{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CWJJJFG7KUXVGXHIU6YAMWAPPZ","short_pith_number":"pith:CWJJJFG7","canonical_record":{"source":{"id":"2505.19967","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-26T13:27:32Z","cross_cats_sorted":[],"title_canon_sha256":"9ea22cf55d661ec332d46c49908a78a8528a2f522f309d7194ed7cc2b993ecd6","abstract_canon_sha256":"77cf995062366b1d563fc624fb7a670f7a932a0837018731755139f888464b0d"},"schema_version":"1.0"},"canonical_sha256":"15929494df552f535ce8a7b006580f7e69dc4a9a455f76b99f62cf50f875b5a2","source":{"kind":"arxiv","id":"2505.19967","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.19967","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"arxiv_version","alias_value":"2505.19967v1","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.19967","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"pith_short_12","alias_value":"CWJJJFG7KUXV","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"pith_short_16","alias_value":"CWJJJFG7KUXVGXHI","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"pith_short_8","alias_value":"CWJJJFG7","created_at":"2026-07-05T11:09:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CWJJJFG7KUXVGXHIU6YAMWAPPZ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.19967","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-26T13:27:32Z","cross_cats_sorted":[],"title_canon_sha256":"9ea22cf55d661ec332d46c49908a78a8528a2f522f309d7194ed7cc2b993ecd6","abstract_canon_sha256":"77cf995062366b1d563fc624fb7a670f7a932a0837018731755139f888464b0d"},"schema_version":"1.0"},"canonical_sha256":"15929494df552f535ce8a7b006580f7e69dc4a9a455f76b99f62cf50f875b5a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:09:50.634204Z","signature_b64":"NYJEb8r5Dr/xoItCHVz+IN9PJrkeaC3Ar4AbuBO3JK0JbX7fRZrZYkOTfDrwcRBi3Ih7fVXATcN5y8y5cIbWBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15929494df552f535ce8a7b006580f7e69dc4a9a455f76b99f62cf50f875b5a2","last_reissued_at":"2026-07-05T11:09:50.633710Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:09:50.633710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.19967","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":"2026-07-05T11:09:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcwGNmgNW0RalEQWz1sCXiD/YyiP92k1M+gniXVkvcbd6/ARUevfsuDQjQv5g97tEktm1LSiXe//6m160LJVDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T20:26:06.760086Z"},"content_sha256":"7638c0b354b83f1a2903bd58a3d3cc07eca801b3bf6ee11e824c4503d36f9f9c","schema_version":"1.0","event_id":"sha256:7638c0b354b83f1a2903bd58a3d3cc07eca801b3bf6ee11e824c4503d36f9f9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CWJJJFG7KUXVGXHIU6YAMWAPPZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhanced magnetic activity in rapidly rotating binary stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Charlotte Gehan, Jamie Tayar, Jason Nordhaus, Jie Yu, Laurent Gizon, Micha\\\"el Bazot, Patrick Gaulme, Robert H. Cameron, Saskia Hekker, Shaolan Bi, Simon J. Murphy, Timothy R. Bedding, Yajie Chen, Yuan-Sen Ting, Zhanwen Han","submitted_at":"2025-05-26T13:27:32Z","abstract_excerpt":"Stellar activity is fundamental to stellar evolution and the formation and habitability of exoplanets. The interaction between convective motions and rotation in cool stars results in a dynamo process that drives magnetic surface activity. In single stars, activity increases with rotation rate until it saturates for stars with rotation periods Prot < 3 - 10 d. However, the mechanism responsible for saturation remains unclear. Observations indicate that red giants in binary systems that are in spin-orbit resonance exhibit stronger chromospheric activity than single stars with similar rotation r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.19967","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/2505.19967/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":"2026-07-05T11:09:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z0J4ZHdvGeQwST5D1uDANUaX9pjI80KaTC2v7rMITe+4rks2ZuRZWbJIY0UUy9EGHSCd9e4Pv228nTtLcdtRBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T20:26:06.760486Z"},"content_sha256":"0c0d0d2d14ea86a5896587e77293f5f28e2042291f7d4229d3439f02d74ee62a","schema_version":"1.0","event_id":"sha256:0c0d0d2d14ea86a5896587e77293f5f28e2042291f7d4229d3439f02d74ee62a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ/bundle.json","state_url":"https://pith.science/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ/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":"2026-07-06T20:26:06Z","links":{"resolver":"https://pith.science/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ","bundle":"https://pith.science/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ/bundle.json","state":"https://pith.science/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CWJJJFG7KUXVGXHIU6YAMWAPPZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CWJJJFG7KUXVGXHIU6YAMWAPPZ","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":"77cf995062366b1d563fc624fb7a670f7a932a0837018731755139f888464b0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-26T13:27:32Z","title_canon_sha256":"9ea22cf55d661ec332d46c49908a78a8528a2f522f309d7194ed7cc2b993ecd6"},"schema_version":"1.0","source":{"id":"2505.19967","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.19967","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"arxiv_version","alias_value":"2505.19967v1","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.19967","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"pith_short_12","alias_value":"CWJJJFG7KUXV","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"pith_short_16","alias_value":"CWJJJFG7KUXVGXHI","created_at":"2026-07-05T11:09:50Z"},{"alias_kind":"pith_short_8","alias_value":"CWJJJFG7","created_at":"2026-07-05T11:09:50Z"}],"graph_snapshots":[{"event_id":"sha256:0c0d0d2d14ea86a5896587e77293f5f28e2042291f7d4229d3439f02d74ee62a","target":"graph","created_at":"2026-07-05T11:09:50Z","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/2505.19967/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Stellar activity is fundamental to stellar evolution and the formation and habitability of exoplanets. The interaction between convective motions and rotation in cool stars results in a dynamo process that drives magnetic surface activity. In single stars, activity increases with rotation rate until it saturates for stars with rotation periods Prot < 3 - 10 d. However, the mechanism responsible for saturation remains unclear. Observations indicate that red giants in binary systems that are in spin-orbit resonance exhibit stronger chromospheric activity than single stars with similar rotation r","authors_text":"Charlotte Gehan, Jamie Tayar, Jason Nordhaus, Jie Yu, Laurent Gizon, Micha\\\"el Bazot, Patrick Gaulme, Robert H. Cameron, Saskia Hekker, Shaolan Bi, Simon J. Murphy, Timothy R. Bedding, Yajie Chen, Yuan-Sen Ting, Zhanwen Han","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-26T13:27:32Z","title":"Enhanced magnetic activity in rapidly rotating binary stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.19967","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":"sha256:7638c0b354b83f1a2903bd58a3d3cc07eca801b3bf6ee11e824c4503d36f9f9c","target":"record","created_at":"2026-07-05T11:09:50Z","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":"77cf995062366b1d563fc624fb7a670f7a932a0837018731755139f888464b0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-05-26T13:27:32Z","title_canon_sha256":"9ea22cf55d661ec332d46c49908a78a8528a2f522f309d7194ed7cc2b993ecd6"},"schema_version":"1.0","source":{"id":"2505.19967","kind":"arxiv","version":1}},"canonical_sha256":"15929494df552f535ce8a7b006580f7e69dc4a9a455f76b99f62cf50f875b5a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15929494df552f535ce8a7b006580f7e69dc4a9a455f76b99f62cf50f875b5a2","first_computed_at":"2026-07-05T11:09:50.633710Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:09:50.633710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NYJEb8r5Dr/xoItCHVz+IN9PJrkeaC3Ar4AbuBO3JK0JbX7fRZrZYkOTfDrwcRBi3Ih7fVXATcN5y8y5cIbWBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:09:50.634204Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.19967","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7638c0b354b83f1a2903bd58a3d3cc07eca801b3bf6ee11e824c4503d36f9f9c","sha256:0c0d0d2d14ea86a5896587e77293f5f28e2042291f7d4229d3439f02d74ee62a"],"state_sha256":"35aafeecb63110f7238c9ee308ea595eebdea7f170758f87a7e18c964c3068f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/cgZydQwn3C9UGfx5w4rMyn9QS4l/VYWgmr5Y7PPNf9Z0VxDdn/bT7QlxFGklSSzaNtyvNxo0AZu4+sOd0zGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T20:26:06.762427Z","bundle_sha256":"44b1157e77e099bea8262218c1b6bb36d32fac6e8dc123c4add0222c60f7b241"}}