{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TMUCFJDPUMVTMGSRVU5FZBGRSO","short_pith_number":"pith:TMUCFJDP","canonical_record":{"source":{"id":"1610.01594","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-05T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"1e749af81b906bd573cfb09f22f335b0ed841be1a03b0f89467571d9a436b8a2","abstract_canon_sha256":"08a2a745b38fdac637e300677093857b9d0ea408499ad884a0d7156477d920fd"},"schema_version":"1.0"},"canonical_sha256":"9b2822a46fa32b361a51ad3a5c84d193b16c3e54c46dc935e4bee27f16c858cf","source":{"kind":"arxiv","id":"1610.01594","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.01594","created_at":"2026-05-18T00:52:14Z"},{"alias_kind":"arxiv_version","alias_value":"1610.01594v2","created_at":"2026-05-18T00:52:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.01594","created_at":"2026-05-18T00:52:14Z"},{"alias_kind":"pith_short_12","alias_value":"TMUCFJDPUMVT","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TMUCFJDPUMVTMGSR","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TMUCFJDP","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TMUCFJDPUMVTMGSRVU5FZBGRSO","target":"record","payload":{"canonical_record":{"source":{"id":"1610.01594","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-05T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"1e749af81b906bd573cfb09f22f335b0ed841be1a03b0f89467571d9a436b8a2","abstract_canon_sha256":"08a2a745b38fdac637e300677093857b9d0ea408499ad884a0d7156477d920fd"},"schema_version":"1.0"},"canonical_sha256":"9b2822a46fa32b361a51ad3a5c84d193b16c3e54c46dc935e4bee27f16c858cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:14.602885Z","signature_b64":"Y6FvajJSoeNtTOXZGOZrVdDdqJBaaI66cf6TdYx/5hvxusKO4PLc7s6vGPxHk8iOjMP6Tn+H11FACoAMD5bRDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9b2822a46fa32b361a51ad3a5c84d193b16c3e54c46dc935e4bee27f16c858cf","last_reissued_at":"2026-05-18T00:52:14.602227Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:14.602227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.01594","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":"2026-05-18T00:52:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SuC0hr4rl4U0m6y+gwBwEh7mbs41wFffyyweS+ivem63J7gM/gnG+n/oMsEf9ni5YlVVR8ojqzzkFxQVNvcaAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:13:32.644240Z"},"content_sha256":"df542f131b1a95cf658c7b074bc3e352373145dd98814414fc1aefb5cf3b5b0e","schema_version":"1.0","event_id":"sha256:df542f131b1a95cf658c7b074bc3e352373145dd98814414fc1aefb5cf3b5b0e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TMUCFJDPUMVTMGSRVU5FZBGRSO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Properties of HI discs in the Auriga cosmological simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Carlos Frenk (Durham), Facundo G\\'omez (MPA), Federico Marinacci (MIT), Robert Grand (HITS), R\\\"udiger Pakmor (HITS), Simon White (MPA), Volker Springel (HITS/ARI)","submitted_at":"2016-10-05T20:00:00Z","abstract_excerpt":"We analyse the properties of the HI gas distribution in the Auriga project, a set of magnetohydrodynamic cosmological simulations performed with the moving-mesh code AREPO and a physics model for galaxy formation that succeeds in forming realistic late-type galaxies in the 30 Milky Way-sized haloes simulated in this project. We use a simple approach to estimate the neutral hydrogen fraction in our simulation set, which treats low-density and star-forming gas separately, and we explore two different prescriptions to subtract the contribution of molecular hydrogen from the total HI content. The "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01594","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":""},"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":"2026-05-18T00:52:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aKCMnL8lKIO7GQ6yljNpENxWU4y5ZN5CE6dDj24qD2IaFaii/O5cobSrPAkY/tlfGVxSlRiUNiXVCWCpbsD7Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T10:13:32.644690Z"},"content_sha256":"542b2769412556f378df22305d0cd8cd876dc58e9552ec5fce649505de8b756f","schema_version":"1.0","event_id":"sha256:542b2769412556f378df22305d0cd8cd876dc58e9552ec5fce649505de8b756f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO/bundle.json","state_url":"https://pith.science/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO/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":"2026-06-12T10:13:32Z","links":{"resolver":"https://pith.science/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO","bundle":"https://pith.science/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO/bundle.json","state":"https://pith.science/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TMUCFJDPUMVTMGSRVU5FZBGRSO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TMUCFJDPUMVTMGSRVU5FZBGRSO","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":"08a2a745b38fdac637e300677093857b9d0ea408499ad884a0d7156477d920fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-05T20:00:00Z","title_canon_sha256":"1e749af81b906bd573cfb09f22f335b0ed841be1a03b0f89467571d9a436b8a2"},"schema_version":"1.0","source":{"id":"1610.01594","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.01594","created_at":"2026-05-18T00:52:14Z"},{"alias_kind":"arxiv_version","alias_value":"1610.01594v2","created_at":"2026-05-18T00:52:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.01594","created_at":"2026-05-18T00:52:14Z"},{"alias_kind":"pith_short_12","alias_value":"TMUCFJDPUMVT","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TMUCFJDPUMVTMGSR","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TMUCFJDP","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:542b2769412556f378df22305d0cd8cd876dc58e9552ec5fce649505de8b756f","target":"graph","created_at":"2026-05-18T00:52:14Z","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"},"paper":{"abstract_excerpt":"We analyse the properties of the HI gas distribution in the Auriga project, a set of magnetohydrodynamic cosmological simulations performed with the moving-mesh code AREPO and a physics model for galaxy formation that succeeds in forming realistic late-type galaxies in the 30 Milky Way-sized haloes simulated in this project. We use a simple approach to estimate the neutral hydrogen fraction in our simulation set, which treats low-density and star-forming gas separately, and we explore two different prescriptions to subtract the contribution of molecular hydrogen from the total HI content. The ","authors_text":"Carlos Frenk (Durham), Facundo G\\'omez (MPA), Federico Marinacci (MIT), Robert Grand (HITS), R\\\"udiger Pakmor (HITS), Simon White (MPA), Volker Springel (HITS/ARI)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-05T20:00:00Z","title":"Properties of HI discs in the Auriga cosmological simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.01594","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:df542f131b1a95cf658c7b074bc3e352373145dd98814414fc1aefb5cf3b5b0e","target":"record","created_at":"2026-05-18T00:52:14Z","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":"08a2a745b38fdac637e300677093857b9d0ea408499ad884a0d7156477d920fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-05T20:00:00Z","title_canon_sha256":"1e749af81b906bd573cfb09f22f335b0ed841be1a03b0f89467571d9a436b8a2"},"schema_version":"1.0","source":{"id":"1610.01594","kind":"arxiv","version":2}},"canonical_sha256":"9b2822a46fa32b361a51ad3a5c84d193b16c3e54c46dc935e4bee27f16c858cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9b2822a46fa32b361a51ad3a5c84d193b16c3e54c46dc935e4bee27f16c858cf","first_computed_at":"2026-05-18T00:52:14.602227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:14.602227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y6FvajJSoeNtTOXZGOZrVdDdqJBaaI66cf6TdYx/5hvxusKO4PLc7s6vGPxHk8iOjMP6Tn+H11FACoAMD5bRDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:14.602885Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.01594","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df542f131b1a95cf658c7b074bc3e352373145dd98814414fc1aefb5cf3b5b0e","sha256:542b2769412556f378df22305d0cd8cd876dc58e9552ec5fce649505de8b756f"],"state_sha256":"f501fec64efba2b91a21b7becdaa82432c47f73fc0e0dc4e14041e7968af9495"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ujHbArXDt7gM6eMXOMlGVftHTlowJ1w9pvAdtwys1OesqfZI6HkENLcwDsYddFyQ0xncSMkfHGRE85gsJbsoBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T10:13:32.647947Z","bundle_sha256":"7f8e15aee9a3c740e377a32ad4aeb61cf473b98cda0d4b9ad61d57b4fb2c57b5"}}