{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:SF4XJJQRVJN72BMG62YQ33642W","short_pith_number":"pith:SF4XJJQR","canonical_record":{"source":{"id":"1003.4512","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-23T20:00:05Z","cross_cats_sorted":[],"title_canon_sha256":"082b8a1b1f1bbfc726dfe9222336ecc455bdcdc94c6b1219187ca667f8b4df26","abstract_canon_sha256":"b6d0e2063a3c228e73c4a5a970cfc3a00279ab605e23f3fcf7df5d48ebbf3def"},"schema_version":"1.0"},"canonical_sha256":"917974a611aa5bfd0586f6b10defdcd59444a9d22a2e78fc9832171fe2204543","source":{"kind":"arxiv","id":"1003.4512","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4512","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4512v2","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4512","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"SF4XJJQRVJN7","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SF4XJJQRVJN72BMG","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SF4XJJQR","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:SF4XJJQRVJN72BMG62YQ33642W","target":"record","payload":{"canonical_record":{"source":{"id":"1003.4512","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-23T20:00:05Z","cross_cats_sorted":[],"title_canon_sha256":"082b8a1b1f1bbfc726dfe9222336ecc455bdcdc94c6b1219187ca667f8b4df26","abstract_canon_sha256":"b6d0e2063a3c228e73c4a5a970cfc3a00279ab605e23f3fcf7df5d48ebbf3def"},"schema_version":"1.0"},"canonical_sha256":"917974a611aa5bfd0586f6b10defdcd59444a9d22a2e78fc9832171fe2204543","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:23.907972Z","signature_b64":"y1i/BOCDV1lrG0HucmnreP/bVefUAMpBiy8XYGQNg4JVzYfaITPJYiCe8vETHMPUbjLay6u9oUdnY2i9h7rQBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"917974a611aa5bfd0586f6b10defdcd59444a9d22a2e78fc9832171fe2204543","last_reissued_at":"2026-05-18T02:08:23.907309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:23.907309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.4512","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:08:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RoOudVhdC6AvudOGCPvN6w4ipU+JQ90WBaXDvjW10Uwo2tZ/YYG/+KB1V6d+k1yRlBsimsjH99E2PzDCtp7cAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T06:45:40.758505Z"},"content_sha256":"bc81453d18b9205dd124f8e129857c594ad37454b1fa4eedd2b61ff2e590b2ee","schema_version":"1.0","event_id":"sha256:bc81453d18b9205dd124f8e129857c594ad37454b1fa4eedd2b61ff2e590b2ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:SF4XJJQRVJN72BMG62YQ33642W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The HAT-P-13 Exoplanetary System: Evidence for Spin-Orbit Alignment and a Third Companion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Gaspar A. Bakos, Geoffrey W. Marcy, Guillermo Torres, Joel Hartman, John Asher Johnson, Joshua N. Winn, Norio Narita, Simon Albrecht","submitted_at":"2010-03-23T20:00:05Z","abstract_excerpt":"We present new radial-velocity measurements of HAT-P-13, a star with two previously known companions: a transiting giant planet \"b\" with an orbital period of 3 days, and a more massive object \"c\" on a 1.2 yr, highly eccentric orbit. For this system, dynamical considerations would lead to constraints on planet b's interior structure, if it could be shown that the orbits are coplanar and apsidally locked. By modeling the Rossiter-McLaughlin effect, we show that planet b's orbital angular momentum vector and the stellar spin vector are well-aligned on the sky (lambda = -0.9 +/- 8.5 deg), suggesti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4512","kind":"arxiv","version":2},"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":"2026-05-18T02:08:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Keg2hla2YBcg2XiQspKEvZR7K/R+MXngFOWTTggmnjr1R4m4yM3rqVor522ZorbeWXE8qiopzikzGLMo6kiSAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T06:45:40.759253Z"},"content_sha256":"d9751ed8f152b5626cc672fc51fa319e4be637959ef05c8a9bc7282c3c82c232","schema_version":"1.0","event_id":"sha256:d9751ed8f152b5626cc672fc51fa319e4be637959ef05c8a9bc7282c3c82c232"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SF4XJJQRVJN72BMG62YQ33642W/bundle.json","state_url":"https://pith.science/pith/SF4XJJQRVJN72BMG62YQ33642W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SF4XJJQRVJN72BMG62YQ33642W/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":"2026-06-09T06:45:40Z","links":{"resolver":"https://pith.science/pith/SF4XJJQRVJN72BMG62YQ33642W","bundle":"https://pith.science/pith/SF4XJJQRVJN72BMG62YQ33642W/bundle.json","state":"https://pith.science/pith/SF4XJJQRVJN72BMG62YQ33642W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SF4XJJQRVJN72BMG62YQ33642W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:SF4XJJQRVJN72BMG62YQ33642W","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":"b6d0e2063a3c228e73c4a5a970cfc3a00279ab605e23f3fcf7df5d48ebbf3def","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-23T20:00:05Z","title_canon_sha256":"082b8a1b1f1bbfc726dfe9222336ecc455bdcdc94c6b1219187ca667f8b4df26"},"schema_version":"1.0","source":{"id":"1003.4512","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4512","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4512v2","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4512","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"SF4XJJQRVJN7","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SF4XJJQRVJN72BMG","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SF4XJJQR","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:d9751ed8f152b5626cc672fc51fa319e4be637959ef05c8a9bc7282c3c82c232","target":"graph","created_at":"2026-05-18T02:08:23Z","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 new radial-velocity measurements of HAT-P-13, a star with two previously known companions: a transiting giant planet \"b\" with an orbital period of 3 days, and a more massive object \"c\" on a 1.2 yr, highly eccentric orbit. For this system, dynamical considerations would lead to constraints on planet b's interior structure, if it could be shown that the orbits are coplanar and apsidally locked. By modeling the Rossiter-McLaughlin effect, we show that planet b's orbital angular momentum vector and the stellar spin vector are well-aligned on the sky (lambda = -0.9 +/- 8.5 deg), suggesti","authors_text":"Andrew W. Howard, Gaspar A. Bakos, Geoffrey W. Marcy, Guillermo Torres, Joel Hartman, John Asher Johnson, Joshua N. Winn, Norio Narita, Simon Albrecht","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-23T20:00:05Z","title":"The HAT-P-13 Exoplanetary System: Evidence for Spin-Orbit Alignment and a Third Companion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4512","kind":"arxiv","version":2},"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:bc81453d18b9205dd124f8e129857c594ad37454b1fa4eedd2b61ff2e590b2ee","target":"record","created_at":"2026-05-18T02:08:23Z","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":"b6d0e2063a3c228e73c4a5a970cfc3a00279ab605e23f3fcf7df5d48ebbf3def","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-23T20:00:05Z","title_canon_sha256":"082b8a1b1f1bbfc726dfe9222336ecc455bdcdc94c6b1219187ca667f8b4df26"},"schema_version":"1.0","source":{"id":"1003.4512","kind":"arxiv","version":2}},"canonical_sha256":"917974a611aa5bfd0586f6b10defdcd59444a9d22a2e78fc9832171fe2204543","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"917974a611aa5bfd0586f6b10defdcd59444a9d22a2e78fc9832171fe2204543","first_computed_at":"2026-05-18T02:08:23.907309Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:23.907309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y1i/BOCDV1lrG0HucmnreP/bVefUAMpBiy8XYGQNg4JVzYfaITPJYiCe8vETHMPUbjLay6u9oUdnY2i9h7rQBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:23.907972Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.4512","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc81453d18b9205dd124f8e129857c594ad37454b1fa4eedd2b61ff2e590b2ee","sha256:d9751ed8f152b5626cc672fc51fa319e4be637959ef05c8a9bc7282c3c82c232"],"state_sha256":"a45e14ae307f6a161f8897c0295b620d228f2d863548124926a3ae24d260135b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NjZJqUscUUgK2DknMAV43Dt7jiDy99TG7CC0RZOmIo7fBtofJ3xot+Is3j8PRQSWHmoNzUrmZKolNixWCkUUBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T06:45:40.763505Z","bundle_sha256":"f3d28e82559ba03c9310b7a6b5d2dd57967c3e9e752354241a670ec168f0fa1e"}}