{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:OW4HIBCHCULVIJI6AG43WIJ554","short_pith_number":"pith:OW4HIBCH","canonical_record":{"source":{"id":"1610.07592","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T19:59:45Z","cross_cats_sorted":[],"title_canon_sha256":"cab8c73e4ab63d34f96da0d2fd93745ba7f73631fddc1e0d3657b0416fd5cc02","abstract_canon_sha256":"cb711ebe5a356974ebafadeec58a8b4d0e6b4e1a64f621ea33965e4090b153f1"},"schema_version":"1.0"},"canonical_sha256":"75b8740447151754251e01b9bb213def14c78f5fd5f2c50829966f4c0000f266","source":{"kind":"arxiv","id":"1610.07592","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07592","created_at":"2026-05-18T00:40:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07592v2","created_at":"2026-05-18T00:40:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07592","created_at":"2026-05-18T00:40:51Z"},{"alias_kind":"pith_short_12","alias_value":"OW4HIBCHCULV","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OW4HIBCHCULVIJI6","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OW4HIBCH","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:OW4HIBCHCULVIJI6AG43WIJ554","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07592","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T19:59:45Z","cross_cats_sorted":[],"title_canon_sha256":"cab8c73e4ab63d34f96da0d2fd93745ba7f73631fddc1e0d3657b0416fd5cc02","abstract_canon_sha256":"cb711ebe5a356974ebafadeec58a8b4d0e6b4e1a64f621ea33965e4090b153f1"},"schema_version":"1.0"},"canonical_sha256":"75b8740447151754251e01b9bb213def14c78f5fd5f2c50829966f4c0000f266","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:51.505033Z","signature_b64":"owLoG67eXISkhFayKO0VyRRTKxuZP6dfBNYamqPsCnEWJL+zFXSRYkTuBU3y+2UTvCwq9My2D5/21GZ0VlLwCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75b8740447151754251e01b9bb213def14c78f5fd5f2c50829966f4c0000f266","last_reissued_at":"2026-05-18T00:40:51.504271Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:51.504271Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07592","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":"2026-05-18T00:40:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xttjRKciVgxtA3b8mKncRNMmhVL1eH4xq+dmvT5gO5MkKcn4HZlf1N4BCHM3/S+PCfE21RkSbbRUGrCLf4ygAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:47:46.710796Z"},"content_sha256":"66644b6ae48c7b08b8493deb48b3b104cca27ee8ab2693229c9992f8049c500f","schema_version":"1.0","event_id":"sha256:66644b6ae48c7b08b8493deb48b3b104cca27ee8ab2693229c9992f8049c500f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:OW4HIBCHCULVIJI6AG43WIJ554","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The segregation of baryons and dark matter during halo assembly","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Carlos S. Frenk, Jie Wang, Liang Gao, Qi Guo, Shihong Liao","submitted_at":"2016-10-24T19:59:45Z","abstract_excerpt":"The standard galaxy formation theory assumes that baryons and dark matter are initially well-mixed before becoming segregated due to radiative cooling. We use non-radiative hydrodynamical simulations to explicitly examine this assumption and find that baryons and dark matter can also be segregated because of different physics obeyed by gas and dark matter during the build-up of the halo. As a result, baryons in many haloes do not originate from the same Lagrangian region as the dark matter. When using the fraction of corresponding dark matter and gas particles in the initial conditions (the \"p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07592","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":"2026-05-18T00:40:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pTVG5mZrkVqpN57tajZQQSO7rIlp31mBcUo8XKCxuvGXxtVyFnHX5GxDlxAqryerrPCm1iAtl+8ddpL1WptQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:47:46.711137Z"},"content_sha256":"0ac309feddc923aea015f86117f4767217a5010beecb829b0947f088f63c49a0","schema_version":"1.0","event_id":"sha256:0ac309feddc923aea015f86117f4767217a5010beecb829b0947f088f63c49a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OW4HIBCHCULVIJI6AG43WIJ554/bundle.json","state_url":"https://pith.science/pith/OW4HIBCHCULVIJI6AG43WIJ554/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OW4HIBCHCULVIJI6AG43WIJ554/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":"2026-06-29T13:47:46Z","links":{"resolver":"https://pith.science/pith/OW4HIBCHCULVIJI6AG43WIJ554","bundle":"https://pith.science/pith/OW4HIBCHCULVIJI6AG43WIJ554/bundle.json","state":"https://pith.science/pith/OW4HIBCHCULVIJI6AG43WIJ554/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OW4HIBCHCULVIJI6AG43WIJ554/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OW4HIBCHCULVIJI6AG43WIJ554","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":"cb711ebe5a356974ebafadeec58a8b4d0e6b4e1a64f621ea33965e4090b153f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T19:59:45Z","title_canon_sha256":"cab8c73e4ab63d34f96da0d2fd93745ba7f73631fddc1e0d3657b0416fd5cc02"},"schema_version":"1.0","source":{"id":"1610.07592","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07592","created_at":"2026-05-18T00:40:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07592v2","created_at":"2026-05-18T00:40:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07592","created_at":"2026-05-18T00:40:51Z"},{"alias_kind":"pith_short_12","alias_value":"OW4HIBCHCULV","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OW4HIBCHCULVIJI6","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OW4HIBCH","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:0ac309feddc923aea015f86117f4767217a5010beecb829b0947f088f63c49a0","target":"graph","created_at":"2026-05-18T00:40:51Z","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":"The standard galaxy formation theory assumes that baryons and dark matter are initially well-mixed before becoming segregated due to radiative cooling. We use non-radiative hydrodynamical simulations to explicitly examine this assumption and find that baryons and dark matter can also be segregated because of different physics obeyed by gas and dark matter during the build-up of the halo. As a result, baryons in many haloes do not originate from the same Lagrangian region as the dark matter. When using the fraction of corresponding dark matter and gas particles in the initial conditions (the \"p","authors_text":"Carlos S. Frenk, Jie Wang, Liang Gao, Qi Guo, Shihong Liao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T19:59:45Z","title":"The segregation of baryons and dark matter during halo assembly"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07592","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":"sha256:66644b6ae48c7b08b8493deb48b3b104cca27ee8ab2693229c9992f8049c500f","target":"record","created_at":"2026-05-18T00:40:51Z","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":"cb711ebe5a356974ebafadeec58a8b4d0e6b4e1a64f621ea33965e4090b153f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T19:59:45Z","title_canon_sha256":"cab8c73e4ab63d34f96da0d2fd93745ba7f73631fddc1e0d3657b0416fd5cc02"},"schema_version":"1.0","source":{"id":"1610.07592","kind":"arxiv","version":2}},"canonical_sha256":"75b8740447151754251e01b9bb213def14c78f5fd5f2c50829966f4c0000f266","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75b8740447151754251e01b9bb213def14c78f5fd5f2c50829966f4c0000f266","first_computed_at":"2026-05-18T00:40:51.504271Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:51.504271Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"owLoG67eXISkhFayKO0VyRRTKxuZP6dfBNYamqPsCnEWJL+zFXSRYkTuBU3y+2UTvCwq9My2D5/21GZ0VlLwCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:51.505033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07592","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66644b6ae48c7b08b8493deb48b3b104cca27ee8ab2693229c9992f8049c500f","sha256:0ac309feddc923aea015f86117f4767217a5010beecb829b0947f088f63c49a0"],"state_sha256":"b2a8a0636dffb3758e9f549a9b67c061a3df773e20dbb7f0715c05d2339471fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Eko5RVfdTw3YATo/m2Cu40XJ/k2usCU0rI8nCKRHkFX72Sbs08vJ188aHKiW+JiVwaiJED594VZs/P7c2i2MDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T13:47:46.713165Z","bundle_sha256":"69719569f394e21ad1ee6d5456a4e1879184e529373b216baed74a347e51e448"}}