{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:IYBOZ36Y2DSFNU3I5F3LD6YNVN","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":"fdc00ec6aebedfe96ef3653ae59e55c6a9491809abbc8ec6a7d3224060f92fc1","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-11T17:00:40Z","title_canon_sha256":"2a35d16eea3b027ee9a5e7e2d28d8593812846a155572600fc4c16f9656449ba"},"schema_version":"1.0","source":{"id":"1502.03373","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03373","created_at":"2026-05-18T01:41:03Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03373v1","created_at":"2026-05-18T01:41:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03373","created_at":"2026-05-18T01:41:03Z"},{"alias_kind":"pith_short_12","alias_value":"IYBOZ36Y2DSF","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"IYBOZ36Y2DSFNU3I","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"IYBOZ36Y","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:dfa3a36eb6c6e32da342628f18df4ff7b74b94cf12c70aef9926e010fb99a5ce","target":"graph","created_at":"2026-05-18T01:41:03Z","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":"We report the discovery of 6.7 GHz methanol maser periodic flares in four massive star forming regions and the updated light curve for the known periodic source G22.357+0.066. The observations were carried out with the Torun 32 m radio telescope between June 2009 and April 2014. Flux density variations with period of 120 to 245 d were detected for some or all spectral features. A variability pattern with a fast rise and relatively slow fall on time-scale of 30-60 d dominated. A reverse pattern was observed for some features of G22.357+0.066, while sinusoidal-like variations were detected in G2","authors_text":"A. Bartkiewicz, M. Szymczak, P. Wolak","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-11T17:00:40Z","title":"Discovery of four periodic methanol masers and updated light curve for a further one"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03373","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":"sha256:5332859fce11fa8c72cd1d4760c9fd7dce7384003aafaf2e922ae3eb6d12e87d","target":"record","created_at":"2026-05-18T01:41:03Z","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":"fdc00ec6aebedfe96ef3653ae59e55c6a9491809abbc8ec6a7d3224060f92fc1","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-11T17:00:40Z","title_canon_sha256":"2a35d16eea3b027ee9a5e7e2d28d8593812846a155572600fc4c16f9656449ba"},"schema_version":"1.0","source":{"id":"1502.03373","kind":"arxiv","version":1}},"canonical_sha256":"4602ecefd8d0e456d368e976b1fb0dab706900c347c4473dc410a36d0cd2343b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4602ecefd8d0e456d368e976b1fb0dab706900c347c4473dc410a36d0cd2343b","first_computed_at":"2026-05-18T01:41:03.762194Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:03.762194Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5zI8v0zvJK903+tPNSLKsfdYUtFncl3u2VhWFpNnlEai1URuiMz5tqf64tsFqaNTQSESSSdzTS4tZz4716eSAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:03.762930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.03373","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5332859fce11fa8c72cd1d4760c9fd7dce7384003aafaf2e922ae3eb6d12e87d","sha256:dfa3a36eb6c6e32da342628f18df4ff7b74b94cf12c70aef9926e010fb99a5ce"],"state_sha256":"6158c3c5bc2917f25af41026049802f31355d9ec1300c1aac715a058db1164f9"}