{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:ATZEZKD6KJ6YBHZ4SRCNLZLHMH","short_pith_number":"pith:ATZEZKD6","canonical_record":{"source":{"id":"1503.05695","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-19T10:26:19Z","cross_cats_sorted":[],"title_canon_sha256":"63faafe6d57283f3506b951a2dfff718df13f26ae8debe253b37cd677293a250","abstract_canon_sha256":"4e61d3412000a680c61a93a2c300bc532e9795f75bc3f4e5506d21100df8e061"},"schema_version":"1.0"},"canonical_sha256":"04f24ca87e527d809f3c9444d5e56761f2fc9f87f74079a42031054948dc0b4f","source":{"kind":"arxiv","id":"1503.05695","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.05695","created_at":"2026-05-18T02:20:58Z"},{"alias_kind":"arxiv_version","alias_value":"1503.05695v1","created_at":"2026-05-18T02:20:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05695","created_at":"2026-05-18T02:20:58Z"},{"alias_kind":"pith_short_12","alias_value":"ATZEZKD6KJ6Y","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"ATZEZKD6KJ6YBHZ4","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"ATZEZKD6","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:ATZEZKD6KJ6YBHZ4SRCNLZLHMH","target":"record","payload":{"canonical_record":{"source":{"id":"1503.05695","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-19T10:26:19Z","cross_cats_sorted":[],"title_canon_sha256":"63faafe6d57283f3506b951a2dfff718df13f26ae8debe253b37cd677293a250","abstract_canon_sha256":"4e61d3412000a680c61a93a2c300bc532e9795f75bc3f4e5506d21100df8e061"},"schema_version":"1.0"},"canonical_sha256":"04f24ca87e527d809f3c9444d5e56761f2fc9f87f74079a42031054948dc0b4f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:20:58.358897Z","signature_b64":"b73HY0dVuA0eiTo2WWRO00lpZ3ZN33MXSfhE2FCkL001osWdbtiNNmGE68jbklrwSDL5zNN83cBrSL3HEHbiAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04f24ca87e527d809f3c9444d5e56761f2fc9f87f74079a42031054948dc0b4f","last_reissued_at":"2026-05-18T02:20:58.358173Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:20:58.358173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.05695","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":"2026-05-18T02:20:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"11AYQmsK8m5M0dcInYXnnRmKPiYS91HLFP+g77j8mjO9GTbW3D4FN3Frs7sJnKMBoe9u3vIk7XBpkYfPXyDPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:42:46.288228Z"},"content_sha256":"af7cad9fbfaf3949333088a8daf4cc7e11d826d6473cdffb67db1b443d8e4eed","schema_version":"1.0","event_id":"sha256:af7cad9fbfaf3949333088a8daf4cc7e11d826d6473cdffb67db1b443d8e4eed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:ATZEZKD6KJ6YBHZ4SRCNLZLHMH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Preliminary study of the moderately cool chemically peculiar star BS Circini","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Jan Janik, Jiri Krticka, Miloslav Zejda, Miroslav Jagelka, Zdenek Mikulasek","submitted_at":"2015-03-19T10:26:19Z","abstract_excerpt":"BS Cir is a representative of moderately cool magnetic chemically peculiar stars which displays very strong light variations in Stroemgren index c1 indicating large changes in the height of the Balmer jump. We present two-spot model of light variations fitting successfully all of nine light curves obtained in the spectral region 335-750 nm. We also discuss the nature of the observed variations of intensities of Fe, Cr, Ti, Si, Mg and RE spectral lines and possible mechanisms matching the observed light variations. It was confirmed that the observed period of BS Cir 2.204 d is rising with the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05695","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":"2026-05-18T02:20:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w4YoeBuT60rsEagiH+pW7iAOMWxqrTFrsyxvr4ecuXDD25JcsRdyOXhWVFe85YT54jxAo5s9cWlPApz+9JdhBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T05:42:46.288618Z"},"content_sha256":"c8af9347c2cbe3322863e782112dd5a682a6c5a7d0f6ac82edcf1058d0e2bdbe","schema_version":"1.0","event_id":"sha256:c8af9347c2cbe3322863e782112dd5a682a6c5a7d0f6ac82edcf1058d0e2bdbe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH/bundle.json","state_url":"https://pith.science/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH/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":"2026-06-01T05:42:46Z","links":{"resolver":"https://pith.science/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH","bundle":"https://pith.science/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH/bundle.json","state":"https://pith.science/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATZEZKD6KJ6YBHZ4SRCNLZLHMH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ATZEZKD6KJ6YBHZ4SRCNLZLHMH","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":"4e61d3412000a680c61a93a2c300bc532e9795f75bc3f4e5506d21100df8e061","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-19T10:26:19Z","title_canon_sha256":"63faafe6d57283f3506b951a2dfff718df13f26ae8debe253b37cd677293a250"},"schema_version":"1.0","source":{"id":"1503.05695","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.05695","created_at":"2026-05-18T02:20:58Z"},{"alias_kind":"arxiv_version","alias_value":"1503.05695v1","created_at":"2026-05-18T02:20:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05695","created_at":"2026-05-18T02:20:58Z"},{"alias_kind":"pith_short_12","alias_value":"ATZEZKD6KJ6Y","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"ATZEZKD6KJ6YBHZ4","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"ATZEZKD6","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:c8af9347c2cbe3322863e782112dd5a682a6c5a7d0f6ac82edcf1058d0e2bdbe","target":"graph","created_at":"2026-05-18T02:20:58Z","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":"BS Cir is a representative of moderately cool magnetic chemically peculiar stars which displays very strong light variations in Stroemgren index c1 indicating large changes in the height of the Balmer jump. We present two-spot model of light variations fitting successfully all of nine light curves obtained in the spectral region 335-750 nm. We also discuss the nature of the observed variations of intensities of Fe, Cr, Ti, Si, Mg and RE spectral lines and possible mechanisms matching the observed light variations. It was confirmed that the observed period of BS Cir 2.204 d is rising with the r","authors_text":"Jan Janik, Jiri Krticka, Miloslav Zejda, Miroslav Jagelka, Zdenek Mikulasek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-19T10:26:19Z","title":"Preliminary study of the moderately cool chemically peculiar star BS Circini"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05695","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:af7cad9fbfaf3949333088a8daf4cc7e11d826d6473cdffb67db1b443d8e4eed","target":"record","created_at":"2026-05-18T02:20:58Z","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":"4e61d3412000a680c61a93a2c300bc532e9795f75bc3f4e5506d21100df8e061","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-03-19T10:26:19Z","title_canon_sha256":"63faafe6d57283f3506b951a2dfff718df13f26ae8debe253b37cd677293a250"},"schema_version":"1.0","source":{"id":"1503.05695","kind":"arxiv","version":1}},"canonical_sha256":"04f24ca87e527d809f3c9444d5e56761f2fc9f87f74079a42031054948dc0b4f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04f24ca87e527d809f3c9444d5e56761f2fc9f87f74079a42031054948dc0b4f","first_computed_at":"2026-05-18T02:20:58.358173Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:20:58.358173Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b73HY0dVuA0eiTo2WWRO00lpZ3ZN33MXSfhE2FCkL001osWdbtiNNmGE68jbklrwSDL5zNN83cBrSL3HEHbiAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:20:58.358897Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.05695","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af7cad9fbfaf3949333088a8daf4cc7e11d826d6473cdffb67db1b443d8e4eed","sha256:c8af9347c2cbe3322863e782112dd5a682a6c5a7d0f6ac82edcf1058d0e2bdbe"],"state_sha256":"8f2aa47b1b77a6fa9f508c4511a1574d33aa6ecb5d4a83ad4a2e9a500399c8c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6CAdkbWJjV0yD2HJ1zZ5Da1Ewz0uOh53kqeampdxgJxxgjASsovGHQEksVZlocJAd2niib+ef919kwNAv2GVBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T05:42:46.290605Z","bundle_sha256":"ff8ab8470f928a65203d6338bcbeb4b1f38ce7da4322dc19c1ff55b30e407880"}}