{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:526CRFLRB46SMIWJEBV2CEVYE6","short_pith_number":"pith:526CRFLR","canonical_record":{"source":{"id":"1901.00890","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-03T19:43:58Z","cross_cats_sorted":[],"title_canon_sha256":"60b87041e22cc3c74490bbf93e832f03e74497679a3599c6246308c83b9bf2fa","abstract_canon_sha256":"a332fe11a3b21adda448407ad7776d453758da4e7395b2d46eccd727734a7012"},"schema_version":"1.0"},"canonical_sha256":"eebc2895710f3d2622c9206ba112b827818a89217197c5dcac24b9c57b2e1e2d","source":{"kind":"arxiv","id":"1901.00890","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.00890","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"arxiv_version","alias_value":"1901.00890v1","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00890","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"pith_short_12","alias_value":"526CRFLRB46S","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"526CRFLRB46SMIWJ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"526CRFLR","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:526CRFLRB46SMIWJEBV2CEVYE6","target":"record","payload":{"canonical_record":{"source":{"id":"1901.00890","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-03T19:43:58Z","cross_cats_sorted":[],"title_canon_sha256":"60b87041e22cc3c74490bbf93e832f03e74497679a3599c6246308c83b9bf2fa","abstract_canon_sha256":"a332fe11a3b21adda448407ad7776d453758da4e7395b2d46eccd727734a7012"},"schema_version":"1.0"},"canonical_sha256":"eebc2895710f3d2622c9206ba112b827818a89217197c5dcac24b9c57b2e1e2d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:15.373576Z","signature_b64":"HmgJ+lkI7EpOmx8H2pIpz3eMStinhr1qi6Pi3P9ZFFmkdSDPYi0LhCgBct5afDk4cm4qWZZkLWeJBhzll+dnAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eebc2895710f3d2622c9206ba112b827818a89217197c5dcac24b9c57b2e1e2d","last_reissued_at":"2026-05-17T23:54:15.373156Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:15.373156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.00890","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":"2026-05-17T23:54:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rt1mtRw4Iofvql3rs5Gmg2qnIGgK4UztHM/t0QpaElFXGgZkTSSXUcvieyIKDwyfa9gL6OJSUq4lnb2B0ADDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:24:02.884121Z"},"content_sha256":"f818d351f6061c830d3a29a5758c8b2558e253fe7a4cacdc14a66e12235f7747","schema_version":"1.0","event_id":"sha256:f818d351f6061c830d3a29a5758c8b2558e253fe7a4cacdc14a66e12235f7747"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:526CRFLRB46SMIWJEBV2CEVYE6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Evolution of Flare Activity with Stellar Age","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Austin C. Boeck, James R. A. Davenport, Jonathan Cornet, Kevin R. Covey, Riley W. Clarke, Suzanne L. Hawley","submitted_at":"2019-01-03T19:43:58Z","abstract_excerpt":"Using a recent census of flare stars from the Kepler survey, we have explored how flare activity evolves across stellar main sequence lifetimes. We utilize a sample of 347 stars with robust flare activity detections, and which have rotation periods measured via starspot modulations in their Kepler light curves. We consider three separate methods for quantifying flare activity from optical light curves, and compare their utility for comparing flare activity between stars of differing ages and luminosities. These metrics include: the fractional luminosity emitted in flares, the specific rate of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00890","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":"2026-05-17T23:54:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZCI0pPHI94XHArp6vaJox0eYan6FidgNQFjoTMGax+iH/O46/7a//vj+PCVLWcF2HdtU17SRbd+JfNObgO+FCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:24:02.884843Z"},"content_sha256":"f908ce0a82e9249127bcc13692696f459c7630f7161d1b5ff735f9b41c7148da","schema_version":"1.0","event_id":"sha256:f908ce0a82e9249127bcc13692696f459c7630f7161d1b5ff735f9b41c7148da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/526CRFLRB46SMIWJEBV2CEVYE6/bundle.json","state_url":"https://pith.science/pith/526CRFLRB46SMIWJEBV2CEVYE6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/526CRFLRB46SMIWJEBV2CEVYE6/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":"2026-05-29T19:24:02Z","links":{"resolver":"https://pith.science/pith/526CRFLRB46SMIWJEBV2CEVYE6","bundle":"https://pith.science/pith/526CRFLRB46SMIWJEBV2CEVYE6/bundle.json","state":"https://pith.science/pith/526CRFLRB46SMIWJEBV2CEVYE6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/526CRFLRB46SMIWJEBV2CEVYE6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:526CRFLRB46SMIWJEBV2CEVYE6","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":"a332fe11a3b21adda448407ad7776d453758da4e7395b2d46eccd727734a7012","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-03T19:43:58Z","title_canon_sha256":"60b87041e22cc3c74490bbf93e832f03e74497679a3599c6246308c83b9bf2fa"},"schema_version":"1.0","source":{"id":"1901.00890","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.00890","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"arxiv_version","alias_value":"1901.00890v1","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.00890","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"pith_short_12","alias_value":"526CRFLRB46S","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"526CRFLRB46SMIWJ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"526CRFLR","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:f908ce0a82e9249127bcc13692696f459c7630f7161d1b5ff735f9b41c7148da","target":"graph","created_at":"2026-05-17T23:54:15Z","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":"Using a recent census of flare stars from the Kepler survey, we have explored how flare activity evolves across stellar main sequence lifetimes. We utilize a sample of 347 stars with robust flare activity detections, and which have rotation periods measured via starspot modulations in their Kepler light curves. We consider three separate methods for quantifying flare activity from optical light curves, and compare their utility for comparing flare activity between stars of differing ages and luminosities. These metrics include: the fractional luminosity emitted in flares, the specific rate of ","authors_text":"Austin C. Boeck, James R. A. Davenport, Jonathan Cornet, Kevin R. Covey, Riley W. Clarke, Suzanne L. Hawley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-03T19:43:58Z","title":"The Evolution of Flare Activity with Stellar Age"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.00890","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:f818d351f6061c830d3a29a5758c8b2558e253fe7a4cacdc14a66e12235f7747","target":"record","created_at":"2026-05-17T23:54:15Z","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":"a332fe11a3b21adda448407ad7776d453758da4e7395b2d46eccd727734a7012","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-03T19:43:58Z","title_canon_sha256":"60b87041e22cc3c74490bbf93e832f03e74497679a3599c6246308c83b9bf2fa"},"schema_version":"1.0","source":{"id":"1901.00890","kind":"arxiv","version":1}},"canonical_sha256":"eebc2895710f3d2622c9206ba112b827818a89217197c5dcac24b9c57b2e1e2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eebc2895710f3d2622c9206ba112b827818a89217197c5dcac24b9c57b2e1e2d","first_computed_at":"2026-05-17T23:54:15.373156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:15.373156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HmgJ+lkI7EpOmx8H2pIpz3eMStinhr1qi6Pi3P9ZFFmkdSDPYi0LhCgBct5afDk4cm4qWZZkLWeJBhzll+dnAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:15.373576Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.00890","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f818d351f6061c830d3a29a5758c8b2558e253fe7a4cacdc14a66e12235f7747","sha256:f908ce0a82e9249127bcc13692696f459c7630f7161d1b5ff735f9b41c7148da"],"state_sha256":"32b64b2238ffd472f8862acad9b276f09b8577237155c8f27f4bb6afb2a130a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q4m2Io1szlVie9CY57xVIUzVMLOD8aZ1q8a9K5KojLjd0ohJgP5TKcg5fcQCTQn2R4tb6sKEvZXK9L6Jv2rUAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T19:24:02.888790Z","bundle_sha256":"4fea3fd3a3e394f86ef35ecaaf59bef2ceb326e398cd6c5c4b9b4cd33652332b"}}