{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:TB2GXRH6UK3DQCLKRIBQ3RAH7S","short_pith_number":"pith:TB2GXRH6","canonical_record":{"source":{"id":"2112.00749","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-01T19:00:01Z","cross_cats_sorted":["astro-ph.GA","hep-ph"],"title_canon_sha256":"5d6d78ed98a67a5024aff815bf00daa873a92569e078a4146e06ad61bae3ed0d","abstract_canon_sha256":"0fca49845d486b7cb191e164c9a1a2d1cba479b49c8bfa3b02b7be0c31ad16ed"},"schema_version":"1.0"},"canonical_sha256":"98746bc4fea2b638096a8a030dc407fc9e3a1844f710f353ebfaf5c43da62ebf","source":{"kind":"arxiv","id":"2112.00749","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.00749","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"arxiv_version","alias_value":"2112.00749v3","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.00749","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"pith_short_12","alias_value":"TB2GXRH6UK3D","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"pith_short_16","alias_value":"TB2GXRH6UK3DQCLK","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"pith_short_8","alias_value":"TB2GXRH6","created_at":"2026-07-05T04:47:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:TB2GXRH6UK3DQCLKRIBQ3RAH7S","target":"record","payload":{"canonical_record":{"source":{"id":"2112.00749","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-01T19:00:01Z","cross_cats_sorted":["astro-ph.GA","hep-ph"],"title_canon_sha256":"5d6d78ed98a67a5024aff815bf00daa873a92569e078a4146e06ad61bae3ed0d","abstract_canon_sha256":"0fca49845d486b7cb191e164c9a1a2d1cba479b49c8bfa3b02b7be0c31ad16ed"},"schema_version":"1.0"},"canonical_sha256":"98746bc4fea2b638096a8a030dc407fc9e3a1844f710f353ebfaf5c43da62ebf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:47:56.260369Z","signature_b64":"lvWC1cCKJSPyQ64apaE7sKwNk9t90JyC+mIkIDmrHrvp0QqGR42Dwfg9UKbfSuHhQ+iSUC2grnNcy6mT/g3MDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98746bc4fea2b638096a8a030dc407fc9e3a1844f710f353ebfaf5c43da62ebf","last_reissued_at":"2026-07-05T04:47:56.259885Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:47:56.259885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.00749","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:47:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"us8f0znAeueDaVTHsYJMEIWuygvYGVHCu2N2P7oIxG+eRh9hT3CJdQ1JkSuUh/vvr0VS/HXBwLiiCz8gDtkLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:08:16.625941Z"},"content_sha256":"69b1b781ab43dce57f184fd38973e0fb46de9e8eb5fdf147705d8e8cbf1a29c4","schema_version":"1.0","event_id":"sha256:69b1b781ab43dce57f184fd38973e0fb46de9e8eb5fdf147705d8e8cbf1a29c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:TB2GXRH6UK3DQCLKRIBQ3RAH7S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Substructure Detection Reanalyzed: Dark Perturber shown to be a Line-of-Sight Halo","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Arthur Tsang, At{\\i}n\\c{c} \\c{C}a\\u{g}an \\c{S}eng\\\"ul, Bryan Ostdiek, Cora Dvorkin","submitted_at":"2021-12-01T19:00:01Z","abstract_excerpt":"Observations of structure at sub-galactic scales are crucial for probing the properties of dark matter, which is the dominant source of gravity in the universe. It will become increasingly important for future surveys to distinguish between line-of-sight halos and subhalos to avoid wrong inferences on the nature of dark matter. We reanalyze a sub-galactic structure (in lens JVAS B1938+666) that has been previously found using the gravitational imaging technique in galaxy-galaxy lensing systems. This structure has been assumed to be a satellite in the halo of the main lens galaxy. We fit the re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.00749","kind":"arxiv","version":3},"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/2112.00749/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":"2026-07-05T04:47:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8a9uKt07aEefbTo6HzzSUN8FoxjIp+i0UcSlCoC3zAZqz4a2ZSbesVMJ3wgNk/c08AfIvLaCAdEuo29YDcNQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:08:16.626532Z"},"content_sha256":"86ae83eb0647ae488900f60c36511cb23572809e4ddf39ba6fb33a696ee386c7","schema_version":"1.0","event_id":"sha256:86ae83eb0647ae488900f60c36511cb23572809e4ddf39ba6fb33a696ee386c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S/bundle.json","state_url":"https://pith.science/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S/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":"2026-08-07T08:08:16Z","links":{"resolver":"https://pith.science/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S","bundle":"https://pith.science/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S/bundle.json","state":"https://pith.science/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TB2GXRH6UK3DQCLKRIBQ3RAH7S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:TB2GXRH6UK3DQCLKRIBQ3RAH7S","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":"0fca49845d486b7cb191e164c9a1a2d1cba479b49c8bfa3b02b7be0c31ad16ed","cross_cats_sorted":["astro-ph.GA","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-01T19:00:01Z","title_canon_sha256":"5d6d78ed98a67a5024aff815bf00daa873a92569e078a4146e06ad61bae3ed0d"},"schema_version":"1.0","source":{"id":"2112.00749","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.00749","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"arxiv_version","alias_value":"2112.00749v3","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.00749","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"pith_short_12","alias_value":"TB2GXRH6UK3D","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"pith_short_16","alias_value":"TB2GXRH6UK3DQCLK","created_at":"2026-07-05T04:47:56Z"},{"alias_kind":"pith_short_8","alias_value":"TB2GXRH6","created_at":"2026-07-05T04:47:56Z"}],"graph_snapshots":[{"event_id":"sha256:86ae83eb0647ae488900f60c36511cb23572809e4ddf39ba6fb33a696ee386c7","target":"graph","created_at":"2026-07-05T04:47:56Z","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/2112.00749/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Observations of structure at sub-galactic scales are crucial for probing the properties of dark matter, which is the dominant source of gravity in the universe. It will become increasingly important for future surveys to distinguish between line-of-sight halos and subhalos to avoid wrong inferences on the nature of dark matter. We reanalyze a sub-galactic structure (in lens JVAS B1938+666) that has been previously found using the gravitational imaging technique in galaxy-galaxy lensing systems. This structure has been assumed to be a satellite in the halo of the main lens galaxy. We fit the re","authors_text":"Arthur Tsang, At{\\i}n\\c{c} \\c{C}a\\u{g}an \\c{S}eng\\\"ul, Bryan Ostdiek, Cora Dvorkin","cross_cats":["astro-ph.GA","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-01T19:00:01Z","title":"Substructure Detection Reanalyzed: Dark Perturber shown to be a Line-of-Sight Halo"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.00749","kind":"arxiv","version":3},"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":"sha256:69b1b781ab43dce57f184fd38973e0fb46de9e8eb5fdf147705d8e8cbf1a29c4","target":"record","created_at":"2026-07-05T04:47:56Z","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":"0fca49845d486b7cb191e164c9a1a2d1cba479b49c8bfa3b02b7be0c31ad16ed","cross_cats_sorted":["astro-ph.GA","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-01T19:00:01Z","title_canon_sha256":"5d6d78ed98a67a5024aff815bf00daa873a92569e078a4146e06ad61bae3ed0d"},"schema_version":"1.0","source":{"id":"2112.00749","kind":"arxiv","version":3}},"canonical_sha256":"98746bc4fea2b638096a8a030dc407fc9e3a1844f710f353ebfaf5c43da62ebf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98746bc4fea2b638096a8a030dc407fc9e3a1844f710f353ebfaf5c43da62ebf","first_computed_at":"2026-07-05T04:47:56.259885Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:47:56.259885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lvWC1cCKJSPyQ64apaE7sKwNk9t90JyC+mIkIDmrHrvp0QqGR42Dwfg9UKbfSuHhQ+iSUC2grnNcy6mT/g3MDA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:47:56.260369Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.00749","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69b1b781ab43dce57f184fd38973e0fb46de9e8eb5fdf147705d8e8cbf1a29c4","sha256:86ae83eb0647ae488900f60c36511cb23572809e4ddf39ba6fb33a696ee386c7"],"state_sha256":"9eca57fb8831040397b3a56ff06a667e923d6574f602d04929565d1560be231c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lrdEuqXznTgML5TEyNaTkJLZZRyVwqsWyFdFeT39Qnwem1c9H0mVsRRFuZQhOMYicj9dbiOJmfgUeOzRIktiCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T08:08:16.631170Z","bundle_sha256":"2cdcb7b1818697d43c235842d1d2317c7389ba3c7936f2dbb8c9f8ce33c372c9"}}