{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:OI7N3H3SQU6UYIX2NAIKSLV6PX","short_pith_number":"pith:OI7N3H3S","canonical_record":{"source":{"id":"1904.01619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-02T18:47:42Z","cross_cats_sorted":[],"title_canon_sha256":"871bd8fd82e6ed6e37daa9215956d427f1da35ebd3bb68785ffca843613f7514","abstract_canon_sha256":"29e3e6b16596ea981e4e7b139aa6f759d597b1fc1743daa20eae8aaf65c5f22e"},"schema_version":"1.0"},"canonical_sha256":"723edd9f72853d4c22fa6810a92ebe7de3cf23557c0f6a2a36a0b8f769fa60d1","source":{"kind":"arxiv","id":"1904.01619","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01619","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01619v2","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01619","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"pith_short_12","alias_value":"OI7N3H3SQU6U","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"OI7N3H3SQU6UYIX2","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"OI7N3H3S","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:OI7N3H3SQU6UYIX2NAIKSLV6PX","target":"record","payload":{"canonical_record":{"source":{"id":"1904.01619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-02T18:47:42Z","cross_cats_sorted":[],"title_canon_sha256":"871bd8fd82e6ed6e37daa9215956d427f1da35ebd3bb68785ffca843613f7514","abstract_canon_sha256":"29e3e6b16596ea981e4e7b139aa6f759d597b1fc1743daa20eae8aaf65c5f22e"},"schema_version":"1.0"},"canonical_sha256":"723edd9f72853d4c22fa6810a92ebe7de3cf23557c0f6a2a36a0b8f769fa60d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:09.177714Z","signature_b64":"hhNdshzOvaitCblkkqxx+fRc14vaP8coI6e2hd/mk7ZXIQUTbNSpTpk5x6kIyHa87qXD8vu3psa4ysX6xB4ACQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"723edd9f72853d4c22fa6810a92ebe7de3cf23557c0f6a2a36a0b8f769fa60d1","last_reissued_at":"2026-05-17T23:41:09.176965Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:09.176965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.01619","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":"2026-05-17T23:41:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Y84HTkaw6acWGhxHgvA11TTz3sOFlzR4LDOP6cLEv2XhQbbM6EiVfkBbIgkxc2T/F7UJkwKzw3T36hjBFXJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:59:11.300358Z"},"content_sha256":"da3f5e11d70b02068af2a93642cd0897399c480e4672e7cece2d631142e9dbf2","schema_version":"1.0","event_id":"sha256:da3f5e11d70b02068af2a93642cd0897399c480e4672e7cece2d631142e9dbf2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:OI7N3H3SQU6UYIX2NAIKSLV6PX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dark-ages Reionization and Galaxy Formation Simulation -- XVII. Sizes, angular momenta and morphologies of high redshift galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Gregory B. Poole, J. Stuart B. Wyithe, Madeline A. Marshall, Simon J. Mutch, YuXiang Qin","submitted_at":"2019-04-02T18:47:42Z","abstract_excerpt":"We study the sizes, angular momenta and morphologies of high-redshift galaxies using an update of the Meraxes semi-analytic galaxy evolution model. Our model successfully reproduces a range of observations from redshifts $z=0$-$10$. We find that the effective radius of a galaxy disc scales with UV luminosity as $R_e\\propto L_{\\textrm{UV}}^{0.33}$ at $z=5$-$10$, and with stellar mass as $R_e\\propto M_\\ast^{0.24}$ at $z=5$ but with a slope that increases at higher redshifts. Our model predicts that the median galaxy size scales with redshift as $R_e \\propto (1+z)^{-m}$, where $m=1.98\\pm0.07$ for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01619","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":"2026-05-17T23:41:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HiGsgKhsfKHOJCRzyyYOvx9JlXlXge17vK0ZnNvFtJ5h04QVxXiuoQuAXbAxijqKAPEPm1tnrj6TRqZVNB3ICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:59:11.300701Z"},"content_sha256":"58ab9783bdac9d76eecb8a33393fd5f64cb167523e2938a8f3d5e03e8835a3d3","schema_version":"1.0","event_id":"sha256:58ab9783bdac9d76eecb8a33393fd5f64cb167523e2938a8f3d5e03e8835a3d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX/bundle.json","state_url":"https://pith.science/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX/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":"2026-06-01T15:59:11Z","links":{"resolver":"https://pith.science/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX","bundle":"https://pith.science/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX/bundle.json","state":"https://pith.science/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OI7N3H3SQU6UYIX2NAIKSLV6PX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OI7N3H3SQU6UYIX2NAIKSLV6PX","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":"29e3e6b16596ea981e4e7b139aa6f759d597b1fc1743daa20eae8aaf65c5f22e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-02T18:47:42Z","title_canon_sha256":"871bd8fd82e6ed6e37daa9215956d427f1da35ebd3bb68785ffca843613f7514"},"schema_version":"1.0","source":{"id":"1904.01619","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01619","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01619v2","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01619","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"pith_short_12","alias_value":"OI7N3H3SQU6U","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"OI7N3H3SQU6UYIX2","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"OI7N3H3S","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:58ab9783bdac9d76eecb8a33393fd5f64cb167523e2938a8f3d5e03e8835a3d3","target":"graph","created_at":"2026-05-17T23:41:09Z","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 study the sizes, angular momenta and morphologies of high-redshift galaxies using an update of the Meraxes semi-analytic galaxy evolution model. Our model successfully reproduces a range of observations from redshifts $z=0$-$10$. We find that the effective radius of a galaxy disc scales with UV luminosity as $R_e\\propto L_{\\textrm{UV}}^{0.33}$ at $z=5$-$10$, and with stellar mass as $R_e\\propto M_\\ast^{0.24}$ at $z=5$ but with a slope that increases at higher redshifts. Our model predicts that the median galaxy size scales with redshift as $R_e \\propto (1+z)^{-m}$, where $m=1.98\\pm0.07$ for","authors_text":"Gregory B. Poole, J. Stuart B. Wyithe, Madeline A. Marshall, Simon J. Mutch, YuXiang Qin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-02T18:47:42Z","title":"Dark-ages Reionization and Galaxy Formation Simulation -- XVII. Sizes, angular momenta and morphologies of high redshift galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01619","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:da3f5e11d70b02068af2a93642cd0897399c480e4672e7cece2d631142e9dbf2","target":"record","created_at":"2026-05-17T23:41:09Z","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":"29e3e6b16596ea981e4e7b139aa6f759d597b1fc1743daa20eae8aaf65c5f22e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-02T18:47:42Z","title_canon_sha256":"871bd8fd82e6ed6e37daa9215956d427f1da35ebd3bb68785ffca843613f7514"},"schema_version":"1.0","source":{"id":"1904.01619","kind":"arxiv","version":2}},"canonical_sha256":"723edd9f72853d4c22fa6810a92ebe7de3cf23557c0f6a2a36a0b8f769fa60d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"723edd9f72853d4c22fa6810a92ebe7de3cf23557c0f6a2a36a0b8f769fa60d1","first_computed_at":"2026-05-17T23:41:09.176965Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:09.176965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hhNdshzOvaitCblkkqxx+fRc14vaP8coI6e2hd/mk7ZXIQUTbNSpTpk5x6kIyHa87qXD8vu3psa4ysX6xB4ACQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:09.177714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.01619","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da3f5e11d70b02068af2a93642cd0897399c480e4672e7cece2d631142e9dbf2","sha256:58ab9783bdac9d76eecb8a33393fd5f64cb167523e2938a8f3d5e03e8835a3d3"],"state_sha256":"dd9ae95ad12812641e4588667c6079f1ceec7a0b51048a6b495fa5044a627600"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"msSKrnnk40o0FuXBow0p/gMZW4I9tcRNhqy8Eukx5KHXuG4/zXI2m4wPOnchkfWOnx7evA8kJZp3TdIunUT4Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T15:59:11.302517Z","bundle_sha256":"7e76ebe0665ed5d6bfce042fb4fecb9b2f940779731f6d5dc34f044e176560bb"}}