{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:X2BIM6ZQYWE4AQWN6MHH7IODZT","short_pith_number":"pith:X2BIM6ZQ","canonical_record":{"source":{"id":"1109.3913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-18T21:38:43Z","cross_cats_sorted":[],"title_canon_sha256":"4f02a540d04c998b76ef2f01cb56edbdefaa77f7370916bce2c6b30312fd258d","abstract_canon_sha256":"41a98fa12b24132dbaaa74400b2e25d215df5fab3f9f86bde487ad3c329496fa"},"schema_version":"1.0"},"canonical_sha256":"be82867b30c589c042cdf30e7fa1c3cccaa826bc6e6f86c1d7f32400febc1beb","source":{"kind":"arxiv","id":"1109.3913","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3913","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3913v1","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3913","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"pith_short_12","alias_value":"X2BIM6ZQYWE4","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"X2BIM6ZQYWE4AQWN","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"X2BIM6ZQ","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:X2BIM6ZQYWE4AQWN6MHH7IODZT","target":"record","payload":{"canonical_record":{"source":{"id":"1109.3913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-18T21:38:43Z","cross_cats_sorted":[],"title_canon_sha256":"4f02a540d04c998b76ef2f01cb56edbdefaa77f7370916bce2c6b30312fd258d","abstract_canon_sha256":"41a98fa12b24132dbaaa74400b2e25d215df5fab3f9f86bde487ad3c329496fa"},"schema_version":"1.0"},"canonical_sha256":"be82867b30c589c042cdf30e7fa1c3cccaa826bc6e6f86c1d7f32400febc1beb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:21:36.473404Z","signature_b64":"WBRb0kI9UDPSr1WcyN3tRtNviViOVfnp3VMahyCA+mUu1QZG2U+DcHl48JW6I9TIDL1Jyq08F6QxJrBpdJ3HAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be82867b30c589c042cdf30e7fa1c3cccaa826bc6e6f86c1d7f32400febc1beb","last_reissued_at":"2026-05-18T02:21:36.472811Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:21:36.472811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.3913","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":"2026-05-18T02:21:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5MBNMzTjATOcHj2f8RY2VyJv+/MyostoQN+sKl40mXQ8/umtuevCbIhMWI5uSs9HEBhpVxsxLtZ+iQCD5aQgBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:06:04.867638Z"},"content_sha256":"1988b26aa6347e2b67f60d3789a2d869c6cc2901b673f96abbccba7514de2e9e","schema_version":"1.0","event_id":"sha256:1988b26aa6347e2b67f60d3789a2d869c6cc2901b673f96abbccba7514de2e9e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:X2BIM6ZQYWE4AQWN6MHH7IODZT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planets and X-rays: a radiation diet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Pollock, C. Eiroa, D. Garcia-Alvarez, E. Solano, G. Micela, I. Ribas, J. Sanz-Forcada","submitted_at":"2011-09-18T21:38:43Z","abstract_excerpt":"According to theory, high energy emission from the coronae of cool stars can severely erode the atmosphere of orbiting planets. To test the long term effects of the erosion we study a large sample of planet-hosting stars observed in X-rays. The results reveal that massive planets (Mp sin i > 1.5 Mj) may survive only if exposed to low accumulated coronal radiation. The planet HD 209458 b might have lost more than 1 Mj already, and other cases, like tau Boo b, could be losing mass at a rate of 3.4 Earth masses per Gyr. The strongest erosive effects would take place during the first stages of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3913","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":"2026-05-18T02:21:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dDHSDsHRcC147F2APNPmTHhqtZwtMXOyzxqiKem6gdzXyRX0djOeC0J1gvH4LvJRoQEKr/5THpmylyPIu8hEAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:06:04.867981Z"},"content_sha256":"bb53fd39bd091cfe1083c71a6e1e44c8826f6ee15be6b870f92c72b7c6a3ec0c","schema_version":"1.0","event_id":"sha256:bb53fd39bd091cfe1083c71a6e1e44c8826f6ee15be6b870f92c72b7c6a3ec0c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT/bundle.json","state_url":"https://pith.science/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT/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":"2026-06-02T01:06:04Z","links":{"resolver":"https://pith.science/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT","bundle":"https://pith.science/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT/bundle.json","state":"https://pith.science/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X2BIM6ZQYWE4AQWN6MHH7IODZT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:X2BIM6ZQYWE4AQWN6MHH7IODZT","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":"41a98fa12b24132dbaaa74400b2e25d215df5fab3f9f86bde487ad3c329496fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-18T21:38:43Z","title_canon_sha256":"4f02a540d04c998b76ef2f01cb56edbdefaa77f7370916bce2c6b30312fd258d"},"schema_version":"1.0","source":{"id":"1109.3913","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.3913","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"arxiv_version","alias_value":"1109.3913v1","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.3913","created_at":"2026-05-18T02:21:36Z"},{"alias_kind":"pith_short_12","alias_value":"X2BIM6ZQYWE4","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"X2BIM6ZQYWE4AQWN","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"X2BIM6ZQ","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:bb53fd39bd091cfe1083c71a6e1e44c8826f6ee15be6b870f92c72b7c6a3ec0c","target":"graph","created_at":"2026-05-18T02:21:36Z","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":"According to theory, high energy emission from the coronae of cool stars can severely erode the atmosphere of orbiting planets. To test the long term effects of the erosion we study a large sample of planet-hosting stars observed in X-rays. The results reveal that massive planets (Mp sin i > 1.5 Mj) may survive only if exposed to low accumulated coronal radiation. The planet HD 209458 b might have lost more than 1 Mj already, and other cases, like tau Boo b, could be losing mass at a rate of 3.4 Earth masses per Gyr. The strongest erosive effects would take place during the first stages of the","authors_text":"A. Pollock, C. Eiroa, D. Garcia-Alvarez, E. Solano, G. Micela, I. Ribas, J. Sanz-Forcada","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-18T21:38:43Z","title":"Planets and X-rays: a radiation diet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.3913","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":"sha256:1988b26aa6347e2b67f60d3789a2d869c6cc2901b673f96abbccba7514de2e9e","target":"record","created_at":"2026-05-18T02:21:36Z","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":"41a98fa12b24132dbaaa74400b2e25d215df5fab3f9f86bde487ad3c329496fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-09-18T21:38:43Z","title_canon_sha256":"4f02a540d04c998b76ef2f01cb56edbdefaa77f7370916bce2c6b30312fd258d"},"schema_version":"1.0","source":{"id":"1109.3913","kind":"arxiv","version":1}},"canonical_sha256":"be82867b30c589c042cdf30e7fa1c3cccaa826bc6e6f86c1d7f32400febc1beb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be82867b30c589c042cdf30e7fa1c3cccaa826bc6e6f86c1d7f32400febc1beb","first_computed_at":"2026-05-18T02:21:36.472811Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:21:36.472811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WBRb0kI9UDPSr1WcyN3tRtNviViOVfnp3VMahyCA+mUu1QZG2U+DcHl48JW6I9TIDL1Jyq08F6QxJrBpdJ3HAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:21:36.473404Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.3913","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1988b26aa6347e2b67f60d3789a2d869c6cc2901b673f96abbccba7514de2e9e","sha256:bb53fd39bd091cfe1083c71a6e1e44c8826f6ee15be6b870f92c72b7c6a3ec0c"],"state_sha256":"63dacdd32f9f184cd5c7a0cf2d6972edae1cf477f762dc87d65e77597daa7d9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fGzeUkgsLSi492kvWVsEjXpGHrqHoxLLKzu9yEqlsQVK2jjxtJiajG7bUeizGLwSFSiO6iR56hQFexDgLr8MCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T01:06:04.869912Z","bundle_sha256":"29366c24cf1ff69af8d5863ca0c18186241ac3a81cbab16a32cfc04d8a3a839d"}}