{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:XWUSAMBNPSIWRRTLSUJD2MAW6L","short_pith_number":"pith:XWUSAMBN","canonical_record":{"source":{"id":"astro-ph/9508155","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-31T18:52:15Z","cross_cats_sorted":[],"title_canon_sha256":"7181197611ae1e846a9ad7645c5dffcd3ccc1e5c5adea3a5a03a1512075443de","abstract_canon_sha256":"c92fcf5c69bde2d183374b31d93734eafbff6812e3708699d129df8ea9434974"},"schema_version":"1.0"},"canonical_sha256":"bda920302d7c9168c66b95123d3016f2eb89fce2bf57785e9f3a9964aba031d0","source":{"kind":"arxiv","id":"astro-ph/9508155","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9508155","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9508155v2","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9508155","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"pith_short_12","alias_value":"XWUSAMBNPSIW","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"pith_short_16","alias_value":"XWUSAMBNPSIWRRTL","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"pith_short_8","alias_value":"XWUSAMBN","created_at":"2026-07-04T15:58:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:XWUSAMBNPSIWRRTLSUJD2MAW6L","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9508155","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-31T18:52:15Z","cross_cats_sorted":[],"title_canon_sha256":"7181197611ae1e846a9ad7645c5dffcd3ccc1e5c5adea3a5a03a1512075443de","abstract_canon_sha256":"c92fcf5c69bde2d183374b31d93734eafbff6812e3708699d129df8ea9434974"},"schema_version":"1.0"},"canonical_sha256":"bda920302d7c9168c66b95123d3016f2eb89fce2bf57785e9f3a9964aba031d0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:58:06.024553Z","signature_b64":"k757R0q/GvK0jOOIbqnVExDCO2NHah6YydCyPlROMQp01ZTlLVNnl1574mwycSST01YCI+03V0OSzufayxx+AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bda920302d7c9168c66b95123d3016f2eb89fce2bf57785e9f3a9964aba031d0","last_reissued_at":"2026-07-04T15:58:06.024205Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:58:06.024205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9508155","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":"2026-07-04T15:58:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jx08irjCmvdaSOSlM1oTiHbrd2pBiHFXAn7q7x6avjEiITpfBVIs/A3rHy03m4GBP0NP6+rV/2YO6IghKFq9BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T09:32:50.266762Z"},"content_sha256":"94ab694e1db71ca4fe75b491e6cdab8233a7ffc691b668cca7548d6307eb691f","schema_version":"1.0","event_id":"sha256:94ab694e1db71ca4fe75b491e6cdab8233a7ffc691b668cca7548d6307eb691f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:XWUSAMBNPSIWRRTLSUJD2MAW6L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gamma Ray Pulsars: Emission from Extended Polar Cap Cascades","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Joseph K. Daugherty (UNCA) & Alice K. Harding (NASA/GSFC)","submitted_at":"1995-08-31T18:52:15Z","abstract_excerpt":"We have used a Monte Carlo simulation of a Polar Cap (PC) model of gamma-ray pulsars to estimate light curves and phase-resolved spectra for sources whose rotational and magnetic axes are oriented so that only one of the magnetic poles produces emission directed at the Earth. In this Single Polar Cap (SPC) scenario, even sources whose light curves have two distinct peaks (Crab, Vela, Geminga, PSR B1951+32) are due to emission concentrated near the rim of a single PC. If the inclination alpha is comparable to the half-width of the PC gamma-beam, alpha ~ theta_{b}, the peak-to-peak phase separat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9508155","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/astro-ph/9508155/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":"2026-07-04T15:58:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VC7E16HE82x16YyLEwk5DjNphQfZwS/t4BCHaVwcmDtIESsAeU1mwqzfaw314VBPUiBuo701xzLVuj0zt4ZfBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T09:32:50.267317Z"},"content_sha256":"83387feb619325676ec69a19a30ae0cae570ebd3a622b010c14a8c3bc6145fc7","schema_version":"1.0","event_id":"sha256:83387feb619325676ec69a19a30ae0cae570ebd3a622b010c14a8c3bc6145fc7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L/bundle.json","state_url":"https://pith.science/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L/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":"2026-08-17T09:32:50Z","links":{"resolver":"https://pith.science/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L","bundle":"https://pith.science/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L/bundle.json","state":"https://pith.science/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XWUSAMBNPSIWRRTLSUJD2MAW6L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:XWUSAMBNPSIWRRTLSUJD2MAW6L","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":"c92fcf5c69bde2d183374b31d93734eafbff6812e3708699d129df8ea9434974","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-31T18:52:15Z","title_canon_sha256":"7181197611ae1e846a9ad7645c5dffcd3ccc1e5c5adea3a5a03a1512075443de"},"schema_version":"1.0","source":{"id":"astro-ph/9508155","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9508155","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9508155v2","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9508155","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"pith_short_12","alias_value":"XWUSAMBNPSIW","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"pith_short_16","alias_value":"XWUSAMBNPSIWRRTL","created_at":"2026-07-04T15:58:06Z"},{"alias_kind":"pith_short_8","alias_value":"XWUSAMBN","created_at":"2026-07-04T15:58:06Z"}],"graph_snapshots":[{"event_id":"sha256:83387feb619325676ec69a19a30ae0cae570ebd3a622b010c14a8c3bc6145fc7","target":"graph","created_at":"2026-07-04T15:58:06Z","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/9508155/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have used a Monte Carlo simulation of a Polar Cap (PC) model of gamma-ray pulsars to estimate light curves and phase-resolved spectra for sources whose rotational and magnetic axes are oriented so that only one of the magnetic poles produces emission directed at the Earth. In this Single Polar Cap (SPC) scenario, even sources whose light curves have two distinct peaks (Crab, Vela, Geminga, PSR B1951+32) are due to emission concentrated near the rim of a single PC. If the inclination alpha is comparable to the half-width of the PC gamma-beam, alpha ~ theta_{b}, the peak-to-peak phase separat","authors_text":"Joseph K. Daugherty (UNCA) & Alice K. Harding (NASA/GSFC)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1995-08-31T18:52:15Z","title":"Gamma Ray Pulsars: Emission from Extended Polar Cap Cascades"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9508155","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":"sha256:94ab694e1db71ca4fe75b491e6cdab8233a7ffc691b668cca7548d6307eb691f","target":"record","created_at":"2026-07-04T15:58:06Z","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":"c92fcf5c69bde2d183374b31d93734eafbff6812e3708699d129df8ea9434974","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1995-08-31T18:52:15Z","title_canon_sha256":"7181197611ae1e846a9ad7645c5dffcd3ccc1e5c5adea3a5a03a1512075443de"},"schema_version":"1.0","source":{"id":"astro-ph/9508155","kind":"arxiv","version":2}},"canonical_sha256":"bda920302d7c9168c66b95123d3016f2eb89fce2bf57785e9f3a9964aba031d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bda920302d7c9168c66b95123d3016f2eb89fce2bf57785e9f3a9964aba031d0","first_computed_at":"2026-07-04T15:58:06.024205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:58:06.024205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k757R0q/GvK0jOOIbqnVExDCO2NHah6YydCyPlROMQp01ZTlLVNnl1574mwycSST01YCI+03V0OSzufayxx+AA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:58:06.024553Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9508155","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:94ab694e1db71ca4fe75b491e6cdab8233a7ffc691b668cca7548d6307eb691f","sha256:83387feb619325676ec69a19a30ae0cae570ebd3a622b010c14a8c3bc6145fc7"],"state_sha256":"b70eedee66967ba374a1616a47a82e261c2b399ce2aa2f7b70d81f94057773ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pLHMibYSTeH4d3DkWOFIbV5qgSROf1dQc1dGCnsyGWDyI61tBgtQGC09+mpijaO5LsgOn5lDN6vyN0wO0V1hAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T09:32:50.272045Z","bundle_sha256":"d0990de3e3c6d7d38a5dc97161f9bc14f0ec85db93da9840106587f2c7e8d331"}}