{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:LCQS5CYISYDNMYHIZUODXGLBGN","short_pith_number":"pith:LCQS5CYI","canonical_record":{"source":{"id":"1305.6724","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-29T08:39:58Z","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"title_canon_sha256":"654a1c2c31dae6613f426bd9922ddd988004ced47762bbd941e51f32c74e5150","abstract_canon_sha256":"0254f58a087ab0bf14d0cefadfe90338f666b315637a838f1c7286838c1257be"},"schema_version":"1.0"},"canonical_sha256":"58a12e8b089606d660e8cd1c3b996133617b78213536dc22e9f9abaf5461fc22","source":{"kind":"arxiv","id":"1305.6724","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.6724","created_at":"2026-05-18T01:49:40Z"},{"alias_kind":"arxiv_version","alias_value":"1305.6724v1","created_at":"2026-05-18T01:49:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.6724","created_at":"2026-05-18T01:49:40Z"},{"alias_kind":"pith_short_12","alias_value":"LCQS5CYISYDN","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"LCQS5CYISYDNMYHI","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"LCQS5CYI","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:LCQS5CYISYDNMYHIZUODXGLBGN","target":"record","payload":{"canonical_record":{"source":{"id":"1305.6724","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-29T08:39:58Z","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"title_canon_sha256":"654a1c2c31dae6613f426bd9922ddd988004ced47762bbd941e51f32c74e5150","abstract_canon_sha256":"0254f58a087ab0bf14d0cefadfe90338f666b315637a838f1c7286838c1257be"},"schema_version":"1.0"},"canonical_sha256":"58a12e8b089606d660e8cd1c3b996133617b78213536dc22e9f9abaf5461fc22","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:40.363024Z","signature_b64":"B1vUNpZ0NJataK2NeYx2JOE0LD+DtBk6sO0tMulO0UBiuhoPKo0eevmj/8PJZsb6OMyb95FVcMdDjyHcWFwxBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58a12e8b089606d660e8cd1c3b996133617b78213536dc22e9f9abaf5461fc22","last_reissued_at":"2026-05-18T01:49:40.362404Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:40.362404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1305.6724","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":"2026-05-18T01:49:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9BuoHaxDldDri6T8Rw5fIM2Uxks9y5rnTKNGsAA0wBC8XbzSBAyQvUdhUxvazaP+oh3u5OefV+7IuPLn16nNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T05:17:58.661732Z"},"content_sha256":"eb5c1613291dfca7b1a14251f32eb13dfe1c505e751fa5e64e6c9d222818d6c7","schema_version":"1.0","event_id":"sha256:eb5c1613291dfca7b1a14251f32eb13dfe1c505e751fa5e64e6c9d222818d6c7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:LCQS5CYISYDNMYHIZUODXGLBGN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Towards a theory of extremely intermittent pulsars I: Does something orbits PSR B1931 + 24 ?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Fabrice Mottez (LUTH), Jean Heyvaerts (OAS), Silvano Bonazzola (LUTH)","submitted_at":"2013-05-29T08:39:58Z","abstract_excerpt":"We investigate whether one or many companions are orbiting the extremely intermittent pulsar PSR B1931+24. We constrained our analysis on previous observations of eight fundamental properties of PSR B1931+24. The most puzzling properties are the intermittent nature of the pulsar's activity, with active and quiet phases that alternate quasi-periodically; the variation of the slowing-down rate of its period between active and quiet phases; and because there are no timing residuals, it is highly unlikely that the pulsar has a massive companion. Here, we examine the effects that one putative compa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.6724","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":"2026-05-18T01:49:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PlNP6fwnm7n4laz/LK3zGuXB/XkaxcmPGN8bovb3kMSBGV3hiPAxxGcza3xvDRMK0h8zvbKAEYc5q1CpbkFxAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T05:17:58.662281Z"},"content_sha256":"26c0185ca66ff0644048573d12c8c097c457fb0b4c51dcc7bb0d7fa465ea398d","schema_version":"1.0","event_id":"sha256:26c0185ca66ff0644048573d12c8c097c457fb0b4c51dcc7bb0d7fa465ea398d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LCQS5CYISYDNMYHIZUODXGLBGN/bundle.json","state_url":"https://pith.science/pith/LCQS5CYISYDNMYHIZUODXGLBGN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LCQS5CYISYDNMYHIZUODXGLBGN/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":"2026-06-08T05:17:58Z","links":{"resolver":"https://pith.science/pith/LCQS5CYISYDNMYHIZUODXGLBGN","bundle":"https://pith.science/pith/LCQS5CYISYDNMYHIZUODXGLBGN/bundle.json","state":"https://pith.science/pith/LCQS5CYISYDNMYHIZUODXGLBGN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LCQS5CYISYDNMYHIZUODXGLBGN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:LCQS5CYISYDNMYHIZUODXGLBGN","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":"0254f58a087ab0bf14d0cefadfe90338f666b315637a838f1c7286838c1257be","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-29T08:39:58Z","title_canon_sha256":"654a1c2c31dae6613f426bd9922ddd988004ced47762bbd941e51f32c74e5150"},"schema_version":"1.0","source":{"id":"1305.6724","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.6724","created_at":"2026-05-18T01:49:40Z"},{"alias_kind":"arxiv_version","alias_value":"1305.6724v1","created_at":"2026-05-18T01:49:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.6724","created_at":"2026-05-18T01:49:40Z"},{"alias_kind":"pith_short_12","alias_value":"LCQS5CYISYDN","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"LCQS5CYISYDNMYHI","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"LCQS5CYI","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:26c0185ca66ff0644048573d12c8c097c457fb0b4c51dcc7bb0d7fa465ea398d","target":"graph","created_at":"2026-05-18T01:49:40Z","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":"We investigate whether one or many companions are orbiting the extremely intermittent pulsar PSR B1931+24. We constrained our analysis on previous observations of eight fundamental properties of PSR B1931+24. The most puzzling properties are the intermittent nature of the pulsar's activity, with active and quiet phases that alternate quasi-periodically; the variation of the slowing-down rate of its period between active and quiet phases; and because there are no timing residuals, it is highly unlikely that the pulsar has a massive companion. Here, we examine the effects that one putative compa","authors_text":"Fabrice Mottez (LUTH), Jean Heyvaerts (OAS), Silvano Bonazzola (LUTH)","cross_cats":["astro-ph.EP","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-29T08:39:58Z","title":"Towards a theory of extremely intermittent pulsars I: Does something orbits PSR B1931 + 24 ?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.6724","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:eb5c1613291dfca7b1a14251f32eb13dfe1c505e751fa5e64e6c9d222818d6c7","target":"record","created_at":"2026-05-18T01:49:40Z","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":"0254f58a087ab0bf14d0cefadfe90338f666b315637a838f1c7286838c1257be","cross_cats_sorted":["astro-ph.EP","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-29T08:39:58Z","title_canon_sha256":"654a1c2c31dae6613f426bd9922ddd988004ced47762bbd941e51f32c74e5150"},"schema_version":"1.0","source":{"id":"1305.6724","kind":"arxiv","version":1}},"canonical_sha256":"58a12e8b089606d660e8cd1c3b996133617b78213536dc22e9f9abaf5461fc22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58a12e8b089606d660e8cd1c3b996133617b78213536dc22e9f9abaf5461fc22","first_computed_at":"2026-05-18T01:49:40.362404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:40.362404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B1vUNpZ0NJataK2NeYx2JOE0LD+DtBk6sO0tMulO0UBiuhoPKo0eevmj/8PJZsb6OMyb95FVcMdDjyHcWFwxBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:40.363024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.6724","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb5c1613291dfca7b1a14251f32eb13dfe1c505e751fa5e64e6c9d222818d6c7","sha256:26c0185ca66ff0644048573d12c8c097c457fb0b4c51dcc7bb0d7fa465ea398d"],"state_sha256":"ec435d6111a189946bf537a17aa377d88dd2d9ef6e41d5b9bbeaef005cdce993"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MCNB7o0USDcMixm5pTNFzYrf+0GJOBNQwwl/ntKXmerGDQaY1OitbYnrDBB/+Qqcb5MJT1ISLbsGgSADFdkrCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T05:17:58.665769Z","bundle_sha256":"32d1a090d678a54277f3d07c3f491f69e3c7993908230f2665a5cea8e61c1a58"}}