{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3SJIAQWPIR223BG2UJNVGTP2KM","short_pith_number":"pith:3SJIAQWP","canonical_record":{"source":{"id":"1708.03627","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-11T17:48:07Z","cross_cats_sorted":["gr-qc","math.DG"],"title_canon_sha256":"e6261575f98aca12e9150e13d16a0fe0ae1a1ccc43c869cc3fe747e483c70785","abstract_canon_sha256":"921c4956a83101da1943798a8ce1d2aaaf78c015b47b2295a9c5781d350d9f19"},"schema_version":"1.0"},"canonical_sha256":"dc928042cf4475ad84daa25b534dfa532aef52385450788a77407f39fac82260","source":{"kind":"arxiv","id":"1708.03627","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.03627","created_at":"2026-05-18T00:30:00Z"},{"alias_kind":"arxiv_version","alias_value":"1708.03627v2","created_at":"2026-05-18T00:30:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.03627","created_at":"2026-05-18T00:30:00Z"},{"alias_kind":"pith_short_12","alias_value":"3SJIAQWPIR22","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3SJIAQWPIR223BG2","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3SJIAQWP","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3SJIAQWPIR223BG2UJNVGTP2KM","target":"record","payload":{"canonical_record":{"source":{"id":"1708.03627","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-11T17:48:07Z","cross_cats_sorted":["gr-qc","math.DG"],"title_canon_sha256":"e6261575f98aca12e9150e13d16a0fe0ae1a1ccc43c869cc3fe747e483c70785","abstract_canon_sha256":"921c4956a83101da1943798a8ce1d2aaaf78c015b47b2295a9c5781d350d9f19"},"schema_version":"1.0"},"canonical_sha256":"dc928042cf4475ad84daa25b534dfa532aef52385450788a77407f39fac82260","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:30:00.662452Z","signature_b64":"qezwoYLHty+EAj5kZ//cF5IUmPj4+zXLvKkt8fYZN427hV+3Crl1+hoKH/niXb2/dJo7ozoFrolgB1ghpjgvDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc928042cf4475ad84daa25b534dfa532aef52385450788a77407f39fac82260","last_reissued_at":"2026-05-18T00:30:00.661736Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:30:00.661736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.03627","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:30:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZyQG4yNcdB1tIQtpSCnaZoH6aR0UDu983bcbmh7NGRM3cl5Zy3/TBr70l2g1VE79m80a5xZE1/Jz+qs7/9eEBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:31:08.896208Z"},"content_sha256":"418b8a015dc22a9f3205308b4ca044599c06894db8c44f94dfdf2d2e5439b09e","schema_version":"1.0","event_id":"sha256:418b8a015dc22a9f3205308b4ca044599c06894db8c44f94dfdf2d2e5439b09e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3SJIAQWPIR223BG2UJNVGTP2KM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonexistence of Extremal de Sitter Black Rings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","math.DG"],"primary_cat":"hep-th","authors_text":"Eric Woolgar, Marcus Khuri","submitted_at":"2017-08-11T17:48:07Z","abstract_excerpt":"We show that near-horizon geometries in the presence of a positive cosmological constant cannot exist with ring topology. In particular, de Sitter black rings with vanishing surface gravity do not exist. Our result relies on a known mathematical theorem which is a straightforward consequence of a type of energy condition for a modified Ricci tensor, similar to the curvature-dimension conditions for the $m$-Bakry-\\'Emery-Ricci tensor."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.03627","kind":"arxiv","version":2},"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":"2026-05-18T00:30:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bwpUbNgUL6IF99NE2GQpp5tTONgreka43UHCh5GK0O1Q2eSvUSU265kdYWTHWr68wgASxvpr1WZCJXSToVHIBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:31:08.896582Z"},"content_sha256":"1ade29a3f94ba944396bb0fc81edd35e7396a9ac07beae41dc0dc7fdc3c24989","schema_version":"1.0","event_id":"sha256:1ade29a3f94ba944396bb0fc81edd35e7396a9ac07beae41dc0dc7fdc3c24989"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3SJIAQWPIR223BG2UJNVGTP2KM/bundle.json","state_url":"https://pith.science/pith/3SJIAQWPIR223BG2UJNVGTP2KM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3SJIAQWPIR223BG2UJNVGTP2KM/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":"2026-06-11T14:31:08Z","links":{"resolver":"https://pith.science/pith/3SJIAQWPIR223BG2UJNVGTP2KM","bundle":"https://pith.science/pith/3SJIAQWPIR223BG2UJNVGTP2KM/bundle.json","state":"https://pith.science/pith/3SJIAQWPIR223BG2UJNVGTP2KM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3SJIAQWPIR223BG2UJNVGTP2KM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3SJIAQWPIR223BG2UJNVGTP2KM","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":"921c4956a83101da1943798a8ce1d2aaaf78c015b47b2295a9c5781d350d9f19","cross_cats_sorted":["gr-qc","math.DG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-11T17:48:07Z","title_canon_sha256":"e6261575f98aca12e9150e13d16a0fe0ae1a1ccc43c869cc3fe747e483c70785"},"schema_version":"1.0","source":{"id":"1708.03627","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.03627","created_at":"2026-05-18T00:30:00Z"},{"alias_kind":"arxiv_version","alias_value":"1708.03627v2","created_at":"2026-05-18T00:30:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.03627","created_at":"2026-05-18T00:30:00Z"},{"alias_kind":"pith_short_12","alias_value":"3SJIAQWPIR22","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3SJIAQWPIR223BG2","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3SJIAQWP","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:1ade29a3f94ba944396bb0fc81edd35e7396a9ac07beae41dc0dc7fdc3c24989","target":"graph","created_at":"2026-05-18T00:30:00Z","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 show that near-horizon geometries in the presence of a positive cosmological constant cannot exist with ring topology. In particular, de Sitter black rings with vanishing surface gravity do not exist. Our result relies on a known mathematical theorem which is a straightforward consequence of a type of energy condition for a modified Ricci tensor, similar to the curvature-dimension conditions for the $m$-Bakry-\\'Emery-Ricci tensor.","authors_text":"Eric Woolgar, Marcus Khuri","cross_cats":["gr-qc","math.DG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-11T17:48:07Z","title":"Nonexistence of Extremal de Sitter Black Rings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.03627","kind":"arxiv","version":2},"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":"sha256:418b8a015dc22a9f3205308b4ca044599c06894db8c44f94dfdf2d2e5439b09e","target":"record","created_at":"2026-05-18T00:30:00Z","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":"921c4956a83101da1943798a8ce1d2aaaf78c015b47b2295a9c5781d350d9f19","cross_cats_sorted":["gr-qc","math.DG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-08-11T17:48:07Z","title_canon_sha256":"e6261575f98aca12e9150e13d16a0fe0ae1a1ccc43c869cc3fe747e483c70785"},"schema_version":"1.0","source":{"id":"1708.03627","kind":"arxiv","version":2}},"canonical_sha256":"dc928042cf4475ad84daa25b534dfa532aef52385450788a77407f39fac82260","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc928042cf4475ad84daa25b534dfa532aef52385450788a77407f39fac82260","first_computed_at":"2026-05-18T00:30:00.661736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:30:00.661736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qezwoYLHty+EAj5kZ//cF5IUmPj4+zXLvKkt8fYZN427hV+3Crl1+hoKH/niXb2/dJo7ozoFrolgB1ghpjgvDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:30:00.662452Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.03627","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:418b8a015dc22a9f3205308b4ca044599c06894db8c44f94dfdf2d2e5439b09e","sha256:1ade29a3f94ba944396bb0fc81edd35e7396a9ac07beae41dc0dc7fdc3c24989"],"state_sha256":"68dc6f5aa0ebeb78b40aad40c067a2b7b13a329f88bea23d1cb825f78dde5bb9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xjyf1ensa7RyEm0AvpJpnTmroITpufK9b81JiloE9zwQDFRfE3Jy/HdGixOa/xQnsx+NyNTJe4LMSj6bq3rwBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T14:31:08.898576Z","bundle_sha256":"24af7078485cd38e3c2ef31452e0ccf9d770d4215b7118e48eaf1a771ea2f8d3"}}