{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NFIYSOQV4CPMEWZGSGU55KATHQ","short_pith_number":"pith:NFIYSOQV","canonical_record":{"source":{"id":"1701.03557","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-13T04:02:04Z","cross_cats_sorted":[],"title_canon_sha256":"9ebf6592a8a132aed4893c413fbeda85cac252b1fdf15bff01909a3282f415f8","abstract_canon_sha256":"868c6c489603aa0bbc8bbabd5cb7c6a26abe9bfd43739a9a2cb5856befc648ce"},"schema_version":"1.0"},"canonical_sha256":"6951893a15e09ec25b2691a9dea8133c17560ecd90cb56270c40793a660879fd","source":{"kind":"arxiv","id":"1701.03557","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.03557","created_at":"2026-05-18T00:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"1701.03557v1","created_at":"2026-05-18T00:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.03557","created_at":"2026-05-18T00:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"NFIYSOQV4CPM","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NFIYSOQV4CPMEWZG","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NFIYSOQV","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NFIYSOQV4CPMEWZGSGU55KATHQ","target":"record","payload":{"canonical_record":{"source":{"id":"1701.03557","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-13T04:02:04Z","cross_cats_sorted":[],"title_canon_sha256":"9ebf6592a8a132aed4893c413fbeda85cac252b1fdf15bff01909a3282f415f8","abstract_canon_sha256":"868c6c489603aa0bbc8bbabd5cb7c6a26abe9bfd43739a9a2cb5856befc648ce"},"schema_version":"1.0"},"canonical_sha256":"6951893a15e09ec25b2691a9dea8133c17560ecd90cb56270c40793a660879fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:43.789741Z","signature_b64":"qBdyluh6S4gAN+YFz/QqoPOSWZ0fkLNt0JYU9DcqEgnlMdWTOTZi8vkQ1R4tNdbTg9TgGKBOiH5N65FpNcOfBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6951893a15e09ec25b2691a9dea8133c17560ecd90cb56270c40793a660879fd","last_reissued_at":"2026-05-18T00:50:43.789055Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:43.789055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.03557","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":"2026-05-18T00:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QVaIw3uI3AtHMgjhPWmk6b0mL91+JgKfI9C+awFn5VcQiBGsSm4Am4Lytvdm7Rsffv4UlWq9HTUQc+clxkJVBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:44:22.736572Z"},"content_sha256":"e461ce12aa44606c06eff207fa4622bf5fa9d4da96bbfe85e3166b62fc1e9c37","schema_version":"1.0","event_id":"sha256:e461ce12aa44606c06eff207fa4622bf5fa9d4da96bbfe85e3166b62fc1e9c37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NFIYSOQV4CPMEWZGSGU55KATHQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Matched Filter Technique For Slow Radio Transient Detection And First Demonstration With The Murchison Widefield Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. A. Deshpande, A. Williams, B. J. Hazelton, B. M. Gaensler, C. J. Lonsdale, C. L. Williams, D. A. Mitchell, D. L. Kaplan, D. Oberoi, E. Morgan, F. Briggs, G. Bernardi, J. D. Bowman, J. N. Hewitt, K. S. Srivani, L. Feng, L. J. Greenhill, M. F. Morales, M. Johnston-Hollitt, N. Kudryavtseva, N. Udaya Shankar, P. Hancock, R. B. Wayth, R. J. Cappallo, R. L. Webster, R. Remillard, R. Subrahmanyan, R. Vaulin, S. J. Tingay, S. M. Ord, S. R. McWhirter, Tara Murphy, T. Prabu","submitted_at":"2017-01-13T04:02:04Z","abstract_excerpt":"Many astronomical sources produce transient phenomena at radio frequencies, but the transient sky at low frequencies (<300 MHz) remains relatively unexplored. Blind surveys with new widefield radio instruments are setting increasingly stringent limits on the transient surface density on various timescales. Although many of these instruments are limited by classical confusion noise from an ensemble of faint, unresolved sources, one can in principle detect transients below the classical confusion limit to the extent that the classical confusion noise is independent of time. We develop a techniqu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.03557","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":"2026-05-18T00:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AO6gYrN0Py8sIsBtf1W/PC730kUjcNNqGDGLFyERktF3MjwHFk55q9RvgNiVQ2OvLFTQMnAQU9w3Vys1A2zDBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:44:22.736934Z"},"content_sha256":"a96254e3ae59925133ad3fb424e1c8c80f2773a9a03061efb3609c7162611242","schema_version":"1.0","event_id":"sha256:a96254e3ae59925133ad3fb424e1c8c80f2773a9a03061efb3609c7162611242"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFIYSOQV4CPMEWZGSGU55KATHQ/bundle.json","state_url":"https://pith.science/pith/NFIYSOQV4CPMEWZGSGU55KATHQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFIYSOQV4CPMEWZGSGU55KATHQ/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":"2026-05-26T13:44:22Z","links":{"resolver":"https://pith.science/pith/NFIYSOQV4CPMEWZGSGU55KATHQ","bundle":"https://pith.science/pith/NFIYSOQV4CPMEWZGSGU55KATHQ/bundle.json","state":"https://pith.science/pith/NFIYSOQV4CPMEWZGSGU55KATHQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFIYSOQV4CPMEWZGSGU55KATHQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NFIYSOQV4CPMEWZGSGU55KATHQ","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":"868c6c489603aa0bbc8bbabd5cb7c6a26abe9bfd43739a9a2cb5856befc648ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-13T04:02:04Z","title_canon_sha256":"9ebf6592a8a132aed4893c413fbeda85cac252b1fdf15bff01909a3282f415f8"},"schema_version":"1.0","source":{"id":"1701.03557","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.03557","created_at":"2026-05-18T00:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"1701.03557v1","created_at":"2026-05-18T00:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.03557","created_at":"2026-05-18T00:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"NFIYSOQV4CPM","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"NFIYSOQV4CPMEWZG","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"NFIYSOQV","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:a96254e3ae59925133ad3fb424e1c8c80f2773a9a03061efb3609c7162611242","target":"graph","created_at":"2026-05-18T00:50:43Z","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":"Many astronomical sources produce transient phenomena at radio frequencies, but the transient sky at low frequencies (<300 MHz) remains relatively unexplored. Blind surveys with new widefield radio instruments are setting increasingly stringent limits on the transient surface density on various timescales. Although many of these instruments are limited by classical confusion noise from an ensemble of faint, unresolved sources, one can in principle detect transients below the classical confusion limit to the extent that the classical confusion noise is independent of time. We develop a techniqu","authors_text":"A. A. Deshpande, A. Williams, B. J. Hazelton, B. M. Gaensler, C. J. Lonsdale, C. L. Williams, D. A. Mitchell, D. L. Kaplan, D. Oberoi, E. Morgan, F. Briggs, G. Bernardi, J. D. Bowman, J. N. Hewitt, K. S. Srivani, L. Feng, L. J. Greenhill, M. F. Morales, M. Johnston-Hollitt, N. Kudryavtseva, N. Udaya Shankar, P. Hancock, R. B. Wayth, R. J. Cappallo, R. L. Webster, R. Remillard, R. Subrahmanyan, R. Vaulin, S. J. Tingay, S. M. Ord, S. R. McWhirter, Tara Murphy, T. Prabu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-13T04:02:04Z","title":"A Matched Filter Technique For Slow Radio Transient Detection And First Demonstration With The Murchison Widefield Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.03557","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:e461ce12aa44606c06eff207fa4622bf5fa9d4da96bbfe85e3166b62fc1e9c37","target":"record","created_at":"2026-05-18T00:50:43Z","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":"868c6c489603aa0bbc8bbabd5cb7c6a26abe9bfd43739a9a2cb5856befc648ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-13T04:02:04Z","title_canon_sha256":"9ebf6592a8a132aed4893c413fbeda85cac252b1fdf15bff01909a3282f415f8"},"schema_version":"1.0","source":{"id":"1701.03557","kind":"arxiv","version":1}},"canonical_sha256":"6951893a15e09ec25b2691a9dea8133c17560ecd90cb56270c40793a660879fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6951893a15e09ec25b2691a9dea8133c17560ecd90cb56270c40793a660879fd","first_computed_at":"2026-05-18T00:50:43.789055Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:43.789055Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qBdyluh6S4gAN+YFz/QqoPOSWZ0fkLNt0JYU9DcqEgnlMdWTOTZi8vkQ1R4tNdbTg9TgGKBOiH5N65FpNcOfBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:43.789741Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.03557","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e461ce12aa44606c06eff207fa4622bf5fa9d4da96bbfe85e3166b62fc1e9c37","sha256:a96254e3ae59925133ad3fb424e1c8c80f2773a9a03061efb3609c7162611242"],"state_sha256":"848d91d82597173cb853cceef675413c38cc126a5b54c684001f33c2d23b05ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Z10eqvxTic9vgaaXUVqtDsufOe0IDXM3ShhnSjYhDy9j1KjVRx3mYwqT1bQwn78W+jdYuCXoGWbhldY0wQ9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T13:44:22.739412Z","bundle_sha256":"9234325d285c1ac97bbc11eeba2a8690fc502e2a909780bcf615103878aa4529"}}