{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:52CFD4GEKSRI6T3ERIICAISX35","short_pith_number":"pith:52CFD4GE","canonical_record":{"source":{"id":"0811.1996","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-12T22:47:58Z","cross_cats_sorted":[],"title_canon_sha256":"53d4337aa2a69520cfb63a18096e7de94c3c7e2587e886dc95ff3fff554a1d85","abstract_canon_sha256":"ab1dd25d0ae08ef99a75cb95297882a4ddb543d02758e3cef4b019d1cd45ecc9"},"schema_version":"1.0"},"canonical_sha256":"ee8451f0c454a28f4f648a10202257df5577e70ed86735763deb10ae54ebcd3a","source":{"kind":"arxiv","id":"0811.1996","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1996","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1996v1","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1996","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"pith_short_12","alias_value":"52CFD4GEKSRI","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"52CFD4GEKSRI6T3E","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"52CFD4GE","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:52CFD4GEKSRI6T3ERIICAISX35","target":"record","payload":{"canonical_record":{"source":{"id":"0811.1996","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-12T22:47:58Z","cross_cats_sorted":[],"title_canon_sha256":"53d4337aa2a69520cfb63a18096e7de94c3c7e2587e886dc95ff3fff554a1d85","abstract_canon_sha256":"ab1dd25d0ae08ef99a75cb95297882a4ddb543d02758e3cef4b019d1cd45ecc9"},"schema_version":"1.0"},"canonical_sha256":"ee8451f0c454a28f4f648a10202257df5577e70ed86735763deb10ae54ebcd3a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:25.150400Z","signature_b64":"tHpVNicg9Spt+H8OCT1NRXmg/v88BJhHLn7vsXx6SFxAbS9L2UvWzrRYj1OG0qO+P4uQxBQIVSpBHTGQZ8tACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee8451f0c454a28f4f648a10202257df5577e70ed86735763deb10ae54ebcd3a","last_reissued_at":"2026-05-18T04:29:25.149810Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:25.149810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0811.1996","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":"2026-05-18T04:29:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"numbpygcKU6ThRF//SOt6KbU/Iqr3KzWrAuK9Vf5MO3fKuOL7csILQJBv26AqX5QRQghgBJVVhzh4+Uc5wcLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:20:30.678972Z"},"content_sha256":"b13fb6e8a8dee989eb095bc1d65601e0a268086aa31d8c8e8a0a29a463396842","schema_version":"1.0","event_id":"sha256:b13fb6e8a8dee989eb095bc1d65601e0a268086aa31d8c8e8a0a29a463396842"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:52CFD4GEKSRI6T3ERIICAISX35","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Empirical Constraints on Trojan Companions and Orbital Eccentricities in 25 Transiting Exoplanetary Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Joshua N. Winn, N. Madhusudhan","submitted_at":"2008-11-12T22:47:58Z","abstract_excerpt":"We present a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planet-star orbit. No companions were detected above 2\\sigma confidence. The median 2\\sigma upper limit is 56 M_\\earth, and the most constraining limit is 2.8 M_\\earth for the case of GJ 436. A similar survey using forthcoming data from t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1996","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":"2026-05-18T04:29:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MYbJ14/9IAJhsToyqUOk4AQgnGiiDam5tQPQhMAJoYqCDH0EWBn1KsC/KEge0qSJr23q41dIZ6jsJne/7JuCCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:20:30.679585Z"},"content_sha256":"9d0367c3a9f0999a456ccac9931412fd62d584580ea7749818d68dc5c56fc275","schema_version":"1.0","event_id":"sha256:9d0367c3a9f0999a456ccac9931412fd62d584580ea7749818d68dc5c56fc275"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/52CFD4GEKSRI6T3ERIICAISX35/bundle.json","state_url":"https://pith.science/pith/52CFD4GEKSRI6T3ERIICAISX35/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/52CFD4GEKSRI6T3ERIICAISX35/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":"2026-06-05T01:20:30Z","links":{"resolver":"https://pith.science/pith/52CFD4GEKSRI6T3ERIICAISX35","bundle":"https://pith.science/pith/52CFD4GEKSRI6T3ERIICAISX35/bundle.json","state":"https://pith.science/pith/52CFD4GEKSRI6T3ERIICAISX35/state.json","well_known_bundle":"https://pith.science/.well-known/pith/52CFD4GEKSRI6T3ERIICAISX35/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:52CFD4GEKSRI6T3ERIICAISX35","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":"ab1dd25d0ae08ef99a75cb95297882a4ddb543d02758e3cef4b019d1cd45ecc9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-12T22:47:58Z","title_canon_sha256":"53d4337aa2a69520cfb63a18096e7de94c3c7e2587e886dc95ff3fff554a1d85"},"schema_version":"1.0","source":{"id":"0811.1996","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.1996","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"arxiv_version","alias_value":"0811.1996v1","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.1996","created_at":"2026-05-18T04:29:25Z"},{"alias_kind":"pith_short_12","alias_value":"52CFD4GEKSRI","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"52CFD4GEKSRI6T3E","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"52CFD4GE","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:9d0367c3a9f0999a456ccac9931412fd62d584580ea7749818d68dc5c56fc275","target":"graph","created_at":"2026-05-18T04:29:25Z","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 a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planet-star orbit. No companions were detected above 2\\sigma confidence. The median 2\\sigma upper limit is 56 M_\\earth, and the most constraining limit is 2.8 M_\\earth for the case of GJ 436. A similar survey using forthcoming data from t","authors_text":"Joshua N. Winn, N. Madhusudhan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-12T22:47:58Z","title":"Empirical Constraints on Trojan Companions and Orbital Eccentricities in 25 Transiting Exoplanetary Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.1996","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:b13fb6e8a8dee989eb095bc1d65601e0a268086aa31d8c8e8a0a29a463396842","target":"record","created_at":"2026-05-18T04:29:25Z","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":"ab1dd25d0ae08ef99a75cb95297882a4ddb543d02758e3cef4b019d1cd45ecc9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-12T22:47:58Z","title_canon_sha256":"53d4337aa2a69520cfb63a18096e7de94c3c7e2587e886dc95ff3fff554a1d85"},"schema_version":"1.0","source":{"id":"0811.1996","kind":"arxiv","version":1}},"canonical_sha256":"ee8451f0c454a28f4f648a10202257df5577e70ed86735763deb10ae54ebcd3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee8451f0c454a28f4f648a10202257df5577e70ed86735763deb10ae54ebcd3a","first_computed_at":"2026-05-18T04:29:25.149810Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:25.149810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tHpVNicg9Spt+H8OCT1NRXmg/v88BJhHLn7vsXx6SFxAbS9L2UvWzrRYj1OG0qO+P4uQxBQIVSpBHTGQZ8tACQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:25.150400Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.1996","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b13fb6e8a8dee989eb095bc1d65601e0a268086aa31d8c8e8a0a29a463396842","sha256:9d0367c3a9f0999a456ccac9931412fd62d584580ea7749818d68dc5c56fc275"],"state_sha256":"dfef3a906cc5452fc9fcdbd1dde5accd250b0d09874b5d04fc9ec0d4cdb6658e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pfxI8/By5pBzOMkE2OMAmi/lKb5Iyd+OKHVRL4941yr+eQxbeo7TlI38Sk+O+A/NZaJyDLLlaKJm7mpFb+vWBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:20:30.682829Z","bundle_sha256":"cfe8f909a9d3e50139a30219dbe1b3e03ebe88f5e176d322d37106bcb68eafaf"}}