{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QWYSPIRMTXD6UINAPZBAGTWXMG","short_pith_number":"pith:QWYSPIRM","canonical_record":{"source":{"id":"1707.06184","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T16:22:53Z","cross_cats_sorted":[],"title_canon_sha256":"5f1c7e2acb6b15f69bddd439d2287cecf87feaf81c5cc82ddff0d03f5ba9704d","abstract_canon_sha256":"1e532f782f20b0361d829a21497a73c89799fbad93d75dcdf186bd4ac1352d35"},"schema_version":"1.0"},"canonical_sha256":"85b127a22c9dc7ea21a07e42034ed76180352255a35aa9d4c7932139446dfcc5","source":{"kind":"arxiv","id":"1707.06184","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06184","created_at":"2026-05-18T00:34:47Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06184v1","created_at":"2026-05-18T00:34:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06184","created_at":"2026-05-18T00:34:47Z"},{"alias_kind":"pith_short_12","alias_value":"QWYSPIRMTXD6","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QWYSPIRMTXD6UINA","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QWYSPIRM","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QWYSPIRMTXD6UINAPZBAGTWXMG","target":"record","payload":{"canonical_record":{"source":{"id":"1707.06184","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T16:22:53Z","cross_cats_sorted":[],"title_canon_sha256":"5f1c7e2acb6b15f69bddd439d2287cecf87feaf81c5cc82ddff0d03f5ba9704d","abstract_canon_sha256":"1e532f782f20b0361d829a21497a73c89799fbad93d75dcdf186bd4ac1352d35"},"schema_version":"1.0"},"canonical_sha256":"85b127a22c9dc7ea21a07e42034ed76180352255a35aa9d4c7932139446dfcc5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:47.044776Z","signature_b64":"swjYDib1BVhH6rQqd1urObW4EXYhwh5OD1jlLfuEcnDUwfBKWtTDk8WuoiiY7stBcVtCQ3ox5lDhk2A2mFe8AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85b127a22c9dc7ea21a07e42034ed76180352255a35aa9d4c7932139446dfcc5","last_reissued_at":"2026-05-18T00:34:47.044133Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:47.044133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.06184","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":"2026-05-18T00:34:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Od790sQwi4vhZNOAEvsoTgfdP0ECW7rQogJvm/VD5iJL3r3w3UkFOKZMv7DnLM+kRRY06ZLBCyTCM9Zfv64TCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:45:26.246732Z"},"content_sha256":"6938b1dc81c017b73d95f69784472955d9b712d550c4c38b98134849c5e03bea","schema_version":"1.0","event_id":"sha256:6938b1dc81c017b73d95f69784472955d9b712d550c4c38b98134849c5e03bea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QWYSPIRMTXD6UINAPZBAGTWXMG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tests of star formation metrics in the low metallicity galaxy NGC 5253 using ALMA observations of H30$\\alpha$ line emission","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"C. Dickinson, D. Espada, G. A. Fuller, G. J. Bendo, K. Nakanishi, M. J. D'Cruze, R. E. Miura, R. J. Beswick","submitted_at":"2017-07-19T16:22:53Z","abstract_excerpt":"We use Atacama Large Millimeter/submillimeter Array (ALMA) observations of H30$\\alpha$ (231.90 GHz) emission from the low metallicity dwarf galaxy NGC 5253 to measure the star formation rate (SFR) within the galaxy and to test the reliability of SFRs derived from other commonly-used metrics. The H30$\\alpha$ emission, which originates mainly from the central starburst, yields a photoionizing photon production rate of (1.9$\\pm$0.3)$\\times$10$^{52}$ s$^{-1}$ and an SFR of 0.087$\\pm$0.013 M$_\\odot$ yr$^{-1}$ based on conversions that account for the low metallicity of the galaxy and for stellar ro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06184","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":""},"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":"2026-05-18T00:34:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pTJtChGOvaa4xLNUc7mjxWl1md16/VX+MLd8YL0iZo5lD/VodepfUrTGZVtEByWJdEuMba47Vo+8IubeS+p8BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:45:26.247434Z"},"content_sha256":"65cc4f8378f6759fa3674e18e14367d72f1897b40615674d4a5cd4a34c686257","schema_version":"1.0","event_id":"sha256:65cc4f8378f6759fa3674e18e14367d72f1897b40615674d4a5cd4a34c686257"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QWYSPIRMTXD6UINAPZBAGTWXMG/bundle.json","state_url":"https://pith.science/pith/QWYSPIRMTXD6UINAPZBAGTWXMG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QWYSPIRMTXD6UINAPZBAGTWXMG/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":"2026-05-25T21:45:26Z","links":{"resolver":"https://pith.science/pith/QWYSPIRMTXD6UINAPZBAGTWXMG","bundle":"https://pith.science/pith/QWYSPIRMTXD6UINAPZBAGTWXMG/bundle.json","state":"https://pith.science/pith/QWYSPIRMTXD6UINAPZBAGTWXMG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QWYSPIRMTXD6UINAPZBAGTWXMG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QWYSPIRMTXD6UINAPZBAGTWXMG","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":"1e532f782f20b0361d829a21497a73c89799fbad93d75dcdf186bd4ac1352d35","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T16:22:53Z","title_canon_sha256":"5f1c7e2acb6b15f69bddd439d2287cecf87feaf81c5cc82ddff0d03f5ba9704d"},"schema_version":"1.0","source":{"id":"1707.06184","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06184","created_at":"2026-05-18T00:34:47Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06184v1","created_at":"2026-05-18T00:34:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06184","created_at":"2026-05-18T00:34:47Z"},{"alias_kind":"pith_short_12","alias_value":"QWYSPIRMTXD6","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QWYSPIRMTXD6UINA","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QWYSPIRM","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:65cc4f8378f6759fa3674e18e14367d72f1897b40615674d4a5cd4a34c686257","target":"graph","created_at":"2026-05-18T00:34:47Z","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"},"paper":{"abstract_excerpt":"We use Atacama Large Millimeter/submillimeter Array (ALMA) observations of H30$\\alpha$ (231.90 GHz) emission from the low metallicity dwarf galaxy NGC 5253 to measure the star formation rate (SFR) within the galaxy and to test the reliability of SFRs derived from other commonly-used metrics. The H30$\\alpha$ emission, which originates mainly from the central starburst, yields a photoionizing photon production rate of (1.9$\\pm$0.3)$\\times$10$^{52}$ s$^{-1}$ and an SFR of 0.087$\\pm$0.013 M$_\\odot$ yr$^{-1}$ based on conversions that account for the low metallicity of the galaxy and for stellar ro","authors_text":"C. Dickinson, D. Espada, G. A. Fuller, G. J. Bendo, K. Nakanishi, M. J. D'Cruze, R. E. Miura, R. J. Beswick","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T16:22:53Z","title":"Tests of star formation metrics in the low metallicity galaxy NGC 5253 using ALMA observations of H30$\\alpha$ line emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06184","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":"sha256:6938b1dc81c017b73d95f69784472955d9b712d550c4c38b98134849c5e03bea","target":"record","created_at":"2026-05-18T00:34:47Z","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":"1e532f782f20b0361d829a21497a73c89799fbad93d75dcdf186bd4ac1352d35","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-19T16:22:53Z","title_canon_sha256":"5f1c7e2acb6b15f69bddd439d2287cecf87feaf81c5cc82ddff0d03f5ba9704d"},"schema_version":"1.0","source":{"id":"1707.06184","kind":"arxiv","version":1}},"canonical_sha256":"85b127a22c9dc7ea21a07e42034ed76180352255a35aa9d4c7932139446dfcc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85b127a22c9dc7ea21a07e42034ed76180352255a35aa9d4c7932139446dfcc5","first_computed_at":"2026-05-18T00:34:47.044133Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:47.044133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"swjYDib1BVhH6rQqd1urObW4EXYhwh5OD1jlLfuEcnDUwfBKWtTDk8WuoiiY7stBcVtCQ3ox5lDhk2A2mFe8AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:47.044776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.06184","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6938b1dc81c017b73d95f69784472955d9b712d550c4c38b98134849c5e03bea","sha256:65cc4f8378f6759fa3674e18e14367d72f1897b40615674d4a5cd4a34c686257"],"state_sha256":"360e0f9dcee6dddf61d7cdacbcc0f5d03d595baef692fd3d496f5cbf5feb3725"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5Fv1ndzuK69PKZwibZ0urM9j9Esu54gNP2vvRn2aGSXV2MHbkqaHcJpDixJhZdCV15jRI/tA/prdnQAYrabmBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:45:26.250633Z","bundle_sha256":"448afeba65d476c4a44dd4ab3c485dbe2d2efc71c1c14e62bd5c55f9cece6286"}}