{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:EU22GN2XL3U5IDK2ZLZ6M6AA7S","short_pith_number":"pith:EU22GN2X","canonical_record":{"source":{"id":"2506.16275","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-19T12:49:02Z","cross_cats_sorted":[],"title_canon_sha256":"f9ebf86ad587f79178c678cd9477abbd534c8fb01816d1de41086185bc61559e","abstract_canon_sha256":"290ceba10f866f361bac136539831d875bddce65208aee9202b8cf71e3b8f674"},"schema_version":"1.0"},"canonical_sha256":"2535a337575ee9d40d5acaf3e67800fc818060d963cb08fad9e44a2d965d561a","source":{"kind":"arxiv","id":"2506.16275","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.16275","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"arxiv_version","alias_value":"2506.16275v1","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.16275","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"pith_short_12","alias_value":"EU22GN2XL3U5","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"pith_short_16","alias_value":"EU22GN2XL3U5IDK2","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"pith_short_8","alias_value":"EU22GN2X","created_at":"2026-07-05T11:25:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:EU22GN2XL3U5IDK2ZLZ6M6AA7S","target":"record","payload":{"canonical_record":{"source":{"id":"2506.16275","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-19T12:49:02Z","cross_cats_sorted":[],"title_canon_sha256":"f9ebf86ad587f79178c678cd9477abbd534c8fb01816d1de41086185bc61559e","abstract_canon_sha256":"290ceba10f866f361bac136539831d875bddce65208aee9202b8cf71e3b8f674"},"schema_version":"1.0"},"canonical_sha256":"2535a337575ee9d40d5acaf3e67800fc818060d963cb08fad9e44a2d965d561a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:25:46.750696Z","signature_b64":"8JZvMbEN0vXXQFJ8pY21E+YCm/q7rqkK+gfHxJ6029qWQo/+pbPsd3BhNI68FvPfSdGrSP5BeQmARGkr6+vjDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2535a337575ee9d40d5acaf3e67800fc818060d963cb08fad9e44a2d965d561a","last_reissued_at":"2026-07-05T11:25:46.750188Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:25:46.750188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.16275","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":"2026-07-05T11:25:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aXQ7dqdcFkfXZDYC7acQtCEvxiOED+0I5kalob1dS6sMQFUjLuyuw9EeNgrftu9HTLKTCqKkBCOKuVYIuirECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:45:11.136855Z"},"content_sha256":"a6c331f4d8b33ed8897a8a375e84e441748b70b39ed5c423b8c9f7e37ae9cfa9","schema_version":"1.0","event_id":"sha256:a6c331f4d8b33ed8897a8a375e84e441748b70b39ed5c423b8c9f7e37ae9cfa9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:EU22GN2XL3U5IDK2ZLZ6M6AA7S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Radio Spectral Energy Distribution and Star Formation Calibration in MIGHTEE-COSMOS Highly Star-Forming Galaxies at 1.5 < z < 3.5","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Eric J. Murphy, FangXia An, Fatemeh Tabatabaei, Imogen H. Whittam, Maryam Khademi, Mattia Vaccari, Matt J. Jarvis, Reihaneh Javadi, Russ Taylor","submitted_at":"2025-06-19T12:49:02Z","abstract_excerpt":"Studying the radio spectral energy distribution (SED) of distant galaxies is essential for understanding their assembly and evolution over cosmic time. We present rest-frame radio SEDs of a sample of 160 starburst galaxies at redshifts 1.5 to 3.5 in the COSMOS field, as part of the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) project. MeerKAT observations, combined with archival VLA and GMRT data, allow us to determine the integrated mid-radio (1-10 GHz) continuum (MRC) luminosity and magnetic field strength. A Bayesian method is used to model the SEDs and separate free"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.16275","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/2506.16275/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":"2026-07-05T11:25:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s1bHmxe+1KuFoeaGJ5n3qKpUQq8mu7+Z4B0+YJRYvV6azuXSh1ZXDKp9OBu6NgwQJa9RZedI6jrDKS6tN+VICg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:45:11.137799Z"},"content_sha256":"ca2dcaa905546380563787ccfb382da1e7693c182e75644146042d57f9416e5a","schema_version":"1.0","event_id":"sha256:ca2dcaa905546380563787ccfb382da1e7693c182e75644146042d57f9416e5a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S/bundle.json","state_url":"https://pith.science/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S/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":"2026-08-03T16:45:11Z","links":{"resolver":"https://pith.science/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S","bundle":"https://pith.science/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S/bundle.json","state":"https://pith.science/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EU22GN2XL3U5IDK2ZLZ6M6AA7S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EU22GN2XL3U5IDK2ZLZ6M6AA7S","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":"290ceba10f866f361bac136539831d875bddce65208aee9202b8cf71e3b8f674","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-19T12:49:02Z","title_canon_sha256":"f9ebf86ad587f79178c678cd9477abbd534c8fb01816d1de41086185bc61559e"},"schema_version":"1.0","source":{"id":"2506.16275","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.16275","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"arxiv_version","alias_value":"2506.16275v1","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.16275","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"pith_short_12","alias_value":"EU22GN2XL3U5","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"pith_short_16","alias_value":"EU22GN2XL3U5IDK2","created_at":"2026-07-05T11:25:46Z"},{"alias_kind":"pith_short_8","alias_value":"EU22GN2X","created_at":"2026-07-05T11:25:46Z"}],"graph_snapshots":[{"event_id":"sha256:ca2dcaa905546380563787ccfb382da1e7693c182e75644146042d57f9416e5a","target":"graph","created_at":"2026-07-05T11:25:46Z","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/2506.16275/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Studying the radio spectral energy distribution (SED) of distant galaxies is essential for understanding their assembly and evolution over cosmic time. We present rest-frame radio SEDs of a sample of 160 starburst galaxies at redshifts 1.5 to 3.5 in the COSMOS field, as part of the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) project. MeerKAT observations, combined with archival VLA and GMRT data, allow us to determine the integrated mid-radio (1-10 GHz) continuum (MRC) luminosity and magnetic field strength. A Bayesian method is used to model the SEDs and separate free","authors_text":"Eric J. Murphy, FangXia An, Fatemeh Tabatabaei, Imogen H. Whittam, Maryam Khademi, Mattia Vaccari, Matt J. Jarvis, Reihaneh Javadi, Russ Taylor","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-19T12:49:02Z","title":"The Radio Spectral Energy Distribution and Star Formation Calibration in MIGHTEE-COSMOS Highly Star-Forming Galaxies at 1.5 < z < 3.5"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.16275","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:a6c331f4d8b33ed8897a8a375e84e441748b70b39ed5c423b8c9f7e37ae9cfa9","target":"record","created_at":"2026-07-05T11:25:46Z","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":"290ceba10f866f361bac136539831d875bddce65208aee9202b8cf71e3b8f674","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-19T12:49:02Z","title_canon_sha256":"f9ebf86ad587f79178c678cd9477abbd534c8fb01816d1de41086185bc61559e"},"schema_version":"1.0","source":{"id":"2506.16275","kind":"arxiv","version":1}},"canonical_sha256":"2535a337575ee9d40d5acaf3e67800fc818060d963cb08fad9e44a2d965d561a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2535a337575ee9d40d5acaf3e67800fc818060d963cb08fad9e44a2d965d561a","first_computed_at":"2026-07-05T11:25:46.750188Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:25:46.750188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8JZvMbEN0vXXQFJ8pY21E+YCm/q7rqkK+gfHxJ6029qWQo/+pbPsd3BhNI68FvPfSdGrSP5BeQmARGkr6+vjDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:25:46.750696Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.16275","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6c331f4d8b33ed8897a8a375e84e441748b70b39ed5c423b8c9f7e37ae9cfa9","sha256:ca2dcaa905546380563787ccfb382da1e7693c182e75644146042d57f9416e5a"],"state_sha256":"9dc8742e7c12f418a1f20755a70bee6c51098241d7610b8f7147d12765f7f735"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FuEQF8RAjergkv3lK2jk5K+OUBHi9OgKkhLYTFb9wPjnByWxCoNnWsh4382zeAIcjJQ8fOlykKptO6r6gJMxAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:45:11.150318Z","bundle_sha256":"669f7c3d0b4fc85cc59cc9020dbcc8b0bc40a650ff41db344fa652f9181e6761"}}