{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:C3OOEBKEYC37JDKHOG6ZQGAYYF","short_pith_number":"pith:C3OOEBKE","canonical_record":{"source":{"id":"2607.21122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-23T09:56:14Z","cross_cats_sorted":[],"title_canon_sha256":"ede09d2a6ebf0523df06d38a1c11fdde189bd3a1387a68d62eb9be58bfc192a9","abstract_canon_sha256":"d6604655888c18f21aae107084149ebf0012ed20a412fcccfcdfe98238b40484"},"schema_version":"1.0"},"canonical_sha256":"16dce20544c0b7f48d4771bd981818c1507ac44fe8c9e609db2cf75aa03c0181","source":{"kind":"arxiv","id":"2607.21122","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.21122","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"arxiv_version","alias_value":"2607.21122v1","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.21122","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"pith_short_12","alias_value":"C3OOEBKEYC37","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"pith_short_16","alias_value":"C3OOEBKEYC37JDKH","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"pith_short_8","alias_value":"C3OOEBKE","created_at":"2026-07-24T01:23:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:C3OOEBKEYC37JDKHOG6ZQGAYYF","target":"record","payload":{"canonical_record":{"source":{"id":"2607.21122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-23T09:56:14Z","cross_cats_sorted":[],"title_canon_sha256":"ede09d2a6ebf0523df06d38a1c11fdde189bd3a1387a68d62eb9be58bfc192a9","abstract_canon_sha256":"d6604655888c18f21aae107084149ebf0012ed20a412fcccfcdfe98238b40484"},"schema_version":"1.0"},"canonical_sha256":"16dce20544c0b7f48d4771bd981818c1507ac44fe8c9e609db2cf75aa03c0181","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-24T01:23:54.144807Z","signature_b64":"knoL736G2WkWIRpMubJx+2kITUNc/v2bTQEt+QVFhiLCIX9hI3EyalzeFJqV0ip1OAXq/KZa1wRi47asHNv5Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"16dce20544c0b7f48d4771bd981818c1507ac44fe8c9e609db2cf75aa03c0181","last_reissued_at":"2026-07-24T01:23:54.143900Z","signature_status":"signed_v1","first_computed_at":"2026-07-24T01:23:54.143900Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.21122","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":"2026-07-24T01:23:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UKhBI5baHnTU7JwQZPdQ9IR+ynwoGp2dnys3FQIFEfT2Fnto43KvenBNMlyBMZpbU8bMvU65scDohBudCN2cAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:34:38.944479Z"},"content_sha256":"fc47af5343dfd382f06ce0f259289f467f5412f8235d55e534d9f05bc99d1dea","schema_version":"1.0","event_id":"sha256:fc47af5343dfd382f06ce0f259289f467f5412f8235d55e534d9f05bc99d1dea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:C3OOEBKEYC37JDKHOG6ZQGAYYF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MIGHTEE: The Host-Galaxy Associated Catalogue of the Radio Sources in MIGHTEE Continuum Data Release 1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. A. V\\u{a}r\\u{a}\\c{s}teanu, A. Matthews, A. Mazumder, A. Saintonge, C. L. Hale, D. J. B. Smith, E. Malefahlo, E. Moravec, E. Vardoulaki, F. Pozzi, F. Sinigaglia, H. Pan, I. H. Whittam, J. Delhaize, J. Hamlett, J. P. Moss, K. K. L. Charlton, L. Barchiesi, L. Heino, L. Marchetti, L. Stockenstroom, L. Verdes-Montenegro, M. J. Hardcastle, M. J. Jarvis, M. N. Tudorache, M. Rakototafika, M. Vaccari, N. Netshiavha, N. Stylianou, P. N. Best, R. A. A. Bowler, R. G. Varadaraj, S. I. Loubser, S. L. Jung, T. F. Rarivoarinoro, W. L. Williams, Z. Randriamanakoto","submitted_at":"2026-07-23T09:56:14Z","abstract_excerpt":"Radio continuum surveys provide samples of active galactic nuclei (AGN) and star forming galaxies (SFGs) to high redshifts, free of biases due to dust obscuration. However, radio detected sources require multi-wavelength counterparts to understand their intrinsic properties (e.g. redshift, stellar mass) and to study the evolution of star formation and AGN activity. In this work we present host galaxy counterparts for the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey continuum Data Release 1 in regions with the best ancillary data (totalling 7.5 sq. deg). We combin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.21122","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/2607.21122/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":"2026-07-24T01:23:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L/eRHZsVLGzIE1veM8AbFxxT7FWQCPcSddLZNihHzEi8Lc92GTewypt/RGHdq7rZgK/akaefFex0cjtrUzA3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:34:38.944996Z"},"content_sha256":"fbc9100cc4184a896e27942cdcda08fd60e9a5456a359abcd1a21fa6b345dfc3","schema_version":"1.0","event_id":"sha256:fbc9100cc4184a896e27942cdcda08fd60e9a5456a359abcd1a21fa6b345dfc3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF/bundle.json","state_url":"https://pith.science/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF/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":"2026-08-04T05:34:38Z","links":{"resolver":"https://pith.science/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF","bundle":"https://pith.science/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF/bundle.json","state":"https://pith.science/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C3OOEBKEYC37JDKHOG6ZQGAYYF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:C3OOEBKEYC37JDKHOG6ZQGAYYF","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":"d6604655888c18f21aae107084149ebf0012ed20a412fcccfcdfe98238b40484","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-23T09:56:14Z","title_canon_sha256":"ede09d2a6ebf0523df06d38a1c11fdde189bd3a1387a68d62eb9be58bfc192a9"},"schema_version":"1.0","source":{"id":"2607.21122","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.21122","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"arxiv_version","alias_value":"2607.21122v1","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.21122","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"pith_short_12","alias_value":"C3OOEBKEYC37","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"pith_short_16","alias_value":"C3OOEBKEYC37JDKH","created_at":"2026-07-24T01:23:54Z"},{"alias_kind":"pith_short_8","alias_value":"C3OOEBKE","created_at":"2026-07-24T01:23:54Z"}],"graph_snapshots":[{"event_id":"sha256:fbc9100cc4184a896e27942cdcda08fd60e9a5456a359abcd1a21fa6b345dfc3","target":"graph","created_at":"2026-07-24T01:23:54Z","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/2607.21122/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Radio continuum surveys provide samples of active galactic nuclei (AGN) and star forming galaxies (SFGs) to high redshifts, free of biases due to dust obscuration. However, radio detected sources require multi-wavelength counterparts to understand their intrinsic properties (e.g. redshift, stellar mass) and to study the evolution of star formation and AGN activity. In this work we present host galaxy counterparts for the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey continuum Data Release 1 in regions with the best ancillary data (totalling 7.5 sq. deg). We combin","authors_text":"A. A. V\\u{a}r\\u{a}\\c{s}teanu, A. Matthews, A. Mazumder, A. Saintonge, C. L. Hale, D. J. B. Smith, E. Malefahlo, E. Moravec, E. Vardoulaki, F. Pozzi, F. Sinigaglia, H. Pan, I. H. Whittam, J. Delhaize, J. Hamlett, J. P. Moss, K. K. L. Charlton, L. Barchiesi, L. Heino, L. Marchetti, L. Stockenstroom, L. Verdes-Montenegro, M. J. Hardcastle, M. J. Jarvis, M. N. Tudorache, M. Rakototafika, M. Vaccari, N. Netshiavha, N. Stylianou, P. N. Best, R. A. A. Bowler, R. G. Varadaraj, S. I. Loubser, S. L. Jung, T. F. Rarivoarinoro, W. L. Williams, Z. Randriamanakoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-23T09:56:14Z","title":"MIGHTEE: The Host-Galaxy Associated Catalogue of the Radio Sources in MIGHTEE Continuum Data Release 1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.21122","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:fc47af5343dfd382f06ce0f259289f467f5412f8235d55e534d9f05bc99d1dea","target":"record","created_at":"2026-07-24T01:23:54Z","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":"d6604655888c18f21aae107084149ebf0012ed20a412fcccfcdfe98238b40484","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-07-23T09:56:14Z","title_canon_sha256":"ede09d2a6ebf0523df06d38a1c11fdde189bd3a1387a68d62eb9be58bfc192a9"},"schema_version":"1.0","source":{"id":"2607.21122","kind":"arxiv","version":1}},"canonical_sha256":"16dce20544c0b7f48d4771bd981818c1507ac44fe8c9e609db2cf75aa03c0181","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16dce20544c0b7f48d4771bd981818c1507ac44fe8c9e609db2cf75aa03c0181","first_computed_at":"2026-07-24T01:23:54.143900Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-24T01:23:54.143900Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"knoL736G2WkWIRpMubJx+2kITUNc/v2bTQEt+QVFhiLCIX9hI3EyalzeFJqV0ip1OAXq/KZa1wRi47asHNv5Cw==","signature_status":"signed_v1","signed_at":"2026-07-24T01:23:54.144807Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.21122","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc47af5343dfd382f06ce0f259289f467f5412f8235d55e534d9f05bc99d1dea","sha256:fbc9100cc4184a896e27942cdcda08fd60e9a5456a359abcd1a21fa6b345dfc3"],"state_sha256":"16b2b49265787b95a1ab43ffdf69969cc23232d09a9aab176459bda77022fbcd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kvjt76JtBbDKurQOztputvBadZajcl/2flpVTzMLtYkRCHNFtb2DzCqMN0Hq7ss7l4DdjfUUeJo372XICj8OCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T05:34:38.949911Z","bundle_sha256":"8d94decacf6874cfbf2d3fdfdbf9bf10201f7f18a3e210f66a38336ed130f97a"}}