{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:OHPAC4DUSF7XRVLMHODQEQBQDY","short_pith_number":"pith:OHPAC4DU","canonical_record":{"source":{"id":"2402.06413","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-02-09T14:00:09Z","cross_cats_sorted":[],"title_canon_sha256":"ad4095bbc0f970f030d5e95344f8d34b0dd1347c941f14173692b311923b4a2d","abstract_canon_sha256":"77aea61331d3e25cc570e28273d0ac1d35db303a3338cfdec9b1c26ca8a188d2"},"schema_version":"1.0"},"canonical_sha256":"71de017074917f78d56c3b870240301e0ae0a1e4ebbe2e931a1c930e0b163387","source":{"kind":"arxiv","id":"2402.06413","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.06413","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"arxiv_version","alias_value":"2402.06413v1","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.06413","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"pith_short_12","alias_value":"OHPAC4DUSF7X","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"pith_short_16","alias_value":"OHPAC4DUSF7XRVLM","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"pith_short_8","alias_value":"OHPAC4DU","created_at":"2026-07-05T07:43:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:OHPAC4DUSF7XRVLMHODQEQBQDY","target":"record","payload":{"canonical_record":{"source":{"id":"2402.06413","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-02-09T14:00:09Z","cross_cats_sorted":[],"title_canon_sha256":"ad4095bbc0f970f030d5e95344f8d34b0dd1347c941f14173692b311923b4a2d","abstract_canon_sha256":"77aea61331d3e25cc570e28273d0ac1d35db303a3338cfdec9b1c26ca8a188d2"},"schema_version":"1.0"},"canonical_sha256":"71de017074917f78d56c3b870240301e0ae0a1e4ebbe2e931a1c930e0b163387","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:43:23.878423Z","signature_b64":"xTyWP9VWRiG/ib2gUPh7U03zOLaeOqPkqOwK85TpSVz6v7WrV+XsEwZa7UlBsopdSu2CaoPUSlqCSxF1ZEFECA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"71de017074917f78d56c3b870240301e0ae0a1e4ebbe2e931a1c930e0b163387","last_reissued_at":"2026-07-05T07:43:23.877901Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:43:23.877901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.06413","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:43:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3xLxkJayQr2DIYEG0vz55qGfEDUGoXW5zOzg1eStQWeV3WJcAIXO20sRyXEbjoL72Dbv30ZaV/7umDSKDP1SBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T17:27:55.935010Z"},"content_sha256":"cb8b040498d2ea7a6fea4d2328094835f5db60788519de96be34d7e6e735e731","schema_version":"1.0","event_id":"sha256:cb8b040498d2ea7a6fea4d2328094835f5db60788519de96be34d7e6e735e731"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:OHPAC4DUSF7XRVLMHODQEQBQDY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distinguishing the Observational Signatures of Hot Spots Orbiting Reissner-Nordstr\\\"om Spacetime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Tianshu Wu, Yiqian Chen","submitted_at":"2024-02-09T14:00:09Z","abstract_excerpt":"This paper delves into observable signatures of hot spots orbiting Reissner-Nordstr\\\"om (RN) black holes and naked singularities. In a RN black hole case, we find two discernible lensing image tracks in time integrated images capturing a complete orbit of hot spots, and a image shadow within the critical curve where photons with a small impact parameter fall into the event horizon. Conversely, in RN singularities, additional image tracks can be found inner the critical curve, originating from photons reflected by the infinitely high effective potential well. Moreover, we found incomplete and c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.06413","kind":"arxiv","version":1},"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/2402.06413/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":"2026-07-05T07:43:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WgFq7T7gwSUz6k7D5ao7BeETtFfDpBm+ZGs6Ra/4BpdirsmqstYG5wnLA+ONDZQ96qhaaoHdRviiJIR8wvEqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T17:27:55.935853Z"},"content_sha256":"79b85d649eb23dbeab6099930c2e48ecc6d80077bd343d7000886dc607c756b3","schema_version":"1.0","event_id":"sha256:79b85d649eb23dbeab6099930c2e48ecc6d80077bd343d7000886dc607c756b3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OHPAC4DUSF7XRVLMHODQEQBQDY/bundle.json","state_url":"https://pith.science/pith/OHPAC4DUSF7XRVLMHODQEQBQDY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OHPAC4DUSF7XRVLMHODQEQBQDY/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":"2026-08-16T17:27:55Z","links":{"resolver":"https://pith.science/pith/OHPAC4DUSF7XRVLMHODQEQBQDY","bundle":"https://pith.science/pith/OHPAC4DUSF7XRVLMHODQEQBQDY/bundle.json","state":"https://pith.science/pith/OHPAC4DUSF7XRVLMHODQEQBQDY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OHPAC4DUSF7XRVLMHODQEQBQDY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:OHPAC4DUSF7XRVLMHODQEQBQDY","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":"77aea61331d3e25cc570e28273d0ac1d35db303a3338cfdec9b1c26ca8a188d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-02-09T14:00:09Z","title_canon_sha256":"ad4095bbc0f970f030d5e95344f8d34b0dd1347c941f14173692b311923b4a2d"},"schema_version":"1.0","source":{"id":"2402.06413","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.06413","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"arxiv_version","alias_value":"2402.06413v1","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.06413","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"pith_short_12","alias_value":"OHPAC4DUSF7X","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"pith_short_16","alias_value":"OHPAC4DUSF7XRVLM","created_at":"2026-07-05T07:43:23Z"},{"alias_kind":"pith_short_8","alias_value":"OHPAC4DU","created_at":"2026-07-05T07:43:23Z"}],"graph_snapshots":[{"event_id":"sha256:79b85d649eb23dbeab6099930c2e48ecc6d80077bd343d7000886dc607c756b3","target":"graph","created_at":"2026-07-05T07:43:23Z","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/2402.06413/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper delves into observable signatures of hot spots orbiting Reissner-Nordstr\\\"om (RN) black holes and naked singularities. In a RN black hole case, we find two discernible lensing image tracks in time integrated images capturing a complete orbit of hot spots, and a image shadow within the critical curve where photons with a small impact parameter fall into the event horizon. Conversely, in RN singularities, additional image tracks can be found inner the critical curve, originating from photons reflected by the infinitely high effective potential well. Moreover, we found incomplete and c","authors_text":"Tianshu Wu, Yiqian Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-02-09T14:00:09Z","title":"Distinguishing the Observational Signatures of Hot Spots Orbiting Reissner-Nordstr\\\"om Spacetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.06413","kind":"arxiv","version":1},"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:cb8b040498d2ea7a6fea4d2328094835f5db60788519de96be34d7e6e735e731","target":"record","created_at":"2026-07-05T07:43:23Z","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":"77aea61331d3e25cc570e28273d0ac1d35db303a3338cfdec9b1c26ca8a188d2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2024-02-09T14:00:09Z","title_canon_sha256":"ad4095bbc0f970f030d5e95344f8d34b0dd1347c941f14173692b311923b4a2d"},"schema_version":"1.0","source":{"id":"2402.06413","kind":"arxiv","version":1}},"canonical_sha256":"71de017074917f78d56c3b870240301e0ae0a1e4ebbe2e931a1c930e0b163387","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71de017074917f78d56c3b870240301e0ae0a1e4ebbe2e931a1c930e0b163387","first_computed_at":"2026-07-05T07:43:23.877901Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:43:23.877901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xTyWP9VWRiG/ib2gUPh7U03zOLaeOqPkqOwK85TpSVz6v7WrV+XsEwZa7UlBsopdSu2CaoPUSlqCSxF1ZEFECA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:43:23.878423Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.06413","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cb8b040498d2ea7a6fea4d2328094835f5db60788519de96be34d7e6e735e731","sha256:79b85d649eb23dbeab6099930c2e48ecc6d80077bd343d7000886dc607c756b3"],"state_sha256":"ee9ee5979342d2961fb2d494d2ff496ea9fe2d7646d4a1b089a875db944d6595"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"maJQy2f8Hm6YnJRe4Nt9+zW1lt8rSwBBBnfSEKUx3Do1K73HFO0Cbw829Ma6HhhC6u2Vm9XvrmyMVXf7hlkbAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T17:27:55.941398Z","bundle_sha256":"bd1a0890b7515755c459b8fd3a1235334ab461c58cc6fb2f9538c3601565bf9c"}}