{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:XZRA3GWPNHEQTC7PK43QFKESUE","short_pith_number":"pith:XZRA3GWP","canonical_record":{"source":{"id":"1301.7748","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T20:49:34Z","cross_cats_sorted":[],"title_canon_sha256":"1109bc34214e517a9ee6826f9aaafb24550c9748ec623a19a1beb971417ff4d1","abstract_canon_sha256":"1b71329cd3de5357580b3a14bf24feccfe7c0bcad6d85c8b0e80810343e80e87"},"schema_version":"1.0"},"canonical_sha256":"be620d9acf69c9098bef573702a892a13c771fb764c506a051913ee455398144","source":{"kind":"arxiv","id":"1301.7748","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.7748","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"arxiv_version","alias_value":"1301.7748v1","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.7748","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"pith_short_12","alias_value":"XZRA3GWPNHEQ","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XZRA3GWPNHEQTC7P","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XZRA3GWP","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:XZRA3GWPNHEQTC7PK43QFKESUE","target":"record","payload":{"canonical_record":{"source":{"id":"1301.7748","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T20:49:34Z","cross_cats_sorted":[],"title_canon_sha256":"1109bc34214e517a9ee6826f9aaafb24550c9748ec623a19a1beb971417ff4d1","abstract_canon_sha256":"1b71329cd3de5357580b3a14bf24feccfe7c0bcad6d85c8b0e80810343e80e87"},"schema_version":"1.0"},"canonical_sha256":"be620d9acf69c9098bef573702a892a13c771fb764c506a051913ee455398144","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:56.506443Z","signature_b64":"jMd+Uv8q1GrNljY9PQzGJiyYWVqTfhll5YXKUL3HDjr8dbfP/xO008Cy71F8xjYRHSKHBcqiDY0xGnRDGgbnBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be620d9acf69c9098bef573702a892a13c771fb764c506a051913ee455398144","last_reissued_at":"2026-05-18T01:51:56.505692Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:56.505692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.7748","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":"2026-05-18T01:51:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"as82FVgMpT61b1dBNR56mXBS7Gty4gdARXrhU4/EZn0GiS0NHcbzR2OedTUowvNTu8Cd5o7tTl9PwG+LIlqTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T22:25:09.073296Z"},"content_sha256":"1e195b6d210a26b734ec2ed588e1188e0aacbd2408de2e9733be3d9dbc1e6ebe","schema_version":"1.0","event_id":"sha256:1e195b6d210a26b734ec2ed588e1188e0aacbd2408de2e9733be3d9dbc1e6ebe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:XZRA3GWPNHEQTC7PK43QFKESUE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A coordinated optical and X-ray spectroscopic campaign on HD179949: searching for planet-induced chromospheric and coronal activity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.C. Cameron, A.F. Lanza, A.F. Mart\\`inez Fiorenzano, A. Maggio, C. Moutou, D. Bohlender, E.L. Shkolnik, G. Scandariato, I. Pagano, J.-F. Donati, M. Jardine, R. Fares, S. Dieters","submitted_at":"2013-01-31T20:49:34Z","abstract_excerpt":"HD179949 is an F8V star, orbited by a close-in giant planet with a period of ~3 days. Previous studies suggested that the planet enhances the magnetic activity of the parent star, producing a chromospheric hot spot which rotates in phase with the planet orbit. However, this phenomenon is intermittent since it was observed in several but not all seasons. A long-term monitoring of the magnetic activity of HD179949 is required to study the amplitude and time scales of star-planet interactions. In 2009 we performed a simultaneous optical and X-ray spectroscopic campaign to monitor the magnetic act"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.7748","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":"2026-05-18T01:51:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qi5D3vFavxX23P9VXl/D95Yq86Fkn8x5aFzA0QHUYivp3UCxBFchuEPAvSFYhy8Xf5LErYYBlsPSJHGBLIY7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T22:25:09.073888Z"},"content_sha256":"3a90ab1ed7333c4fe68f93324aa9b544fb90dd81e33e49163053b49ff3849fb0","schema_version":"1.0","event_id":"sha256:3a90ab1ed7333c4fe68f93324aa9b544fb90dd81e33e49163053b49ff3849fb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XZRA3GWPNHEQTC7PK43QFKESUE/bundle.json","state_url":"https://pith.science/pith/XZRA3GWPNHEQTC7PK43QFKESUE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XZRA3GWPNHEQTC7PK43QFKESUE/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":"2026-06-04T22:25:09Z","links":{"resolver":"https://pith.science/pith/XZRA3GWPNHEQTC7PK43QFKESUE","bundle":"https://pith.science/pith/XZRA3GWPNHEQTC7PK43QFKESUE/bundle.json","state":"https://pith.science/pith/XZRA3GWPNHEQTC7PK43QFKESUE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XZRA3GWPNHEQTC7PK43QFKESUE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XZRA3GWPNHEQTC7PK43QFKESUE","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":"1b71329cd3de5357580b3a14bf24feccfe7c0bcad6d85c8b0e80810343e80e87","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T20:49:34Z","title_canon_sha256":"1109bc34214e517a9ee6826f9aaafb24550c9748ec623a19a1beb971417ff4d1"},"schema_version":"1.0","source":{"id":"1301.7748","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.7748","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"arxiv_version","alias_value":"1301.7748v1","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.7748","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"pith_short_12","alias_value":"XZRA3GWPNHEQ","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XZRA3GWPNHEQTC7P","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XZRA3GWP","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:3a90ab1ed7333c4fe68f93324aa9b544fb90dd81e33e49163053b49ff3849fb0","target":"graph","created_at":"2026-05-18T01:51:56Z","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":"HD179949 is an F8V star, orbited by a close-in giant planet with a period of ~3 days. Previous studies suggested that the planet enhances the magnetic activity of the parent star, producing a chromospheric hot spot which rotates in phase with the planet orbit. However, this phenomenon is intermittent since it was observed in several but not all seasons. A long-term monitoring of the magnetic activity of HD179949 is required to study the amplitude and time scales of star-planet interactions. In 2009 we performed a simultaneous optical and X-ray spectroscopic campaign to monitor the magnetic act","authors_text":"A.C. Cameron, A.F. Lanza, A.F. Mart\\`inez Fiorenzano, A. Maggio, C. Moutou, D. Bohlender, E.L. Shkolnik, G. Scandariato, I. Pagano, J.-F. Donati, M. Jardine, R. Fares, S. Dieters","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T20:49:34Z","title":"A coordinated optical and X-ray spectroscopic campaign on HD179949: searching for planet-induced chromospheric and coronal activity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.7748","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":"sha256:1e195b6d210a26b734ec2ed588e1188e0aacbd2408de2e9733be3d9dbc1e6ebe","target":"record","created_at":"2026-05-18T01:51:56Z","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":"1b71329cd3de5357580b3a14bf24feccfe7c0bcad6d85c8b0e80810343e80e87","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T20:49:34Z","title_canon_sha256":"1109bc34214e517a9ee6826f9aaafb24550c9748ec623a19a1beb971417ff4d1"},"schema_version":"1.0","source":{"id":"1301.7748","kind":"arxiv","version":1}},"canonical_sha256":"be620d9acf69c9098bef573702a892a13c771fb764c506a051913ee455398144","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be620d9acf69c9098bef573702a892a13c771fb764c506a051913ee455398144","first_computed_at":"2026-05-18T01:51:56.505692Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:56.505692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jMd+Uv8q1GrNljY9PQzGJiyYWVqTfhll5YXKUL3HDjr8dbfP/xO008Cy71F8xjYRHSKHBcqiDY0xGnRDGgbnBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:56.506443Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.7748","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e195b6d210a26b734ec2ed588e1188e0aacbd2408de2e9733be3d9dbc1e6ebe","sha256:3a90ab1ed7333c4fe68f93324aa9b544fb90dd81e33e49163053b49ff3849fb0"],"state_sha256":"b2e88d041bc13d5abacbe6a56c6821f86420186a2116278edf1c5340b6efd07b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gv9OUFk3odbybA5UtRH4Be4m2ZQqxOIQp+T20pgvdSZI2Msn+emRQ9QyTnclUudBR2UnC1uMn/7ncpSzjjeVAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T22:25:09.077179Z","bundle_sha256":"8005c3f443e80e8f416ae1028cb235c59fd1c944a768f43108723084d15d59f4"}}