{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:32MJM2YPANR6ICDJIURHLJLOQK","short_pith_number":"pith:32MJM2YP","canonical_record":{"source":{"id":"1103.0547","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-02T21:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"f1e696283feb51899ea16d3aacd79fa09f95f8a5255718c47137acd3f48e597a","abstract_canon_sha256":"903ff4561cac9c35bde7d569861435ddcb9a88daae1b5b68e9df501c396420c5"},"schema_version":"1.0"},"canonical_sha256":"de98966b0f0363e40869452275a56e828be3f9d941322cbdca520810155b03af","source":{"kind":"arxiv","id":"1103.0547","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.0547","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"1103.0547v2","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0547","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"32MJM2YPANR6","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"32MJM2YPANR6ICDJ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"32MJM2YP","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:32MJM2YPANR6ICDJIURHLJLOQK","target":"record","payload":{"canonical_record":{"source":{"id":"1103.0547","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-02T21:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"f1e696283feb51899ea16d3aacd79fa09f95f8a5255718c47137acd3f48e597a","abstract_canon_sha256":"903ff4561cac9c35bde7d569861435ddcb9a88daae1b5b68e9df501c396420c5"},"schema_version":"1.0"},"canonical_sha256":"de98966b0f0363e40869452275a56e828be3f9d941322cbdca520810155b03af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:54:39.504501Z","signature_b64":"5caz8vJM6mkUfaml5x1ZEnXnMbAneyUMWLFm5XZbdxGrCCvp0CEaTNceqny6VcIiX3pRjXfo83ZKQWIbljopBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de98966b0f0363e40869452275a56e828be3f9d941322cbdca520810155b03af","last_reissued_at":"2026-05-18T03:54:39.503957Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:54:39.503957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.0547","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":"2026-05-18T03:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FGcSphD60hlB9eGNJqttIYwaiifsEiAvRx9h84WPDN7uRit2aSAukBu/G3DiymGHiSANQsb+mWn852RzAJ92CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:17:17.636063Z"},"content_sha256":"9c8184c317d8d962c859fe24a73f6b8c7db0782683d60d0dec3688319605e1e6","schema_version":"1.0","event_id":"sha256:9c8184c317d8d962c859fe24a73f6b8c7db0782683d60d0dec3688319605e1e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:32MJM2YPANR6ICDJIURHLJLOQK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Disentangling galaxy environment and host halo mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"2), (2) STScI, 3) ((1) Leiden, (3) MPA), Akila Jeeson-Daniel (1, Joop Schaye (1), Marcel R. Haas (1","submitted_at":"2011-03-02T21:00:01Z","abstract_excerpt":"[Abridged] The properties of observed galaxies and dark matter haloes in simulations depend on their environment. The term environment has been used to describe a wide variety of measures that may or may not correlate with each other. Popular measures of environment include the distance to the N'th nearest neighbour, the number density of objects within some distance, or the mass of the host dark matter halo. We use results from the Millennium simulation and a semi-analytic model for galaxy formation to quantify the relations between environment and halo mass. We show that the environmental pa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0547","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":"2026-05-18T03:54:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xdM+21/ISPsB1InWlQinNt+n1HaJ9M1lzy84W9PdrAwNkgVyeN4ubmJhcNKtRboqn61kQcJQi0ddR6ZiVsiKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:17:17.636407Z"},"content_sha256":"3f9a88f75bb768e71e5fc4abd9be034336182adf8c8959500b97d3fe818e516e","schema_version":"1.0","event_id":"sha256:3f9a88f75bb768e71e5fc4abd9be034336182adf8c8959500b97d3fe818e516e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/32MJM2YPANR6ICDJIURHLJLOQK/bundle.json","state_url":"https://pith.science/pith/32MJM2YPANR6ICDJIURHLJLOQK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/32MJM2YPANR6ICDJIURHLJLOQK/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":"2026-06-02T03:17:17Z","links":{"resolver":"https://pith.science/pith/32MJM2YPANR6ICDJIURHLJLOQK","bundle":"https://pith.science/pith/32MJM2YPANR6ICDJIURHLJLOQK/bundle.json","state":"https://pith.science/pith/32MJM2YPANR6ICDJIURHLJLOQK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/32MJM2YPANR6ICDJIURHLJLOQK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:32MJM2YPANR6ICDJIURHLJLOQK","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":"903ff4561cac9c35bde7d569861435ddcb9a88daae1b5b68e9df501c396420c5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-02T21:00:01Z","title_canon_sha256":"f1e696283feb51899ea16d3aacd79fa09f95f8a5255718c47137acd3f48e597a"},"schema_version":"1.0","source":{"id":"1103.0547","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.0547","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"arxiv_version","alias_value":"1103.0547v2","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0547","created_at":"2026-05-18T03:54:39Z"},{"alias_kind":"pith_short_12","alias_value":"32MJM2YPANR6","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"32MJM2YPANR6ICDJ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"32MJM2YP","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:3f9a88f75bb768e71e5fc4abd9be034336182adf8c8959500b97d3fe818e516e","target":"graph","created_at":"2026-05-18T03:54:39Z","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":"[Abridged] The properties of observed galaxies and dark matter haloes in simulations depend on their environment. The term environment has been used to describe a wide variety of measures that may or may not correlate with each other. Popular measures of environment include the distance to the N'th nearest neighbour, the number density of objects within some distance, or the mass of the host dark matter halo. We use results from the Millennium simulation and a semi-analytic model for galaxy formation to quantify the relations between environment and halo mass. We show that the environmental pa","authors_text":"2), (2) STScI, 3) ((1) Leiden, (3) MPA), Akila Jeeson-Daniel (1, Joop Schaye (1), Marcel R. Haas (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-02T21:00:01Z","title":"Disentangling galaxy environment and host halo mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0547","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":"sha256:9c8184c317d8d962c859fe24a73f6b8c7db0782683d60d0dec3688319605e1e6","target":"record","created_at":"2026-05-18T03:54:39Z","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":"903ff4561cac9c35bde7d569861435ddcb9a88daae1b5b68e9df501c396420c5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-02T21:00:01Z","title_canon_sha256":"f1e696283feb51899ea16d3aacd79fa09f95f8a5255718c47137acd3f48e597a"},"schema_version":"1.0","source":{"id":"1103.0547","kind":"arxiv","version":2}},"canonical_sha256":"de98966b0f0363e40869452275a56e828be3f9d941322cbdca520810155b03af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de98966b0f0363e40869452275a56e828be3f9d941322cbdca520810155b03af","first_computed_at":"2026-05-18T03:54:39.503957Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:54:39.503957Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5caz8vJM6mkUfaml5x1ZEnXnMbAneyUMWLFm5XZbdxGrCCvp0CEaTNceqny6VcIiX3pRjXfo83ZKQWIbljopBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:54:39.504501Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.0547","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9c8184c317d8d962c859fe24a73f6b8c7db0782683d60d0dec3688319605e1e6","sha256:3f9a88f75bb768e71e5fc4abd9be034336182adf8c8959500b97d3fe818e516e"],"state_sha256":"3661011b52b2e6474f7219c7c83fd2f7730669d4879964bc3ee8919eb6cd65a7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UDQuGHrx3AidG5SuPutgfgMaJOEA4YgzOjEcvhZzNYh/q3vEtmIICgFsy8uN8U5AlGbK6Uqmw0KjiYWd5/mOCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:17:17.638182Z","bundle_sha256":"73c1adb8fc9a4771b6140233a01810c7cd0636f8522d62c3765e64d05801ade2"}}