{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:E7XIBPW7XL7QW2JXOFQ255J7YN","short_pith_number":"pith:E7XIBPW7","canonical_record":{"source":{"id":"2007.00039","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-30T18:11:31Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"2e61e6627621c338be0de4960c94db7a30972fe3155ff35a619b7dbfd5558312","abstract_canon_sha256":"108f13c71445b3aeae60507d0d9253473c285b545984367cc9b4250e80bd16d9"},"schema_version":"1.0"},"canonical_sha256":"27ee80bedfbaff0b69377161aef53fc368cfdaf1bd12ba11ae17d49f5228c126","source":{"kind":"arxiv","id":"2007.00039","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.00039","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"arxiv_version","alias_value":"2007.00039v2","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.00039","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"pith_short_12","alias_value":"E7XIBPW7XL7Q","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"pith_short_16","alias_value":"E7XIBPW7XL7QW2JX","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"pith_short_8","alias_value":"E7XIBPW7","created_at":"2026-07-05T02:19:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:E7XIBPW7XL7QW2JXOFQ255J7YN","target":"record","payload":{"canonical_record":{"source":{"id":"2007.00039","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-30T18:11:31Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"2e61e6627621c338be0de4960c94db7a30972fe3155ff35a619b7dbfd5558312","abstract_canon_sha256":"108f13c71445b3aeae60507d0d9253473c285b545984367cc9b4250e80bd16d9"},"schema_version":"1.0"},"canonical_sha256":"27ee80bedfbaff0b69377161aef53fc368cfdaf1bd12ba11ae17d49f5228c126","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:19:28.945241Z","signature_b64":"APXlA9f9/cUsJnNFS8TA1/+79bRe3qIMX29hUX4VaHMH82zYFKDJZRZz+zgqjppzzNgEvg/tKS9sCuxakDtNBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"27ee80bedfbaff0b69377161aef53fc368cfdaf1bd12ba11ae17d49f5228c126","last_reissued_at":"2026-07-05T02:19:28.944831Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:19:28.944831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.00039","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":"2026-07-05T02:19:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jrcz2fsjPnLh5ob8qLPErU2vXisz8B6jqROUkYC68/bPXmP1SoMpI7EDARiF/r7j/EdPAtsXoAk91LC8xIf7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T18:18:19.538342Z"},"content_sha256":"46a9e59f92e948a512f06f0d7e65cba2633234ae1d37f7b943e870be9e03d78a","schema_version":"1.0","event_id":"sha256:46a9e59f92e948a512f06f0d7e65cba2633234ae1d37f7b943e870be9e03d78a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:E7XIBPW7XL7QW2JXOFQ255J7YN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The relationship between fine galaxy stellar morphology and star formation activity in cosmological simulations: a deep learning view","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"Annalisa Pillepich, Avishai Dekel, Berta Margalef-Bentabol, Connor Bottrell, Dylan Nelson, Francesco Shankar, Francois Lanusse, Joel Primack, Lars Hernquist, Lorenzo Zanisi, Marc Huertas-Company, Mark Vogelsberger, Vicente Rodriguez-Gomez","submitted_at":"2020-06-30T18:11:31Z","abstract_excerpt":"Hydrodynamical simulations of galaxy formation and evolution attempt to fully model the physics that shapes galaxies. The agreement between the morphology of simulated and real galaxies, and the way the morphological types are distributed across galaxy scaling relations are important probes of our knowledge of galaxy formation physics. Here we propose an unsupervised deep learning approach to perform a stringent test of the fine morphological structure of galaxies coming from the Illustris and IllustrisTNG (TNG100 and TNG50) simulations against observations from a subsample of the Sloan Digita"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.00039","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/2007.00039/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":"2026-07-05T02:19:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SYnut1CcCphUfxn178dLRPVjOo72hg+3SARckr8Y9n0w7RnD8l3hDkMb72FcZNauUMU89rv5ZBYFT0Mh1q0bCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T18:18:19.538837Z"},"content_sha256":"963e47a725213f188ebd01a66f5c3a49a60bc241895fe8ef1db6d7e8a2349b4e","schema_version":"1.0","event_id":"sha256:963e47a725213f188ebd01a66f5c3a49a60bc241895fe8ef1db6d7e8a2349b4e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E7XIBPW7XL7QW2JXOFQ255J7YN/bundle.json","state_url":"https://pith.science/pith/E7XIBPW7XL7QW2JXOFQ255J7YN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E7XIBPW7XL7QW2JXOFQ255J7YN/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":"2026-08-12T18:18:19Z","links":{"resolver":"https://pith.science/pith/E7XIBPW7XL7QW2JXOFQ255J7YN","bundle":"https://pith.science/pith/E7XIBPW7XL7QW2JXOFQ255J7YN/bundle.json","state":"https://pith.science/pith/E7XIBPW7XL7QW2JXOFQ255J7YN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E7XIBPW7XL7QW2JXOFQ255J7YN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:E7XIBPW7XL7QW2JXOFQ255J7YN","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":"108f13c71445b3aeae60507d0d9253473c285b545984367cc9b4250e80bd16d9","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-30T18:11:31Z","title_canon_sha256":"2e61e6627621c338be0de4960c94db7a30972fe3155ff35a619b7dbfd5558312"},"schema_version":"1.0","source":{"id":"2007.00039","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.00039","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"arxiv_version","alias_value":"2007.00039v2","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.00039","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"pith_short_12","alias_value":"E7XIBPW7XL7Q","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"pith_short_16","alias_value":"E7XIBPW7XL7QW2JX","created_at":"2026-07-05T02:19:28Z"},{"alias_kind":"pith_short_8","alias_value":"E7XIBPW7","created_at":"2026-07-05T02:19:28Z"}],"graph_snapshots":[{"event_id":"sha256:963e47a725213f188ebd01a66f5c3a49a60bc241895fe8ef1db6d7e8a2349b4e","target":"graph","created_at":"2026-07-05T02:19:28Z","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/2007.00039/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hydrodynamical simulations of galaxy formation and evolution attempt to fully model the physics that shapes galaxies. The agreement between the morphology of simulated and real galaxies, and the way the morphological types are distributed across galaxy scaling relations are important probes of our knowledge of galaxy formation physics. Here we propose an unsupervised deep learning approach to perform a stringent test of the fine morphological structure of galaxies coming from the Illustris and IllustrisTNG (TNG100 and TNG50) simulations against observations from a subsample of the Sloan Digita","authors_text":"Annalisa Pillepich, Avishai Dekel, Berta Margalef-Bentabol, Connor Bottrell, Dylan Nelson, Francesco Shankar, Francois Lanusse, Joel Primack, Lars Hernquist, Lorenzo Zanisi, Marc Huertas-Company, Mark Vogelsberger, Vicente Rodriguez-Gomez","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-30T18:11:31Z","title":"The relationship between fine galaxy stellar morphology and star formation activity in cosmological simulations: a deep learning view"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.00039","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":"sha256:46a9e59f92e948a512f06f0d7e65cba2633234ae1d37f7b943e870be9e03d78a","target":"record","created_at":"2026-07-05T02:19:28Z","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":"108f13c71445b3aeae60507d0d9253473c285b545984367cc9b4250e80bd16d9","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-30T18:11:31Z","title_canon_sha256":"2e61e6627621c338be0de4960c94db7a30972fe3155ff35a619b7dbfd5558312"},"schema_version":"1.0","source":{"id":"2007.00039","kind":"arxiv","version":2}},"canonical_sha256":"27ee80bedfbaff0b69377161aef53fc368cfdaf1bd12ba11ae17d49f5228c126","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27ee80bedfbaff0b69377161aef53fc368cfdaf1bd12ba11ae17d49f5228c126","first_computed_at":"2026-07-05T02:19:28.944831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:19:28.944831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"APXlA9f9/cUsJnNFS8TA1/+79bRe3qIMX29hUX4VaHMH82zYFKDJZRZz+zgqjppzzNgEvg/tKS9sCuxakDtNBA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:19:28.945241Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.00039","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46a9e59f92e948a512f06f0d7e65cba2633234ae1d37f7b943e870be9e03d78a","sha256:963e47a725213f188ebd01a66f5c3a49a60bc241895fe8ef1db6d7e8a2349b4e"],"state_sha256":"9f9a2f81f1b98e4e73be0af3855460daa7c831ccdf999865333b4ee7ec59de24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GIPL3to+d2EcQVr3k0WsrRbnytwamfltvIqkE/TJq/XHHslAL/kDFAPOjT/1BBOSmlnvt8WNID+1quLayAZ5Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T18:18:19.544107Z","bundle_sha256":"4c34ffe5c5a6d98e3dd073f8ecc1afaf6cf9a0c4156e7ec850109c2658df6d51"}}