{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:HYXY6CDWT2DJVUZK63FF7WP3XM","short_pith_number":"pith:HYXY6CDW","canonical_record":{"source":{"id":"1902.02822","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-02-07T19:58:56Z","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"title_canon_sha256":"45d15e59e3687f0ed5cedc5a9fbcca89b1673a3650f321618c9ebfddffc07420","abstract_canon_sha256":"10dd3de1bf03048c8d7218385c05ecd818d3c4c6e240192faaa8afc4f4c46cce"},"schema_version":"1.0"},"canonical_sha256":"3e2f8f08769e869ad32af6ca5fd9fbbb222ed955d9ae828e158e7f9dde934d62","source":{"kind":"arxiv","id":"1902.02822","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02822","created_at":"2026-05-17T23:45:52Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02822v1","created_at":"2026-05-17T23:45:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02822","created_at":"2026-05-17T23:45:52Z"},{"alias_kind":"pith_short_12","alias_value":"HYXY6CDWT2DJ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"HYXY6CDWT2DJVUZK","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"HYXY6CDW","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:HYXY6CDWT2DJVUZK63FF7WP3XM","target":"record","payload":{"canonical_record":{"source":{"id":"1902.02822","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-02-07T19:58:56Z","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"title_canon_sha256":"45d15e59e3687f0ed5cedc5a9fbcca89b1673a3650f321618c9ebfddffc07420","abstract_canon_sha256":"10dd3de1bf03048c8d7218385c05ecd818d3c4c6e240192faaa8afc4f4c46cce"},"schema_version":"1.0"},"canonical_sha256":"3e2f8f08769e869ad32af6ca5fd9fbbb222ed955d9ae828e158e7f9dde934d62","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:52.118686Z","signature_b64":"LhPahFho53ysOXnILR4VVBpaNT/M/MlFq1eRl+FRMC+mbjNNPKXxzfVm2Pqzo9/7SE3chC9Q4pKNkscc+BlACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e2f8f08769e869ad32af6ca5fd9fbbb222ed955d9ae828e158e7f9dde934d62","last_reissued_at":"2026-05-17T23:45:52.118101Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:52.118101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.02822","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:45:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WwJA5B6aEtEHr6rnt7a52oNrtMwAeC2l6NDgbLlp7ZPQiS1OqAKiyt82nUe57ysTQ59/7Ewb7CObxNqMKXMGCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:15:15.882973Z"},"content_sha256":"35546b59db4420e09dd31feb9a2aadf5561f538296adcba64d541ed3d3949bcf","schema_version":"1.0","event_id":"sha256:35546b59db4420e09dd31feb9a2aadf5561f538296adcba64d541ed3d3949bcf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:HYXY6CDWT2DJVUZK63FF7WP3XM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CORSIKA 8 - Towards a modern framework for the simulation of extensive air showers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","physics.comp-ph"],"primary_cat":"astro-ph.IM","authors_text":"Maximilian Reininghaus, Ralf Ulrich (CORSIKA 8 Project)","submitted_at":"2019-02-07T19:58:56Z","abstract_excerpt":"Current and future challenges in astroparticle physics require novel simulation tools to achieve higher precision and more flexibility. For three decades the FORTRAN version of CORSIKA served the community in an excellent way. However, the effort to maintain and further develop this complex package is getting increasingly difficult. To overcome existing limitations, and designed as a very open platform for all particle cascade simulations in astroparticle physics, we are developing CORSIKA 8 based on modern C++ and Python concepts. Here, we give a brief status report of the project."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02822","kind":"arxiv","version":1},"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":"2026-05-17T23:45:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Buut7RxJtM2emrbJx9H4MTeeeA+82+bqFofWB8sFTiCeoVVILat+DcuGzsHiRJs/Lz5zoo16e/HJTqBfZUWCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T23:15:15.883528Z"},"content_sha256":"6f8bb09cbfaff1106b0304b0c3f85cc3d00762b8f751d03f02b028ae51174b1b","schema_version":"1.0","event_id":"sha256:6f8bb09cbfaff1106b0304b0c3f85cc3d00762b8f751d03f02b028ae51174b1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HYXY6CDWT2DJVUZK63FF7WP3XM/bundle.json","state_url":"https://pith.science/pith/HYXY6CDWT2DJVUZK63FF7WP3XM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HYXY6CDWT2DJVUZK63FF7WP3XM/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":"2026-05-26T23:15:15Z","links":{"resolver":"https://pith.science/pith/HYXY6CDWT2DJVUZK63FF7WP3XM","bundle":"https://pith.science/pith/HYXY6CDWT2DJVUZK63FF7WP3XM/bundle.json","state":"https://pith.science/pith/HYXY6CDWT2DJVUZK63FF7WP3XM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HYXY6CDWT2DJVUZK63FF7WP3XM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HYXY6CDWT2DJVUZK63FF7WP3XM","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":"10dd3de1bf03048c8d7218385c05ecd818d3c4c6e240192faaa8afc4f4c46cce","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-02-07T19:58:56Z","title_canon_sha256":"45d15e59e3687f0ed5cedc5a9fbcca89b1673a3650f321618c9ebfddffc07420"},"schema_version":"1.0","source":{"id":"1902.02822","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02822","created_at":"2026-05-17T23:45:52Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02822v1","created_at":"2026-05-17T23:45:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02822","created_at":"2026-05-17T23:45:52Z"},{"alias_kind":"pith_short_12","alias_value":"HYXY6CDWT2DJ","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"HYXY6CDWT2DJVUZK","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"HYXY6CDW","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:6f8bb09cbfaff1106b0304b0c3f85cc3d00762b8f751d03f02b028ae51174b1b","target":"graph","created_at":"2026-05-17T23:45:52Z","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":"Current and future challenges in astroparticle physics require novel simulation tools to achieve higher precision and more flexibility. For three decades the FORTRAN version of CORSIKA served the community in an excellent way. However, the effort to maintain and further develop this complex package is getting increasingly difficult. To overcome existing limitations, and designed as a very open platform for all particle cascade simulations in astroparticle physics, we are developing CORSIKA 8 based on modern C++ and Python concepts. Here, we give a brief status report of the project.","authors_text":"Maximilian Reininghaus, Ralf Ulrich (CORSIKA 8 Project)","cross_cats":["astro-ph.HE","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-02-07T19:58:56Z","title":"CORSIKA 8 - Towards a modern framework for the simulation of extensive air showers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02822","kind":"arxiv","version":1},"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":"sha256:35546b59db4420e09dd31feb9a2aadf5561f538296adcba64d541ed3d3949bcf","target":"record","created_at":"2026-05-17T23:45:52Z","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":"10dd3de1bf03048c8d7218385c05ecd818d3c4c6e240192faaa8afc4f4c46cce","cross_cats_sorted":["astro-ph.HE","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-02-07T19:58:56Z","title_canon_sha256":"45d15e59e3687f0ed5cedc5a9fbcca89b1673a3650f321618c9ebfddffc07420"},"schema_version":"1.0","source":{"id":"1902.02822","kind":"arxiv","version":1}},"canonical_sha256":"3e2f8f08769e869ad32af6ca5fd9fbbb222ed955d9ae828e158e7f9dde934d62","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e2f8f08769e869ad32af6ca5fd9fbbb222ed955d9ae828e158e7f9dde934d62","first_computed_at":"2026-05-17T23:45:52.118101Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:52.118101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LhPahFho53ysOXnILR4VVBpaNT/M/MlFq1eRl+FRMC+mbjNNPKXxzfVm2Pqzo9/7SE3chC9Q4pKNkscc+BlACA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:52.118686Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.02822","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35546b59db4420e09dd31feb9a2aadf5561f538296adcba64d541ed3d3949bcf","sha256:6f8bb09cbfaff1106b0304b0c3f85cc3d00762b8f751d03f02b028ae51174b1b"],"state_sha256":"ea54984b42ff4f1dfffd6cc7bde5f3ea930e60205eebf9a3dd76269186217c08"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N+37mmx/I1xfoAKM2b0d0kxs3h7h/aNZpPcFn37GCKhep/ni0iUsGCqJSAnIDGl0K1aB/hBw4g/hGovx/G9cDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T23:15:15.886674Z","bundle_sha256":"5357f9675253c8d84668b97348c646eb0b93e38f161fd32857346f6e7df90090"}}