{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:YPYGY6CM64KJBW5LMQJKSXNCFG","short_pith_number":"pith:YPYGY6CM","canonical_record":{"source":{"id":"2010.09490","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-16T17:42:41Z","cross_cats_sorted":[],"title_canon_sha256":"7371e25401f6fe2f465ddb0e19321c4a65b97dd81a807de76180925723bbce53","abstract_canon_sha256":"f4e77cbe966c4e87cb13f6fea6a6b210fb779b8eccb441f5b11ddfde1d0e65df"},"schema_version":"1.0"},"canonical_sha256":"c3f06c784cf71490dbab6412a95da2298112c978f670b07cdc4f6ea303051717","source":{"kind":"arxiv","id":"2010.09490","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.09490","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"arxiv_version","alias_value":"2010.09490v1","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.09490","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"pith_short_12","alias_value":"YPYGY6CM64KJ","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"pith_short_16","alias_value":"YPYGY6CM64KJBW5L","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"pith_short_8","alias_value":"YPYGY6CM","created_at":"2026-07-05T01:44:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:YPYGY6CM64KJBW5LMQJKSXNCFG","target":"record","payload":{"canonical_record":{"source":{"id":"2010.09490","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-16T17:42:41Z","cross_cats_sorted":[],"title_canon_sha256":"7371e25401f6fe2f465ddb0e19321c4a65b97dd81a807de76180925723bbce53","abstract_canon_sha256":"f4e77cbe966c4e87cb13f6fea6a6b210fb779b8eccb441f5b11ddfde1d0e65df"},"schema_version":"1.0"},"canonical_sha256":"c3f06c784cf71490dbab6412a95da2298112c978f670b07cdc4f6ea303051717","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:44:04.823771Z","signature_b64":"ioLSrgfjQeSY15w+U9GhAoVPbvr/BmnqQ8/Jv9wc8O7hUhgNZ0scLm0gMMs//aQbKVwKcPyMZH0p4G9jG3JnCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3f06c784cf71490dbab6412a95da2298112c978f670b07cdc4f6ea303051717","last_reissued_at":"2026-07-05T01:44:04.823230Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:44:04.823230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.09490","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":"2026-07-05T01:44:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vfR+U0JVKjFormZS2AoncuzLzcUbWptJDRE+6ulOG9sPQy+2l8fxPDYwIRQJN3vr4alQOphNCt7/8Pp6aUD8Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:02:24.512395Z"},"content_sha256":"b3803a4aaf1bb1c6efb73ab9ede8416e4d31c2652d7411d92cf0e4996df1775c","schema_version":"1.0","event_id":"sha256:b3803a4aaf1bb1c6efb73ab9ede8416e4d31c2652d7411d92cf0e4996df1775c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:YPYGY6CM64KJBW5LMQJKSXNCFG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Regular multihorizon black holes in General Relativity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Andrew S. de Siqueira, Manuel E. Rodrigues, Marcos V. de S. Silva","submitted_at":"2020-10-16T17:42:41Z","abstract_excerpt":"In this work, new solutions for regular black holes that have multihorizons are proposed. These are formed by the direct product of solutions already published in the literature, which are described through the coupling of gravity with nonlinear electrodynamics. We analyze the regularity of the spacetime, the electric field, and the energy conditions of each solution. The strong energy condition is always violated within the event horizon in all solutions, while other energy conditions depend on the ratio between extreme charges of isolated solutions. For solutions with four horizons, we prese"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.09490","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/2010.09490/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":"2026-07-05T01:44:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c3tH2UTt7EW6NxAKFOAchx1AmaRvP7aGDDqqzSG3vhee0ZEYM17h/ml/O365kxu+HvQWqULAIDjrm/VcK6i4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T21:02:24.512890Z"},"content_sha256":"5522783212640103e7213f7369303000e9fd3e50395cb496d82606e6a77ebd02","schema_version":"1.0","event_id":"sha256:5522783212640103e7213f7369303000e9fd3e50395cb496d82606e6a77ebd02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YPYGY6CM64KJBW5LMQJKSXNCFG/bundle.json","state_url":"https://pith.science/pith/YPYGY6CM64KJBW5LMQJKSXNCFG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YPYGY6CM64KJBW5LMQJKSXNCFG/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":"2026-08-04T21:02:24Z","links":{"resolver":"https://pith.science/pith/YPYGY6CM64KJBW5LMQJKSXNCFG","bundle":"https://pith.science/pith/YPYGY6CM64KJBW5LMQJKSXNCFG/bundle.json","state":"https://pith.science/pith/YPYGY6CM64KJBW5LMQJKSXNCFG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YPYGY6CM64KJBW5LMQJKSXNCFG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:YPYGY6CM64KJBW5LMQJKSXNCFG","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":"f4e77cbe966c4e87cb13f6fea6a6b210fb779b8eccb441f5b11ddfde1d0e65df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-16T17:42:41Z","title_canon_sha256":"7371e25401f6fe2f465ddb0e19321c4a65b97dd81a807de76180925723bbce53"},"schema_version":"1.0","source":{"id":"2010.09490","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.09490","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"arxiv_version","alias_value":"2010.09490v1","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.09490","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"pith_short_12","alias_value":"YPYGY6CM64KJ","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"pith_short_16","alias_value":"YPYGY6CM64KJBW5L","created_at":"2026-07-05T01:44:04Z"},{"alias_kind":"pith_short_8","alias_value":"YPYGY6CM","created_at":"2026-07-05T01:44:04Z"}],"graph_snapshots":[{"event_id":"sha256:5522783212640103e7213f7369303000e9fd3e50395cb496d82606e6a77ebd02","target":"graph","created_at":"2026-07-05T01:44:04Z","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/2010.09490/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, new solutions for regular black holes that have multihorizons are proposed. These are formed by the direct product of solutions already published in the literature, which are described through the coupling of gravity with nonlinear electrodynamics. We analyze the regularity of the spacetime, the electric field, and the energy conditions of each solution. The strong energy condition is always violated within the event horizon in all solutions, while other energy conditions depend on the ratio between extreme charges of isolated solutions. For solutions with four horizons, we prese","authors_text":"Andrew S. de Siqueira, Manuel E. Rodrigues, Marcos V. de S. Silva","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-16T17:42:41Z","title":"Regular multihorizon black holes in General Relativity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.09490","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:b3803a4aaf1bb1c6efb73ab9ede8416e4d31c2652d7411d92cf0e4996df1775c","target":"record","created_at":"2026-07-05T01:44:04Z","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":"f4e77cbe966c4e87cb13f6fea6a6b210fb779b8eccb441f5b11ddfde1d0e65df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-10-16T17:42:41Z","title_canon_sha256":"7371e25401f6fe2f465ddb0e19321c4a65b97dd81a807de76180925723bbce53"},"schema_version":"1.0","source":{"id":"2010.09490","kind":"arxiv","version":1}},"canonical_sha256":"c3f06c784cf71490dbab6412a95da2298112c978f670b07cdc4f6ea303051717","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c3f06c784cf71490dbab6412a95da2298112c978f670b07cdc4f6ea303051717","first_computed_at":"2026-07-05T01:44:04.823230Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:44:04.823230Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ioLSrgfjQeSY15w+U9GhAoVPbvr/BmnqQ8/Jv9wc8O7hUhgNZ0scLm0gMMs//aQbKVwKcPyMZH0p4G9jG3JnCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:44:04.823771Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.09490","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b3803a4aaf1bb1c6efb73ab9ede8416e4d31c2652d7411d92cf0e4996df1775c","sha256:5522783212640103e7213f7369303000e9fd3e50395cb496d82606e6a77ebd02"],"state_sha256":"67c86c67c11f934dcf28f47e6a9c3fe9b5101ac023c0b39af20f092879db0454"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S16dNxgC+oS6cvLfUIzQCH4s2SP4CmZEbooNE+1SbOzM3dfVLY/wwto3SoTTnNbPBPHh5kMR9Fj7vNILyUg2CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T21:02:24.517552Z","bundle_sha256":"3e58461b35c4f2d7f2d55984a09ab960c39fc293450608a10f89007f3a7918dd"}}