{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:5H7N5HPI54PAYWCVCZW526CS47","short_pith_number":"pith:5H7N5HPI","canonical_record":{"source":{"id":"0806.4189","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-26T09:19:50Z","cross_cats_sorted":[],"title_canon_sha256":"cd7bb4aed782460c777f4d237d6008e6edaeae7691ad7de8e88b559c25d6ead8","abstract_canon_sha256":"442d7eff41ef77ec37da5df6eb036ec4e18be6b8da5802236b5014c5c157f70c"},"schema_version":"1.0"},"canonical_sha256":"e9fede9de8ef1e0c5855166ddd7852e7db56b7f5c05f536996bcfcb5effaa63e","source":{"kind":"arxiv","id":"0806.4189","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.4189","created_at":"2026-05-18T02:15:46Z"},{"alias_kind":"arxiv_version","alias_value":"0806.4189v2","created_at":"2026-05-18T02:15:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.4189","created_at":"2026-05-18T02:15:46Z"},{"alias_kind":"pith_short_12","alias_value":"5H7N5HPI54PA","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"5H7N5HPI54PAYWCV","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"5H7N5HPI","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:5H7N5HPI54PAYWCVCZW526CS47","target":"record","payload":{"canonical_record":{"source":{"id":"0806.4189","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-26T09:19:50Z","cross_cats_sorted":[],"title_canon_sha256":"cd7bb4aed782460c777f4d237d6008e6edaeae7691ad7de8e88b559c25d6ead8","abstract_canon_sha256":"442d7eff41ef77ec37da5df6eb036ec4e18be6b8da5802236b5014c5c157f70c"},"schema_version":"1.0"},"canonical_sha256":"e9fede9de8ef1e0c5855166ddd7852e7db56b7f5c05f536996bcfcb5effaa63e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:46.074287Z","signature_b64":"V5EECaKl/D+N+UmAvdhDxtXeEALGE5ze+NcSjxhaOnTuO6QXCrZa8D/9LOtLjG+PjnS9XyxLMjfooxw7RhwuBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9fede9de8ef1e0c5855166ddd7852e7db56b7f5c05f536996bcfcb5effaa63e","last_reissued_at":"2026-05-18T02:15:46.073594Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:46.073594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.4189","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":"2026-05-18T02:15:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Xe6c0fB19BHlFBriazx6CfEjYi+e4yB8VTV94d1iu+jhsM1faPpdfKCKGpVdmVvyTz0osRmpgLDEcR03EfrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T03:43:26.311045Z"},"content_sha256":"75ca7040d460939ad914d43589a7e8fcde4cfcd3f950f6e36829f06bb44af96c","schema_version":"1.0","event_id":"sha256:75ca7040d460939ad914d43589a7e8fcde4cfcd3f950f6e36829f06bb44af96c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:5H7N5HPI54PAYWCVCZW526CS47","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Galaxy morphology in the LambdaCDM cosmology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. S. Frenk, O. H. Parry, V. R. Eke","submitted_at":"2008-06-26T09:19:50Z","abstract_excerpt":"We investigate the origins of galaxy morphology (defined by bulge-to-total K-band luminosity) in the LambdaCDM cosmology using two galaxy formation models ,based on the Millennium simulation, by Bower et al. (the Durham model) and De Lucia & Blaizot (the MPA model). There are many similarities, but also fundamental disagreements in the predictions of the two models for galaxy morphology. For example, taking into account uncertainties in the available observational data, both produce a realistic morphological mix today, but its evolution is very different. A main cause of this and other differe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.4189","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":"2026-05-18T02:15:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mmkrg0U3eB1feuX4My4xFxhmc1eD9UnbZBz3+Ex3LdNoAhouRFpTyeltcmHvNtQGA9iwA0frQRaC7yBfglJ0DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T03:43:26.311684Z"},"content_sha256":"b2fa99e7d4a6e397545568efca33eb91f706ce1649d9a2420e629fc3533e28cc","schema_version":"1.0","event_id":"sha256:b2fa99e7d4a6e397545568efca33eb91f706ce1649d9a2420e629fc3533e28cc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5H7N5HPI54PAYWCVCZW526CS47/bundle.json","state_url":"https://pith.science/pith/5H7N5HPI54PAYWCVCZW526CS47/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5H7N5HPI54PAYWCVCZW526CS47/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":"2026-05-24T03:43:26Z","links":{"resolver":"https://pith.science/pith/5H7N5HPI54PAYWCVCZW526CS47","bundle":"https://pith.science/pith/5H7N5HPI54PAYWCVCZW526CS47/bundle.json","state":"https://pith.science/pith/5H7N5HPI54PAYWCVCZW526CS47/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5H7N5HPI54PAYWCVCZW526CS47/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:5H7N5HPI54PAYWCVCZW526CS47","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":"442d7eff41ef77ec37da5df6eb036ec4e18be6b8da5802236b5014c5c157f70c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-26T09:19:50Z","title_canon_sha256":"cd7bb4aed782460c777f4d237d6008e6edaeae7691ad7de8e88b559c25d6ead8"},"schema_version":"1.0","source":{"id":"0806.4189","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.4189","created_at":"2026-05-18T02:15:46Z"},{"alias_kind":"arxiv_version","alias_value":"0806.4189v2","created_at":"2026-05-18T02:15:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.4189","created_at":"2026-05-18T02:15:46Z"},{"alias_kind":"pith_short_12","alias_value":"5H7N5HPI54PA","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"5H7N5HPI54PAYWCV","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"5H7N5HPI","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:b2fa99e7d4a6e397545568efca33eb91f706ce1649d9a2420e629fc3533e28cc","target":"graph","created_at":"2026-05-18T02:15:46Z","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 investigate the origins of galaxy morphology (defined by bulge-to-total K-band luminosity) in the LambdaCDM cosmology using two galaxy formation models ,based on the Millennium simulation, by Bower et al. (the Durham model) and De Lucia & Blaizot (the MPA model). There are many similarities, but also fundamental disagreements in the predictions of the two models for galaxy morphology. For example, taking into account uncertainties in the available observational data, both produce a realistic morphological mix today, but its evolution is very different. A main cause of this and other differe","authors_text":"C. S. Frenk, O. H. Parry, V. R. Eke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-26T09:19:50Z","title":"Galaxy morphology in the LambdaCDM cosmology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.4189","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":"sha256:75ca7040d460939ad914d43589a7e8fcde4cfcd3f950f6e36829f06bb44af96c","target":"record","created_at":"2026-05-18T02:15:46Z","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":"442d7eff41ef77ec37da5df6eb036ec4e18be6b8da5802236b5014c5c157f70c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-26T09:19:50Z","title_canon_sha256":"cd7bb4aed782460c777f4d237d6008e6edaeae7691ad7de8e88b559c25d6ead8"},"schema_version":"1.0","source":{"id":"0806.4189","kind":"arxiv","version":2}},"canonical_sha256":"e9fede9de8ef1e0c5855166ddd7852e7db56b7f5c05f536996bcfcb5effaa63e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9fede9de8ef1e0c5855166ddd7852e7db56b7f5c05f536996bcfcb5effaa63e","first_computed_at":"2026-05-18T02:15:46.073594Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:46.073594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V5EECaKl/D+N+UmAvdhDxtXeEALGE5ze+NcSjxhaOnTuO6QXCrZa8D/9LOtLjG+PjnS9XyxLMjfooxw7RhwuBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:46.074287Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.4189","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:75ca7040d460939ad914d43589a7e8fcde4cfcd3f950f6e36829f06bb44af96c","sha256:b2fa99e7d4a6e397545568efca33eb91f706ce1649d9a2420e629fc3533e28cc"],"state_sha256":"a98299bb818cd1f69f6e2cf92c81ab22b30165f8323c36e5ec1c0fa0567ca445"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nDGtmdI1o3XuewU9btu0gnx0a9mc4pvliXRFLK5RowW0OrT3Ybj9q7XWdq+H//YBCHLGf8uiLJuyKaqHuPj8Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T03:43:26.314815Z","bundle_sha256":"3febe933bbc829dd2413d8403114abd49e2ed19611bac658f8e5644753d16b24"}}