{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:22H6YG6M3QCMXPZV4DO7MA37PO","short_pith_number":"pith:22H6YG6M","canonical_record":{"source":{"id":"1509.05337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-09-17T17:09:45Z","cross_cats_sorted":[],"title_canon_sha256":"081255560af61083befb6afc2ca62619fe4586f7e8532be5621e295b8ddaa899","abstract_canon_sha256":"9c0701bec441572c4addb8e4eebe76de9ae6195772ee60a6f5cafaeaa610dff4"},"schema_version":"1.0"},"canonical_sha256":"d68fec1bccdc04cbbf35e0ddf6037f7b8fb60b0f1619bd5628d50d56c52780e3","source":{"kind":"arxiv","id":"1509.05337","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.05337","created_at":"2026-05-18T01:30:17Z"},{"alias_kind":"arxiv_version","alias_value":"1509.05337v1","created_at":"2026-05-18T01:30:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.05337","created_at":"2026-05-18T01:30:17Z"},{"alias_kind":"pith_short_12","alias_value":"22H6YG6M3QCM","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"22H6YG6M3QCMXPZV","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"22H6YG6M","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:22H6YG6M3QCMXPZV4DO7MA37PO","target":"record","payload":{"canonical_record":{"source":{"id":"1509.05337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-09-17T17:09:45Z","cross_cats_sorted":[],"title_canon_sha256":"081255560af61083befb6afc2ca62619fe4586f7e8532be5621e295b8ddaa899","abstract_canon_sha256":"9c0701bec441572c4addb8e4eebe76de9ae6195772ee60a6f5cafaeaa610dff4"},"schema_version":"1.0"},"canonical_sha256":"d68fec1bccdc04cbbf35e0ddf6037f7b8fb60b0f1619bd5628d50d56c52780e3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:17.645846Z","signature_b64":"xV3ae7kAXY5JrRWBBYvtOfqv3S6gsF2xUY91jtzADtmzOmPxqK1zKi/u/FRcAHTMPepJXaHJ6dMKY05Xp4AZDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d68fec1bccdc04cbbf35e0ddf6037f7b8fb60b0f1619bd5628d50d56c52780e3","last_reissued_at":"2026-05-18T01:30:17.645073Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:17.645073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.05337","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":"2026-05-18T01:30:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O8BZFmSLwZKr8EDwzOKoth+M/SZAhNPyQcQUThNUzvPwy7/tgxZ6HlkcpCAFnzhdT6b+plReo/0/s1nWugbwCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:45:18.839279Z"},"content_sha256":"81a37520288a5002c02b8116e3941ea77fe0d8ade0ac7c98ec3f2c9736af4064","schema_version":"1.0","event_id":"sha256:81a37520288a5002c02b8116e3941ea77fe0d8ade0ac7c98ec3f2c9736af4064"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:22H6YG6M3QCMXPZV4DO7MA37PO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A low stellar obliquity for WASP-47, a compact multiplanet system with a hot Jupiter and an ultra-short period planet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Andrew W. Howard, Erik Petigura, Evan Sinukoff, Fei Dai, Geoffrey W. Marcy, Howard Isaacson, Joshua N. Winn, Lauren Weiss, Leslie Rogers, Roberto Sanchis-Ojeda, Simon Albrecht, Teruyuki Hirano","submitted_at":"2015-09-17T17:09:45Z","abstract_excerpt":"We have detected the Rossiter-Mclaughlin effect during a transit of WASP-47b, the only known hot Jupiter with close planetary companions. By combining our spectroscopic observations with Kepler photometry, we show that the projected stellar obliquity is $\\lambda = 0^\\circ \\pm 24^\\circ$. We can firmly exclude a retrograde orbit for WASP-47b, and rule out strongly misaligned prograde orbits. Low obliquities have also been found for most of the other compact multiplanet systems that have been investigated. The Kepler-56 system, with two close-in gas giants transiting their subgiant host star with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.05337","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":"2026-05-18T01:30:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N5twVgJJln6YO0ldSf/H6u9AzMN+yt+wRFwqjXgPnovzrWSf+ypsKmPzQLjdGrjV/h1X2lmVbl679DYml10CBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:45:18.839909Z"},"content_sha256":"0e8cd635cc381f147e81d109c77dfadcbccfe0c516dea2c0bcd233cde5ea805d","schema_version":"1.0","event_id":"sha256:0e8cd635cc381f147e81d109c77dfadcbccfe0c516dea2c0bcd233cde5ea805d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/22H6YG6M3QCMXPZV4DO7MA37PO/bundle.json","state_url":"https://pith.science/pith/22H6YG6M3QCMXPZV4DO7MA37PO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/22H6YG6M3QCMXPZV4DO7MA37PO/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":"2026-05-28T08:45:18Z","links":{"resolver":"https://pith.science/pith/22H6YG6M3QCMXPZV4DO7MA37PO","bundle":"https://pith.science/pith/22H6YG6M3QCMXPZV4DO7MA37PO/bundle.json","state":"https://pith.science/pith/22H6YG6M3QCMXPZV4DO7MA37PO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/22H6YG6M3QCMXPZV4DO7MA37PO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:22H6YG6M3QCMXPZV4DO7MA37PO","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":"9c0701bec441572c4addb8e4eebe76de9ae6195772ee60a6f5cafaeaa610dff4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-09-17T17:09:45Z","title_canon_sha256":"081255560af61083befb6afc2ca62619fe4586f7e8532be5621e295b8ddaa899"},"schema_version":"1.0","source":{"id":"1509.05337","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.05337","created_at":"2026-05-18T01:30:17Z"},{"alias_kind":"arxiv_version","alias_value":"1509.05337v1","created_at":"2026-05-18T01:30:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.05337","created_at":"2026-05-18T01:30:17Z"},{"alias_kind":"pith_short_12","alias_value":"22H6YG6M3QCM","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"22H6YG6M3QCMXPZV","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"22H6YG6M","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:0e8cd635cc381f147e81d109c77dfadcbccfe0c516dea2c0bcd233cde5ea805d","target":"graph","created_at":"2026-05-18T01:30:17Z","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 have detected the Rossiter-Mclaughlin effect during a transit of WASP-47b, the only known hot Jupiter with close planetary companions. By combining our spectroscopic observations with Kepler photometry, we show that the projected stellar obliquity is $\\lambda = 0^\\circ \\pm 24^\\circ$. We can firmly exclude a retrograde orbit for WASP-47b, and rule out strongly misaligned prograde orbits. Low obliquities have also been found for most of the other compact multiplanet systems that have been investigated. The Kepler-56 system, with two close-in gas giants transiting their subgiant host star with","authors_text":"Andrew W. Howard, Erik Petigura, Evan Sinukoff, Fei Dai, Geoffrey W. Marcy, Howard Isaacson, Joshua N. Winn, Lauren Weiss, Leslie Rogers, Roberto Sanchis-Ojeda, Simon Albrecht, Teruyuki Hirano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-09-17T17:09:45Z","title":"A low stellar obliquity for WASP-47, a compact multiplanet system with a hot Jupiter and an ultra-short period planet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.05337","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":"sha256:81a37520288a5002c02b8116e3941ea77fe0d8ade0ac7c98ec3f2c9736af4064","target":"record","created_at":"2026-05-18T01:30:17Z","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":"9c0701bec441572c4addb8e4eebe76de9ae6195772ee60a6f5cafaeaa610dff4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-09-17T17:09:45Z","title_canon_sha256":"081255560af61083befb6afc2ca62619fe4586f7e8532be5621e295b8ddaa899"},"schema_version":"1.0","source":{"id":"1509.05337","kind":"arxiv","version":1}},"canonical_sha256":"d68fec1bccdc04cbbf35e0ddf6037f7b8fb60b0f1619bd5628d50d56c52780e3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d68fec1bccdc04cbbf35e0ddf6037f7b8fb60b0f1619bd5628d50d56c52780e3","first_computed_at":"2026-05-18T01:30:17.645073Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:17.645073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xV3ae7kAXY5JrRWBBYvtOfqv3S6gsF2xUY91jtzADtmzOmPxqK1zKi/u/FRcAHTMPepJXaHJ6dMKY05Xp4AZDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:17.645846Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.05337","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81a37520288a5002c02b8116e3941ea77fe0d8ade0ac7c98ec3f2c9736af4064","sha256:0e8cd635cc381f147e81d109c77dfadcbccfe0c516dea2c0bcd233cde5ea805d"],"state_sha256":"7ea02e3f71652b07a39b24004047efc99f87c3b26498c2868d6963d4ed01d57a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ebn43Z7wA3dc8mHBRR6rXUAclIRMkmyOHNdsW0Z530CXjtqe2ZXeG8ymIvDWFfrf4QIGRzKAMojoyGsw2dLZCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:45:18.843167Z","bundle_sha256":"68a7414085a6a67378fa2928f79a812d2b88f6c31262088cd2db84b8f040a89d"}}