{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IJDS3UTU3R2AA3UYBN66XFC4RS","short_pith_number":"pith:IJDS3UTU","canonical_record":{"source":{"id":"1401.3698","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-15T18:47:46Z","cross_cats_sorted":[],"title_canon_sha256":"4e626c75c5b6e31b301567ec87c75750c31333b70358428e969627b608b7e244","abstract_canon_sha256":"041936c8eee55d0ee7b8c28eaeef2e9eca26519145f351d073156d5fc63081d5"},"schema_version":"1.0"},"canonical_sha256":"42472dd274dc74006e980b7deb945c8ca12bdde0c0dfba7dd7b60a111c6b648b","source":{"kind":"arxiv","id":"1401.3698","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.3698","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"1401.3698v1","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.3698","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"IJDS3UTU3R2A","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IJDS3UTU3R2AA3UY","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IJDS3UTU","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IJDS3UTU3R2AA3UYBN66XFC4RS","target":"record","payload":{"canonical_record":{"source":{"id":"1401.3698","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-15T18:47:46Z","cross_cats_sorted":[],"title_canon_sha256":"4e626c75c5b6e31b301567ec87c75750c31333b70358428e969627b608b7e244","abstract_canon_sha256":"041936c8eee55d0ee7b8c28eaeef2e9eca26519145f351d073156d5fc63081d5"},"schema_version":"1.0"},"canonical_sha256":"42472dd274dc74006e980b7deb945c8ca12bdde0c0dfba7dd7b60a111c6b648b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:25.211274Z","signature_b64":"YyllIPQWTTNUys19h7fol59rmIR1RGMG80BUJrZa78grAbeD/q7q6WcubknnsKt+z9b5Ye7iBaxKj7vDSP/9BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"42472dd274dc74006e980b7deb945c8ca12bdde0c0dfba7dd7b60a111c6b648b","last_reissued_at":"2026-05-18T01:45:25.210770Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:25.210770Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.3698","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":"2026-05-18T01:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HnoSqodlL3Cyn5xvL0REa+t0VSbTe+8qxFkqr2dGDF99I684jDvJJBEcsD/feNoXv2UCRuTyxV27QxeZZ7vSBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T07:10:39.874463Z"},"content_sha256":"1757b31383f4b07db71ff136456e06ade3bf489de182dad82daafa09498e867e","schema_version":"1.0","event_id":"sha256:1757b31383f4b07db71ff136456e06ade3bf489de182dad82daafa09498e867e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IJDS3UTU3R2AA3UYBN66XFC4RS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Double Contact Nature of TT Herculis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Dirk Terrell, Robert H. Nelson","submitted_at":"2014-01-15T18:47:46Z","abstract_excerpt":"We present new radial velocities and photometry of the short-period Algol TT Herculis. Previous attempts to model the light curves of the system have met with limited success, primarily because of the lack of a reliable mass ratio. Our spectroscopic observations are the first to result in radial velocities for the secondary star, and thus provide a spectroscopic mass ratio. Simultaneous analysis of the radial velocities and new photometry shows that the system is a double contact binary, with a rapidly rotating primary that fills its limiting lobe."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.3698","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":"2026-05-18T01:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TO55nqEmfEoc5QQFk9rykEM3Nu7it9miwpuaMTbq5vN74pcJVDopHfmIILX+KIkVLYAOmIW4A7O43f7ad0pCDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T07:10:39.875122Z"},"content_sha256":"5c93128a8a9b1fa2ced29b38e186ca345d238fa700c289a0bf2df67efbfa3b97","schema_version":"1.0","event_id":"sha256:5c93128a8a9b1fa2ced29b38e186ca345d238fa700c289a0bf2df67efbfa3b97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IJDS3UTU3R2AA3UYBN66XFC4RS/bundle.json","state_url":"https://pith.science/pith/IJDS3UTU3R2AA3UYBN66XFC4RS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IJDS3UTU3R2AA3UYBN66XFC4RS/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":"2026-06-05T07:10:39Z","links":{"resolver":"https://pith.science/pith/IJDS3UTU3R2AA3UYBN66XFC4RS","bundle":"https://pith.science/pith/IJDS3UTU3R2AA3UYBN66XFC4RS/bundle.json","state":"https://pith.science/pith/IJDS3UTU3R2AA3UYBN66XFC4RS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IJDS3UTU3R2AA3UYBN66XFC4RS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IJDS3UTU3R2AA3UYBN66XFC4RS","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":"041936c8eee55d0ee7b8c28eaeef2e9eca26519145f351d073156d5fc63081d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-15T18:47:46Z","title_canon_sha256":"4e626c75c5b6e31b301567ec87c75750c31333b70358428e969627b608b7e244"},"schema_version":"1.0","source":{"id":"1401.3698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.3698","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"1401.3698v1","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.3698","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"IJDS3UTU3R2A","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IJDS3UTU3R2AA3UY","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IJDS3UTU","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:5c93128a8a9b1fa2ced29b38e186ca345d238fa700c289a0bf2df67efbfa3b97","target":"graph","created_at":"2026-05-18T01:45:25Z","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 new radial velocities and photometry of the short-period Algol TT Herculis. Previous attempts to model the light curves of the system have met with limited success, primarily because of the lack of a reliable mass ratio. Our spectroscopic observations are the first to result in radial velocities for the secondary star, and thus provide a spectroscopic mass ratio. Simultaneous analysis of the radial velocities and new photometry shows that the system is a double contact binary, with a rapidly rotating primary that fills its limiting lobe.","authors_text":"Dirk Terrell, Robert H. Nelson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-15T18:47:46Z","title":"The Double Contact Nature of TT Herculis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.3698","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":"sha256:1757b31383f4b07db71ff136456e06ade3bf489de182dad82daafa09498e867e","target":"record","created_at":"2026-05-18T01:45:25Z","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":"041936c8eee55d0ee7b8c28eaeef2e9eca26519145f351d073156d5fc63081d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-15T18:47:46Z","title_canon_sha256":"4e626c75c5b6e31b301567ec87c75750c31333b70358428e969627b608b7e244"},"schema_version":"1.0","source":{"id":"1401.3698","kind":"arxiv","version":1}},"canonical_sha256":"42472dd274dc74006e980b7deb945c8ca12bdde0c0dfba7dd7b60a111c6b648b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"42472dd274dc74006e980b7deb945c8ca12bdde0c0dfba7dd7b60a111c6b648b","first_computed_at":"2026-05-18T01:45:25.210770Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:25.210770Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YyllIPQWTTNUys19h7fol59rmIR1RGMG80BUJrZa78grAbeD/q7q6WcubknnsKt+z9b5Ye7iBaxKj7vDSP/9BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:25.211274Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.3698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1757b31383f4b07db71ff136456e06ade3bf489de182dad82daafa09498e867e","sha256:5c93128a8a9b1fa2ced29b38e186ca345d238fa700c289a0bf2df67efbfa3b97"],"state_sha256":"9eff58a7d15124626c76b078c402fc6289eea6c21238eaafef86f681dd5f006d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/rGdc5yeNTJilSJ0E6Pl08ctwB9j1a7s46GiO4vHMJSGMuLJi9hv+IGp0YYnC8vTnVCgJe9IPNkCl02idtStDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T07:10:39.878461Z","bundle_sha256":"9e4dd25470079732c18d8fdaa7c84e9fd8c4f9f50742f920da9c8fe30cab128c"}}