{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:OU4Y3IWFIT5HC3G3QD4NUIVWW5","short_pith_number":"pith:OU4Y3IWF","canonical_record":{"source":{"id":"1511.05047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-11-16T17:21:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"225eb708624f807afadc6bd5cf85c33211db5ac243763a024e113118d2ba4dce","abstract_canon_sha256":"0525c9dcf89b95288ac983a4fcff137bba9284cd59548854a13ccc5eaabe12ac"},"schema_version":"1.0"},"canonical_sha256":"75398da2c544fa716cdb80f8da22b6b7743d0444b1f77d0f390477ef73248767","source":{"kind":"arxiv","id":"1511.05047","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.05047","created_at":"2026-05-18T01:22:57Z"},{"alias_kind":"arxiv_version","alias_value":"1511.05047v1","created_at":"2026-05-18T01:22:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.05047","created_at":"2026-05-18T01:22:57Z"},{"alias_kind":"pith_short_12","alias_value":"OU4Y3IWFIT5H","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OU4Y3IWFIT5HC3G3","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OU4Y3IWF","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:OU4Y3IWFIT5HC3G3QD4NUIVWW5","target":"record","payload":{"canonical_record":{"source":{"id":"1511.05047","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-11-16T17:21:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"225eb708624f807afadc6bd5cf85c33211db5ac243763a024e113118d2ba4dce","abstract_canon_sha256":"0525c9dcf89b95288ac983a4fcff137bba9284cd59548854a13ccc5eaabe12ac"},"schema_version":"1.0"},"canonical_sha256":"75398da2c544fa716cdb80f8da22b6b7743d0444b1f77d0f390477ef73248767","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:57.359794Z","signature_b64":"LZ2izH+otVMXnsDiOg/XgPyyhGLI5jd7Rh7KlLIqqnDfjKeMlbG1Nsa5M799XU82syapo8w/ilp9MpgIVwqiDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75398da2c544fa716cdb80f8da22b6b7743d0444b1f77d0f390477ef73248767","last_reissued_at":"2026-05-18T01:22:57.358941Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:57.358941Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.05047","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":"2026-05-18T01:22:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PpHhSi+uQGeWxsohpBXtIdx5RATePeo0yRJYsN5aW3pdgyEpkO5FwTGEeMcguO46TD1pvwLrTnkchiIEBCSMAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T16:27:55.729760Z"},"content_sha256":"bdb23845ef193ca0f524157232bb717d17f1d7d7326f6ade40fe9e26d62a6a56","schema_version":"1.0","event_id":"sha256:bdb23845ef193ca0f524157232bb717d17f1d7d7326f6ade40fe9e26d62a6a56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:OU4Y3IWFIT5HC3G3QD4NUIVWW5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Shadow cast by a Kaluza-Klein spinning dilaton black hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"gr-qc","authors_text":"Ernesto F. Eiroa, Leonardo Amarilla","submitted_at":"2015-11-16T17:21:02Z","abstract_excerpt":"We examine the shadow of a rotating Kaluza-Klein black hole in Einstein gravity coupled to a Maxwell field and a dilaton. The size and the shape of the shadow depend on the mass, the charge, and the angular momentum of the compact object. For a given mass, the size increases with the rotation parameter and decreases with the electric charge. The distortion with respect to the non rotating case grows with the charge and the rotation parameter. For fixed values of these parameters, the shadow is slightly larger and less deformed than in the Kerr-Newman case."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.05047","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":""},"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":"2026-05-18T01:22:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tS6Tb0Wmh3tcYYHfm3lPzh6VtJanM0xDWlEXjocr2GbBG27Yfjk9uJSjTbkn9LzNsR3lpA285PoAIKmaYJqKAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T16:27:55.730222Z"},"content_sha256":"114c8bda2af6fc420631dce30275f7b7d805b4810ee77535a7bf5422eb6b2f96","schema_version":"1.0","event_id":"sha256:114c8bda2af6fc420631dce30275f7b7d805b4810ee77535a7bf5422eb6b2f96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5/bundle.json","state_url":"https://pith.science/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5/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":"2026-08-11T16:27:55Z","links":{"resolver":"https://pith.science/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5","bundle":"https://pith.science/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5/bundle.json","state":"https://pith.science/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OU4Y3IWFIT5HC3G3QD4NUIVWW5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:OU4Y3IWFIT5HC3G3QD4NUIVWW5","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":"0525c9dcf89b95288ac983a4fcff137bba9284cd59548854a13ccc5eaabe12ac","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-11-16T17:21:02Z","title_canon_sha256":"225eb708624f807afadc6bd5cf85c33211db5ac243763a024e113118d2ba4dce"},"schema_version":"1.0","source":{"id":"1511.05047","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.05047","created_at":"2026-05-18T01:22:57Z"},{"alias_kind":"arxiv_version","alias_value":"1511.05047v1","created_at":"2026-05-18T01:22:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.05047","created_at":"2026-05-18T01:22:57Z"},{"alias_kind":"pith_short_12","alias_value":"OU4Y3IWFIT5H","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OU4Y3IWFIT5HC3G3","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OU4Y3IWF","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:114c8bda2af6fc420631dce30275f7b7d805b4810ee77535a7bf5422eb6b2f96","target":"graph","created_at":"2026-05-18T01:22:57Z","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 examine the shadow of a rotating Kaluza-Klein black hole in Einstein gravity coupled to a Maxwell field and a dilaton. The size and the shape of the shadow depend on the mass, the charge, and the angular momentum of the compact object. For a given mass, the size increases with the rotation parameter and decreases with the electric charge. The distortion with respect to the non rotating case grows with the charge and the rotation parameter. For fixed values of these parameters, the shadow is slightly larger and less deformed than in the Kerr-Newman case.","authors_text":"Ernesto F. Eiroa, Leonardo Amarilla","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-11-16T17:21:02Z","title":"Shadow cast by a Kaluza-Klein spinning dilaton black hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.05047","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:bdb23845ef193ca0f524157232bb717d17f1d7d7326f6ade40fe9e26d62a6a56","target":"record","created_at":"2026-05-18T01:22:57Z","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":"0525c9dcf89b95288ac983a4fcff137bba9284cd59548854a13ccc5eaabe12ac","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2015-11-16T17:21:02Z","title_canon_sha256":"225eb708624f807afadc6bd5cf85c33211db5ac243763a024e113118d2ba4dce"},"schema_version":"1.0","source":{"id":"1511.05047","kind":"arxiv","version":1}},"canonical_sha256":"75398da2c544fa716cdb80f8da22b6b7743d0444b1f77d0f390477ef73248767","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75398da2c544fa716cdb80f8da22b6b7743d0444b1f77d0f390477ef73248767","first_computed_at":"2026-05-18T01:22:57.358941Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:57.358941Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LZ2izH+otVMXnsDiOg/XgPyyhGLI5jd7Rh7KlLIqqnDfjKeMlbG1Nsa5M799XU82syapo8w/ilp9MpgIVwqiDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:57.359794Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.05047","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdb23845ef193ca0f524157232bb717d17f1d7d7326f6ade40fe9e26d62a6a56","sha256:114c8bda2af6fc420631dce30275f7b7d805b4810ee77535a7bf5422eb6b2f96"],"state_sha256":"2a763d967c08d2172a6c6ba296cd7fde8afbf1ea7468caddb342fcc5bbb8a83a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KrVRCWQRu/SoQZzqTsvo7IbXzR9j9MT7BCZD0ylVP3IHcWSWVKdmOM7egIDhkgQRIs7RxQatkS0M9poIUvJhBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T16:27:55.735276Z","bundle_sha256":"932ca79a127bc3678d644ad0a85ec7355d77bb1a38355489568a2ae856b38e0b"}}