{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7YPSYGAUKFFZSLSK6HETOI4UDM","short_pith_number":"pith:7YPSYGAU","canonical_record":{"source":{"id":"1706.03454","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-06-12T03:51:24Z","cross_cats_sorted":[],"title_canon_sha256":"3dde6eca2f61b06f898abba85c3eb319bd1fc50b13870ebf81998eb8196aba2c","abstract_canon_sha256":"10d47e39c536e38d4f392db23d350726ad3ef9f1ef0c60b328443cf5cde8dc91"},"schema_version":"1.0"},"canonical_sha256":"fe1f2c1814514b992e4af1c93723941b2e43d81f483a551f70a60a954246a1bc","source":{"kind":"arxiv","id":"1706.03454","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03454","created_at":"2026-05-18T00:42:35Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03454v1","created_at":"2026-05-18T00:42:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03454","created_at":"2026-05-18T00:42:35Z"},{"alias_kind":"pith_short_12","alias_value":"7YPSYGAUKFFZ","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7YPSYGAUKFFZSLSK","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7YPSYGAU","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7YPSYGAUKFFZSLSK6HETOI4UDM","target":"record","payload":{"canonical_record":{"source":{"id":"1706.03454","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-06-12T03:51:24Z","cross_cats_sorted":[],"title_canon_sha256":"3dde6eca2f61b06f898abba85c3eb319bd1fc50b13870ebf81998eb8196aba2c","abstract_canon_sha256":"10d47e39c536e38d4f392db23d350726ad3ef9f1ef0c60b328443cf5cde8dc91"},"schema_version":"1.0"},"canonical_sha256":"fe1f2c1814514b992e4af1c93723941b2e43d81f483a551f70a60a954246a1bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:35.645431Z","signature_b64":"xIHsu1LO3fAGQemL4RWif+Z9N0mBCDpSEJu8Yc0fumXV8vKA+sg1s88ZWAlaS+EQsIHBRaMy0pHc649PUXuOCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe1f2c1814514b992e4af1c93723941b2e43d81f483a551f70a60a954246a1bc","last_reissued_at":"2026-05-18T00:42:35.644912Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:35.644912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.03454","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":"2026-05-18T00:42:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QyNCO6Z7+JsH60a/RpI93/fes+HPvm5PrBkiSUUTPtJnhfJDOhrEPEx2oj15C1DyJmFZj/r3RVG+2Y5Ig96VAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:40:00.594471Z"},"content_sha256":"d628de975c48c3468257b4138b5c1e5f52b579dbaeebdf9deb1cb36f9379adf7","schema_version":"1.0","event_id":"sha256:d628de975c48c3468257b4138b5c1e5f52b579dbaeebdf9deb1cb36f9379adf7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7YPSYGAUKFFZSLSK6HETOI4UDM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Regular Reissner-Nordstr\\\"om black hole solutions from linear electrodynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"J. Ponce de Leon","submitted_at":"2017-06-12T03:51:24Z","abstract_excerpt":"In recent years there have appeared in the literature a large number of static, spherically symmetric metrics, which are regular at the origin, asymptotically flat, and have both an event and a Cauchy horizon for certain range of the parameters. They have been interpreted as regular black hole (BH) spacetimes, and their physical source attributed to electric or magnetic monopoles in a suitable chosen nonlinear electrodynamics. Here we show that these metrics can also be interpreted as exact solutions of the Einstein equations coupled to ordinary linear electromagnetism{\\textemdash}i.e., as sou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03454","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":"2026-05-18T00:42:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f0J0KX2RAi7zqooQdD8GfbGuAfVgjhA1VQOaVPwy5gNbRlu8aRaKfmbR19Onpb2dA7mC+aP6BR1tc5RyY4fYAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:40:00.594810Z"},"content_sha256":"877e0638c3efe588dc9f66a93ee8282a3351810682eb6cc6e8b4c6854461f9a6","schema_version":"1.0","event_id":"sha256:877e0638c3efe588dc9f66a93ee8282a3351810682eb6cc6e8b4c6854461f9a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YPSYGAUKFFZSLSK6HETOI4UDM/bundle.json","state_url":"https://pith.science/pith/7YPSYGAUKFFZSLSK6HETOI4UDM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YPSYGAUKFFZSLSK6HETOI4UDM/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":"2026-06-03T03:40:00Z","links":{"resolver":"https://pith.science/pith/7YPSYGAUKFFZSLSK6HETOI4UDM","bundle":"https://pith.science/pith/7YPSYGAUKFFZSLSK6HETOI4UDM/bundle.json","state":"https://pith.science/pith/7YPSYGAUKFFZSLSK6HETOI4UDM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YPSYGAUKFFZSLSK6HETOI4UDM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7YPSYGAUKFFZSLSK6HETOI4UDM","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":"10d47e39c536e38d4f392db23d350726ad3ef9f1ef0c60b328443cf5cde8dc91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-06-12T03:51:24Z","title_canon_sha256":"3dde6eca2f61b06f898abba85c3eb319bd1fc50b13870ebf81998eb8196aba2c"},"schema_version":"1.0","source":{"id":"1706.03454","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03454","created_at":"2026-05-18T00:42:35Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03454v1","created_at":"2026-05-18T00:42:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03454","created_at":"2026-05-18T00:42:35Z"},{"alias_kind":"pith_short_12","alias_value":"7YPSYGAUKFFZ","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7YPSYGAUKFFZSLSK","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7YPSYGAU","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:877e0638c3efe588dc9f66a93ee8282a3351810682eb6cc6e8b4c6854461f9a6","target":"graph","created_at":"2026-05-18T00:42:35Z","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":"In recent years there have appeared in the literature a large number of static, spherically symmetric metrics, which are regular at the origin, asymptotically flat, and have both an event and a Cauchy horizon for certain range of the parameters. They have been interpreted as regular black hole (BH) spacetimes, and their physical source attributed to electric or magnetic monopoles in a suitable chosen nonlinear electrodynamics. Here we show that these metrics can also be interpreted as exact solutions of the Einstein equations coupled to ordinary linear electromagnetism{\\textemdash}i.e., as sou","authors_text":"J. Ponce de Leon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-06-12T03:51:24Z","title":"Regular Reissner-Nordstr\\\"om black hole solutions from linear electrodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03454","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:d628de975c48c3468257b4138b5c1e5f52b579dbaeebdf9deb1cb36f9379adf7","target":"record","created_at":"2026-05-18T00:42:35Z","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":"10d47e39c536e38d4f392db23d350726ad3ef9f1ef0c60b328443cf5cde8dc91","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-06-12T03:51:24Z","title_canon_sha256":"3dde6eca2f61b06f898abba85c3eb319bd1fc50b13870ebf81998eb8196aba2c"},"schema_version":"1.0","source":{"id":"1706.03454","kind":"arxiv","version":1}},"canonical_sha256":"fe1f2c1814514b992e4af1c93723941b2e43d81f483a551f70a60a954246a1bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe1f2c1814514b992e4af1c93723941b2e43d81f483a551f70a60a954246a1bc","first_computed_at":"2026-05-18T00:42:35.644912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:35.644912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xIHsu1LO3fAGQemL4RWif+Z9N0mBCDpSEJu8Yc0fumXV8vKA+sg1s88ZWAlaS+EQsIHBRaMy0pHc649PUXuOCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:35.645431Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.03454","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d628de975c48c3468257b4138b5c1e5f52b579dbaeebdf9deb1cb36f9379adf7","sha256:877e0638c3efe588dc9f66a93ee8282a3351810682eb6cc6e8b4c6854461f9a6"],"state_sha256":"d35e97b592503e2868814d81882fb3605697c8274ecb5c632b60e1cd76d6b3e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PsJzJkgtGBrzja+z0SI5rIn93qyb6ksV9wkjXLHSeiBqfLETELOHJZ0WIWeM6gkCV68okQ3ONamxwwcVOb/kAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T03:40:00.596690Z","bundle_sha256":"06f0130cc6644e9789770ec7eed2ce5a9a09e0b28cafc9fbe70bf84da4940424"}}