{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:XHF6DE7N4GV3OJLHAGH5N2VPFU","short_pith_number":"pith:XHF6DE7N","canonical_record":{"source":{"id":"1908.00046","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-07-31T18:45:47Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"ea97286eaa0055b55e5e6bb395a4d7ade17e41c6e948f22ca666e56c1c3e4db4","abstract_canon_sha256":"5301413d09ec5c4325c4d2b992b3aff9760fee44807eb9813ffa1dbed6e1feb3"},"schema_version":"1.0"},"canonical_sha256":"b9cbe193ede1abb72567018fd6eaaf2d02fa275846518fa86f9b6de3f3199ae0","source":{"kind":"arxiv","id":"1908.00046","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00046","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00046v2","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00046","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"pith_short_12","alias_value":"XHF6DE7N4GV3","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"pith_short_16","alias_value":"XHF6DE7N4GV3OJLH","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"pith_short_8","alias_value":"XHF6DE7N","created_at":"2026-07-05T00:23:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:XHF6DE7N4GV3OJLHAGH5N2VPFU","target":"record","payload":{"canonical_record":{"source":{"id":"1908.00046","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-07-31T18:45:47Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"ea97286eaa0055b55e5e6bb395a4d7ade17e41c6e948f22ca666e56c1c3e4db4","abstract_canon_sha256":"5301413d09ec5c4325c4d2b992b3aff9760fee44807eb9813ffa1dbed6e1feb3"},"schema_version":"1.0"},"canonical_sha256":"b9cbe193ede1abb72567018fd6eaaf2d02fa275846518fa86f9b6de3f3199ae0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:23:50.671628Z","signature_b64":"m4TRLSbAmXuhfxLf/S4iEKHoLBKAih5XaZUuwyFfZvCJQCBeOxQk3DfOLstwsvawJVk1JRK2fJMPnkSEvT3+CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9cbe193ede1abb72567018fd6eaaf2d02fa275846518fa86f9b6de3f3199ae0","last_reissued_at":"2026-07-05T00:23:50.671118Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:23:50.671118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.00046","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":"2026-07-05T00:23:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v/MTDazelVUChkYtIlF9Djt4nm8WxERCGWKtDsdZNCV3VpAuyg3At+LuPmpljOEJCd2BLGo1vj1WR9hTaPGPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T11:29:24.556026Z"},"content_sha256":"32410a35dae84abe7ac7c89272bcb60c4ce166086a4fd599d975eb5a99a3f2d3","schema_version":"1.0","event_id":"sha256:32410a35dae84abe7ac7c89272bcb60c4ce166086a4fd599d975eb5a99a3f2d3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:XHF6DE7N4GV3OJLHAGH5N2VPFU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Further evidence for a population of dark-matter-deficient dwarf galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Hong Wu, Huijie Hu, Jie Wang, Jing Wang, Liang Gao, Linhua Jiang, Qi Guo, Shihong Liao, Shude Mao, Wei Du, Yingjie Peng, Zheng Zheng","submitted_at":"2019-07-31T18:45:47Z","abstract_excerpt":"In the standard cosmological model, dark matter drives the structure formation and constructs potential wells within which galaxies may form. The baryon fraction in dark halos can reach the universal value (15.7%) in massive clusters and decreases rapidly as the mass of the system decreases. The formation of dwarf galaxies is sensitive both to baryonic processes and the properties of dark matter owing to the shallow potential wells in which they form. In dwarf galaxies in the Local Group, dark matter dominates the mass content even within their optical-light half-radii (r_e ~ 1 kpc). However, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00046","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/1908.00046/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":"2026-07-05T00:23:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YI6ryufMxQEf+s6dvOC+nEQxd09/GaGsx2lQpllYJ5AcZn4MFpCs2f2BEQM/NAtsvVS2yKUXRrjFboa9fH5pDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T11:29:24.556534Z"},"content_sha256":"820c64e3ed80f8575d46d0152646ed28f9e566c9adc1ebe2c248df4e44eee07d","schema_version":"1.0","event_id":"sha256:820c64e3ed80f8575d46d0152646ed28f9e566c9adc1ebe2c248df4e44eee07d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU/bundle.json","state_url":"https://pith.science/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU/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":"2026-08-20T11:29:24Z","links":{"resolver":"https://pith.science/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU","bundle":"https://pith.science/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU/bundle.json","state":"https://pith.science/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHF6DE7N4GV3OJLHAGH5N2VPFU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XHF6DE7N4GV3OJLHAGH5N2VPFU","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":"5301413d09ec5c4325c4d2b992b3aff9760fee44807eb9813ffa1dbed6e1feb3","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-07-31T18:45:47Z","title_canon_sha256":"ea97286eaa0055b55e5e6bb395a4d7ade17e41c6e948f22ca666e56c1c3e4db4"},"schema_version":"1.0","source":{"id":"1908.00046","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00046","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00046v2","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00046","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"pith_short_12","alias_value":"XHF6DE7N4GV3","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"pith_short_16","alias_value":"XHF6DE7N4GV3OJLH","created_at":"2026-07-05T00:23:50Z"},{"alias_kind":"pith_short_8","alias_value":"XHF6DE7N","created_at":"2026-07-05T00:23:50Z"}],"graph_snapshots":[{"event_id":"sha256:820c64e3ed80f8575d46d0152646ed28f9e566c9adc1ebe2c248df4e44eee07d","target":"graph","created_at":"2026-07-05T00:23:50Z","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/1908.00046/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the standard cosmological model, dark matter drives the structure formation and constructs potential wells within which galaxies may form. The baryon fraction in dark halos can reach the universal value (15.7%) in massive clusters and decreases rapidly as the mass of the system decreases. The formation of dwarf galaxies is sensitive both to baryonic processes and the properties of dark matter owing to the shallow potential wells in which they form. In dwarf galaxies in the Local Group, dark matter dominates the mass content even within their optical-light half-radii (r_e ~ 1 kpc). However, ","authors_text":"Hong Wu, Huijie Hu, Jie Wang, Jing Wang, Liang Gao, Linhua Jiang, Qi Guo, Shihong Liao, Shude Mao, Wei Du, Yingjie Peng, Zheng Zheng","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-07-31T18:45:47Z","title":"Further evidence for a population of dark-matter-deficient dwarf galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00046","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":"sha256:32410a35dae84abe7ac7c89272bcb60c4ce166086a4fd599d975eb5a99a3f2d3","target":"record","created_at":"2026-07-05T00:23:50Z","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":"5301413d09ec5c4325c4d2b992b3aff9760fee44807eb9813ffa1dbed6e1feb3","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-07-31T18:45:47Z","title_canon_sha256":"ea97286eaa0055b55e5e6bb395a4d7ade17e41c6e948f22ca666e56c1c3e4db4"},"schema_version":"1.0","source":{"id":"1908.00046","kind":"arxiv","version":2}},"canonical_sha256":"b9cbe193ede1abb72567018fd6eaaf2d02fa275846518fa86f9b6de3f3199ae0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9cbe193ede1abb72567018fd6eaaf2d02fa275846518fa86f9b6de3f3199ae0","first_computed_at":"2026-07-05T00:23:50.671118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:23:50.671118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m4TRLSbAmXuhfxLf/S4iEKHoLBKAih5XaZUuwyFfZvCJQCBeOxQk3DfOLstwsvawJVk1JRK2fJMPnkSEvT3+CA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:23:50.671628Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.00046","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32410a35dae84abe7ac7c89272bcb60c4ce166086a4fd599d975eb5a99a3f2d3","sha256:820c64e3ed80f8575d46d0152646ed28f9e566c9adc1ebe2c248df4e44eee07d"],"state_sha256":"18ec83ba5a745e1598b35e2d484eebf302adab188d01c191a66a625ba0c192fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8us+qfnVNVT2JNdAAYzVdmQpvk4a5D1qJqCNt41nONMIG6zdAAfwey2oauy0waIRGmJyv39IXEZP9eGa1DvkDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T11:29:24.561775Z","bundle_sha256":"aacc685ef65bd732330771df22152606b9bf4d103c4e60d8067bdc40c2ed482c"}}