{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:UIAUAM22H3KUQS6WJ26CEP42PZ","short_pith_number":"pith:UIAUAM22","canonical_record":{"source":{"id":"2410.16370","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-10-21T18:00:02Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"449cc6b6f36da18dd2468b4c71f15ea3722e9b3cb42f77f872cee102a5849fa8","abstract_canon_sha256":"1a35383084d58c57ef4c08d108e5aa6e12cf48819bcef27e6ef6d9d96ad48be0"},"schema_version":"1.0"},"canonical_sha256":"a20140335a3ed5484bd64ebc223f9a7e750b5a1329af1e78be1ca2e04dc19de1","source":{"kind":"arxiv","id":"2410.16370","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.16370","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"arxiv_version","alias_value":"2410.16370v2","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.16370","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"pith_short_12","alias_value":"UIAUAM22H3KU","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"pith_short_16","alias_value":"UIAUAM22H3KUQS6W","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"pith_short_8","alias_value":"UIAUAM22","created_at":"2026-07-05T10:16:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:UIAUAM22H3KUQS6WJ26CEP42PZ","target":"record","payload":{"canonical_record":{"source":{"id":"2410.16370","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-10-21T18:00:02Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"449cc6b6f36da18dd2468b4c71f15ea3722e9b3cb42f77f872cee102a5849fa8","abstract_canon_sha256":"1a35383084d58c57ef4c08d108e5aa6e12cf48819bcef27e6ef6d9d96ad48be0"},"schema_version":"1.0"},"canonical_sha256":"a20140335a3ed5484bd64ebc223f9a7e750b5a1329af1e78be1ca2e04dc19de1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:16:14.259802Z","signature_b64":"6R3UJBLJIQne1mPOI+riXJipGV7gaQTW6Kak4l9qzE5CF5hgPrv59NKzUL2SBgKULxt/QtYvXlfRc84oXKs/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a20140335a3ed5484bd64ebc223f9a7e750b5a1329af1e78be1ca2e04dc19de1","last_reissued_at":"2026-07-05T10:16:14.259213Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:16:14.259213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2410.16370","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":"2026-07-05T10:16:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qoov31MTHahXns7ed8x00sxYgPpmef+qsgvEjwVIjuZJ9RB3duT4FSt3/oEJuGu8nRteLk1Y93Kb0q50bnXzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:33:01.034689Z"},"content_sha256":"2be37981358ef4b0354f857bb36b1a3120ec283d41cebb9a47e78e75cbdb0006","schema_version":"1.0","event_id":"sha256:2be37981358ef4b0354f857bb36b1a3120ec283d41cebb9a47e78e75cbdb0006"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:UIAUAM22H3KUQS6WJ26CEP42PZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Machine learning the gap between real and simulated nebulae: A domain-adaptation approach to classify ionised nebulae in nearby galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"Brent Groves, Eduardo M\\'endez-Delgado, Enrico Congiu, Francesco Belfiore, Guillermo Blanc, Mederic Boquien, Melanie Chevance, Michele Ginolfi, Ralf S. Klessen, Simon C. O. Glover, Thomas G. Williams","submitted_at":"2024-10-21T18:00:02Z","abstract_excerpt":"Classifying ionised nebulae in nearby galaxies is crucial to studying stellar feedback mechanisms and understanding the physical conditions of the interstellar medium. This classification task is generally performed by comparing observed line ratios with photoionisation simulations of different types of nebulae (HII regions, planetary nebulae, and supernova remnants). However, due to simplifying assumptions, such simulations are generally unable to fully reproduce the line ratios in observed nebulae. This discrepancy limits the performance of the classical machine-learning approach, where a mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.16370","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/2410.16370/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":"2026-07-05T10:16:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"69F+fbpdK7xP4Osf4UCiXW+7Ji6hdh15jR+iuYJtdVnicMJG1U6pGO7VKn9lMsBgTo71wN+IczEcgq/DmJ7dDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:33:01.035574Z"},"content_sha256":"2664c90d83d935ead834ac04506cdf840e8faf20c68d89d933fc06f01a82f1e4","schema_version":"1.0","event_id":"sha256:2664c90d83d935ead834ac04506cdf840e8faf20c68d89d933fc06f01a82f1e4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UIAUAM22H3KUQS6WJ26CEP42PZ/bundle.json","state_url":"https://pith.science/pith/UIAUAM22H3KUQS6WJ26CEP42PZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UIAUAM22H3KUQS6WJ26CEP42PZ/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":"2026-08-11T06:33:01Z","links":{"resolver":"https://pith.science/pith/UIAUAM22H3KUQS6WJ26CEP42PZ","bundle":"https://pith.science/pith/UIAUAM22H3KUQS6WJ26CEP42PZ/bundle.json","state":"https://pith.science/pith/UIAUAM22H3KUQS6WJ26CEP42PZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UIAUAM22H3KUQS6WJ26CEP42PZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UIAUAM22H3KUQS6WJ26CEP42PZ","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":"1a35383084d58c57ef4c08d108e5aa6e12cf48819bcef27e6ef6d9d96ad48be0","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-10-21T18:00:02Z","title_canon_sha256":"449cc6b6f36da18dd2468b4c71f15ea3722e9b3cb42f77f872cee102a5849fa8"},"schema_version":"1.0","source":{"id":"2410.16370","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.16370","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"arxiv_version","alias_value":"2410.16370v2","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.16370","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"pith_short_12","alias_value":"UIAUAM22H3KU","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"pith_short_16","alias_value":"UIAUAM22H3KUQS6W","created_at":"2026-07-05T10:16:14Z"},{"alias_kind":"pith_short_8","alias_value":"UIAUAM22","created_at":"2026-07-05T10:16:14Z"}],"graph_snapshots":[{"event_id":"sha256:2664c90d83d935ead834ac04506cdf840e8faf20c68d89d933fc06f01a82f1e4","target":"graph","created_at":"2026-07-05T10:16:14Z","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/2410.16370/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Classifying ionised nebulae in nearby galaxies is crucial to studying stellar feedback mechanisms and understanding the physical conditions of the interstellar medium. This classification task is generally performed by comparing observed line ratios with photoionisation simulations of different types of nebulae (HII regions, planetary nebulae, and supernova remnants). However, due to simplifying assumptions, such simulations are generally unable to fully reproduce the line ratios in observed nebulae. This discrepancy limits the performance of the classical machine-learning approach, where a mo","authors_text":"Brent Groves, Eduardo M\\'endez-Delgado, Enrico Congiu, Francesco Belfiore, Guillermo Blanc, Mederic Boquien, Melanie Chevance, Michele Ginolfi, Ralf S. Klessen, Simon C. O. Glover, Thomas G. Williams","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-10-21T18:00:02Z","title":"Machine learning the gap between real and simulated nebulae: A domain-adaptation approach to classify ionised nebulae in nearby galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.16370","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":"sha256:2be37981358ef4b0354f857bb36b1a3120ec283d41cebb9a47e78e75cbdb0006","target":"record","created_at":"2026-07-05T10:16:14Z","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":"1a35383084d58c57ef4c08d108e5aa6e12cf48819bcef27e6ef6d9d96ad48be0","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-10-21T18:00:02Z","title_canon_sha256":"449cc6b6f36da18dd2468b4c71f15ea3722e9b3cb42f77f872cee102a5849fa8"},"schema_version":"1.0","source":{"id":"2410.16370","kind":"arxiv","version":2}},"canonical_sha256":"a20140335a3ed5484bd64ebc223f9a7e750b5a1329af1e78be1ca2e04dc19de1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a20140335a3ed5484bd64ebc223f9a7e750b5a1329af1e78be1ca2e04dc19de1","first_computed_at":"2026-07-05T10:16:14.259213Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:16:14.259213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6R3UJBLJIQne1mPOI+riXJipGV7gaQTW6Kak4l9qzE5CF5hgPrv59NKzUL2SBgKULxt/QtYvXlfRc84oXKs/Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:16:14.259802Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.16370","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2be37981358ef4b0354f857bb36b1a3120ec283d41cebb9a47e78e75cbdb0006","sha256:2664c90d83d935ead834ac04506cdf840e8faf20c68d89d933fc06f01a82f1e4"],"state_sha256":"9daeeeb4a983d09c8a044ce5dcb9166ba04bcafde4117ddea99b81e2df6e6b8b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L5nWB93QzZa30Q2+iHoK7n098kUCG5mhPaHHLU+kwyuqgOQI1CjCre4dp126qZuANo5e3/gvCMBQGLSun4yUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T06:33:01.043096Z","bundle_sha256":"fa9af3d6b8c6fa4af50503af75696218817d1903e89423f93db1da3c811ab9c2"}}