{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:Z26WU35G2W3VEC7CT4MA5PQ7Z6","short_pith_number":"pith:Z26WU35G","canonical_record":{"source":{"id":"2008.04913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-11T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"8b8efd54c0fcf629c06e7fc77eac795dd3289576e0fbc02ba1078c161c590789","abstract_canon_sha256":"2fdbefc2a7170a5f742e3094a6bcba75fb89415eae6f80c10513f9d8a4345e6a"},"schema_version":"1.0"},"canonical_sha256":"cebd6a6fa6d5b7520be29f180ebe1fcfabeda5c1551850589e413a1a734c73d3","source":{"kind":"arxiv","id":"2008.04913","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.04913","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"2008.04913v1","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.04913","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"Z26WU35G2W3V","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"pith_short_16","alias_value":"Z26WU35G2W3VEC7C","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"pith_short_8","alias_value":"Z26WU35G","created_at":"2026-07-05T01:59:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:Z26WU35G2W3VEC7CT4MA5PQ7Z6","target":"record","payload":{"canonical_record":{"source":{"id":"2008.04913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-11T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"8b8efd54c0fcf629c06e7fc77eac795dd3289576e0fbc02ba1078c161c590789","abstract_canon_sha256":"2fdbefc2a7170a5f742e3094a6bcba75fb89415eae6f80c10513f9d8a4345e6a"},"schema_version":"1.0"},"canonical_sha256":"cebd6a6fa6d5b7520be29f180ebe1fcfabeda5c1551850589e413a1a734c73d3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:59:32.021391Z","signature_b64":"a/f3XFPiYVfoM6pNrnZ9LA2E7n17Y0KrBEvRxsor8XSPjyvTilwm+SbcZS7rGFPYEusZY36r51LmNan78/hVCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cebd6a6fa6d5b7520be29f180ebe1fcfabeda5c1551850589e413a1a734c73d3","last_reissued_at":"2026-07-05T01:59:32.020950Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:59:32.020950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.04913","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P5KA+wb1ziFuoF/vZFr/XrR/Nma6tzsWuku8lPIvwLodyygNVVJU38zYpZtZwMkUpe5HkMJKolfgcjLxe1vBDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T17:24:03.902341Z"},"content_sha256":"fe73a9ac4d8a36508056fb8986df9d898c46e44de5255e38b5574959067c57d4","schema_version":"1.0","event_id":"sha256:fe73a9ac4d8a36508056fb8986df9d898c46e44de5255e38b5574959067c57d4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:Z26WU35G2W3VEC7CT4MA5PQ7Z6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extensions to models of the galaxy-halo connection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Boryana Hadzhiyska, Daniel Eisenstein, Lars Hernquist, Sownak Bose","submitted_at":"2020-08-11T18:00:00Z","abstract_excerpt":"We explore two widely used empirical models for the galaxy-halo connection, subhalo abundance matching (SHAM) and the halo occupation distribution (HOD) and compare their predictions with the hydrodynamical simulation IllustrisTNG (TNG) for a range of statistics that quantify the galaxy distribution at $n_{\\rm gal}\\approx1.3\\times10^{-3}\\,[{\\rm Mpc}/h]^{-3}$. We observe that in their most straightforward implementations, both models fail to reproduce the two-point clustering measured in TNG. We find that SHAM models constructed using the relaxation velocity, $V_{\\rm relax}$, and the peak veloc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.04913","kind":"arxiv","version":1},"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/2008.04913/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":"2026-07-05T01:59:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fgg4j+VZDFHucDabQnwbs7o4B/SwpBBZkyQH/T/Bu2xGw0cwsm1Y1P7u1kQQ2JOaFbXPXuzd2aA4eDyymwxGCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T17:24:03.902869Z"},"content_sha256":"73a0afb3c989f7a3ee48e27258d98743ecdb66b808451ccafb551bba1e041209","schema_version":"1.0","event_id":"sha256:73a0afb3c989f7a3ee48e27258d98743ecdb66b808451ccafb551bba1e041209"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6/bundle.json","state_url":"https://pith.science/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6/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":"2026-08-12T17:24:03Z","links":{"resolver":"https://pith.science/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6","bundle":"https://pith.science/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6/bundle.json","state":"https://pith.science/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z26WU35G2W3VEC7CT4MA5PQ7Z6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:Z26WU35G2W3VEC7CT4MA5PQ7Z6","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":"2fdbefc2a7170a5f742e3094a6bcba75fb89415eae6f80c10513f9d8a4345e6a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-11T18:00:00Z","title_canon_sha256":"8b8efd54c0fcf629c06e7fc77eac795dd3289576e0fbc02ba1078c161c590789"},"schema_version":"1.0","source":{"id":"2008.04913","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.04913","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"arxiv_version","alias_value":"2008.04913v1","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.04913","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"pith_short_12","alias_value":"Z26WU35G2W3V","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"pith_short_16","alias_value":"Z26WU35G2W3VEC7C","created_at":"2026-07-05T01:59:32Z"},{"alias_kind":"pith_short_8","alias_value":"Z26WU35G","created_at":"2026-07-05T01:59:32Z"}],"graph_snapshots":[{"event_id":"sha256:73a0afb3c989f7a3ee48e27258d98743ecdb66b808451ccafb551bba1e041209","target":"graph","created_at":"2026-07-05T01:59:32Z","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/2008.04913/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We explore two widely used empirical models for the galaxy-halo connection, subhalo abundance matching (SHAM) and the halo occupation distribution (HOD) and compare their predictions with the hydrodynamical simulation IllustrisTNG (TNG) for a range of statistics that quantify the galaxy distribution at $n_{\\rm gal}\\approx1.3\\times10^{-3}\\,[{\\rm Mpc}/h]^{-3}$. We observe that in their most straightforward implementations, both models fail to reproduce the two-point clustering measured in TNG. We find that SHAM models constructed using the relaxation velocity, $V_{\\rm relax}$, and the peak veloc","authors_text":"Boryana Hadzhiyska, Daniel Eisenstein, Lars Hernquist, Sownak Bose","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-11T18:00:00Z","title":"Extensions to models of the galaxy-halo connection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.04913","kind":"arxiv","version":1},"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:fe73a9ac4d8a36508056fb8986df9d898c46e44de5255e38b5574959067c57d4","target":"record","created_at":"2026-07-05T01:59:32Z","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":"2fdbefc2a7170a5f742e3094a6bcba75fb89415eae6f80c10513f9d8a4345e6a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-08-11T18:00:00Z","title_canon_sha256":"8b8efd54c0fcf629c06e7fc77eac795dd3289576e0fbc02ba1078c161c590789"},"schema_version":"1.0","source":{"id":"2008.04913","kind":"arxiv","version":1}},"canonical_sha256":"cebd6a6fa6d5b7520be29f180ebe1fcfabeda5c1551850589e413a1a734c73d3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cebd6a6fa6d5b7520be29f180ebe1fcfabeda5c1551850589e413a1a734c73d3","first_computed_at":"2026-07-05T01:59:32.020950Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:59:32.020950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"a/f3XFPiYVfoM6pNrnZ9LA2E7n17Y0KrBEvRxsor8XSPjyvTilwm+SbcZS7rGFPYEusZY36r51LmNan78/hVCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:59:32.021391Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.04913","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe73a9ac4d8a36508056fb8986df9d898c46e44de5255e38b5574959067c57d4","sha256:73a0afb3c989f7a3ee48e27258d98743ecdb66b808451ccafb551bba1e041209"],"state_sha256":"d3420de5f61466b96b6ede39fe7fd6867096c37bd1fba795502a073646ae7a53"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fkj7PCIBehuZ1F60i6Y5tmgp0u/60EDQeaVbOc+alVwpOuDRV8+Pu10UN48Nwc6YajdpwUBLeZCvJJAVRAApCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T17:24:03.906956Z","bundle_sha256":"9b01e7eb90f719ed634533133860dce507db99c1b1d2adc6cf08bf64fe2d0a76"}}