{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ECKXJZIC33OYUDRBEF5YQPIQQS","short_pith_number":"pith:ECKXJZIC","canonical_record":{"source":{"id":"1201.4205","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-20T04:50:42Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"5531c00f016648a25f7a84fdaace4ab684f04843cc98d0d6139cd5293e4ee63a","abstract_canon_sha256":"d1721eb7e6062f29dd342ea3ccee41e01170927de84fe18191aad0879720dcc3"},"schema_version":"1.0"},"canonical_sha256":"209574e502dedd8a0e21217b883d108486c763ab703b1cc02217556b73484119","source":{"kind":"arxiv","id":"1201.4205","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4205","created_at":"2026-05-18T01:58:46Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4205v1","created_at":"2026-05-18T01:58:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4205","created_at":"2026-05-18T01:58:46Z"},{"alias_kind":"pith_short_12","alias_value":"ECKXJZIC33OY","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"ECKXJZIC33OYUDRB","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"ECKXJZIC","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ECKXJZIC33OYUDRBEF5YQPIQQS","target":"record","payload":{"canonical_record":{"source":{"id":"1201.4205","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-20T04:50:42Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"5531c00f016648a25f7a84fdaace4ab684f04843cc98d0d6139cd5293e4ee63a","abstract_canon_sha256":"d1721eb7e6062f29dd342ea3ccee41e01170927de84fe18191aad0879720dcc3"},"schema_version":"1.0"},"canonical_sha256":"209574e502dedd8a0e21217b883d108486c763ab703b1cc02217556b73484119","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:46.432111Z","signature_b64":"jPhalJrlxfpnAZ+msN1JiEJOwAlXdfWIt+PX3uSjWjKwqI901XneHymxorXPYiL19rR0hPY6lv4vKVEN+zlHBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"209574e502dedd8a0e21217b883d108486c763ab703b1cc02217556b73484119","last_reissued_at":"2026-05-18T01:58:46.431433Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:46.431433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.4205","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":"2026-05-18T01:58:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JR3d0N1My2mLaQ6QjHcjDxS+pQSzQ04oTUwu9p5iTkoa6+FeAVOsbElek7nRztdJ/muZ0ZH9NPFZBMZjuKbYAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T17:32:10.956651Z"},"content_sha256":"46ee38d99a61d2e597cd010e8897417155d5e08c6a42b01a37bdfdbb77dc246e","schema_version":"1.0","event_id":"sha256:46ee38d99a61d2e597cd010e8897417155d5e08c6a42b01a37bdfdbb77dc246e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ECKXJZIC33OYUDRBEF5YQPIQQS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Circumbinary Planet in Orbit Around the Short-Period White-Dwarf Eclipsing Binary RR Cae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"E. Fernandez Lajus, G.L. Baume, L. Liu, L.-Y. Zhu, S.-B. Qian, Z.-B. Dai","submitted_at":"2012-01-20T04:50:42Z","abstract_excerpt":"By using six new determined mid-eclipse times together with those collected from the literature, we found that the Observed-Calculated (O-C) curve of RR Cae shows a cyclic change with a period of 11.9 years and an amplitude of 14.3s, while it undergoes an upward parabolic variation (revealing a long-term period increase at a rate of dP/dt =+4.18(+-0.20)x10^(-12). The cyclic change was analyzed for the light-travel time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M_3*sin i' = 4.2(+-0.4) M_{Jup} suggesting that it is a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4205","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":"2026-05-18T01:58:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QXQ+KJm4+iF5OC+bdoS4Zwsr2i4OnJ2++SQDM0bbHiJSVfJiZlzk7+BfsPCJYsK3ZTiiTrQlUhlr78nk+5DDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T17:32:10.957000Z"},"content_sha256":"3b31625c7b7be9d3d8fe10b4b5af78f0958959ed25a1d570ef1c2ba847991615","schema_version":"1.0","event_id":"sha256:3b31625c7b7be9d3d8fe10b4b5af78f0958959ed25a1d570ef1c2ba847991615"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ECKXJZIC33OYUDRBEF5YQPIQQS/bundle.json","state_url":"https://pith.science/pith/ECKXJZIC33OYUDRBEF5YQPIQQS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ECKXJZIC33OYUDRBEF5YQPIQQS/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":"2026-06-25T17:32:10Z","links":{"resolver":"https://pith.science/pith/ECKXJZIC33OYUDRBEF5YQPIQQS","bundle":"https://pith.science/pith/ECKXJZIC33OYUDRBEF5YQPIQQS/bundle.json","state":"https://pith.science/pith/ECKXJZIC33OYUDRBEF5YQPIQQS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ECKXJZIC33OYUDRBEF5YQPIQQS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ECKXJZIC33OYUDRBEF5YQPIQQS","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":"d1721eb7e6062f29dd342ea3ccee41e01170927de84fe18191aad0879720dcc3","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-20T04:50:42Z","title_canon_sha256":"5531c00f016648a25f7a84fdaace4ab684f04843cc98d0d6139cd5293e4ee63a"},"schema_version":"1.0","source":{"id":"1201.4205","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4205","created_at":"2026-05-18T01:58:46Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4205v1","created_at":"2026-05-18T01:58:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4205","created_at":"2026-05-18T01:58:46Z"},{"alias_kind":"pith_short_12","alias_value":"ECKXJZIC33OY","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"ECKXJZIC33OYUDRB","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"ECKXJZIC","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:3b31625c7b7be9d3d8fe10b4b5af78f0958959ed25a1d570ef1c2ba847991615","target":"graph","created_at":"2026-05-18T01:58:46Z","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":"By using six new determined mid-eclipse times together with those collected from the literature, we found that the Observed-Calculated (O-C) curve of RR Cae shows a cyclic change with a period of 11.9 years and an amplitude of 14.3s, while it undergoes an upward parabolic variation (revealing a long-term period increase at a rate of dP/dt =+4.18(+-0.20)x10^(-12). The cyclic change was analyzed for the light-travel time effect that arises from the gravitational influence of a third companion. The mass of the third body was determined to be M_3*sin i' = 4.2(+-0.4) M_{Jup} suggesting that it is a","authors_text":"E. Fernandez Lajus, G.L. Baume, L. Liu, L.-Y. Zhu, S.-B. Qian, Z.-B. Dai","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-20T04:50:42Z","title":"A Circumbinary Planet in Orbit Around the Short-Period White-Dwarf Eclipsing Binary RR Cae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4205","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":"sha256:46ee38d99a61d2e597cd010e8897417155d5e08c6a42b01a37bdfdbb77dc246e","target":"record","created_at":"2026-05-18T01:58:46Z","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":"d1721eb7e6062f29dd342ea3ccee41e01170927de84fe18191aad0879720dcc3","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-20T04:50:42Z","title_canon_sha256":"5531c00f016648a25f7a84fdaace4ab684f04843cc98d0d6139cd5293e4ee63a"},"schema_version":"1.0","source":{"id":"1201.4205","kind":"arxiv","version":1}},"canonical_sha256":"209574e502dedd8a0e21217b883d108486c763ab703b1cc02217556b73484119","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"209574e502dedd8a0e21217b883d108486c763ab703b1cc02217556b73484119","first_computed_at":"2026-05-18T01:58:46.431433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:46.431433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jPhalJrlxfpnAZ+msN1JiEJOwAlXdfWIt+PX3uSjWjKwqI901XneHymxorXPYiL19rR0hPY6lv4vKVEN+zlHBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:46.432111Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.4205","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46ee38d99a61d2e597cd010e8897417155d5e08c6a42b01a37bdfdbb77dc246e","sha256:3b31625c7b7be9d3d8fe10b4b5af78f0958959ed25a1d570ef1c2ba847991615"],"state_sha256":"c3074a8a339ae7d0f9c24fd744539f5ad6485797ef7bd060334a1428c5393942"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uD1BK7/k4GlRbOsOlW6qurxSL0Bga6og0MrthIHaKco3uAY6HSaQVkVfCDoeb5gF5DtFrzvuysLsE3jIzdWOCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T17:32:10.958969Z","bundle_sha256":"f724feefde1d1aa3899d96fa021d1d6bb6ae2a2a00a6c614b4872362ea0036b7"}}