{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:KSHD6ORSDEXS3WRIQVX3XVZUAK","short_pith_number":"pith:KSHD6ORS","canonical_record":{"source":{"id":"2004.09118","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-20T08:21:40Z","cross_cats_sorted":[],"title_canon_sha256":"40a4d4c27ae516313b6ba7bb0e842ab602b76692f2c5f064c92a6397d90bf429","abstract_canon_sha256":"f41d6b9877b398fe32e53e68f8d836cc1696d920d1c58381d954381b7b50d7e3"},"schema_version":"1.0"},"canonical_sha256":"548e3f3a32192f2dda28856fbbd73402ac5a9cca0ba57776afe7abe77618fb6b","source":{"kind":"arxiv","id":"2004.09118","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.09118","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"arxiv_version","alias_value":"2004.09118v1","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.09118","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"pith_short_12","alias_value":"KSHD6ORSDEXS","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"pith_short_16","alias_value":"KSHD6ORSDEXS3WRI","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"pith_short_8","alias_value":"KSHD6ORS","created_at":"2026-07-05T01:15:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:KSHD6ORSDEXS3WRIQVX3XVZUAK","target":"record","payload":{"canonical_record":{"source":{"id":"2004.09118","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-20T08:21:40Z","cross_cats_sorted":[],"title_canon_sha256":"40a4d4c27ae516313b6ba7bb0e842ab602b76692f2c5f064c92a6397d90bf429","abstract_canon_sha256":"f41d6b9877b398fe32e53e68f8d836cc1696d920d1c58381d954381b7b50d7e3"},"schema_version":"1.0"},"canonical_sha256":"548e3f3a32192f2dda28856fbbd73402ac5a9cca0ba57776afe7abe77618fb6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:15:17.165115Z","signature_b64":"k0WbC6xH/ZG9H1ZKskpTIeWoyLVLtW0ERVie7fH8gn05qJc7Zv1dGz0g2fnKc6pElVcue4jJzqIoGMYdyFGUCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"548e3f3a32192f2dda28856fbbd73402ac5a9cca0ba57776afe7abe77618fb6b","last_reissued_at":"2026-07-05T01:15:17.164677Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:15:17.164677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.09118","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":"2026-07-05T01:15:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OF05XFAMpWjIK7Pa2YN3z03CHdDUCPmJkjao6WurYcn+USF4+gPxZVBem9UpB8QtY1HKVZQrqoUtUHWrHX7PBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T04:38:59.441288Z"},"content_sha256":"79840c47fef82e398c026a31fbb753841ed54b8bdf5163719ea66486e684427f","schema_version":"1.0","event_id":"sha256:79840c47fef82e398c026a31fbb753841ed54b8bdf5163719ea66486e684427f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:KSHD6ORSDEXS3WRIQVX3XVZUAK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The life cycle of radio galaxies in the LOFAR Lockman Hole field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"B. Mingo, C. Tasse, H. J. A. R\\\"ottgering, I. Prandoni, J. Sabater, K. J. Duncan, M. Brienza, M. J. Hardcastle, N. Jurlin, N. Maddox, P. N. Best, R. Morganti, S. Mandal, S. S. Shabala, T. W. Shimwell, V. Mahatma","submitted_at":"2020-04-20T08:21:40Z","abstract_excerpt":"Radio galaxies are known to go through cycles of activity, where phases of apparent quiescence can be followed by repeated activity of the central supermassive black hole. A better understanding of this cycle is crucial for ascertaining the energetic impact that the jets have on the host galaxy, but little is known about it. We used deep LOFAR images at 150 MHz of the Lockman Hole extragalactic field to select a sample of 158 radio sources with sizes $> 60^{\\prime\\prime}$ in different phases of their jet life cycle. Using a variety of criteria (e.g. core prominence combined with low-surface br"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.09118","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.09118/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:15:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ibennABiBOkRf2FEEFv3yFUzjs+2yTh5ql7r4a7KX2xcoZfPLqYip9VOedaWWdLcmC8NbgT9wqnJzHleKhd5Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T04:38:59.442006Z"},"content_sha256":"aac358718a4ff83e1e7e7131b8b78940575ff7df05090052987601db6e13de40","schema_version":"1.0","event_id":"sha256:aac358718a4ff83e1e7e7131b8b78940575ff7df05090052987601db6e13de40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK/bundle.json","state_url":"https://pith.science/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK/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":"2026-08-19T04:38:59Z","links":{"resolver":"https://pith.science/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK","bundle":"https://pith.science/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK/bundle.json","state":"https://pith.science/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KSHD6ORSDEXS3WRIQVX3XVZUAK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:KSHD6ORSDEXS3WRIQVX3XVZUAK","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":"f41d6b9877b398fe32e53e68f8d836cc1696d920d1c58381d954381b7b50d7e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-20T08:21:40Z","title_canon_sha256":"40a4d4c27ae516313b6ba7bb0e842ab602b76692f2c5f064c92a6397d90bf429"},"schema_version":"1.0","source":{"id":"2004.09118","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.09118","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"arxiv_version","alias_value":"2004.09118v1","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.09118","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"pith_short_12","alias_value":"KSHD6ORSDEXS","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"pith_short_16","alias_value":"KSHD6ORSDEXS3WRI","created_at":"2026-07-05T01:15:17Z"},{"alias_kind":"pith_short_8","alias_value":"KSHD6ORS","created_at":"2026-07-05T01:15:17Z"}],"graph_snapshots":[{"event_id":"sha256:aac358718a4ff83e1e7e7131b8b78940575ff7df05090052987601db6e13de40","target":"graph","created_at":"2026-07-05T01:15:17Z","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/2004.09118/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Radio galaxies are known to go through cycles of activity, where phases of apparent quiescence can be followed by repeated activity of the central supermassive black hole. A better understanding of this cycle is crucial for ascertaining the energetic impact that the jets have on the host galaxy, but little is known about it. We used deep LOFAR images at 150 MHz of the Lockman Hole extragalactic field to select a sample of 158 radio sources with sizes $> 60^{\\prime\\prime}$ in different phases of their jet life cycle. Using a variety of criteria (e.g. core prominence combined with low-surface br","authors_text":"B. Mingo, C. Tasse, H. J. A. R\\\"ottgering, I. Prandoni, J. Sabater, K. J. Duncan, M. Brienza, M. J. Hardcastle, N. Jurlin, N. Maddox, P. N. Best, R. Morganti, S. Mandal, S. S. Shabala, T. W. Shimwell, V. Mahatma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-20T08:21:40Z","title":"The life cycle of radio galaxies in the LOFAR Lockman Hole field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.09118","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":"sha256:79840c47fef82e398c026a31fbb753841ed54b8bdf5163719ea66486e684427f","target":"record","created_at":"2026-07-05T01:15:17Z","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":"f41d6b9877b398fe32e53e68f8d836cc1696d920d1c58381d954381b7b50d7e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-20T08:21:40Z","title_canon_sha256":"40a4d4c27ae516313b6ba7bb0e842ab602b76692f2c5f064c92a6397d90bf429"},"schema_version":"1.0","source":{"id":"2004.09118","kind":"arxiv","version":1}},"canonical_sha256":"548e3f3a32192f2dda28856fbbd73402ac5a9cca0ba57776afe7abe77618fb6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"548e3f3a32192f2dda28856fbbd73402ac5a9cca0ba57776afe7abe77618fb6b","first_computed_at":"2026-07-05T01:15:17.164677Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:15:17.164677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k0WbC6xH/ZG9H1ZKskpTIeWoyLVLtW0ERVie7fH8gn05qJc7Zv1dGz0g2fnKc6pElVcue4jJzqIoGMYdyFGUCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:15:17.165115Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.09118","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79840c47fef82e398c026a31fbb753841ed54b8bdf5163719ea66486e684427f","sha256:aac358718a4ff83e1e7e7131b8b78940575ff7df05090052987601db6e13de40"],"state_sha256":"6f3140a581a9af7a1d9242299d6823422d24ff6e6fdeb0646ccf420444a8aded"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nNWlmJl5Zet8tmpK5cUzZ0ihcoy6WoxYuaQTHsuOrZE3MocFflCosyljo3AXr7eJ1ISARFFkAlsmD7hc8TNHAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T04:38:59.447379Z","bundle_sha256":"291d840841e9eebfb1dbdcc86e4599f3c128f2fc7e7fe212fd89fdf88b9723e5"}}