{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:JHXRHEEHMTWKRVVAII56OJQT6A","short_pith_number":"pith:JHXRHEEH","canonical_record":{"source":{"id":"1908.11811","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-29T14:15:13Z","cross_cats_sorted":["cs.DC","cs.MA"],"title_canon_sha256":"1fa7d1b4f82315aecd1e3d1c961e7ceedb06ad141376e9e51fc23d69b7cd8101","abstract_canon_sha256":"48732808ed4e3142853fdd39d563c62a7682bc31b6f148ce513cbcd695256693"},"schema_version":"1.0"},"canonical_sha256":"49ef13908764eca8d6a0423be72613f018ec39ce52412d8c28e4853ae4ee1054","source":{"kind":"arxiv","id":"1908.11811","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.11811","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"arxiv_version","alias_value":"1908.11811v2","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.11811","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"pith_short_12","alias_value":"JHXRHEEHMTWK","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"pith_short_16","alias_value":"JHXRHEEHMTWKRVVA","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"pith_short_8","alias_value":"JHXRHEEH","created_at":"2026-07-05T00:17:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:JHXRHEEHMTWKRVVAII56OJQT6A","target":"record","payload":{"canonical_record":{"source":{"id":"1908.11811","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-29T14:15:13Z","cross_cats_sorted":["cs.DC","cs.MA"],"title_canon_sha256":"1fa7d1b4f82315aecd1e3d1c961e7ceedb06ad141376e9e51fc23d69b7cd8101","abstract_canon_sha256":"48732808ed4e3142853fdd39d563c62a7682bc31b6f148ce513cbcd695256693"},"schema_version":"1.0"},"canonical_sha256":"49ef13908764eca8d6a0423be72613f018ec39ce52412d8c28e4853ae4ee1054","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:17:28.850928Z","signature_b64":"t/pA/75Zv2MgIZkKejOOMSeFflhi1RA0lgkcwAMzg8sfcRxDhdLn3VDi3RrHRHl2bgiPEerQP0MXikYnQOt1Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49ef13908764eca8d6a0423be72613f018ec39ce52412d8c28e4853ae4ee1054","last_reissued_at":"2026-07-05T00:17:28.850326Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:17:28.850326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.11811","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":"2026-07-05T00:17:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CELlegHQngYaRT5TTFc7FXcfd6FteXSsvh10Gk3uNa2N/hI2yBpY7yMe8ae7VwEauJHVt81gfoFOFlyWy1ASAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T08:27:13.545001Z"},"content_sha256":"168385e32c77678d5870a914e902730359e3ba891bae989025425a651cf8bc6d","schema_version":"1.0","event_id":"sha256:168385e32c77678d5870a914e902730359e3ba891bae989025425a651cf8bc6d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:JHXRHEEHMTWKRVVAII56OJQT6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Agent-based Simulation of Blockchains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DC","cs.MA"],"primary_cat":"cs.CR","authors_text":"Edoardo Rosa, Gabriele D'Angelo, Stefano Ferretti","submitted_at":"2019-08-29T14:15:13Z","abstract_excerpt":"In this paper, we describe LUNES-Blockchain, an agent-based simulator of blockchains that is able to exploit Parallel and Distributed Simulation (PADS) techniques to offer a high level of scalability. To assess the preliminary implementation of our simulator, we provide a simplified modelling of the Bitcoin protocol and we study the effect of a security attack on the consensus protocol in which a set of malicious nodes implements a filtering denial of service (i.e. Sybil Attack). The results confirm the viability of the agent-based modelling of blockchains implemented by means of PADS."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.11811","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.11811/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:17:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0appvaUuFRLHhf0B6pLR1VFZQSvI3ZeTB18gchYnyqF0yjXkg+76xq6hLUX/QMKqLugyym0cxzb+sBcSyElqCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T08:27:13.545497Z"},"content_sha256":"c11e1a92f7a22ced2c79ffc11bdc3d531f0d46d70e837b97b5f84c333792dccd","schema_version":"1.0","event_id":"sha256:c11e1a92f7a22ced2c79ffc11bdc3d531f0d46d70e837b97b5f84c333792dccd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JHXRHEEHMTWKRVVAII56OJQT6A/bundle.json","state_url":"https://pith.science/pith/JHXRHEEHMTWKRVVAII56OJQT6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JHXRHEEHMTWKRVVAII56OJQT6A/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":"2026-08-17T08:27:13Z","links":{"resolver":"https://pith.science/pith/JHXRHEEHMTWKRVVAII56OJQT6A","bundle":"https://pith.science/pith/JHXRHEEHMTWKRVVAII56OJQT6A/bundle.json","state":"https://pith.science/pith/JHXRHEEHMTWKRVVAII56OJQT6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JHXRHEEHMTWKRVVAII56OJQT6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JHXRHEEHMTWKRVVAII56OJQT6A","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":"48732808ed4e3142853fdd39d563c62a7682bc31b6f148ce513cbcd695256693","cross_cats_sorted":["cs.DC","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-29T14:15:13Z","title_canon_sha256":"1fa7d1b4f82315aecd1e3d1c961e7ceedb06ad141376e9e51fc23d69b7cd8101"},"schema_version":"1.0","source":{"id":"1908.11811","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.11811","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"arxiv_version","alias_value":"1908.11811v2","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.11811","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"pith_short_12","alias_value":"JHXRHEEHMTWK","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"pith_short_16","alias_value":"JHXRHEEHMTWKRVVA","created_at":"2026-07-05T00:17:28Z"},{"alias_kind":"pith_short_8","alias_value":"JHXRHEEH","created_at":"2026-07-05T00:17:28Z"}],"graph_snapshots":[{"event_id":"sha256:c11e1a92f7a22ced2c79ffc11bdc3d531f0d46d70e837b97b5f84c333792dccd","target":"graph","created_at":"2026-07-05T00:17:28Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.11811/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we describe LUNES-Blockchain, an agent-based simulator of blockchains that is able to exploit Parallel and Distributed Simulation (PADS) techniques to offer a high level of scalability. To assess the preliminary implementation of our simulator, we provide a simplified modelling of the Bitcoin protocol and we study the effect of a security attack on the consensus protocol in which a set of malicious nodes implements a filtering denial of service (i.e. Sybil Attack). The results confirm the viability of the agent-based modelling of blockchains implemented by means of PADS.","authors_text":"Edoardo Rosa, Gabriele D'Angelo, Stefano Ferretti","cross_cats":["cs.DC","cs.MA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-29T14:15:13Z","title":"Agent-based Simulation of Blockchains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.11811","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":"sha256:168385e32c77678d5870a914e902730359e3ba891bae989025425a651cf8bc6d","target":"record","created_at":"2026-07-05T00:17:28Z","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":"48732808ed4e3142853fdd39d563c62a7682bc31b6f148ce513cbcd695256693","cross_cats_sorted":["cs.DC","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-29T14:15:13Z","title_canon_sha256":"1fa7d1b4f82315aecd1e3d1c961e7ceedb06ad141376e9e51fc23d69b7cd8101"},"schema_version":"1.0","source":{"id":"1908.11811","kind":"arxiv","version":2}},"canonical_sha256":"49ef13908764eca8d6a0423be72613f018ec39ce52412d8c28e4853ae4ee1054","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49ef13908764eca8d6a0423be72613f018ec39ce52412d8c28e4853ae4ee1054","first_computed_at":"2026-07-05T00:17:28.850326Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:17:28.850326Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t/pA/75Zv2MgIZkKejOOMSeFflhi1RA0lgkcwAMzg8sfcRxDhdLn3VDi3RrHRHl2bgiPEerQP0MXikYnQOt1Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:17:28.850928Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.11811","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:168385e32c77678d5870a914e902730359e3ba891bae989025425a651cf8bc6d","sha256:c11e1a92f7a22ced2c79ffc11bdc3d531f0d46d70e837b97b5f84c333792dccd"],"state_sha256":"1d6e1a6d7f2b18b6dfb8d5ea8f95ba29bce8552481b9250586a5047be960cb70"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vOG4ZP7vqsl6Bvltm3KfyFbEPD6uDXTjmvhMqrQ1VHnLnS8yjkreg1hIagcX+sDsKuOyiG73d3q6njBiI4/xCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T08:27:13.550413Z","bundle_sha256":"3e4d064ad8bc601d4cea1599658f7345d7508d79cedba1443d958cb72bab7ddd"}}