{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:B7ARABLNGCQ5IMOMD2B7ZDUEY7","short_pith_number":"pith:B7ARABLN","canonical_record":{"source":{"id":"2605.24917","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-24T07:47:08Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"7a5b826085aae9ad42fd370df9c2d80bebf0babfa1df391021ce5bec2ba9dd71","abstract_canon_sha256":"b3d952018a081a20745e404d46c87d33c81e7e75bc00872135d4d07b8375d449"},"schema_version":"1.0"},"canonical_sha256":"0fc110056d30a1d431cc1e83fc8e84c7f776c913d0b109c6997b1ea4412569de","source":{"kind":"arxiv","id":"2605.24917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.24917","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"arxiv_version","alias_value":"2605.24917v1","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.24917","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"pith_short_12","alias_value":"B7ARABLNGCQ5","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"pith_short_16","alias_value":"B7ARABLNGCQ5IMOM","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"pith_short_8","alias_value":"B7ARABLN","created_at":"2026-05-26T01:04:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:B7ARABLNGCQ5IMOMD2B7ZDUEY7","target":"record","payload":{"canonical_record":{"source":{"id":"2605.24917","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-24T07:47:08Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"7a5b826085aae9ad42fd370df9c2d80bebf0babfa1df391021ce5bec2ba9dd71","abstract_canon_sha256":"b3d952018a081a20745e404d46c87d33c81e7e75bc00872135d4d07b8375d449"},"schema_version":"1.0"},"canonical_sha256":"0fc110056d30a1d431cc1e83fc8e84c7f776c913d0b109c6997b1ea4412569de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-26T01:04:05.758308Z","signature_b64":"kvv0P3V1qMY7pPPl/nnBHaZvQflIZMVtY/JPObP0aTh6L71HE0xGzfU8dNKnbLLyF5mFlLi5Ize6CaYTDW2cDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0fc110056d30a1d431cc1e83fc8e84c7f776c913d0b109c6997b1ea4412569de","last_reissued_at":"2026-05-26T01:04:05.757739Z","signature_status":"signed_v1","first_computed_at":"2026-05-26T01:04:05.757739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.24917","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":"2026-05-26T01:04:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HlYGXbt6enY4/hgGMwyW2mjVQ6FAHUpfMTiUefTPqPks0A4r0taX9U3p/6ve57cwVB8oFCc2bXl9EbiosfTABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:24:51.268349Z"},"content_sha256":"87c111f08f12d6b53bfd2bca540c34664ccd9a11a784a4653a0f020a950968a5","schema_version":"1.0","event_id":"sha256:87c111f08f12d6b53bfd2bca540c34664ccd9a11a784a4653a0f020a950968a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:B7ARABLNGCQ5IMOMD2B7ZDUEY7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mass distribution of neutron stars in binary systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Chunhua Zhu, Guoliang Lv, Helei Liu, Lin Li, Sufen Guo, Zhe Hu, Zhenwei Li, Zhuowen Li","submitted_at":"2026-05-24T07:47:08Z","abstract_excerpt":"It is known that the mass distribution of the known neutron stars (NSs) exhibits a bimodal pattern. The origin of this distribution remains a subject of debate. We constructed a super-Eddington accretion model for accreting neutron stars and investigated the mass growth and distribution of these stars using the population synthesis method. We find, in our model, the mass growth of NSs depends on the binary orbital period and the mass of the donor star. Our results can successfully account for the bimodal distribution of NS masses. The peak distribution of NS masses at around ~ 1.8 Msun primari"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.24917","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/2605.24917/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":"2026-05-26T01:04:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DOci+fV3RzLYZmhbZWFXVdurjTQlj160Rn2kivZ2Hl0ydBSe54OtkxWbeCTZgPLLhuYAanAA/EgWiDZFRVsgAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T15:24:51.269088Z"},"content_sha256":"1e40015440e1e8fadaa26954f1c7e7182c1f131d118e6b874e0f772de022fd67","schema_version":"1.0","event_id":"sha256:1e40015440e1e8fadaa26954f1c7e7182c1f131d118e6b874e0f772de022fd67"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7/bundle.json","state_url":"https://pith.science/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7/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":"2026-05-26T15:24:51Z","links":{"resolver":"https://pith.science/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7","bundle":"https://pith.science/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7/bundle.json","state":"https://pith.science/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B7ARABLNGCQ5IMOMD2B7ZDUEY7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:B7ARABLNGCQ5IMOMD2B7ZDUEY7","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":"b3d952018a081a20745e404d46c87d33c81e7e75bc00872135d4d07b8375d449","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-24T07:47:08Z","title_canon_sha256":"7a5b826085aae9ad42fd370df9c2d80bebf0babfa1df391021ce5bec2ba9dd71"},"schema_version":"1.0","source":{"id":"2605.24917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.24917","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"arxiv_version","alias_value":"2605.24917v1","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.24917","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"pith_short_12","alias_value":"B7ARABLNGCQ5","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"pith_short_16","alias_value":"B7ARABLNGCQ5IMOM","created_at":"2026-05-26T01:04:05Z"},{"alias_kind":"pith_short_8","alias_value":"B7ARABLN","created_at":"2026-05-26T01:04:05Z"}],"graph_snapshots":[{"event_id":"sha256:1e40015440e1e8fadaa26954f1c7e7182c1f131d118e6b874e0f772de022fd67","target":"graph","created_at":"2026-05-26T01:04:05Z","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/2605.24917/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is known that the mass distribution of the known neutron stars (NSs) exhibits a bimodal pattern. The origin of this distribution remains a subject of debate. We constructed a super-Eddington accretion model for accreting neutron stars and investigated the mass growth and distribution of these stars using the population synthesis method. We find, in our model, the mass growth of NSs depends on the binary orbital period and the mass of the donor star. Our results can successfully account for the bimodal distribution of NS masses. The peak distribution of NS masses at around ~ 1.8 Msun primari","authors_text":"Chunhua Zhu, Guoliang Lv, Helei Liu, Lin Li, Sufen Guo, Zhe Hu, Zhenwei Li, Zhuowen Li","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-24T07:47:08Z","title":"Mass distribution of neutron stars in binary systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.24917","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":"sha256:87c111f08f12d6b53bfd2bca540c34664ccd9a11a784a4653a0f020a950968a5","target":"record","created_at":"2026-05-26T01:04:05Z","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":"b3d952018a081a20745e404d46c87d33c81e7e75bc00872135d4d07b8375d449","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-05-24T07:47:08Z","title_canon_sha256":"7a5b826085aae9ad42fd370df9c2d80bebf0babfa1df391021ce5bec2ba9dd71"},"schema_version":"1.0","source":{"id":"2605.24917","kind":"arxiv","version":1}},"canonical_sha256":"0fc110056d30a1d431cc1e83fc8e84c7f776c913d0b109c6997b1ea4412569de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0fc110056d30a1d431cc1e83fc8e84c7f776c913d0b109c6997b1ea4412569de","first_computed_at":"2026-05-26T01:04:05.757739Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T01:04:05.757739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kvv0P3V1qMY7pPPl/nnBHaZvQflIZMVtY/JPObP0aTh6L71HE0xGzfU8dNKnbLLyF5mFlLi5Ize6CaYTDW2cDQ==","signature_status":"signed_v1","signed_at":"2026-05-26T01:04:05.758308Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.24917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87c111f08f12d6b53bfd2bca540c34664ccd9a11a784a4653a0f020a950968a5","sha256:1e40015440e1e8fadaa26954f1c7e7182c1f131d118e6b874e0f772de022fd67"],"state_sha256":"08af094086875a46d75d1ee0cd0dd59f6306ab8ee561948483bf45b23e2856b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nmkYsNIioVuQIeX/KLlOoEv4Wth9D/MARZed81+9NKWh6Lut2YNdXUEENgQ+ZX8c73PawiMpW5p/GuYvplD4Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T15:24:51.272917Z","bundle_sha256":"34befa5950a1c9fc32ea79181278877a053f4794a05b44914c54bb2c61701335"}}