{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:E5LMCHVDB7XDWEWNHHVFZY5PHQ","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":"6cff1b4592c6da1a2bda7ec2dc3e51ec591581a955a9e68faca6a75ed376642c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-25T00:31:48Z","title_canon_sha256":"bd9760918259b1b6020b942d41866483f9634451fc95af06c37915d016e235ed"},"schema_version":"1.0","source":{"id":"1301.5936","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5936","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5936v1","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5936","created_at":"2026-05-18T03:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"E5LMCHVDB7XD","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"E5LMCHVDB7XDWEWN","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"E5LMCHVD","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:7d5d8ec38cb09dcbe63e99506ae2df5febd104b1d84717c2695a8dd61926466e","target":"graph","created_at":"2026-05-18T03:29:29Z","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":"We present time-resolved spectroscopic and polarimetric observations of the AM Her system EU Cnc. EU Cnc is located near the core of the old open cluster Messier 67; new proper motion measurements indicate that EU Cnc is indeed a member of the star cluster, this system therefore is useful to constrain the formation and evolution of magnetic cataclysmic variables. The spectra exhibit two-component emission features with independent radial velocity variations as well as time-variable cyclotron emission indicating a magnetic field strength of 41 MG. The period of the radial velocity and cyclotron","authors_text":"(2) NASA Ames, (3) Steward Obs., (4) STSCI, (5) MPIA, (6) UCO/Lick), Andrea Bellini (4), James Liebert, Kate H.R. Rubin (5), Kurtis A. Williams (1), Michael Bolte (6) ((1) Texas A&M University-Commerce, Paul S. Smith (3), Steve B. Howell (2)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-25T00:31:48Z","title":"Time-resolved Spectroscopy of the Polar EU Cancri in the Open Cluster Messier 67"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5936","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:c9f9bd4ba371c00c91b67a9f56e8a9743fcda7cd2db7e6b8a048bf99d2caff79","target":"record","created_at":"2026-05-18T03:29:29Z","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":"6cff1b4592c6da1a2bda7ec2dc3e51ec591581a955a9e68faca6a75ed376642c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-25T00:31:48Z","title_canon_sha256":"bd9760918259b1b6020b942d41866483f9634451fc95af06c37915d016e235ed"},"schema_version":"1.0","source":{"id":"1301.5936","kind":"arxiv","version":1}},"canonical_sha256":"2756c11ea30fee3b12cd39ea5ce3af3c351f514cbe12497858744dff94482b50","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2756c11ea30fee3b12cd39ea5ce3af3c351f514cbe12497858744dff94482b50","first_computed_at":"2026-05-18T03:29:29.295758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:29.295758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gbQi1AQnJFWXQwElXemVOBfn/DERVqdR8OmKh2ZgnvUrvRyNvTNrVI/y4I4FkGXLWBsjFaiBSlC8IZH5AtNdAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:29.296471Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5936","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9f9bd4ba371c00c91b67a9f56e8a9743fcda7cd2db7e6b8a048bf99d2caff79","sha256:7d5d8ec38cb09dcbe63e99506ae2df5febd104b1d84717c2695a8dd61926466e"],"state_sha256":"83557e83fd6e6737e7920a24665bf4911fd5a3deac98291acf0a728a2e7b52ff"}