{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:72KRZNE5NUXSSIQVVNFNCVZIRG","short_pith_number":"pith:72KRZNE5","canonical_record":{"source":{"id":"0901.1055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-01-08T14:27:06Z","cross_cats_sorted":[],"title_canon_sha256":"246a575ce8924524fd552268fa52486bec9077b94b5d2aa1a76be507188c67f4","abstract_canon_sha256":"6904fb2e07581b838e682adbfd8759a9e56b295e5cde3b83ed66b7f17dbbc387"},"schema_version":"1.0"},"canonical_sha256":"fe951cb49d6d2f292215ab4ad1572889b73053060dfd10210c961c71a4b34c21","source":{"kind":"arxiv","id":"0901.1055","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.1055","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"arxiv_version","alias_value":"0901.1055v1","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.1055","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"pith_short_12","alias_value":"72KRZNE5NUXS","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"pith_short_16","alias_value":"72KRZNE5NUXSSIQV","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"pith_short_8","alias_value":"72KRZNE5","created_at":"2026-07-04T17:14:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:72KRZNE5NUXSSIQVVNFNCVZIRG","target":"record","payload":{"canonical_record":{"source":{"id":"0901.1055","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-01-08T14:27:06Z","cross_cats_sorted":[],"title_canon_sha256":"246a575ce8924524fd552268fa52486bec9077b94b5d2aa1a76be507188c67f4","abstract_canon_sha256":"6904fb2e07581b838e682adbfd8759a9e56b295e5cde3b83ed66b7f17dbbc387"},"schema_version":"1.0"},"canonical_sha256":"fe951cb49d6d2f292215ab4ad1572889b73053060dfd10210c961c71a4b34c21","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:14:01.681664Z","signature_b64":"AOsrvjoNIAtmJZ1eRbVTefijBpcnXDDWwdBFsl8n36sWuJinhfE2LXGmas9X11t/JexOz/lFefcRox8tJ3rmAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe951cb49d6d2f292215ab4ad1572889b73053060dfd10210c961c71a4b34c21","last_reissued_at":"2026-07-04T17:14:01.681249Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:14:01.681249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0901.1055","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":"2026-07-04T17:14:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"J7cC98aAa/BZ1/HlJFxZ0a3qvkOQ9bpDvn0Tq/lgxNSbgONCEUDja95cl0dZNWjbD3lPzab9ewFtDKhOGaeDDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T06:31:09.333467Z"},"content_sha256":"a5c6b7a1b621173d878fe9ba915f051b8f645490761c5e2ea0108cf60100e666","schema_version":"1.0","event_id":"sha256:a5c6b7a1b621173d878fe9ba915f051b8f645490761c5e2ea0108cf60100e666"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:72KRZNE5NUXSSIQVVNFNCVZIRG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pulsar spin-velocity alignment from single and binary neutron star progenitors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"2) (1-Sternberg Astronomical Institute, 2-Department of Physics Moscow State University), A.G. Kuranov (1), K.A. Postnov (1, S.B. Popov (1)","submitted_at":"2009-01-08T14:27:06Z","abstract_excerpt":"The role of binary progenitors of neutron stars in the apparent distribution of space velocities and spin-velocity alignment observed in young pulsars is studied. A Monte-Carlo synthesis of pulsar population from single and binary stars with different assumptions about the NS natal kick model (direction distribution, amplitude, and kick reduction in binary progenitors which experienced mass exchange due to Roche lobe overflow with initial masses on the main sequence from the range 8-11 $M_\\odot$) is performed. The calculated spin-velocity alignment distributions are compared with observational"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.1055","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/0901.1055/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":"2026-07-04T17:14:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I9kCOzor7pe2E30sJZKkkTHNue0lr3forLKvgNCLAOEsdQF8mGUpchC+AS8qQ3+QlC4+jk4hbZuLg2815UT2Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T06:31:09.333975Z"},"content_sha256":"a7ed37b578904678512dbd86b14df5fdc31d2a3dac2ff0b7bb2d150b4621f90c","schema_version":"1.0","event_id":"sha256:a7ed37b578904678512dbd86b14df5fdc31d2a3dac2ff0b7bb2d150b4621f90c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/72KRZNE5NUXSSIQVVNFNCVZIRG/bundle.json","state_url":"https://pith.science/pith/72KRZNE5NUXSSIQVVNFNCVZIRG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/72KRZNE5NUXSSIQVVNFNCVZIRG/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":"2026-08-04T06:31:09Z","links":{"resolver":"https://pith.science/pith/72KRZNE5NUXSSIQVVNFNCVZIRG","bundle":"https://pith.science/pith/72KRZNE5NUXSSIQVVNFNCVZIRG/bundle.json","state":"https://pith.science/pith/72KRZNE5NUXSSIQVVNFNCVZIRG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/72KRZNE5NUXSSIQVVNFNCVZIRG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:72KRZNE5NUXSSIQVVNFNCVZIRG","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":"6904fb2e07581b838e682adbfd8759a9e56b295e5cde3b83ed66b7f17dbbc387","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-01-08T14:27:06Z","title_canon_sha256":"246a575ce8924524fd552268fa52486bec9077b94b5d2aa1a76be507188c67f4"},"schema_version":"1.0","source":{"id":"0901.1055","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0901.1055","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"arxiv_version","alias_value":"0901.1055v1","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0901.1055","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"pith_short_12","alias_value":"72KRZNE5NUXS","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"pith_short_16","alias_value":"72KRZNE5NUXSSIQV","created_at":"2026-07-04T17:14:01Z"},{"alias_kind":"pith_short_8","alias_value":"72KRZNE5","created_at":"2026-07-04T17:14:01Z"}],"graph_snapshots":[{"event_id":"sha256:a7ed37b578904678512dbd86b14df5fdc31d2a3dac2ff0b7bb2d150b4621f90c","target":"graph","created_at":"2026-07-04T17:14:01Z","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/0901.1055/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The role of binary progenitors of neutron stars in the apparent distribution of space velocities and spin-velocity alignment observed in young pulsars is studied. A Monte-Carlo synthesis of pulsar population from single and binary stars with different assumptions about the NS natal kick model (direction distribution, amplitude, and kick reduction in binary progenitors which experienced mass exchange due to Roche lobe overflow with initial masses on the main sequence from the range 8-11 $M_\\odot$) is performed. The calculated spin-velocity alignment distributions are compared with observational","authors_text":"2) (1-Sternberg Astronomical Institute, 2-Department of Physics Moscow State University), A.G. Kuranov (1), K.A. Postnov (1, S.B. Popov (1)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-01-08T14:27:06Z","title":"Pulsar spin-velocity alignment from single and binary neutron star progenitors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0901.1055","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:a5c6b7a1b621173d878fe9ba915f051b8f645490761c5e2ea0108cf60100e666","target":"record","created_at":"2026-07-04T17:14:01Z","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":"6904fb2e07581b838e682adbfd8759a9e56b295e5cde3b83ed66b7f17dbbc387","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-01-08T14:27:06Z","title_canon_sha256":"246a575ce8924524fd552268fa52486bec9077b94b5d2aa1a76be507188c67f4"},"schema_version":"1.0","source":{"id":"0901.1055","kind":"arxiv","version":1}},"canonical_sha256":"fe951cb49d6d2f292215ab4ad1572889b73053060dfd10210c961c71a4b34c21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe951cb49d6d2f292215ab4ad1572889b73053060dfd10210c961c71a4b34c21","first_computed_at":"2026-07-04T17:14:01.681249Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:14:01.681249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AOsrvjoNIAtmJZ1eRbVTefijBpcnXDDWwdBFsl8n36sWuJinhfE2LXGmas9X11t/JexOz/lFefcRox8tJ3rmAA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:14:01.681664Z","signed_message":"canonical_sha256_bytes"},"source_id":"0901.1055","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5c6b7a1b621173d878fe9ba915f051b8f645490761c5e2ea0108cf60100e666","sha256:a7ed37b578904678512dbd86b14df5fdc31d2a3dac2ff0b7bb2d150b4621f90c"],"state_sha256":"7029ec496ff5e745e1b98360886660bb830325e2359bdc8ad0e1001ff56292df"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ChL7S3+PRL2hEdjurUndlY6H6rHVA2iwBimNDCuX9KE2cgrpH0bm0tdZIZX2XY3OYwhIVBkvwQil5LT+ogkdDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T06:31:09.338436Z","bundle_sha256":"d6fc04cc10e33dc38c49989f53a969259187124641ade139d159d169db3e40a1"}}