{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LFE5SZB3KECM6B6UJSXWEOQLH7","short_pith_number":"pith:LFE5SZB3","canonical_record":{"source":{"id":"2007.04347","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-08T18:06:02Z","cross_cats_sorted":[],"title_canon_sha256":"64a90bc2820fbe847c467ddf6daab791e61e448184fce5db9b3eaed877ddab7d","abstract_canon_sha256":"afdd00252ac59897136ca47bf04a6e50da211e6a9f51725ca84bf7e52906559f"},"schema_version":"1.0"},"canonical_sha256":"5949d9643b5104cf07d44caf623a0b3fe14532bd36eb19e0f6297b437cc3d888","source":{"kind":"arxiv","id":"2007.04347","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.04347","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"arxiv_version","alias_value":"2007.04347v2","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.04347","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"pith_short_12","alias_value":"LFE5SZB3KECM","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"pith_short_16","alias_value":"LFE5SZB3KECM6B6U","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"pith_short_8","alias_value":"LFE5SZB3","created_at":"2026-07-05T02:09:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LFE5SZB3KECM6B6UJSXWEOQLH7","target":"record","payload":{"canonical_record":{"source":{"id":"2007.04347","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-08T18:06:02Z","cross_cats_sorted":[],"title_canon_sha256":"64a90bc2820fbe847c467ddf6daab791e61e448184fce5db9b3eaed877ddab7d","abstract_canon_sha256":"afdd00252ac59897136ca47bf04a6e50da211e6a9f51725ca84bf7e52906559f"},"schema_version":"1.0"},"canonical_sha256":"5949d9643b5104cf07d44caf623a0b3fe14532bd36eb19e0f6297b437cc3d888","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:09:42.187149Z","signature_b64":"/WJKGeNAJN2NA720PamA4j60qFgCztbETglDI9Rb/p2NGd3b3Z/p5Vnp10ToFcrz7pItqZ9KJNy0B6va8c1zDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5949d9643b5104cf07d44caf623a0b3fe14532bd36eb19e0f6297b437cc3d888","last_reissued_at":"2026-07-05T02:09:42.186609Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:09:42.186609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.04347","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":"2026-07-05T02:09:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F+njp4aC1IF77gEIKdNp2ucnZhRtMjbAeTWiuF6i3v+uxBgZPwa6Ih+tEY00VfqsfzwwzYX1xQ0yzihcXoKPBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:29:02.472728Z"},"content_sha256":"1946c06a9c15312de038d5b5cfa639f57715ab44d1d7f9fb1720d6a7e05b6571","schema_version":"1.0","event_id":"sha256:1946c06a9c15312de038d5b5cfa639f57715ab44d1d7f9fb1720d6a7e05b6571"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LFE5SZB3KECM6B6UJSXWEOQLH7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Blind HI and OH absorption line search: first results with MALS and uGMRT processed using ARTIP","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. J. Baker, A. Schr\\\"oeder, C. Cress, C. Kaski, E. Boettcher, E. Kamau, E. Momjian, F. Combes, G. Heald, G. I. G. J\\'ozsa, H.-R. Kl\\\"ockner, H.-W. Chen, J. Jose, J. Kerp, J-.K. Krogager, J. Wagenveld, K. Knowles, K. Moodley, N. Gupta, O. I. Wong, P. Jagannathan, P. Kamphuis, P. Noterdaeme, P. Petitjean, R. Dutta, R. Srianand, S. A. Balashev, S. Bhatnagar, S. Goedhart, S. Pandey, S. Passmoor, S. Sekhar, S. Sikhosana, V. Krishnan, V. P. Kulkarni","submitted_at":"2020-07-08T18:06:02Z","abstract_excerpt":"We present details of the Automated Radio Telescope Imaging Pipeline (ARTIP) and results of a sensitive blind search for HI and OH absorbers at $z<0.4$ and $z<0.7$, respectively. ARTIP is written in Python 3.6, extensively uses the Common Astronomy Software Application (CASA) tools and tasks, and is designed to enable the geographically-distributed MeerKAT Absorption Line Survey (MALS) team to collaboratively process large volumes of radio interferometric data. We apply it to the first MALS dataset obtained using the 64-dish MeerKAT radio telescope and 32K channel mode of the correlator. With "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.04347","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/2007.04347/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":"2026-07-05T02:09:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vGCIUufRt8SeoGZCBLBxU2fxxluDiSjpLpRzHCV0jEukCN8zY6ZfKmLubAs1TJUW1ztPl54LFrr512xywJBHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T19:29:02.473111Z"},"content_sha256":"94760944e0bd53fea4851f8c550bbbf0bf7fa3b8c85d3fee99260c29267d3014","schema_version":"1.0","event_id":"sha256:94760944e0bd53fea4851f8c550bbbf0bf7fa3b8c85d3fee99260c29267d3014"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LFE5SZB3KECM6B6UJSXWEOQLH7/bundle.json","state_url":"https://pith.science/pith/LFE5SZB3KECM6B6UJSXWEOQLH7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LFE5SZB3KECM6B6UJSXWEOQLH7/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":"2026-07-08T19:29:02Z","links":{"resolver":"https://pith.science/pith/LFE5SZB3KECM6B6UJSXWEOQLH7","bundle":"https://pith.science/pith/LFE5SZB3KECM6B6UJSXWEOQLH7/bundle.json","state":"https://pith.science/pith/LFE5SZB3KECM6B6UJSXWEOQLH7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LFE5SZB3KECM6B6UJSXWEOQLH7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LFE5SZB3KECM6B6UJSXWEOQLH7","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":"afdd00252ac59897136ca47bf04a6e50da211e6a9f51725ca84bf7e52906559f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-08T18:06:02Z","title_canon_sha256":"64a90bc2820fbe847c467ddf6daab791e61e448184fce5db9b3eaed877ddab7d"},"schema_version":"1.0","source":{"id":"2007.04347","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.04347","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"arxiv_version","alias_value":"2007.04347v2","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.04347","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"pith_short_12","alias_value":"LFE5SZB3KECM","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"pith_short_16","alias_value":"LFE5SZB3KECM6B6U","created_at":"2026-07-05T02:09:42Z"},{"alias_kind":"pith_short_8","alias_value":"LFE5SZB3","created_at":"2026-07-05T02:09:42Z"}],"graph_snapshots":[{"event_id":"sha256:94760944e0bd53fea4851f8c550bbbf0bf7fa3b8c85d3fee99260c29267d3014","target":"graph","created_at":"2026-07-05T02:09:42Z","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/2007.04347/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present details of the Automated Radio Telescope Imaging Pipeline (ARTIP) and results of a sensitive blind search for HI and OH absorbers at $z<0.4$ and $z<0.7$, respectively. ARTIP is written in Python 3.6, extensively uses the Common Astronomy Software Application (CASA) tools and tasks, and is designed to enable the geographically-distributed MeerKAT Absorption Line Survey (MALS) team to collaboratively process large volumes of radio interferometric data. We apply it to the first MALS dataset obtained using the 64-dish MeerKAT radio telescope and 32K channel mode of the correlator. With ","authors_text":"A. J. Baker, A. Schr\\\"oeder, C. Cress, C. Kaski, E. Boettcher, E. Kamau, E. Momjian, F. Combes, G. Heald, G. I. G. J\\'ozsa, H.-R. Kl\\\"ockner, H.-W. Chen, J. Jose, J. Kerp, J-.K. Krogager, J. Wagenveld, K. Knowles, K. Moodley, N. Gupta, O. I. Wong, P. Jagannathan, P. Kamphuis, P. Noterdaeme, P. Petitjean, R. Dutta, R. Srianand, S. A. Balashev, S. Bhatnagar, S. Goedhart, S. Pandey, S. Passmoor, S. Sekhar, S. Sikhosana, V. Krishnan, V. P. Kulkarni","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-08T18:06:02Z","title":"Blind HI and OH absorption line search: first results with MALS and uGMRT processed using ARTIP"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.04347","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":"sha256:1946c06a9c15312de038d5b5cfa639f57715ab44d1d7f9fb1720d6a7e05b6571","target":"record","created_at":"2026-07-05T02:09:42Z","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":"afdd00252ac59897136ca47bf04a6e50da211e6a9f51725ca84bf7e52906559f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-08T18:06:02Z","title_canon_sha256":"64a90bc2820fbe847c467ddf6daab791e61e448184fce5db9b3eaed877ddab7d"},"schema_version":"1.0","source":{"id":"2007.04347","kind":"arxiv","version":2}},"canonical_sha256":"5949d9643b5104cf07d44caf623a0b3fe14532bd36eb19e0f6297b437cc3d888","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5949d9643b5104cf07d44caf623a0b3fe14532bd36eb19e0f6297b437cc3d888","first_computed_at":"2026-07-05T02:09:42.186609Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:09:42.186609Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/WJKGeNAJN2NA720PamA4j60qFgCztbETglDI9Rb/p2NGd3b3Z/p5Vnp10ToFcrz7pItqZ9KJNy0B6va8c1zDA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:09:42.187149Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.04347","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1946c06a9c15312de038d5b5cfa639f57715ab44d1d7f9fb1720d6a7e05b6571","sha256:94760944e0bd53fea4851f8c550bbbf0bf7fa3b8c85d3fee99260c29267d3014"],"state_sha256":"206a494864e41bfd3a6e767cb8aec56b920a5fae9d3c2c7eb0af0d161afd5ca2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5dJ+krp/lnFyIAcTQQIHuHkjyi3M2ezHeyE6msfvjRVzy6HhTk6gAwyXBen9SbHt+kdleNu3/0FK9/aKSOyuDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T19:29:02.475216Z","bundle_sha256":"5931aee99ead9a4b3b82fa6eb61d10d8b97842fd297e05b15d580a59a774c78b"}}