{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:XM6RSLEW45KXW3RLIFY2OMU2KH","short_pith_number":"pith:XM6RSLEW","canonical_record":{"source":{"id":"astro-ph/0003235","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-03-16T12:45:26Z","cross_cats_sorted":[],"title_canon_sha256":"6525f738d27f4f9bec6dd636868697dc3e68aa7fcd540a53bc986c8c24707688","abstract_canon_sha256":"52b480fa374b50898d2b051b78dafa0dd0f0b1aa6cc287ac48307ba9a719b79b"},"schema_version":"1.0"},"canonical_sha256":"bb3d192c96e7557b6e2b4171a7329a51fe881734e5c35acb8694b54475d8be2c","source":{"kind":"arxiv","id":"astro-ph/0003235","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0003235","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0003235v1","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0003235","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"pith_short_12","alias_value":"XM6RSLEW45KX","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"pith_short_16","alias_value":"XM6RSLEW45KXW3RL","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"pith_short_8","alias_value":"XM6RSLEW","created_at":"2026-07-04T16:16:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:XM6RSLEW45KXW3RLIFY2OMU2KH","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0003235","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-03-16T12:45:26Z","cross_cats_sorted":[],"title_canon_sha256":"6525f738d27f4f9bec6dd636868697dc3e68aa7fcd540a53bc986c8c24707688","abstract_canon_sha256":"52b480fa374b50898d2b051b78dafa0dd0f0b1aa6cc287ac48307ba9a719b79b"},"schema_version":"1.0"},"canonical_sha256":"bb3d192c96e7557b6e2b4171a7329a51fe881734e5c35acb8694b54475d8be2c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:16:11.332719Z","signature_b64":"LLE56NuHlfzXa8WQf1imSkUmoU3OtcjhUgTANSpzNGsLwDJA01j25B3opCjHGuZQzB+E2QtrAIfekeM77QLxAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb3d192c96e7557b6e2b4171a7329a51fe881734e5c35acb8694b54475d8be2c","last_reissued_at":"2026-07-04T16:16:11.332158Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:16:11.332158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0003235","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":"2026-07-04T16:16:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YV/7fZG7scfJWxmWVu1Z8gvvpRC+IABn8B9+NTH69dF59Z54nrlnwGSKlLSbPyNhv3vpsO8SsdsydZmItjRCBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T06:58:32.305464Z"},"content_sha256":"5528589d67e03b278d98b6df3cfeab5e2f768f8ddcde676872a67d4f302971a3","schema_version":"1.0","event_id":"sha256:5528589d67e03b278d98b6df3cfeab5e2f768f8ddcde676872a67d4f302971a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:XM6RSLEW45KXW3RLIFY2OMU2KH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonthermal Emission from a Supernova Remnant in a Molecular Cloud","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) University of Virginia, (3) North Carolina State University, A.M.Bykov (1), Charlottesville, D.C.Ellison (3), R.A.Chevalier (2), Raleigh), St. Petersburg, Yu.A.Uvarov (1) ((1) A.F.Ioffe Institute","submitted_at":"2000-03-16T12:45:26Z","abstract_excerpt":"In evolved supernova remnants (SNRs) interacting with molecular clouds, such as IC 443, W44, and 3C391, a highly inhomogeneous structure consisting of a forward shock of moderate Mach number, a cooling layer, a dense radiative shell and an interior region filled with hot tenuous plasma is expected. We present a kinetic model of nonthermal electron injection, acceleration and propagation in that environment and find that these SNRs are efficient electron accelerators and sources of hard X- and gamma-ray emission. The energy spectrum of the nonthermal electrons is shaped by the joint action of f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0003235","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0003235/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":"2026-07-04T16:16:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n2G9UZ0eIxMjdEzbS5RB5RT1bEYQgF9L+guyIOI79FE4t0gxTdm2kfx1TYMu8Rd0p7vsU2zrf8GvZSUiIj4fBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T06:58:32.305848Z"},"content_sha256":"9a7b734f1776a546ff00e9cf73e99f03194acad95a1c76c1765927ffee35a3a2","schema_version":"1.0","event_id":"sha256:9a7b734f1776a546ff00e9cf73e99f03194acad95a1c76c1765927ffee35a3a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XM6RSLEW45KXW3RLIFY2OMU2KH/bundle.json","state_url":"https://pith.science/pith/XM6RSLEW45KXW3RLIFY2OMU2KH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XM6RSLEW45KXW3RLIFY2OMU2KH/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":"2026-07-05T06:58:32Z","links":{"resolver":"https://pith.science/pith/XM6RSLEW45KXW3RLIFY2OMU2KH","bundle":"https://pith.science/pith/XM6RSLEW45KXW3RLIFY2OMU2KH/bundle.json","state":"https://pith.science/pith/XM6RSLEW45KXW3RLIFY2OMU2KH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XM6RSLEW45KXW3RLIFY2OMU2KH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:XM6RSLEW45KXW3RLIFY2OMU2KH","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":"52b480fa374b50898d2b051b78dafa0dd0f0b1aa6cc287ac48307ba9a719b79b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-03-16T12:45:26Z","title_canon_sha256":"6525f738d27f4f9bec6dd636868697dc3e68aa7fcd540a53bc986c8c24707688"},"schema_version":"1.0","source":{"id":"astro-ph/0003235","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0003235","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0003235v1","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0003235","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"pith_short_12","alias_value":"XM6RSLEW45KX","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"pith_short_16","alias_value":"XM6RSLEW45KXW3RL","created_at":"2026-07-04T16:16:11Z"},{"alias_kind":"pith_short_8","alias_value":"XM6RSLEW","created_at":"2026-07-04T16:16:11Z"}],"graph_snapshots":[{"event_id":"sha256:9a7b734f1776a546ff00e9cf73e99f03194acad95a1c76c1765927ffee35a3a2","target":"graph","created_at":"2026-07-04T16:16:11Z","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/astro-ph/0003235/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In evolved supernova remnants (SNRs) interacting with molecular clouds, such as IC 443, W44, and 3C391, a highly inhomogeneous structure consisting of a forward shock of moderate Mach number, a cooling layer, a dense radiative shell and an interior region filled with hot tenuous plasma is expected. We present a kinetic model of nonthermal electron injection, acceleration and propagation in that environment and find that these SNRs are efficient electron accelerators and sources of hard X- and gamma-ray emission. The energy spectrum of the nonthermal electrons is shaped by the joint action of f","authors_text":"(2) University of Virginia, (3) North Carolina State University, A.M.Bykov (1), Charlottesville, D.C.Ellison (3), R.A.Chevalier (2), Raleigh), St. Petersburg, Yu.A.Uvarov (1) ((1) A.F.Ioffe Institute","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-03-16T12:45:26Z","title":"Nonthermal Emission from a Supernova Remnant in a Molecular Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0003235","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":"sha256:5528589d67e03b278d98b6df3cfeab5e2f768f8ddcde676872a67d4f302971a3","target":"record","created_at":"2026-07-04T16:16:11Z","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":"52b480fa374b50898d2b051b78dafa0dd0f0b1aa6cc287ac48307ba9a719b79b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-03-16T12:45:26Z","title_canon_sha256":"6525f738d27f4f9bec6dd636868697dc3e68aa7fcd540a53bc986c8c24707688"},"schema_version":"1.0","source":{"id":"astro-ph/0003235","kind":"arxiv","version":1}},"canonical_sha256":"bb3d192c96e7557b6e2b4171a7329a51fe881734e5c35acb8694b54475d8be2c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb3d192c96e7557b6e2b4171a7329a51fe881734e5c35acb8694b54475d8be2c","first_computed_at":"2026-07-04T16:16:11.332158Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:16:11.332158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LLE56NuHlfzXa8WQf1imSkUmoU3OtcjhUgTANSpzNGsLwDJA01j25B3opCjHGuZQzB+E2QtrAIfekeM77QLxAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:16:11.332719Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0003235","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5528589d67e03b278d98b6df3cfeab5e2f768f8ddcde676872a67d4f302971a3","sha256:9a7b734f1776a546ff00e9cf73e99f03194acad95a1c76c1765927ffee35a3a2"],"state_sha256":"90b4ff94940a900860dff60195d56b13ea16307945845dba6e174d78146ce55a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E/3opvZU6J3+h6PUHnCzyTL/nkTUEfpb0QtJtK27F8CCokkttnYLs87OhaG1YCwvbnAEND4pwameHq2o5+gQDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T06:58:32.307831Z","bundle_sha256":"176af57a597c5c9b916bade67a6c96d3c6f57861cecf7548fa2c45e59857523a"}}