{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:BFFCQIPS3EU7EQGJYYFCM7GCMJ","short_pith_number":"pith:BFFCQIPS","canonical_record":{"source":{"id":"1705.02340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-05T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"eb268744c80f53384c87c65b47463c6aac717533fe8695bfebf6ed61499e7928","abstract_canon_sha256":"b5cc71a1606c2014bf599715fb1e1b2855129023baa127826ad917b94f5dfaf6"},"schema_version":"1.0"},"canonical_sha256":"094a2821f2d929f240c9c60a267cc2625e17ccb0300e123bd447be2a92b1d601","source":{"kind":"arxiv","id":"1705.02340","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02340","created_at":"2026-05-18T00:44:56Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02340v1","created_at":"2026-05-18T00:44:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02340","created_at":"2026-05-18T00:44:56Z"},{"alias_kind":"pith_short_12","alias_value":"BFFCQIPS3EU7","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BFFCQIPS3EU7EQGJ","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BFFCQIPS","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:BFFCQIPS3EU7EQGJYYFCM7GCMJ","target":"record","payload":{"canonical_record":{"source":{"id":"1705.02340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-05T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"eb268744c80f53384c87c65b47463c6aac717533fe8695bfebf6ed61499e7928","abstract_canon_sha256":"b5cc71a1606c2014bf599715fb1e1b2855129023baa127826ad917b94f5dfaf6"},"schema_version":"1.0"},"canonical_sha256":"094a2821f2d929f240c9c60a267cc2625e17ccb0300e123bd447be2a92b1d601","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:44:56.829784Z","signature_b64":"drPLKNCJHqKaLEK3dqoEsARNXmGNWWkjPKnEUG8xDdrvtu5VzoJ119+8mSF8BVsDy1khIe1lM+7ji2ndA3rwDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"094a2821f2d929f240c9c60a267cc2625e17ccb0300e123bd447be2a92b1d601","last_reissued_at":"2026-05-18T00:44:56.829163Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:44:56.829163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.02340","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":"2026-05-18T00:44:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"10YPx3WNAhP5Mmmrfv1CG8XDLdPxzL0agNmgW19CBvcZNH0acywWhKKIC76H8Fp2JA8u16QLYzSSRx0rDSXiDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:50:50.246019Z"},"content_sha256":"71bbbbab2b437ae8afc9623a39f01dcaacda94288a2cf4543e6614af7b8291bf","schema_version":"1.0","event_id":"sha256:71bbbbab2b437ae8afc9623a39f01dcaacda94288a2cf4543e6614af7b8291bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:BFFCQIPS3EU7EQGJYYFCM7GCMJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using dust, gas and stellar mass selected samples to probe dust sources and sinks in low metallicity galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"C.J.R. Clark, E.L. Gomez, H.L. Gomez, L. Dunne, M. Baes, M. Lara-L\\'opez, M. Owers, P. Cigan, P. De Vis, S. Maddox, S.P. Schofield","submitted_at":"2017-05-05T18:00:00Z","abstract_excerpt":"We combine samples of nearby galaxies with Herschel photometry selected on their dust, metal, HI, and stellar mass content, and compare these to chemical evolution models in order to discriminate between different dust sources. In a companion paper, we used a HI-selected sample of nearby galaxies to reveal a sub-sample of very gas rich (gas fraction > 80 per cent) sources with dust masses significantly below predictions from simple chemical evolution models, and well below $M_d/M_*$ and $M_d/M_{gas}$ scaling relations seen in dust and stellar-selected samples of local galaxies. We use a chemic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02340","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":"2026-05-18T00:44:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MBlNBpUHBD/UyjVRpiR/5N3H3i/uR/1QQy2FbsdAbG1oAwUKGYIq1yy8lgT67EHqL7meb7UsY3b/JBEZLcl9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T08:50:50.246734Z"},"content_sha256":"5a620fcee956e289ef4de9d5ab70410a65726107ada9e356760ce404ab82e60a","schema_version":"1.0","event_id":"sha256:5a620fcee956e289ef4de9d5ab70410a65726107ada9e356760ce404ab82e60a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ/bundle.json","state_url":"https://pith.science/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ/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":"2026-05-25T08:50:50Z","links":{"resolver":"https://pith.science/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ","bundle":"https://pith.science/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ/bundle.json","state":"https://pith.science/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BFFCQIPS3EU7EQGJYYFCM7GCMJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BFFCQIPS3EU7EQGJYYFCM7GCMJ","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":"b5cc71a1606c2014bf599715fb1e1b2855129023baa127826ad917b94f5dfaf6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-05T18:00:00Z","title_canon_sha256":"eb268744c80f53384c87c65b47463c6aac717533fe8695bfebf6ed61499e7928"},"schema_version":"1.0","source":{"id":"1705.02340","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02340","created_at":"2026-05-18T00:44:56Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02340v1","created_at":"2026-05-18T00:44:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02340","created_at":"2026-05-18T00:44:56Z"},{"alias_kind":"pith_short_12","alias_value":"BFFCQIPS3EU7","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BFFCQIPS3EU7EQGJ","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BFFCQIPS","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:5a620fcee956e289ef4de9d5ab70410a65726107ada9e356760ce404ab82e60a","target":"graph","created_at":"2026-05-18T00:44:56Z","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 combine samples of nearby galaxies with Herschel photometry selected on their dust, metal, HI, and stellar mass content, and compare these to chemical evolution models in order to discriminate between different dust sources. In a companion paper, we used a HI-selected sample of nearby galaxies to reveal a sub-sample of very gas rich (gas fraction > 80 per cent) sources with dust masses significantly below predictions from simple chemical evolution models, and well below $M_d/M_*$ and $M_d/M_{gas}$ scaling relations seen in dust and stellar-selected samples of local galaxies. We use a chemic","authors_text":"C.J.R. Clark, E.L. Gomez, H.L. Gomez, L. Dunne, M. Baes, M. Lara-L\\'opez, M. Owers, P. Cigan, P. De Vis, S. Maddox, S.P. Schofield","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-05T18:00:00Z","title":"Using dust, gas and stellar mass selected samples to probe dust sources and sinks in low metallicity galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02340","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":"sha256:71bbbbab2b437ae8afc9623a39f01dcaacda94288a2cf4543e6614af7b8291bf","target":"record","created_at":"2026-05-18T00:44:56Z","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":"b5cc71a1606c2014bf599715fb1e1b2855129023baa127826ad917b94f5dfaf6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-05T18:00:00Z","title_canon_sha256":"eb268744c80f53384c87c65b47463c6aac717533fe8695bfebf6ed61499e7928"},"schema_version":"1.0","source":{"id":"1705.02340","kind":"arxiv","version":1}},"canonical_sha256":"094a2821f2d929f240c9c60a267cc2625e17ccb0300e123bd447be2a92b1d601","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"094a2821f2d929f240c9c60a267cc2625e17ccb0300e123bd447be2a92b1d601","first_computed_at":"2026-05-18T00:44:56.829163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:56.829163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"drPLKNCJHqKaLEK3dqoEsARNXmGNWWkjPKnEUG8xDdrvtu5VzoJ119+8mSF8BVsDy1khIe1lM+7ji2ndA3rwDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:56.829784Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.02340","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71bbbbab2b437ae8afc9623a39f01dcaacda94288a2cf4543e6614af7b8291bf","sha256:5a620fcee956e289ef4de9d5ab70410a65726107ada9e356760ce404ab82e60a"],"state_sha256":"8a42e6011b2423f8602fdcb9016e48c9c894eae0a9453e9aa8df1c34a8ae0335"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZQKoFWf7J/5Kq+bfAUzqMUXyNkI18vyp4AI0O/l95PR8FqZ+lUJGEHdzp3zlTIaJTAIj80Xk3AWYmHwPhHOMDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T08:50:50.249974Z","bundle_sha256":"6b54f996b69bce8bb4e5add20008b4e4a799388d1c306214cf8a2a56025e40a0"}}