{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:GCZ7XD5ZHKJRFV6EOJDUGR7UBA","short_pith_number":"pith:GCZ7XD5Z","canonical_record":{"source":{"id":"1111.6595","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-28T21:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"b4aa7316e28cc5c0a8f68cacadd386f1e37d72bec01678545a5bf9e10322e47f","abstract_canon_sha256":"d331e074fc843c3b58caa2a612557dbb8996ef8173f0ac5a429b81746d350a06"},"schema_version":"1.0"},"canonical_sha256":"30b3fb8fb93a9312d7c472474347f4080fe6b4ddf0a11fe174c064cac8f8cb59","source":{"kind":"arxiv","id":"1111.6595","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.6595","created_at":"2026-05-18T01:59:22Z"},{"alias_kind":"arxiv_version","alias_value":"1111.6595v2","created_at":"2026-05-18T01:59:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.6595","created_at":"2026-05-18T01:59:22Z"},{"alias_kind":"pith_short_12","alias_value":"GCZ7XD5ZHKJR","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"GCZ7XD5ZHKJRFV6E","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"GCZ7XD5Z","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:GCZ7XD5ZHKJRFV6EOJDUGR7UBA","target":"record","payload":{"canonical_record":{"source":{"id":"1111.6595","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-28T21:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"b4aa7316e28cc5c0a8f68cacadd386f1e37d72bec01678545a5bf9e10322e47f","abstract_canon_sha256":"d331e074fc843c3b58caa2a612557dbb8996ef8173f0ac5a429b81746d350a06"},"schema_version":"1.0"},"canonical_sha256":"30b3fb8fb93a9312d7c472474347f4080fe6b4ddf0a11fe174c064cac8f8cb59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:22.686796Z","signature_b64":"CuzKith5HvIY0K9IuBdCOkM0omQhcE3+oEjOYbvSlBvGkOwnxLOFcWQIPjI2Tb4UHtuxMRvN1O3RDHc9J6vGBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30b3fb8fb93a9312d7c472474347f4080fe6b4ddf0a11fe174c064cac8f8cb59","last_reissued_at":"2026-05-18T01:59:22.686251Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:22.686251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.6595","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:59:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hidOH67sYdpA3hrst7331eXQXMrSo+VTMrC/N48o1rsNmwsMJfgcUczCV2Ihpv7+bkD8nBUoM+t96zZxLZ4LBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:21:24.668332Z"},"content_sha256":"73b2cec18841be4b8ce34c681872cb39ad469f0f6f58c83b21c90368cbef3ffc","schema_version":"1.0","event_id":"sha256:73b2cec18841be4b8ce34c681872cb39ad469f0f6f58c83b21c90368cbef3ffc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:GCZ7XD5ZHKJRFV6EOJDUGR7UBA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FR Cnc Revisited: Photometry, Polarimetry and Spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Golovin, A. Henden, A. Sergeev, B. J. Medhi, D. Montes, E. Pavlenko, J. C. Pandey, J. R. Barnes, M. Andreev, M. C. Galvez-Ortiz, M. Hernan-Obispo, N. Karpov, P. S. Parihar, R. Martinez-Arnaiz, S. V. Zaitsev","submitted_at":"2011-11-28T21:00:08Z","abstract_excerpt":"Here we present the study of FR Cnc, a young, active and spotted star. We performed analysis of ASAS-3 (The All Sky Automated Survey) data for the years 2002-2008 and amended the value of the rotational period to be 0.826518 d. The amplitude of photometric variations decreased abruptly in the year 2005, while the mean brightness remained the same, which was interpreted as a quick redistribution of spots. BVRc and Ic broad band photometric calibration was performed for 166 stars in FR Cnc vicinity.\n  The photometry at Terskol Observatory shows two brightening episodes, one of which occurred at "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.6595","kind":"arxiv","version":2},"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":"2026-05-18T01:59:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a1ch6ChnAu+OUJXh5m9Dv9Pn8K2tbP4uxyRHqnMesI7kiDKrkAW/zeJO7HqlbLKaDoLKg259HPGpNB50e6+4Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:21:24.669026Z"},"content_sha256":"3f74586fea1f8f8e5c61df0eb455f5838fbb5ff29b591fcd40bbb94bdcdb5fd0","schema_version":"1.0","event_id":"sha256:3f74586fea1f8f8e5c61df0eb455f5838fbb5ff29b591fcd40bbb94bdcdb5fd0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA/bundle.json","state_url":"https://pith.science/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA/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":"2026-05-30T09:21:24Z","links":{"resolver":"https://pith.science/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA","bundle":"https://pith.science/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA/bundle.json","state":"https://pith.science/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GCZ7XD5ZHKJRFV6EOJDUGR7UBA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GCZ7XD5ZHKJRFV6EOJDUGR7UBA","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":"d331e074fc843c3b58caa2a612557dbb8996ef8173f0ac5a429b81746d350a06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-28T21:00:08Z","title_canon_sha256":"b4aa7316e28cc5c0a8f68cacadd386f1e37d72bec01678545a5bf9e10322e47f"},"schema_version":"1.0","source":{"id":"1111.6595","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.6595","created_at":"2026-05-18T01:59:22Z"},{"alias_kind":"arxiv_version","alias_value":"1111.6595v2","created_at":"2026-05-18T01:59:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.6595","created_at":"2026-05-18T01:59:22Z"},{"alias_kind":"pith_short_12","alias_value":"GCZ7XD5ZHKJR","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"GCZ7XD5ZHKJRFV6E","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"GCZ7XD5Z","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:3f74586fea1f8f8e5c61df0eb455f5838fbb5ff29b591fcd40bbb94bdcdb5fd0","target":"graph","created_at":"2026-05-18T01:59:22Z","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":"Here we present the study of FR Cnc, a young, active and spotted star. We performed analysis of ASAS-3 (The All Sky Automated Survey) data for the years 2002-2008 and amended the value of the rotational period to be 0.826518 d. The amplitude of photometric variations decreased abruptly in the year 2005, while the mean brightness remained the same, which was interpreted as a quick redistribution of spots. BVRc and Ic broad band photometric calibration was performed for 166 stars in FR Cnc vicinity.\n  The photometry at Terskol Observatory shows two brightening episodes, one of which occurred at ","authors_text":"A. Golovin, A. Henden, A. Sergeev, B. J. Medhi, D. Montes, E. Pavlenko, J. C. Pandey, J. R. Barnes, M. Andreev, M. C. Galvez-Ortiz, M. Hernan-Obispo, N. Karpov, P. S. Parihar, R. Martinez-Arnaiz, S. V. Zaitsev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-28T21:00:08Z","title":"FR Cnc Revisited: Photometry, Polarimetry and Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.6595","kind":"arxiv","version":2},"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":"sha256:73b2cec18841be4b8ce34c681872cb39ad469f0f6f58c83b21c90368cbef3ffc","target":"record","created_at":"2026-05-18T01:59:22Z","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":"d331e074fc843c3b58caa2a612557dbb8996ef8173f0ac5a429b81746d350a06","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-28T21:00:08Z","title_canon_sha256":"b4aa7316e28cc5c0a8f68cacadd386f1e37d72bec01678545a5bf9e10322e47f"},"schema_version":"1.0","source":{"id":"1111.6595","kind":"arxiv","version":2}},"canonical_sha256":"30b3fb8fb93a9312d7c472474347f4080fe6b4ddf0a11fe174c064cac8f8cb59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30b3fb8fb93a9312d7c472474347f4080fe6b4ddf0a11fe174c064cac8f8cb59","first_computed_at":"2026-05-18T01:59:22.686251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:22.686251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CuzKith5HvIY0K9IuBdCOkM0omQhcE3+oEjOYbvSlBvGkOwnxLOFcWQIPjI2Tb4UHtuxMRvN1O3RDHc9J6vGBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:22.686796Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.6595","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73b2cec18841be4b8ce34c681872cb39ad469f0f6f58c83b21c90368cbef3ffc","sha256:3f74586fea1f8f8e5c61df0eb455f5838fbb5ff29b591fcd40bbb94bdcdb5fd0"],"state_sha256":"f37be6b60cbdd43c36df6b54653cdc80c3e5ca0b7ad23b3e57a3794a9deda69c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6/KltSKDMvRI2t/9/FjkcFypqVWOX49ykRtw5ERdCqoxhWYOEJemA8/KajHgISoQPbWEBNODCnbJ3rUtCBujAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:21:24.672559Z","bundle_sha256":"787be0dc579d82a0debaba7a31ab9ff5c03751d7944b99c9513ae6b95e5a6196"}}