{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:Z4HZIAS3OEZU3BOSDQJPYG2X7C","short_pith_number":"pith:Z4HZIAS3","canonical_record":{"source":{"id":"1201.1043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T00:41:25Z","cross_cats_sorted":[],"title_canon_sha256":"34b43227cca93648ef7f97dbf21c8fe17f889a39022fb15becfa5cb28a679fb0","abstract_canon_sha256":"41750ba2738e906ae031ae287f46c3279fc65f29bb946528e92374bec2eb3747"},"schema_version":"1.0"},"canonical_sha256":"cf0f94025b71334d85d21c12fc1b57f8b702cb96317e68a9540ef42e2189a6ec","source":{"kind":"arxiv","id":"1201.1043","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1043","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1043v1","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1043","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"pith_short_12","alias_value":"Z4HZIAS3OEZU","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z4HZIAS3OEZU3BOS","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z4HZIAS3","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:Z4HZIAS3OEZU3BOSDQJPYG2X7C","target":"record","payload":{"canonical_record":{"source":{"id":"1201.1043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T00:41:25Z","cross_cats_sorted":[],"title_canon_sha256":"34b43227cca93648ef7f97dbf21c8fe17f889a39022fb15becfa5cb28a679fb0","abstract_canon_sha256":"41750ba2738e906ae031ae287f46c3279fc65f29bb946528e92374bec2eb3747"},"schema_version":"1.0"},"canonical_sha256":"cf0f94025b71334d85d21c12fc1b57f8b702cb96317e68a9540ef42e2189a6ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:57.442940Z","signature_b64":"FB6qNZmukasO6TpCEJ94V0vmx4pbr6FlPHezaLq+ok7GEIy9nh5DsgiPLJ/W7iSKChWnGGaqZV7zybKik2amCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf0f94025b71334d85d21c12fc1b57f8b702cb96317e68a9540ef42e2189a6ec","last_reissued_at":"2026-05-18T01:58:57.442309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:57.442309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.1043","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":"2026-05-18T01:58:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5zLSDP/gjvmpG/FZZ+T0x7RgBRzz0C6HMsxOwCF9NUCmcdVOiPVdcY97E0OXgTyvCUY0F1eakQZ6jSXAbwXuCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:26:44.731839Z"},"content_sha256":"5da2db43aa7e7c7fd79aef0b866892b36307702730036616c0fed0a34ff24536","schema_version":"1.0","event_id":"sha256:5da2db43aa7e7c7fd79aef0b866892b36307702730036616c0fed0a34ff24536"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:Z4HZIAS3OEZU3BOSDQJPYG2X7C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Eccentric Ellipsoidal Red Giant Binaries in the LMC: Complete Orbital Solutions and Comments on Interaction at Periastron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. P. Nicholls, P. R. Wood","submitted_at":"2012-01-05T00:41:25Z","abstract_excerpt":"Modelling ellipsoidal variables with known distances can lead to exact determination of the masses of both components, even in the absence of eclipses. We present such modelling using light and radial velocity curves of ellipsoidal red giant binaries in the LMC, where they are also known as sequence E stars. Stars were selected as likely eccentric systems on the basis of light curve shape alone. We have confirmed their eccentric nature and obtained system parameters using the Wilson-Devinney code. Most stars in our sample exhibit unequal light maxima as well as minima, a phenomenon not observe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1043","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":"2026-05-18T01:58:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"drAcH/+zRbFZVQTsV4pDP3PCIImgf9hGVp5GtlTWaQzypcdaenFQivbwtyWM82vYqn5yiEKsGhJaxm3u5z1mCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T12:26:44.732525Z"},"content_sha256":"baa531baa4388eb966bdec3552bd79c390a9644be7e04a4aafc8cfcdea644ea9","schema_version":"1.0","event_id":"sha256:baa531baa4388eb966bdec3552bd79c390a9644be7e04a4aafc8cfcdea644ea9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C/bundle.json","state_url":"https://pith.science/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C/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":"2026-05-26T12:26:44Z","links":{"resolver":"https://pith.science/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C","bundle":"https://pith.science/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C/bundle.json","state":"https://pith.science/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z4HZIAS3OEZU3BOSDQJPYG2X7C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:Z4HZIAS3OEZU3BOSDQJPYG2X7C","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":"41750ba2738e906ae031ae287f46c3279fc65f29bb946528e92374bec2eb3747","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T00:41:25Z","title_canon_sha256":"34b43227cca93648ef7f97dbf21c8fe17f889a39022fb15becfa5cb28a679fb0"},"schema_version":"1.0","source":{"id":"1201.1043","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1043","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1043v1","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1043","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"pith_short_12","alias_value":"Z4HZIAS3OEZU","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z4HZIAS3OEZU3BOS","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z4HZIAS3","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:baa531baa4388eb966bdec3552bd79c390a9644be7e04a4aafc8cfcdea644ea9","target":"graph","created_at":"2026-05-18T01:58:57Z","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":"Modelling ellipsoidal variables with known distances can lead to exact determination of the masses of both components, even in the absence of eclipses. We present such modelling using light and radial velocity curves of ellipsoidal red giant binaries in the LMC, where they are also known as sequence E stars. Stars were selected as likely eccentric systems on the basis of light curve shape alone. We have confirmed their eccentric nature and obtained system parameters using the Wilson-Devinney code. Most stars in our sample exhibit unequal light maxima as well as minima, a phenomenon not observe","authors_text":"C. P. Nicholls, P. R. Wood","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T00:41:25Z","title":"Eccentric Ellipsoidal Red Giant Binaries in the LMC: Complete Orbital Solutions and Comments on Interaction at Periastron"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1043","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":"sha256:5da2db43aa7e7c7fd79aef0b866892b36307702730036616c0fed0a34ff24536","target":"record","created_at":"2026-05-18T01:58:57Z","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":"41750ba2738e906ae031ae287f46c3279fc65f29bb946528e92374bec2eb3747","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-05T00:41:25Z","title_canon_sha256":"34b43227cca93648ef7f97dbf21c8fe17f889a39022fb15becfa5cb28a679fb0"},"schema_version":"1.0","source":{"id":"1201.1043","kind":"arxiv","version":1}},"canonical_sha256":"cf0f94025b71334d85d21c12fc1b57f8b702cb96317e68a9540ef42e2189a6ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf0f94025b71334d85d21c12fc1b57f8b702cb96317e68a9540ef42e2189a6ec","first_computed_at":"2026-05-18T01:58:57.442309Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:57.442309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FB6qNZmukasO6TpCEJ94V0vmx4pbr6FlPHezaLq+ok7GEIy9nh5DsgiPLJ/W7iSKChWnGGaqZV7zybKik2amCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:57.442940Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1043","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5da2db43aa7e7c7fd79aef0b866892b36307702730036616c0fed0a34ff24536","sha256:baa531baa4388eb966bdec3552bd79c390a9644be7e04a4aafc8cfcdea644ea9"],"state_sha256":"5d15661c710243582e7f2ee936d7b3f51e0b1789090b0b04854ff527b4e7f14e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1jI6IFSO/xw1L1YKDFkkkpu4iHtInMWgFOnHUrfuJns3oMGKdzReZDNobZovuTsexg72agwVYhO0cxpuB4KGCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T12:26:44.736250Z","bundle_sha256":"1523eaa7c8264b98b953c09c6955ebf98669350b41268c4dbba7dfe98f81310a"}}