6Ohfq275BIynBtng+pal6Q2NBNZZBdTAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T22:13:50.089087Z","bundle_sha256":"193c9e943448c8db8f888896b3ad6d0759e86ef7bcbeeacb6eabc991dce1de06"}}