{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:UR5PC33HMBWVWM2XUB6LX6BQM7","short_pith_number":"pith:UR5PC33H","canonical_record":{"source":{"id":"2205.05679","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-05-11T17:59:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"f39b97b3ba75ff801258c23f3113ae4e9fc8f84328fddbe23becf07ac25487ee","abstract_canon_sha256":"f533f6a7b8d7bfed219d28e82ea8880cd83a59b97a9b5df440696d18ece1757e"},"schema_version":"1.0"},"canonical_sha256":"a47af16f67606d5b3357a07cbbf83067fb0e99722bd2996078c3bafe0dee879c","source":{"kind":"arxiv","id":"2205.05679","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.05679","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"arxiv_version","alias_value":"2205.05679v2","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.05679","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"pith_short_12","alias_value":"UR5PC33HMBWV","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"UR5PC33HMBWVWM2X","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"UR5PC33H","created_at":"2026-07-05T04:33:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:UR5PC33HMBWVWM2XUB6LX6BQM7","target":"record","payload":{"canonical_record":{"source":{"id":"2205.05679","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-05-11T17:59:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"f39b97b3ba75ff801258c23f3113ae4e9fc8f84328fddbe23becf07ac25487ee","abstract_canon_sha256":"f533f6a7b8d7bfed219d28e82ea8880cd83a59b97a9b5df440696d18ece1757e"},"schema_version":"1.0"},"canonical_sha256":"a47af16f67606d5b3357a07cbbf83067fb0e99722bd2996078c3bafe0dee879c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:37.238880Z","signature_b64":"lv59zHIf7Z26bX5tBG6/8k/IxznrbcXOE8hOIpCaTTa5p4TDL8pErLJ977j9qeVNnALsX/tcJy+t9vI7Ag26Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a47af16f67606d5b3357a07cbbf83067fb0e99722bd2996078c3bafe0dee879c","last_reissued_at":"2026-07-05T04:33:37.238448Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:37.238448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.05679","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":"2026-07-05T04:33:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"juBsWQ567mxAlneesqUhR9r0Ik6isdjRxZ/5bO9c5moraQmP6mRYMvKA4KUqsPYeRIKj5akL+fO33WWk6omYBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:37:23.090975Z"},"content_sha256":"b5067f741e452ec98bf15cbb7152a0effc8028053d85e7a92c1536eb029d5562","schema_version":"1.0","event_id":"sha256:b5067f741e452ec98bf15cbb7152a0effc8028053d85e7a92c1536eb029d5562"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:UR5PC33HMBWVWM2XUB6LX6BQM7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Linking stellar populations to HII regions across nearby galaxies: I. Constraining pre-supernova feedback from young clusters in NGC1672","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. F. McLeod, A. K. Leroy, A. T. Barnes, B. Groves, C. Eibensteiner, D. A. Dale, D. A. Thilker, E. Congiu, E. Emsellem, E. J. Watkins, E. Schinnerer, F. Belfiore, F. Bigiel, F. Scheuermann, G. A. Blanc, H. Hassani, H. Pan, J. C. Lee, J. den Brok, J. M. D. Kruijssen, K. Grasha, K. Kreckel, L. A. Lopez, L. Ubeda, M. Boquien, M. Chevance, M. C. Sormani, O. V. Egorov, P. S\\'anchez-Bl\\'azquez, R. Chandar, R. S. Klessen, S. C. O. Glover, S. Deger, S. Hannon, T. G. Williams","submitted_at":"2022-05-11T17:59:59Z","abstract_excerpt":"One of the fundamental factors regulating the evolution of galaxies is stellar feedback. However, we still do not have strong observational constraints on the relative importance of the different feedback mechanisms (e.g. radiation, ionised gas pressure, stellar winds) in driving HII region evolution and molecular cloud disruption. In this letter, we constrain the relative importance of the various feedback mechanisms from young massive star populations by resolving HII regions across the disk of the nearby star-forming galaxy NGC 1672. We combine measurements of ionised gas nebular lines obta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.05679","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/2205.05679/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":"2026-07-05T04:33:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kx0PNvqQrQMLWZGNo7DOyOzevXkQMkjzCnKKFyfxYbPu4c7RnWk7xeIhVXvzziYAG5UhkQxR/BvGla+fK+tpDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:37:23.091927Z"},"content_sha256":"14486e96c5ff7590f847389eef201289535703a4a65d4717f0e8364616a370eb","schema_version":"1.0","event_id":"sha256:14486e96c5ff7590f847389eef201289535703a4a65d4717f0e8364616a370eb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UR5PC33HMBWVWM2XUB6LX6BQM7/bundle.json","state_url":"https://pith.science/pith/UR5PC33HMBWVWM2XUB6LX6BQM7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UR5PC33HMBWVWM2XUB6LX6BQM7/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":"2026-08-03T19:37:23Z","links":{"resolver":"https://pith.science/pith/UR5PC33HMBWVWM2XUB6LX6BQM7","bundle":"https://pith.science/pith/UR5PC33HMBWVWM2XUB6LX6BQM7/bundle.json","state":"https://pith.science/pith/UR5PC33HMBWVWM2XUB6LX6BQM7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UR5PC33HMBWVWM2XUB6LX6BQM7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:UR5PC33HMBWVWM2XUB6LX6BQM7","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":"f533f6a7b8d7bfed219d28e82ea8880cd83a59b97a9b5df440696d18ece1757e","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-05-11T17:59:59Z","title_canon_sha256":"f39b97b3ba75ff801258c23f3113ae4e9fc8f84328fddbe23becf07ac25487ee"},"schema_version":"1.0","source":{"id":"2205.05679","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.05679","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"arxiv_version","alias_value":"2205.05679v2","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.05679","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"pith_short_12","alias_value":"UR5PC33HMBWV","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"UR5PC33HMBWVWM2X","created_at":"2026-07-05T04:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"UR5PC33H","created_at":"2026-07-05T04:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:14486e96c5ff7590f847389eef201289535703a4a65d4717f0e8364616a370eb","target":"graph","created_at":"2026-07-05T04:33:37Z","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/2205.05679/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"One of the fundamental factors regulating the evolution of galaxies is stellar feedback. However, we still do not have strong observational constraints on the relative importance of the different feedback mechanisms (e.g. radiation, ionised gas pressure, stellar winds) in driving HII region evolution and molecular cloud disruption. In this letter, we constrain the relative importance of the various feedback mechanisms from young massive star populations by resolving HII regions across the disk of the nearby star-forming galaxy NGC 1672. We combine measurements of ionised gas nebular lines obta","authors_text":"A. F. McLeod, A. K. Leroy, A. T. Barnes, B. Groves, C. Eibensteiner, D. A. Dale, D. A. Thilker, E. Congiu, E. Emsellem, E. J. Watkins, E. Schinnerer, F. Belfiore, F. Bigiel, F. Scheuermann, G. A. Blanc, H. Hassani, H. Pan, J. C. Lee, J. den Brok, J. M. D. Kruijssen, K. Grasha, K. Kreckel, L. A. Lopez, L. Ubeda, M. Boquien, M. Chevance, M. C. Sormani, O. V. Egorov, P. S\\'anchez-Bl\\'azquez, R. Chandar, R. S. Klessen, S. C. O. Glover, S. Deger, S. Hannon, T. G. Williams","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-05-11T17:59:59Z","title":"Linking stellar populations to HII regions across nearby galaxies: I. Constraining pre-supernova feedback from young clusters in NGC1672"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.05679","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:b5067f741e452ec98bf15cbb7152a0effc8028053d85e7a92c1536eb029d5562","target":"record","created_at":"2026-07-05T04:33:37Z","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":"f533f6a7b8d7bfed219d28e82ea8880cd83a59b97a9b5df440696d18ece1757e","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2022-05-11T17:59:59Z","title_canon_sha256":"f39b97b3ba75ff801258c23f3113ae4e9fc8f84328fddbe23becf07ac25487ee"},"schema_version":"1.0","source":{"id":"2205.05679","kind":"arxiv","version":2}},"canonical_sha256":"a47af16f67606d5b3357a07cbbf83067fb0e99722bd2996078c3bafe0dee879c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a47af16f67606d5b3357a07cbbf83067fb0e99722bd2996078c3bafe0dee879c","first_computed_at":"2026-07-05T04:33:37.238448Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:37.238448Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lv59zHIf7Z26bX5tBG6/8k/IxznrbcXOE8hOIpCaTTa5p4TDL8pErLJ977j9qeVNnALsX/tcJy+t9vI7Ag26Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:37.238880Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.05679","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b5067f741e452ec98bf15cbb7152a0effc8028053d85e7a92c1536eb029d5562","sha256:14486e96c5ff7590f847389eef201289535703a4a65d4717f0e8364616a370eb"],"state_sha256":"85e57c6783bf69b13f463d578c97d4205647bf268915307bc337db7f82b5e0f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qHo5NLw1yt5kWMS17dW91PA4GvCSYq9/I/ulCmbUn5urtQMVHbxN3y5sAwZvvflkDjt3HbYAb8cSZutIPLmRAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:37:23.156806Z","bundle_sha256":"5f1c5fc71e18a96c0935b521ba03f153c77b3bb30b8d389913268535fefca125"}}