{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:GS7M7I672CSITZOD6YZ6C6DSB5","short_pith_number":"pith:GS7M7I67","canonical_record":{"source":{"id":"2004.07089","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-15T13:53:01Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"60e17e1d0aa6d1af88c3f4f8b3e5e089725edb866b807d99f4346da78bc8e1eb","abstract_canon_sha256":"f6090caa85584fc1d134808283faeb4c68eaf81e716bb4ddb705633b1cd930fb"},"schema_version":"1.0"},"canonical_sha256":"34becfa3dfd0a489e5c3f633e178720f7ae6fc87a1adc2528a79971c2c89e950","source":{"kind":"arxiv","id":"2004.07089","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.07089","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"2004.07089v2","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.07089","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"GS7M7I672CSI","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"pith_short_16","alias_value":"GS7M7I672CSITZOD","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"pith_short_8","alias_value":"GS7M7I67","created_at":"2026-07-05T01:07:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:GS7M7I672CSITZOD6YZ6C6DSB5","target":"record","payload":{"canonical_record":{"source":{"id":"2004.07089","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-15T13:53:01Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"60e17e1d0aa6d1af88c3f4f8b3e5e089725edb866b807d99f4346da78bc8e1eb","abstract_canon_sha256":"f6090caa85584fc1d134808283faeb4c68eaf81e716bb4ddb705633b1cd930fb"},"schema_version":"1.0"},"canonical_sha256":"34becfa3dfd0a489e5c3f633e178720f7ae6fc87a1adc2528a79971c2c89e950","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:07:40.730211Z","signature_b64":"vDSitGiXVFlox7MDHUGbHOo12L00BMjP0JrQQ8sfope60x5wWSRX3/m1LTOWJqDAnArBen9n7KHSmf+tKfDVDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34becfa3dfd0a489e5c3f633e178720f7ae6fc87a1adc2528a79971c2c89e950","last_reissued_at":"2026-07-05T01:07:40.729733Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:07:40.729733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.07089","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":"2026-07-05T01:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EzfAq0AmUbobWTUfSPfBPEtygwqeJF0+alPYKaLLpaX85n7TobWY3IpLtx7aA3NixX2qJuxGacK6w8N+OawQCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T05:53:42.663830Z"},"content_sha256":"045e5e008f17ed2bea138b0e50b8d2f3bbc0af531d688d9a792b8504e6413bc4","schema_version":"1.0","event_id":"sha256:045e5e008f17ed2bea138b0e50b8d2f3bbc0af531d688d9a792b8504e6413bc4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:GS7M7I672CSITZOD6YZ6C6DSB5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dust collapse in 4D Einstein-Gauss-Bonnet gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"gr-qc","authors_text":"Bobir Toshmatov, Daniele Malafarina, Naresh Dadhich","submitted_at":"2020-04-15T13:53:01Z","abstract_excerpt":"We consider gravitational collapse in the recently proposed 4D limit of Einstein-Gauss-Bonnet gravity. We show that for collapse of a sphere made of homogeneous dust the process is qualitatively similar to the case of pure Einstein's gravity. The singularity forms as the endstate of collapse and it is trapped behind the horizon at all times. However, and differently from Einstein's theory, as a consequence of the Gauss-Bonnet term, the collapsing cloud reaches the singularity with zero velocity, and the time of formation of the singularity is delayed with respect to the pure Einstein case."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.07089","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.07089/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":"2026-07-05T01:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HAzVsUsIFeLc5PwfAOIgP4vIJ0bbVN/0d6Fnw8c8ilB/Xrtz7et/nEYihG9S0317y1OulUcedLahM+EK0xNHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T05:53:42.664687Z"},"content_sha256":"42f2f936548c1a41e06aa39adb342e4099f4d5048170047f9e41e389f5156e3b","schema_version":"1.0","event_id":"sha256:42f2f936548c1a41e06aa39adb342e4099f4d5048170047f9e41e389f5156e3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GS7M7I672CSITZOD6YZ6C6DSB5/bundle.json","state_url":"https://pith.science/pith/GS7M7I672CSITZOD6YZ6C6DSB5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GS7M7I672CSITZOD6YZ6C6DSB5/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":"2026-08-08T05:53:42Z","links":{"resolver":"https://pith.science/pith/GS7M7I672CSITZOD6YZ6C6DSB5","bundle":"https://pith.science/pith/GS7M7I672CSITZOD6YZ6C6DSB5/bundle.json","state":"https://pith.science/pith/GS7M7I672CSITZOD6YZ6C6DSB5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GS7M7I672CSITZOD6YZ6C6DSB5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:GS7M7I672CSITZOD6YZ6C6DSB5","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":"f6090caa85584fc1d134808283faeb4c68eaf81e716bb4ddb705633b1cd930fb","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-15T13:53:01Z","title_canon_sha256":"60e17e1d0aa6d1af88c3f4f8b3e5e089725edb866b807d99f4346da78bc8e1eb"},"schema_version":"1.0","source":{"id":"2004.07089","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.07089","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"2004.07089v2","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.07089","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"GS7M7I672CSI","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"pith_short_16","alias_value":"GS7M7I672CSITZOD","created_at":"2026-07-05T01:07:40Z"},{"alias_kind":"pith_short_8","alias_value":"GS7M7I67","created_at":"2026-07-05T01:07:40Z"}],"graph_snapshots":[{"event_id":"sha256:42f2f936548c1a41e06aa39adb342e4099f4d5048170047f9e41e389f5156e3b","target":"graph","created_at":"2026-07-05T01:07:40Z","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/2004.07089/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We consider gravitational collapse in the recently proposed 4D limit of Einstein-Gauss-Bonnet gravity. We show that for collapse of a sphere made of homogeneous dust the process is qualitatively similar to the case of pure Einstein's gravity. The singularity forms as the endstate of collapse and it is trapped behind the horizon at all times. However, and differently from Einstein's theory, as a consequence of the Gauss-Bonnet term, the collapsing cloud reaches the singularity with zero velocity, and the time of formation of the singularity is delayed with respect to the pure Einstein case.","authors_text":"Bobir Toshmatov, Daniele Malafarina, Naresh Dadhich","cross_cats":["astro-ph.HE","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-15T13:53:01Z","title":"Dust collapse in 4D Einstein-Gauss-Bonnet gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.07089","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":"sha256:045e5e008f17ed2bea138b0e50b8d2f3bbc0af531d688d9a792b8504e6413bc4","target":"record","created_at":"2026-07-05T01:07:40Z","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":"f6090caa85584fc1d134808283faeb4c68eaf81e716bb4ddb705633b1cd930fb","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-15T13:53:01Z","title_canon_sha256":"60e17e1d0aa6d1af88c3f4f8b3e5e089725edb866b807d99f4346da78bc8e1eb"},"schema_version":"1.0","source":{"id":"2004.07089","kind":"arxiv","version":2}},"canonical_sha256":"34becfa3dfd0a489e5c3f633e178720f7ae6fc87a1adc2528a79971c2c89e950","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34becfa3dfd0a489e5c3f633e178720f7ae6fc87a1adc2528a79971c2c89e950","first_computed_at":"2026-07-05T01:07:40.729733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:07:40.729733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vDSitGiXVFlox7MDHUGbHOo12L00BMjP0JrQQ8sfope60x5wWSRX3/m1LTOWJqDAnArBen9n7KHSmf+tKfDVDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:07:40.730211Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.07089","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:045e5e008f17ed2bea138b0e50b8d2f3bbc0af531d688d9a792b8504e6413bc4","sha256:42f2f936548c1a41e06aa39adb342e4099f4d5048170047f9e41e389f5156e3b"],"state_sha256":"4eb4588c1874ba5c4329f5f59f3a77849f875c34be15a45d802af8137121b604"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wu+kpnNmSYP6GYUeKG7b1Lg9Fi0fGLs7Od0oVQwa1qolBFdY7JJsfvad4m9cd0vYak/8HxoF1G5mSs0itZv6CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T05:53:42.670941Z","bundle_sha256":"c5640a56d7f112dbb4389b7864a7b24ebb6f1dd477ff161ce07cfd64e9138c3e"}}