{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:QB3C3IJXKDNBQSHS7B7ENI5MJV","short_pith_number":"pith:QB3C3IJX","canonical_record":{"source":{"id":"1208.3591","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-17T13:12:42Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"8548dc801d769799bb6019a03846b686ec70cc4b966d77405e61d4572755d280","abstract_canon_sha256":"c62684a76e076e6ef549da9d6010e49a84e743902908909600556e16f0ca97e8"},"schema_version":"1.0"},"canonical_sha256":"80762da13750da1848f2f87e46a3ac4d40150bf12597dbb2c0fd222b53339238","source":{"kind":"arxiv","id":"1208.3591","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3591","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3591v1","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3591","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"pith_short_12","alias_value":"QB3C3IJXKDNB","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QB3C3IJXKDNBQSHS","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QB3C3IJX","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:QB3C3IJXKDNBQSHS7B7ENI5MJV","target":"record","payload":{"canonical_record":{"source":{"id":"1208.3591","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-17T13:12:42Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"8548dc801d769799bb6019a03846b686ec70cc4b966d77405e61d4572755d280","abstract_canon_sha256":"c62684a76e076e6ef549da9d6010e49a84e743902908909600556e16f0ca97e8"},"schema_version":"1.0"},"canonical_sha256":"80762da13750da1848f2f87e46a3ac4d40150bf12597dbb2c0fd222b53339238","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:09.787958Z","signature_b64":"kR4PcaagCnvnKdD/mt5LasO80kkC17EYJbWeu8WarQVNPU/LPIS9H3mvbgxsroBS6kx+sU3DDBJJbNhO4BBoAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80762da13750da1848f2f87e46a3ac4d40150bf12597dbb2c0fd222b53339238","last_reissued_at":"2026-05-18T01:55:09.787482Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:09.787482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.3591","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":"2026-05-18T01:55:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hfYA0vyuy/F80KlgkzgFQUJSEfxv7MG2d4YgX6Pijok7/ARsUlZ9X8T4lp5DUJ5wLnclcSpFd/LZquigNaVcCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:41:19.415155Z"},"content_sha256":"8b4ad55682c6e530d4b2d7c12a6a30cb90ea2755ee617119f59535e0b9f22131","schema_version":"1.0","event_id":"sha256:8b4ad55682c6e530d4b2d7c12a6a30cb90ea2755ee617119f59535e0b9f22131"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:QB3C3IJXKDNBQSHS7B7ENI5MJV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A transiting companion to the eclipsing binary KIC002856960","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"C. A. Watson, D. Armstrong, D. Pollacco, F. Faedi, H. M. Cegla, I. Skillen, J. Burton, J. McCormac, P. McDaid, Y. G\\'omez Maqueo Chew","submitted_at":"2012-08-17T13:12:42Z","abstract_excerpt":"We present an early result from an automated search of Kepler eclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short period eclipsing binary KIC002856960. This third body leads to transit-like features in the light curve occurring every 204.2 days, while the two other components of the system display eclipses on a 6.2 hour period. The variations due to the tertiary body last for a duration of \\sim1.26 days, or 4.9 binary orbital periods. During each crossing of the binary orbit with the tertiary body, multiple individual transits ar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3591","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":"2026-05-18T01:55:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cXwS+HZ6MH60kTvPfIqxX940q1zuSCkYK+odiox84yjP7/b1ZnHmQVaA9IvERCt4/J+eBv2jW09kWxIdNtVsBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:41:19.415529Z"},"content_sha256":"e152106d076eb38bed04d2214afa1c8ebbecd5978ba2d54e2040c39774b93c9c","schema_version":"1.0","event_id":"sha256:e152106d076eb38bed04d2214afa1c8ebbecd5978ba2d54e2040c39774b93c9c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV/bundle.json","state_url":"https://pith.science/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV/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":"2026-06-02T14:41:19Z","links":{"resolver":"https://pith.science/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV","bundle":"https://pith.science/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV/bundle.json","state":"https://pith.science/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QB3C3IJXKDNBQSHS7B7ENI5MJV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:QB3C3IJXKDNBQSHS7B7ENI5MJV","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":"c62684a76e076e6ef549da9d6010e49a84e743902908909600556e16f0ca97e8","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-17T13:12:42Z","title_canon_sha256":"8548dc801d769799bb6019a03846b686ec70cc4b966d77405e61d4572755d280"},"schema_version":"1.0","source":{"id":"1208.3591","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.3591","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"arxiv_version","alias_value":"1208.3591v1","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.3591","created_at":"2026-05-18T01:55:09Z"},{"alias_kind":"pith_short_12","alias_value":"QB3C3IJXKDNB","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QB3C3IJXKDNBQSHS","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QB3C3IJX","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:e152106d076eb38bed04d2214afa1c8ebbecd5978ba2d54e2040c39774b93c9c","target":"graph","created_at":"2026-05-18T01:55:09Z","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 an early result from an automated search of Kepler eclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short period eclipsing binary KIC002856960. This third body leads to transit-like features in the light curve occurring every 204.2 days, while the two other components of the system display eclipses on a 6.2 hour period. The variations due to the tertiary body last for a duration of \\sim1.26 days, or 4.9 binary orbital periods. During each crossing of the binary orbit with the tertiary body, multiple individual transits ar","authors_text":"C. A. Watson, D. Armstrong, D. Pollacco, F. Faedi, H. M. Cegla, I. Skillen, J. Burton, J. McCormac, P. McDaid, Y. G\\'omez Maqueo Chew","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-17T13:12:42Z","title":"A transiting companion to the eclipsing binary KIC002856960"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.3591","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":"sha256:8b4ad55682c6e530d4b2d7c12a6a30cb90ea2755ee617119f59535e0b9f22131","target":"record","created_at":"2026-05-18T01:55:09Z","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":"c62684a76e076e6ef549da9d6010e49a84e743902908909600556e16f0ca97e8","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2012-08-17T13:12:42Z","title_canon_sha256":"8548dc801d769799bb6019a03846b686ec70cc4b966d77405e61d4572755d280"},"schema_version":"1.0","source":{"id":"1208.3591","kind":"arxiv","version":1}},"canonical_sha256":"80762da13750da1848f2f87e46a3ac4d40150bf12597dbb2c0fd222b53339238","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80762da13750da1848f2f87e46a3ac4d40150bf12597dbb2c0fd222b53339238","first_computed_at":"2026-05-18T01:55:09.787482Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:09.787482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kR4PcaagCnvnKdD/mt5LasO80kkC17EYJbWeu8WarQVNPU/LPIS9H3mvbgxsroBS6kx+sU3DDBJJbNhO4BBoAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:09.787958Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.3591","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b4ad55682c6e530d4b2d7c12a6a30cb90ea2755ee617119f59535e0b9f22131","sha256:e152106d076eb38bed04d2214afa1c8ebbecd5978ba2d54e2040c39774b93c9c"],"state_sha256":"2d93dac932623e5b43a470be659ca59850dfc2dc7b428a473786c1ba2fcfe8e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hJNC285EcfPQ5G/VglrjQXgAn5UE/CyuM/buJrSZl9IaRSTgvKrTdUFX/+z8d5qJFweZ1jt+fkjuhfGY81+mAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T14:41:19.417455Z","bundle_sha256":"1cbc1f43293e3e290de6ebaee0ab6a398fc18716bdd16855e74daf5c7ab65f71"}}