{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ZDJIQL5YGWIKT3MRNQTGDMQXDS","short_pith_number":"pith:ZDJIQL5Y","canonical_record":{"source":{"id":"1410.1510","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-06T19:54:58Z","cross_cats_sorted":[],"title_canon_sha256":"e58d0dc9bd164fdfe5d864a90a4ebdff850a13afb6b9bbbca4ebe929065672d9","abstract_canon_sha256":"ce4d7bf18fd62484283304bdbb1f9a8c5a18236e951c4cd3093c0feaaebb9a74"},"schema_version":"1.0"},"canonical_sha256":"c8d2882fb83590a9ed916c2661b2171c941c2525d6c7c08d5409c9beb7642234","source":{"kind":"arxiv","id":"1410.1510","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.1510","created_at":"2026-05-18T01:35:51Z"},{"alias_kind":"arxiv_version","alias_value":"1410.1510v2","created_at":"2026-05-18T01:35:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.1510","created_at":"2026-05-18T01:35:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZDJIQL5YGWIK","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZDJIQL5YGWIKT3MR","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZDJIQL5Y","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ZDJIQL5YGWIKT3MRNQTGDMQXDS","target":"record","payload":{"canonical_record":{"source":{"id":"1410.1510","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-06T19:54:58Z","cross_cats_sorted":[],"title_canon_sha256":"e58d0dc9bd164fdfe5d864a90a4ebdff850a13afb6b9bbbca4ebe929065672d9","abstract_canon_sha256":"ce4d7bf18fd62484283304bdbb1f9a8c5a18236e951c4cd3093c0feaaebb9a74"},"schema_version":"1.0"},"canonical_sha256":"c8d2882fb83590a9ed916c2661b2171c941c2525d6c7c08d5409c9beb7642234","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:51.767802Z","signature_b64":"MvEbygj86fu53r3GuOzHcAjwwxwg8HaSxkX4JMOsg0gFbx+bSg8SSK8xmIp3tIK9+AmS7Yp5tm3m+3JpbYEqDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c8d2882fb83590a9ed916c2661b2171c941c2525d6c7c08d5409c9beb7642234","last_reissued_at":"2026-05-18T01:35:51.767294Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:51.767294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.1510","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":"2026-05-18T01:35:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5UWpsqEGoNCSwnzFVv9x9kmAed1ROO56ocEdYfiS3U556a0Y2llX5fM39bnQHns76HDW6RuBh462VkRtqPa5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:23:12.207198Z"},"content_sha256":"6422a086f3f32958d22700fc7aab8373c0c47ae2fa1bac86ba66c71a1fbcc4c9","schema_version":"1.0","event_id":"sha256:6422a086f3f32958d22700fc7aab8373c0c47ae2fa1bac86ba66c71a1fbcc4c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ZDJIQL5YGWIKT3MRNQTGDMQXDS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing Gravity using Cosmic Voids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Baojiu Li (ICC, Durham), Nelson Padilla (Cat\\'olica), Yan-Chuan Cai (ICC","submitted_at":"2014-10-06T19:54:58Z","abstract_excerpt":"We explore voids in dark matter and halo fields from simulations of $\\Lambda$CDM and Hu-Sawicki $f(R)$ models. In $f(R)$ gravity, dark matter void abundances are greater than that of general relativity (GR). However, when using haloes to identify voids, the differences of void abundances become much smaller, but can still be told apart, in principle, at the 2, 6 and 14 $\\sigma$ level for the $f(R)$ model parameter amplitudes of $|f_{R0}|=10^{-6}$, $10^{-5}$ and $10^{-4}$. In contrast, the abundance of large voids found using haloes in $f(R)$ gravity is lower than in GR. The more efficient halo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.1510","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":"2026-05-18T01:35:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FcDA4h3q66KOj91aWqlrPPy+AFaqKltDaxNIWKBTxZeCdZp58XCuOgZxTxhJMEpa5wC6QMcvEG0TQiB/dW0dCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:23:12.207884Z"},"content_sha256":"f3a8e83a47f2b9c6e467ad9ce5a00d976b531959f8d8bfb72da4fa8b059d572a","schema_version":"1.0","event_id":"sha256:f3a8e83a47f2b9c6e467ad9ce5a00d976b531959f8d8bfb72da4fa8b059d572a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS/bundle.json","state_url":"https://pith.science/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS/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":"2026-05-26T09:23:12Z","links":{"resolver":"https://pith.science/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS","bundle":"https://pith.science/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS/bundle.json","state":"https://pith.science/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZDJIQL5YGWIKT3MRNQTGDMQXDS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ZDJIQL5YGWIKT3MRNQTGDMQXDS","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":"ce4d7bf18fd62484283304bdbb1f9a8c5a18236e951c4cd3093c0feaaebb9a74","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-06T19:54:58Z","title_canon_sha256":"e58d0dc9bd164fdfe5d864a90a4ebdff850a13afb6b9bbbca4ebe929065672d9"},"schema_version":"1.0","source":{"id":"1410.1510","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.1510","created_at":"2026-05-18T01:35:51Z"},{"alias_kind":"arxiv_version","alias_value":"1410.1510v2","created_at":"2026-05-18T01:35:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.1510","created_at":"2026-05-18T01:35:51Z"},{"alias_kind":"pith_short_12","alias_value":"ZDJIQL5YGWIK","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZDJIQL5YGWIKT3MR","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZDJIQL5Y","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:f3a8e83a47f2b9c6e467ad9ce5a00d976b531959f8d8bfb72da4fa8b059d572a","target":"graph","created_at":"2026-05-18T01:35:51Z","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":"We explore voids in dark matter and halo fields from simulations of $\\Lambda$CDM and Hu-Sawicki $f(R)$ models. In $f(R)$ gravity, dark matter void abundances are greater than that of general relativity (GR). However, when using haloes to identify voids, the differences of void abundances become much smaller, but can still be told apart, in principle, at the 2, 6 and 14 $\\sigma$ level for the $f(R)$ model parameter amplitudes of $|f_{R0}|=10^{-6}$, $10^{-5}$ and $10^{-4}$. In contrast, the abundance of large voids found using haloes in $f(R)$ gravity is lower than in GR. The more efficient halo","authors_text":"Baojiu Li (ICC, Durham), Nelson Padilla (Cat\\'olica), Yan-Chuan Cai (ICC","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-06T19:54:58Z","title":"Testing Gravity using Cosmic Voids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.1510","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":"sha256:6422a086f3f32958d22700fc7aab8373c0c47ae2fa1bac86ba66c71a1fbcc4c9","target":"record","created_at":"2026-05-18T01:35:51Z","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":"ce4d7bf18fd62484283304bdbb1f9a8c5a18236e951c4cd3093c0feaaebb9a74","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-06T19:54:58Z","title_canon_sha256":"e58d0dc9bd164fdfe5d864a90a4ebdff850a13afb6b9bbbca4ebe929065672d9"},"schema_version":"1.0","source":{"id":"1410.1510","kind":"arxiv","version":2}},"canonical_sha256":"c8d2882fb83590a9ed916c2661b2171c941c2525d6c7c08d5409c9beb7642234","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c8d2882fb83590a9ed916c2661b2171c941c2525d6c7c08d5409c9beb7642234","first_computed_at":"2026-05-18T01:35:51.767294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:51.767294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MvEbygj86fu53r3GuOzHcAjwwxwg8HaSxkX4JMOsg0gFbx+bSg8SSK8xmIp3tIK9+AmS7Yp5tm3m+3JpbYEqDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:51.767802Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.1510","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6422a086f3f32958d22700fc7aab8373c0c47ae2fa1bac86ba66c71a1fbcc4c9","sha256:f3a8e83a47f2b9c6e467ad9ce5a00d976b531959f8d8bfb72da4fa8b059d572a"],"state_sha256":"1c56f283a4915c12662930b647606a528569ea605dc47f9be8fd8bf1f1f189c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JGhCta1hlTzAmdxWQLJEje7C4UpArw2WF4Km41w7Z90MFBTSirY6Q2TqnMfh/fQKiJSGOivXknfXvIyIPDmjDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:23:12.211287Z","bundle_sha256":"0536b4372d4dbc6033844dab59d688c780a6a10085f99b936a34fa0b0892f3e0"}}