{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7NVFJGMCUY2O46XHN5LLC556N3","short_pith_number":"pith:7NVFJGMC","canonical_record":{"source":{"id":"1503.06276","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-03-21T07:58:46Z","cross_cats_sorted":[],"title_canon_sha256":"0d9db5f495f8f9137b9924e6a3ff685c208be5678ec60b437713cb37ff2bc0dd","abstract_canon_sha256":"0ed0cad576517ea74509dc1e2c2da11622abd713f1db62697170326be42bfd61"},"schema_version":"1.0"},"canonical_sha256":"fb6a549982a634ee7ae76f56b177be6ef71fe366b6ce2a38fb48c725f92fbe2f","source":{"kind":"arxiv","id":"1503.06276","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.06276","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"arxiv_version","alias_value":"1503.06276v1","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06276","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"pith_short_12","alias_value":"7NVFJGMCUY2O","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7NVFJGMCUY2O46XH","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7NVFJGMC","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7NVFJGMCUY2O46XHN5LLC556N3","target":"record","payload":{"canonical_record":{"source":{"id":"1503.06276","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-03-21T07:58:46Z","cross_cats_sorted":[],"title_canon_sha256":"0d9db5f495f8f9137b9924e6a3ff685c208be5678ec60b437713cb37ff2bc0dd","abstract_canon_sha256":"0ed0cad576517ea74509dc1e2c2da11622abd713f1db62697170326be42bfd61"},"schema_version":"1.0"},"canonical_sha256":"fb6a549982a634ee7ae76f56b177be6ef71fe366b6ce2a38fb48c725f92fbe2f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:37.000099Z","signature_b64":"4LL9QeDue84DfE/PWVgzOCsKPLpIjk5d3swHoe6EXfOT9Zgf3ljL95if6mxLz0DtLi1ifhMnxgLp2sUVlKnjAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb6a549982a634ee7ae76f56b177be6ef71fe366b6ce2a38fb48c725f92fbe2f","last_reissued_at":"2026-05-18T01:59:36.999391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:36.999391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.06276","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":"2026-05-18T01:59:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SZm5c375TwlExe0n0ayZ4NWp3ZbKrVR4Ghx+FIPiGMAS9Nd4/ESLvW+RlSFElZTobF0VaHD5iYEjW0ELKUmnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:08:26.096361Z"},"content_sha256":"e63217c0a790d5b3959261fe3196a653207c911040d94c372c2f9561b11f3e95","schema_version":"1.0","event_id":"sha256:e63217c0a790d5b3959261fe3196a653207c911040d94c372c2f9561b11f3e95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7NVFJGMCUY2O46XHN5LLC556N3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PSR J1930-1852: a pulsar in the widest known orbit around another neutron star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Cramer, A. Dittmann, A. Laws, A. Vanderhout, B. Miller, B. N. Barlow, C. McGough, C. Pruett, D. R. Lorimer, D. Yencsik, E. Filik, E. Stone, G. Trevino, J. A. Marlowe, J. Fink, J. K. Swiggum, J. Thorley, K. Wenger, L. Teter, M. A. McLaughlin, M. Carter, M. Doehler, M. Hilzendeger, M. Weaver, R. Andrews, R. Crowley, R. Lynch, R. Nunez, R. Rosen, S. Dydiw, S. Ernst, S. Gray, S. Heatherly, S. Scoles, T. Hockett, T. Snyder","submitted_at":"2015-03-21T07:58:46Z","abstract_excerpt":"In the summer of 2012, during a Pulsar Search Collaboratory workshop, two high-school students discovered J1930$-$1852, a pulsar in a double neutron star (DNS) system. Most DNS systems are characterized by short orbital periods, rapid spin periods and eccentric orbits. However, J1930$-$1852 has the longest spin period ($P_{\\rm spin}\\sim$185 ms) and orbital period ($P_{\\rm b}\\sim$45 days) yet measured among known, recycled pulsars in DNS systems, implying a shorter than average and/or inefficient recycling period before its companion went supernova. We measure the relativistic advance of perias"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06276","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":"2026-05-18T01:59:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"04aq8m6SP43vb724rBv18/jcsr1z8E3PM3BxPYMbHLJAb8WArNvB4QFpRESNwbZhKb1h92PtoJMXQ49vV/CCAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:08:26.097075Z"},"content_sha256":"321267894352d267b3bbf21fd2eb1d461d4249f5ccf577948dc821ba7df23be6","schema_version":"1.0","event_id":"sha256:321267894352d267b3bbf21fd2eb1d461d4249f5ccf577948dc821ba7df23be6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7NVFJGMCUY2O46XHN5LLC556N3/bundle.json","state_url":"https://pith.science/pith/7NVFJGMCUY2O46XHN5LLC556N3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7NVFJGMCUY2O46XHN5LLC556N3/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":"2026-05-26T17:08:26Z","links":{"resolver":"https://pith.science/pith/7NVFJGMCUY2O46XHN5LLC556N3","bundle":"https://pith.science/pith/7NVFJGMCUY2O46XHN5LLC556N3/bundle.json","state":"https://pith.science/pith/7NVFJGMCUY2O46XHN5LLC556N3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7NVFJGMCUY2O46XHN5LLC556N3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7NVFJGMCUY2O46XHN5LLC556N3","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":"0ed0cad576517ea74509dc1e2c2da11622abd713f1db62697170326be42bfd61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-03-21T07:58:46Z","title_canon_sha256":"0d9db5f495f8f9137b9924e6a3ff685c208be5678ec60b437713cb37ff2bc0dd"},"schema_version":"1.0","source":{"id":"1503.06276","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.06276","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"arxiv_version","alias_value":"1503.06276v1","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.06276","created_at":"2026-05-18T01:59:36Z"},{"alias_kind":"pith_short_12","alias_value":"7NVFJGMCUY2O","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7NVFJGMCUY2O46XH","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7NVFJGMC","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:321267894352d267b3bbf21fd2eb1d461d4249f5ccf577948dc821ba7df23be6","target":"graph","created_at":"2026-05-18T01:59:36Z","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 the summer of 2012, during a Pulsar Search Collaboratory workshop, two high-school students discovered J1930$-$1852, a pulsar in a double neutron star (DNS) system. Most DNS systems are characterized by short orbital periods, rapid spin periods and eccentric orbits. However, J1930$-$1852 has the longest spin period ($P_{\\rm spin}\\sim$185 ms) and orbital period ($P_{\\rm b}\\sim$45 days) yet measured among known, recycled pulsars in DNS systems, implying a shorter than average and/or inefficient recycling period before its companion went supernova. We measure the relativistic advance of perias","authors_text":"A. Cramer, A. Dittmann, A. Laws, A. Vanderhout, B. Miller, B. N. Barlow, C. McGough, C. Pruett, D. R. Lorimer, D. Yencsik, E. Filik, E. Stone, G. Trevino, J. A. Marlowe, J. Fink, J. K. Swiggum, J. Thorley, K. Wenger, L. Teter, M. A. McLaughlin, M. Carter, M. Doehler, M. Hilzendeger, M. Weaver, R. Andrews, R. Crowley, R. Lynch, R. Nunez, R. Rosen, S. Dydiw, S. Ernst, S. Gray, S. Heatherly, S. Scoles, T. Hockett, T. Snyder","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-03-21T07:58:46Z","title":"PSR J1930-1852: a pulsar in the widest known orbit around another neutron star"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.06276","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:e63217c0a790d5b3959261fe3196a653207c911040d94c372c2f9561b11f3e95","target":"record","created_at":"2026-05-18T01:59:36Z","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":"0ed0cad576517ea74509dc1e2c2da11622abd713f1db62697170326be42bfd61","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-03-21T07:58:46Z","title_canon_sha256":"0d9db5f495f8f9137b9924e6a3ff685c208be5678ec60b437713cb37ff2bc0dd"},"schema_version":"1.0","source":{"id":"1503.06276","kind":"arxiv","version":1}},"canonical_sha256":"fb6a549982a634ee7ae76f56b177be6ef71fe366b6ce2a38fb48c725f92fbe2f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb6a549982a634ee7ae76f56b177be6ef71fe366b6ce2a38fb48c725f92fbe2f","first_computed_at":"2026-05-18T01:59:36.999391Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:36.999391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4LL9QeDue84DfE/PWVgzOCsKPLpIjk5d3swHoe6EXfOT9Zgf3ljL95if6mxLz0DtLi1ifhMnxgLp2sUVlKnjAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:37.000099Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.06276","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e63217c0a790d5b3959261fe3196a653207c911040d94c372c2f9561b11f3e95","sha256:321267894352d267b3bbf21fd2eb1d461d4249f5ccf577948dc821ba7df23be6"],"state_sha256":"0c5c79915dfeaba71f17f12c7a96ae98ac314a621f3f8ba98d0fb2bcf28fe10d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kpquks9RaR7SNElicYtDTaJ0toMdw3hrU9h8KYz299fodUUVc9pw7ngKOa4Ds7nQxHcU2gCYg2hG6ncn3NaLAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:08:26.100613Z","bundle_sha256":"eb66fed7c372ea11972da376943e217cccd932aa920d96abc5a2737b79371438"}}