{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GZ5WQI7DXQCUPMXNHRQ6NGLEIE","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":"2dd75c61c68d74ca7d9a701bebe1321e17ca0cd09b512caf56a99a1668dbc970","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-25T21:02:27Z","title_canon_sha256":"5d18a286e51869acac20431413fc842f6e0609c03d99f40e2f2037daab75f824"},"schema_version":"1.0","source":{"id":"1108.5201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.5201","created_at":"2026-05-18T04:14:38Z"},{"alias_kind":"arxiv_version","alias_value":"1108.5201v1","created_at":"2026-05-18T04:14:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.5201","created_at":"2026-05-18T04:14:38Z"},{"alias_kind":"pith_short_12","alias_value":"GZ5WQI7DXQCU","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"GZ5WQI7DXQCUPMXN","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"GZ5WQI7D","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:6d90147b0e1f4e3fbc7e0803bdbbcb113775a791d52dcbcdddd91593095a178b","target":"graph","created_at":"2026-05-18T04:14:38Z","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":"Millisecond pulsars are thought to be neutron stars that have been spun-up by accretion of matter from a binary companion. Although most are in binary systems, some 30% are solitary, and their origin is therefore mysterious. PSR J1719-1438, a 5.7 ms pulsar, was detected in a recent survey with the Parkes 64m radio telescope. We show that it is in a binary system with an orbital period of 2.2 h. Its companion's mass is near that of Jupiter, but its minimum density of 23 g cm$^{-3}$ suggests that it may be an ultra-low mass carbon white dwarf. This system may thus have once been an Ultra Compact","authors_text":"A. G. Lyne, A. Possenti, B. Stappers, L. Levin, L. Spitler, M. Bailes, M. Burgay, M. J. Keith, M. Kramer, N. d'Amico, N. D. R. Bhat, S. Burke-Spolaor, S. D. Bates, S. Johnsto, S. Milia, S. R. Kulkarni, V. Bhalerao, W. van Straten","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-25T21:02:27Z","title":"Transformation of a Star into a Planet in a Millisecond Pulsar Binary"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.5201","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":"sha256:157712929b5e1f34d977285aa6786ce39e7cf4917c815cf8df542b225cccb3d1","target":"record","created_at":"2026-05-18T04:14:38Z","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":"2dd75c61c68d74ca7d9a701bebe1321e17ca0cd09b512caf56a99a1668dbc970","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-25T21:02:27Z","title_canon_sha256":"5d18a286e51869acac20431413fc842f6e0609c03d99f40e2f2037daab75f824"},"schema_version":"1.0","source":{"id":"1108.5201","kind":"arxiv","version":1}},"canonical_sha256":"367b6823e3bc0547b2ed3c61e6996441097cbe44d29ed109ea52815bd44e5dc7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"367b6823e3bc0547b2ed3c61e6996441097cbe44d29ed109ea52815bd44e5dc7","first_computed_at":"2026-05-18T04:14:38.747273Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:14:38.747273Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tx75q0Fods07mac/NXrU8mKk0gmfsufRhx0dBAROvy5nmUYmxDKy4FQZCbhbsd5YMeuWUUUV3VkVaYpi48kHAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:14:38.747671Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.5201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:157712929b5e1f34d977285aa6786ce39e7cf4917c815cf8df542b225cccb3d1","sha256:6d90147b0e1f4e3fbc7e0803bdbbcb113775a791d52dcbcdddd91593095a178b"],"state_sha256":"501a153ec92ce82397dfb44f9d2ad90b0119e68d2406c147f58491c51b94e683"}