{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:7VH4CAPW7QRV5YRRKKZG5XK4WK","short_pith_number":"pith:7VH4CAPW","canonical_record":{"source":{"id":"1303.2245","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-09T18:04:55Z","cross_cats_sorted":[],"title_canon_sha256":"aaa465f73dae61c694bf519a766f171002051eeec0a7fb9040216c2955f3c454","abstract_canon_sha256":"c098459b5df858029ef06c805cb47ada5289d317420773d25313eb6897147001"},"schema_version":"1.0"},"canonical_sha256":"fd4fc101f6fc235ee23152b26edd5cb2b18b37c1a1640417513f71b377bd82fb","source":{"kind":"arxiv","id":"1303.2245","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2245","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2245v1","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2245","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"pith_short_12","alias_value":"7VH4CAPW7QRV","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"7VH4CAPW7QRV5YRR","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"7VH4CAPW","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:7VH4CAPW7QRV5YRRKKZG5XK4WK","target":"record","payload":{"canonical_record":{"source":{"id":"1303.2245","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-09T18:04:55Z","cross_cats_sorted":[],"title_canon_sha256":"aaa465f73dae61c694bf519a766f171002051eeec0a7fb9040216c2955f3c454","abstract_canon_sha256":"c098459b5df858029ef06c805cb47ada5289d317420773d25313eb6897147001"},"schema_version":"1.0"},"canonical_sha256":"fd4fc101f6fc235ee23152b26edd5cb2b18b37c1a1640417513f71b377bd82fb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:09.309531Z","signature_b64":"K7UK0kyaMYAOzc9BaMa/hOG3P0nANT8alFeNRBJzHWiJ8BVoySQ3154vV7xDSAteLB4k3qVmKqA2rlHqsu+PBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd4fc101f6fc235ee23152b26edd5cb2b18b37c1a1640417513f71b377bd82fb","last_reissued_at":"2026-05-18T01:51:09.308845Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:09.308845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.2245","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":"2026-05-18T01:51:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ns/Ab+K0bB56DjHUNac2UW1L4RrWMSu2a0uwVR/dI387X8WFF282gotSL7IHJUaw6xStLm79HbNZYqoM9EkHAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T07:13:31.638103Z"},"content_sha256":"d518344393b20323067a8542024d85ebaed273af1f26bab943e9ab6b804bdc3c","schema_version":"1.0","event_id":"sha256:d518344393b20323067a8542024d85ebaed273af1f26bab943e9ab6b804bdc3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:7VH4CAPW7QRV5YRRKKZG5XK4WK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The place of the Sun among the Sun-like stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. I. Shapiro, E. Rozanov, G. Cessateur, W. Schmutz","submitted_at":"2013-03-09T18:04:55Z","abstract_excerpt":"Context. Monitoring of the photometric and chromospheric HK emission data series of stars similar to the Sun in age and average activity level showed that there is an empirical correlation between the average stellar chromospheric activity level and the photometric variability. In general, more active stars show larger photometric variability. Interestingly, the measurements and reconstructions of the solar irradiance show that the Sun is significantly less variable than indicated by the empirical relationship. Aims. We aim to identify possible reasons for the Sun to be currently outside of th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2245","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":"2026-05-18T01:51:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c0P7++AEFny+L7tZl5euq5CxPdwfMwQwGt29ryZMQxC6R12VID0EBSdk2lRoRS/Gq00iyBG/3G1NOBGn2lleAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T07:13:31.638700Z"},"content_sha256":"b2676727de1b284bad59fbcaad97cc7384b180af78593957ed47c3b6b4b9576a","schema_version":"1.0","event_id":"sha256:b2676727de1b284bad59fbcaad97cc7384b180af78593957ed47c3b6b4b9576a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK/bundle.json","state_url":"https://pith.science/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK/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":"2026-06-04T07:13:31Z","links":{"resolver":"https://pith.science/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK","bundle":"https://pith.science/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK/bundle.json","state":"https://pith.science/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7VH4CAPW7QRV5YRRKKZG5XK4WK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:7VH4CAPW7QRV5YRRKKZG5XK4WK","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":"c098459b5df858029ef06c805cb47ada5289d317420773d25313eb6897147001","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-09T18:04:55Z","title_canon_sha256":"aaa465f73dae61c694bf519a766f171002051eeec0a7fb9040216c2955f3c454"},"schema_version":"1.0","source":{"id":"1303.2245","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2245","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2245v1","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2245","created_at":"2026-05-18T01:51:09Z"},{"alias_kind":"pith_short_12","alias_value":"7VH4CAPW7QRV","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"7VH4CAPW7QRV5YRR","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"7VH4CAPW","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:b2676727de1b284bad59fbcaad97cc7384b180af78593957ed47c3b6b4b9576a","target":"graph","created_at":"2026-05-18T01:51:09Z","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":"Context. Monitoring of the photometric and chromospheric HK emission data series of stars similar to the Sun in age and average activity level showed that there is an empirical correlation between the average stellar chromospheric activity level and the photometric variability. In general, more active stars show larger photometric variability. Interestingly, the measurements and reconstructions of the solar irradiance show that the Sun is significantly less variable than indicated by the empirical relationship. Aims. We aim to identify possible reasons for the Sun to be currently outside of th","authors_text":"A. I. Shapiro, E. Rozanov, G. Cessateur, W. Schmutz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-09T18:04:55Z","title":"The place of the Sun among the Sun-like stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2245","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:d518344393b20323067a8542024d85ebaed273af1f26bab943e9ab6b804bdc3c","target":"record","created_at":"2026-05-18T01:51:09Z","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":"c098459b5df858029ef06c805cb47ada5289d317420773d25313eb6897147001","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-03-09T18:04:55Z","title_canon_sha256":"aaa465f73dae61c694bf519a766f171002051eeec0a7fb9040216c2955f3c454"},"schema_version":"1.0","source":{"id":"1303.2245","kind":"arxiv","version":1}},"canonical_sha256":"fd4fc101f6fc235ee23152b26edd5cb2b18b37c1a1640417513f71b377bd82fb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd4fc101f6fc235ee23152b26edd5cb2b18b37c1a1640417513f71b377bd82fb","first_computed_at":"2026-05-18T01:51:09.308845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:09.308845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K7UK0kyaMYAOzc9BaMa/hOG3P0nANT8alFeNRBJzHWiJ8BVoySQ3154vV7xDSAteLB4k3qVmKqA2rlHqsu+PBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:09.309531Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.2245","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d518344393b20323067a8542024d85ebaed273af1f26bab943e9ab6b804bdc3c","sha256:b2676727de1b284bad59fbcaad97cc7384b180af78593957ed47c3b6b4b9576a"],"state_sha256":"a0622e7b0aa694269200136474c8f84e2adbba49d54758c83a5037b73b818707"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FVgOZJyww6O72vWq9S6sogw0D0i8JS9qdxHtHiy1QSqmdD2CO8Lj8QhGolRCPpULyW+UxikmVMbtVO95q8TvCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T07:13:31.642184Z","bundle_sha256":"db242fda155a39b07c7e06976b9011c663a0077dcfda0be824c3bb83d8a6e127"}}