{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:QCXTSUPTCTOXNVZ5DVC7ED3EEC","short_pith_number":"pith:QCXTSUPT","canonical_record":{"source":{"id":"2104.03991","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-08T18:02:47Z","cross_cats_sorted":[],"title_canon_sha256":"eb97290895412dd5923e4f110e8b40b564505dbede768083e407a6adeed744e5","abstract_canon_sha256":"a543f9ef31b7435dde9c8dcb91fa8b46258c5e846b8ea008edbc9d0b78267e78"},"schema_version":"1.0"},"canonical_sha256":"80af3951f314dd76d73d1d45f20f642087099e79ab7018ed3d0aa71a120f2103","source":{"kind":"arxiv","id":"2104.03991","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.03991","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"arxiv_version","alias_value":"2104.03991v2","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.03991","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"pith_short_12","alias_value":"QCXTSUPTCTOX","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"pith_short_16","alias_value":"QCXTSUPTCTOXNVZ5","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"pith_short_8","alias_value":"QCXTSUPT","created_at":"2026-07-05T03:16:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:QCXTSUPTCTOXNVZ5DVC7ED3EEC","target":"record","payload":{"canonical_record":{"source":{"id":"2104.03991","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-08T18:02:47Z","cross_cats_sorted":[],"title_canon_sha256":"eb97290895412dd5923e4f110e8b40b564505dbede768083e407a6adeed744e5","abstract_canon_sha256":"a543f9ef31b7435dde9c8dcb91fa8b46258c5e846b8ea008edbc9d0b78267e78"},"schema_version":"1.0"},"canonical_sha256":"80af3951f314dd76d73d1d45f20f642087099e79ab7018ed3d0aa71a120f2103","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:16:31.894724Z","signature_b64":"lpeJzIGfKXSXP0DOT5/m0X1oEaxhGGZ8uYcmc0pR3Mlid8InrZRKr3dG2XMce7feo1qxZnBoQXh9uojTG23VDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80af3951f314dd76d73d1d45f20f642087099e79ab7018ed3d0aa71a120f2103","last_reissued_at":"2026-07-05T03:16:31.894374Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:16:31.894374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.03991","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:16:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YOa+cr0UtzoggelKUmFjDBdgQJ17P25YkkEVgll5D42OYQjJ5gOuakSNn6RDq2s6KDgxigrHcrPUdfJZrCZFCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:38:56.103011Z"},"content_sha256":"a86cec514852ca07e1d48797fba36480be36ac6c6f474fc7ae15441a2514aef8","schema_version":"1.0","event_id":"sha256:a86cec514852ca07e1d48797fba36480be36ac6c6f474fc7ae15441a2514aef8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:QCXTSUPTCTOXNVZ5DVC7ED3EEC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-wavelength follow-up of FRB 180309","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Giuliano Pignata, Jane F. Kaczmarek, J. Xavier Prochaska, Kshitij Aggarwal, Nicolas Tejos, Sarah Burke-Spolaor, Stefan Oslowski, Vikram Ravi","submitted_at":"2021-04-08T18:02:47Z","abstract_excerpt":"We report on the results of multi-wavelength follow-up observations with Gemini, VLA, and ATCA, to search for a host galaxy and any persistent radio emission associated with FRB 180309. This FRB is among the most luminous FRB detections to date, with a luminosity of $> 8.7\\times 10^{32}$ erg Hz$^{-1}$ at the dispersion-based redshift upper limit of 0.32. We used the high-significance detection of FRB 180309 with the Parkes Telescope and a beam model of the Parkes Multibeam Receiver to improve the localization of the FRB to a region spanning approximately $\\sim2'\\times2'$. We aimed to seek brig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.03991","kind":"arxiv","version":2},"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/2104.03991/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":"2026-07-05T03:16:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ckyReJCu/Zjc5qykvGCWjvStOQ8LYFPKSp1Eu+TR0zjiNVNS1iMcpZuLbClPuAwpIjuvVBH6KVFBMpmI+sTzAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:38:56.103585Z"},"content_sha256":"ae200e03200db4ab3a9715b5d7dc0824e060a0d89201a29cf762fb40947689e7","schema_version":"1.0","event_id":"sha256:ae200e03200db4ab3a9715b5d7dc0824e060a0d89201a29cf762fb40947689e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC/bundle.json","state_url":"https://pith.science/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC/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":"2026-08-07T05:38:56Z","links":{"resolver":"https://pith.science/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC","bundle":"https://pith.science/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC/bundle.json","state":"https://pith.science/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QCXTSUPTCTOXNVZ5DVC7ED3EEC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:QCXTSUPTCTOXNVZ5DVC7ED3EEC","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":"a543f9ef31b7435dde9c8dcb91fa8b46258c5e846b8ea008edbc9d0b78267e78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-08T18:02:47Z","title_canon_sha256":"eb97290895412dd5923e4f110e8b40b564505dbede768083e407a6adeed744e5"},"schema_version":"1.0","source":{"id":"2104.03991","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.03991","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"arxiv_version","alias_value":"2104.03991v2","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.03991","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"pith_short_12","alias_value":"QCXTSUPTCTOX","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"pith_short_16","alias_value":"QCXTSUPTCTOXNVZ5","created_at":"2026-07-05T03:16:31Z"},{"alias_kind":"pith_short_8","alias_value":"QCXTSUPT","created_at":"2026-07-05T03:16:31Z"}],"graph_snapshots":[{"event_id":"sha256:ae200e03200db4ab3a9715b5d7dc0824e060a0d89201a29cf762fb40947689e7","target":"graph","created_at":"2026-07-05T03:16:31Z","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/2104.03991/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on the results of multi-wavelength follow-up observations with Gemini, VLA, and ATCA, to search for a host galaxy and any persistent radio emission associated with FRB 180309. This FRB is among the most luminous FRB detections to date, with a luminosity of $> 8.7\\times 10^{32}$ erg Hz$^{-1}$ at the dispersion-based redshift upper limit of 0.32. We used the high-significance detection of FRB 180309 with the Parkes Telescope and a beam model of the Parkes Multibeam Receiver to improve the localization of the FRB to a region spanning approximately $\\sim2'\\times2'$. We aimed to seek brig","authors_text":"Giuliano Pignata, Jane F. Kaczmarek, J. Xavier Prochaska, Kshitij Aggarwal, Nicolas Tejos, Sarah Burke-Spolaor, Stefan Oslowski, Vikram Ravi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-08T18:02:47Z","title":"Multi-wavelength follow-up of FRB 180309"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.03991","kind":"arxiv","version":2},"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:a86cec514852ca07e1d48797fba36480be36ac6c6f474fc7ae15441a2514aef8","target":"record","created_at":"2026-07-05T03:16:31Z","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":"a543f9ef31b7435dde9c8dcb91fa8b46258c5e846b8ea008edbc9d0b78267e78","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-08T18:02:47Z","title_canon_sha256":"eb97290895412dd5923e4f110e8b40b564505dbede768083e407a6adeed744e5"},"schema_version":"1.0","source":{"id":"2104.03991","kind":"arxiv","version":2}},"canonical_sha256":"80af3951f314dd76d73d1d45f20f642087099e79ab7018ed3d0aa71a120f2103","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80af3951f314dd76d73d1d45f20f642087099e79ab7018ed3d0aa71a120f2103","first_computed_at":"2026-07-05T03:16:31.894374Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:16:31.894374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lpeJzIGfKXSXP0DOT5/m0X1oEaxhGGZ8uYcmc0pR3Mlid8InrZRKr3dG2XMce7feo1qxZnBoQXh9uojTG23VDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:16:31.894724Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.03991","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a86cec514852ca07e1d48797fba36480be36ac6c6f474fc7ae15441a2514aef8","sha256:ae200e03200db4ab3a9715b5d7dc0824e060a0d89201a29cf762fb40947689e7"],"state_sha256":"7a92a66811983a14527b4eb30696f441a6eb6995806752ef9287c9b0fdb2787d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nU6/ZjMiI0zRKth6UuvqkYJMPIRME/5cRIW+k3ymwuF/TaFhBR4mxT4hd++7N8vCMZZqbvKZ/8WQ0nG5MpcZCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T05:38:56.108039Z","bundle_sha256":"5da1d7006c79f6912369cfc61f4c56a817fd1eacc79dd9ec2eb6196ec1150d96"}}