{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:IBLKABOBW7CIDGVTHON3ZIPCVP","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":"7e7e97b798a8ee46bd914d47878817e5583f819049218f84b401d8b5d531f15a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-06-09T05:45:05Z","title_canon_sha256":"870fc32ff6839b9cf407b72bb8b95e126494ecc57ac75f3b104ddba96c96acc6"},"schema_version":"1.0","source":{"id":"2106.04821","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.04821","created_at":"2026-07-05T05:47:55Z"},{"alias_kind":"arxiv_version","alias_value":"2106.04821v1","created_at":"2026-07-05T05:47:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.04821","created_at":"2026-07-05T05:47:55Z"},{"alias_kind":"pith_short_12","alias_value":"IBLKABOBW7CI","created_at":"2026-07-05T05:47:55Z"},{"alias_kind":"pith_short_16","alias_value":"IBLKABOBW7CIDGVT","created_at":"2026-07-05T05:47:55Z"},{"alias_kind":"pith_short_8","alias_value":"IBLKABOB","created_at":"2026-07-05T05:47:55Z"}],"graph_snapshots":[{"event_id":"sha256:8cd6366494b4cfa2b6ad47baaa94fffc112983f9a1f25f908c8435cc9a91fd07","target":"graph","created_at":"2026-07-05T05:47:55Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.04821/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Magnetars have been proposed to be the origin of FRBs soon after its initial discovery. The detection of the first Galactic FRB 20200428 from SGR 1935+2154 has made this hypothesis more convincing. In October 2020, this source was supposed to be in an extremely active state again. We then carried out a 1.6-hours follow-up observation of SGR 1935+2154 using the new ultra-wideband low (UWL) receiver of the Parkes 64\\,m radio telescope covering a frequency range of 704$-$4032 MHz. However, no convincing signal was detected in either of our single pulse or periodicity searches. We obtained a limit","authors_text":"Shi Dai, Songbo Zhang, Xuefeng Wu, Ye Li, Zhenfan Tang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-06-09T05:45:05Z","title":"Searching for radio pulsation from SGR 1935+2154 with the Parkes Ultra-Wideband Low receiver"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.04821","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:d98882a38cc6ca88ade742df95ace68145d8c1186d8fc6d4ae2e19d858a885e6","target":"record","created_at":"2026-07-05T05:47:55Z","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":"7e7e97b798a8ee46bd914d47878817e5583f819049218f84b401d8b5d531f15a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-06-09T05:45:05Z","title_canon_sha256":"870fc32ff6839b9cf407b72bb8b95e126494ecc57ac75f3b104ddba96c96acc6"},"schema_version":"1.0","source":{"id":"2106.04821","kind":"arxiv","version":1}},"canonical_sha256":"4056a005c1b7c4819ab33b9bbca1e2abf4ac936db9b67b34d52a038ada009457","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4056a005c1b7c4819ab33b9bbca1e2abf4ac936db9b67b34d52a038ada009457","first_computed_at":"2026-07-05T05:47:55.338497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:47:55.338497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WkIiBTR/e37zLEiEgQts7BnV1NvqUtfP4eYnVeao8lDzbEShdRUYYf1a1dIlrvv2ld54kk/y/yZQDFnIzt60AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:47:55.338897Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.04821","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d98882a38cc6ca88ade742df95ace68145d8c1186d8fc6d4ae2e19d858a885e6","sha256:8cd6366494b4cfa2b6ad47baaa94fffc112983f9a1f25f908c8435cc9a91fd07"],"state_sha256":"7fe2c4ebc31a674459463f445eb6dced97a63b7f4f5e4c61b752393f57c0ce91"}