{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:Q4GH2HD543LP3CI7POBXD2JBSD","short_pith_number":"pith:Q4GH2HD5","canonical_record":{"source":{"id":"2608.13269","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T14:07:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"33f52c31d88728c7e6c3ab00dea960e3458cb5c827ddf4a04e662483ea97e4fe","abstract_canon_sha256":"09119d7e6a4c74a8df0c39b6264b531eeaaaf8d5713d1d655ed1058c8a13afd5"},"schema_version":"1.0"},"canonical_sha256":"870c7d1c7de6d6fd891f7b8371e92190fea0256d3ca82e2092f1f2a2c95aad13","source":{"kind":"arxiv","id":"2608.13269","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13269","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13269v1","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13269","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"pith_short_12","alias_value":"Q4GH2HD543LP","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"pith_short_16","alias_value":"Q4GH2HD543LP3CI7","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"pith_short_8","alias_value":"Q4GH2HD5","created_at":"2026-08-14T01:00:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:Q4GH2HD543LP3CI7POBXD2JBSD","target":"record","payload":{"canonical_record":{"source":{"id":"2608.13269","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T14:07:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"33f52c31d88728c7e6c3ab00dea960e3458cb5c827ddf4a04e662483ea97e4fe","abstract_canon_sha256":"09119d7e6a4c74a8df0c39b6264b531eeaaaf8d5713d1d655ed1058c8a13afd5"},"schema_version":"1.0"},"canonical_sha256":"870c7d1c7de6d6fd891f7b8371e92190fea0256d3ca82e2092f1f2a2c95aad13","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-14T01:00:49.349674Z","signature_b64":"xR9IEXpSg0wXG2m1yJkkb+yV8XKshCxsK4Jj0qPp3qLVqov2kuAB5VyjhS82GAm7L9BOIqWGIAsJ3ioB2vEBCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"870c7d1c7de6d6fd891f7b8371e92190fea0256d3ca82e2092f1f2a2c95aad13","last_reissued_at":"2026-08-14T01:00:49.347625Z","signature_status":"signed_v1","first_computed_at":"2026-08-14T01:00:49.347625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.13269","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":"2026-08-14T01:00:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Anl9Ifj/YCeU393B+yrC7JV2xX/ju202VX0kz6yk0JlGqpRzEz4PrLu6ISSGMMhnSuIhuoy5rWYmTFLaLG6dCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T02:52:17.771900Z"},"content_sha256":"67976c42ceee908eac9137ffacf7ebe80b4dd86f7ac73f310961db9791392cc2","schema_version":"1.0","event_id":"sha256:67976c42ceee908eac9137ffacf7ebe80b4dd86f7ac73f310961db9791392cc2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:Q4GH2HD543LP3CI7POBXD2JBSD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stellar tidal systematics in apsidal-motion searches for circumbinary planets: CH Ind and SW CMa","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Qunfeng Jiang","submitted_at":"2026-08-13T14:07:02Z","abstract_excerpt":"Thornton et al. (2026) reported 27 non-transiting circumbinary-planet candidates from excess apsidal motion in TESS eclipsing-binary timings. The classical stellar contribution is sensitive to target-specific radii, apsidal constants $k_2$, and rotation. We re-evaluate two evolved, double-lined eclipsing binaries in that sample: the pulsating system CH Ind and the Am system SW CMa. Their component masses and radii have been measured in dedicated binary studies, allowing the stellar contribution to be calculated directly. For CH Ind, six independent TESS sector nodes give $\\dot{\\omega}_{\\rm obs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13269","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.13269/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-08-14T01:00:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R2x9Iuv1jN4aFDvTC30feq1gFLoW6/sQ6MpktLrVK5I//dY72swLzQ0EV/Pxx/BMLvoXspx64YS1hd0HIH8gBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T02:52:17.772741Z"},"content_sha256":"a8d620cd5391fe8567103f58ac1e6e812d36a40ced23cfc56d128466a1db4030","schema_version":"1.0","event_id":"sha256:a8d620cd5391fe8567103f58ac1e6e812d36a40ced23cfc56d128466a1db4030"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q4GH2HD543LP3CI7POBXD2JBSD/bundle.json","state_url":"https://pith.science/pith/Q4GH2HD543LP3CI7POBXD2JBSD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q4GH2HD543LP3CI7POBXD2JBSD/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":"2026-08-15T02:52:17Z","links":{"resolver":"https://pith.science/pith/Q4GH2HD543LP3CI7POBXD2JBSD","bundle":"https://pith.science/pith/Q4GH2HD543LP3CI7POBXD2JBSD/bundle.json","state":"https://pith.science/pith/Q4GH2HD543LP3CI7POBXD2JBSD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q4GH2HD543LP3CI7POBXD2JBSD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:Q4GH2HD543LP3CI7POBXD2JBSD","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":"09119d7e6a4c74a8df0c39b6264b531eeaaaf8d5713d1d655ed1058c8a13afd5","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T14:07:02Z","title_canon_sha256":"33f52c31d88728c7e6c3ab00dea960e3458cb5c827ddf4a04e662483ea97e4fe"},"schema_version":"1.0","source":{"id":"2608.13269","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13269","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13269v1","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13269","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"pith_short_12","alias_value":"Q4GH2HD543LP","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"pith_short_16","alias_value":"Q4GH2HD543LP3CI7","created_at":"2026-08-14T01:00:49Z"},{"alias_kind":"pith_short_8","alias_value":"Q4GH2HD5","created_at":"2026-08-14T01:00:49Z"}],"graph_snapshots":[{"event_id":"sha256:a8d620cd5391fe8567103f58ac1e6e812d36a40ced23cfc56d128466a1db4030","target":"graph","created_at":"2026-08-14T01:00:49Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2608.13269/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Thornton et al. (2026) reported 27 non-transiting circumbinary-planet candidates from excess apsidal motion in TESS eclipsing-binary timings. The classical stellar contribution is sensitive to target-specific radii, apsidal constants $k_2$, and rotation. We re-evaluate two evolved, double-lined eclipsing binaries in that sample: the pulsating system CH Ind and the Am system SW CMa. Their component masses and radii have been measured in dedicated binary studies, allowing the stellar contribution to be calculated directly. For CH Ind, six independent TESS sector nodes give $\\dot{\\omega}_{\\rm obs","authors_text":"Qunfeng Jiang","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T14:07:02Z","title":"Stellar tidal systematics in apsidal-motion searches for circumbinary planets: CH Ind and SW CMa"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13269","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":"sha256:67976c42ceee908eac9137ffacf7ebe80b4dd86f7ac73f310961db9791392cc2","target":"record","created_at":"2026-08-14T01:00:49Z","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":"09119d7e6a4c74a8df0c39b6264b531eeaaaf8d5713d1d655ed1058c8a13afd5","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-08-13T14:07:02Z","title_canon_sha256":"33f52c31d88728c7e6c3ab00dea960e3458cb5c827ddf4a04e662483ea97e4fe"},"schema_version":"1.0","source":{"id":"2608.13269","kind":"arxiv","version":1}},"canonical_sha256":"870c7d1c7de6d6fd891f7b8371e92190fea0256d3ca82e2092f1f2a2c95aad13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"870c7d1c7de6d6fd891f7b8371e92190fea0256d3ca82e2092f1f2a2c95aad13","first_computed_at":"2026-08-14T01:00:49.347625Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-14T01:00:49.347625Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xR9IEXpSg0wXG2m1yJkkb+yV8XKshCxsK4Jj0qPp3qLVqov2kuAB5VyjhS82GAm7L9BOIqWGIAsJ3ioB2vEBCw==","signature_status":"signed_v1","signed_at":"2026-08-14T01:00:49.349674Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.13269","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67976c42ceee908eac9137ffacf7ebe80b4dd86f7ac73f310961db9791392cc2","sha256:a8d620cd5391fe8567103f58ac1e6e812d36a40ced23cfc56d128466a1db4030"],"state_sha256":"5ff3cec4dca94e32b80943fc85b701ceea7ae42f18a10279b61c519d2878663e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cj3IyL4CRqQt10jJSk+gbKWgPjcNra3Mg4OIIX4AYyUZi61C/Tcmrw/sZUzYYNQ7khB40QGEDaYIm508JMRWAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T02:52:17.780603Z","bundle_sha256":"92cbcd197700d856f9685d936dfbdd7f57ee990e1fb273f1fbc8ed7ce9b6f0b4"}}