{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MJXD36IAEOQRDAXLWHPQTSD7YZ","short_pith_number":"pith:MJXD36IA","canonical_record":{"source":{"id":"1407.6733","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-24T20:50:14Z","cross_cats_sorted":[],"title_canon_sha256":"54b1815a3aa88375678dcfef7a6888e361660be492183fadd86e035c0d5b5bbb","abstract_canon_sha256":"d7132d24e270d67acbf173dadc90600690659839be434f3fd79b98f9e17d2692"},"schema_version":"1.0"},"canonical_sha256":"626e3df90023a11182ebb1df09c87fc6710297faac1e7fb36fb822d3c0306ed9","source":{"kind":"arxiv","id":"1407.6733","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6733","created_at":"2026-05-18T02:28:22Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6733v3","created_at":"2026-05-18T02:28:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6733","created_at":"2026-05-18T02:28:22Z"},{"alias_kind":"pith_short_12","alias_value":"MJXD36IAEOQR","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MJXD36IAEOQRDAXL","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MJXD36IA","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MJXD36IAEOQRDAXLWHPQTSD7YZ","target":"record","payload":{"canonical_record":{"source":{"id":"1407.6733","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-24T20:50:14Z","cross_cats_sorted":[],"title_canon_sha256":"54b1815a3aa88375678dcfef7a6888e361660be492183fadd86e035c0d5b5bbb","abstract_canon_sha256":"d7132d24e270d67acbf173dadc90600690659839be434f3fd79b98f9e17d2692"},"schema_version":"1.0"},"canonical_sha256":"626e3df90023a11182ebb1df09c87fc6710297faac1e7fb36fb822d3c0306ed9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:22.876961Z","signature_b64":"HR1ht1elUI3hIS+7dj12/qNfcagXlibMGwIyi323I9VSHvpDKRuXdBWSRWUBfqv9Gu3lpgXkETCmRM3/7sFbCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"626e3df90023a11182ebb1df09c87fc6710297faac1e7fb36fb822d3c0306ed9","last_reissued_at":"2026-05-18T02:28:22.876283Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:22.876283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.6733","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:28:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h/VN6cDB8jiDEFF2eJX/1588YvxNmyG0oqVEq7KeG3XS/URMdehGoFWDUm2N+iGo+NmPALfijLAn7OZVPuBMAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:34:31.546035Z"},"content_sha256":"b5f19bb542234da8876cfc5182e3c3f09a94fdc6a75ac70a791207ab2983dc66","schema_version":"1.0","event_id":"sha256:b5f19bb542234da8876cfc5182e3c3f09a94fdc6a75ac70a791207ab2983dc66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MJXD36IAEOQRDAXLWHPQTSD7YZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Period clustering of the anomalous X-ray pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"G.S. Bisnovatyi-Kogan, N.R. Ikhsanov","submitted_at":"2014-07-24T20:50:14Z","abstract_excerpt":"In this paper we address the question of why the observed periods of the Anomalous X-ray Pulsars (AXPs) and Soft Gamma-ray Repeaters (SGRs) are clustered in the range 2-12 s. We explore a possibility to answer this question assuming that AXPs and SGRs are the descendants of High Mass X-ray Binaries (HMXBs) which have been disintegrated in the core-collapse supernova explosion. The spin period of neutron stars in HMXBs evolves towards the equilibrium period, averaging around a few seconds. After the explosion of its massive companion, the neutron star turns out to be embedded into a dense gaseo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6733","kind":"arxiv","version":3},"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":"2026-05-18T02:28:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GeX15srdwDflh9AWY5+1jwtoagjN7paK6SX0J0PiggqA66/YBm+Taf/f8bX3K0ZSdhzjSDMknI+sAGm4jtuoCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:34:31.546563Z"},"content_sha256":"e29d4d33b7983ba78cc41724a0ed9c30e08b154a65930263c670636c62f45fd6","schema_version":"1.0","event_id":"sha256:e29d4d33b7983ba78cc41724a0ed9c30e08b154a65930263c670636c62f45fd6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ/bundle.json","state_url":"https://pith.science/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ/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":"2026-06-01T11:34:31Z","links":{"resolver":"https://pith.science/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ","bundle":"https://pith.science/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ/bundle.json","state":"https://pith.science/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJXD36IAEOQRDAXLWHPQTSD7YZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MJXD36IAEOQRDAXLWHPQTSD7YZ","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":"d7132d24e270d67acbf173dadc90600690659839be434f3fd79b98f9e17d2692","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-24T20:50:14Z","title_canon_sha256":"54b1815a3aa88375678dcfef7a6888e361660be492183fadd86e035c0d5b5bbb"},"schema_version":"1.0","source":{"id":"1407.6733","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6733","created_at":"2026-05-18T02:28:22Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6733v3","created_at":"2026-05-18T02:28:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6733","created_at":"2026-05-18T02:28:22Z"},{"alias_kind":"pith_short_12","alias_value":"MJXD36IAEOQR","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MJXD36IAEOQRDAXL","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MJXD36IA","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:e29d4d33b7983ba78cc41724a0ed9c30e08b154a65930263c670636c62f45fd6","target":"graph","created_at":"2026-05-18T02:28:22Z","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":"In this paper we address the question of why the observed periods of the Anomalous X-ray Pulsars (AXPs) and Soft Gamma-ray Repeaters (SGRs) are clustered in the range 2-12 s. We explore a possibility to answer this question assuming that AXPs and SGRs are the descendants of High Mass X-ray Binaries (HMXBs) which have been disintegrated in the core-collapse supernova explosion. The spin period of neutron stars in HMXBs evolves towards the equilibrium period, averaging around a few seconds. After the explosion of its massive companion, the neutron star turns out to be embedded into a dense gaseo","authors_text":"G.S. Bisnovatyi-Kogan, N.R. Ikhsanov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-24T20:50:14Z","title":"Period clustering of the anomalous X-ray pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6733","kind":"arxiv","version":3},"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:b5f19bb542234da8876cfc5182e3c3f09a94fdc6a75ac70a791207ab2983dc66","target":"record","created_at":"2026-05-18T02:28:22Z","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":"d7132d24e270d67acbf173dadc90600690659839be434f3fd79b98f9e17d2692","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-07-24T20:50:14Z","title_canon_sha256":"54b1815a3aa88375678dcfef7a6888e361660be492183fadd86e035c0d5b5bbb"},"schema_version":"1.0","source":{"id":"1407.6733","kind":"arxiv","version":3}},"canonical_sha256":"626e3df90023a11182ebb1df09c87fc6710297faac1e7fb36fb822d3c0306ed9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"626e3df90023a11182ebb1df09c87fc6710297faac1e7fb36fb822d3c0306ed9","first_computed_at":"2026-05-18T02:28:22.876283Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:22.876283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HR1ht1elUI3hIS+7dj12/qNfcagXlibMGwIyi323I9VSHvpDKRuXdBWSRWUBfqv9Gu3lpgXkETCmRM3/7sFbCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:22.876961Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.6733","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5f19bb542234da8876cfc5182e3c3f09a94fdc6a75ac70a791207ab2983dc66","sha256:e29d4d33b7983ba78cc41724a0ed9c30e08b154a65930263c670636c62f45fd6"],"state_sha256":"a98033b8718ed85099c381044076dc0d173753db9eed3dfcd9988fb3b508757f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rp8TadKnFcJAuUT35ojl2uZIjMmRxhx/QLw7mp8Du1mTNGhzcKtTUOpUIuSyLKvA1mb4XcWY0jtVm5VHNqZuAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T11:34:31.548786Z","bundle_sha256":"71c2b4bc231ab8888d15dbae17378b02cc1286932f349d07885048c15a17b825"}}