{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:4YW7N4D7SAOOXAKV22BM3RN4HI","short_pith_number":"pith:4YW7N4D7","canonical_record":{"source":{"id":"1804.11170","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-30T13:08:40Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"4837e62e058bb77857906d980f60d80c74830977fa1e843da8d42c3dff62f8db","abstract_canon_sha256":"428aad83fdf26a202dbd9fe72c5ac47d8c0c2f9fecea7a442b4760e0d15100f8"},"schema_version":"1.0"},"canonical_sha256":"e62df6f07f901ceb8155d682cdc5bc3a01d60ee2d5e6fc9fe44039304c710e1a","source":{"kind":"arxiv","id":"1804.11170","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.11170","created_at":"2026-05-18T00:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1804.11170v2","created_at":"2026-05-18T00:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.11170","created_at":"2026-05-18T00:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"4YW7N4D7SAOO","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4YW7N4D7SAOOXAKV","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4YW7N4D7","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:4YW7N4D7SAOOXAKV22BM3RN4HI","target":"record","payload":{"canonical_record":{"source":{"id":"1804.11170","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-30T13:08:40Z","cross_cats_sorted":["astro-ph.HE","hep-th"],"title_canon_sha256":"4837e62e058bb77857906d980f60d80c74830977fa1e843da8d42c3dff62f8db","abstract_canon_sha256":"428aad83fdf26a202dbd9fe72c5ac47d8c0c2f9fecea7a442b4760e0d15100f8"},"schema_version":"1.0"},"canonical_sha256":"e62df6f07f901ceb8155d682cdc5bc3a01d60ee2d5e6fc9fe44039304c710e1a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:17.669636Z","signature_b64":"TyAOHm37s99qT3alBVWTpHjKdcjo90BpZKODN5mmdAuzdXvI0QNalzzWwgQtbeeyJ6AQAEyEyb9zenApa764AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e62df6f07f901ceb8155d682cdc5bc3a01d60ee2d5e6fc9fe44039304c710e1a","last_reissued_at":"2026-05-18T00:07:17.669029Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:17.669029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.11170","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":"2026-05-18T00:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JO47jxzgpzx0omdYpzVssNRpeWYDBaUUZVPnqyDvqYE7NBWoFtC2RyN53lLcePa8yPySvCMuwUSCB0kUpyq0AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:02:23.148095Z"},"content_sha256":"cd5098b89245434597e45cf1fc2c5a16a03a4a4f474cf268259cfe0fdb3aef80","schema_version":"1.0","event_id":"sha256:cd5098b89245434597e45cf1fc2c5a16a03a4a4f474cf268259cfe0fdb3aef80"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:4YW7N4D7SAOOXAKV22BM3RN4HI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No stable wormholes in Einstein-dilaton-Gauss-Bonnet theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","hep-th"],"primary_cat":"gr-qc","authors_text":"A. Zhidenko, M. A. Cuyubamba, R. A. Konoplya","submitted_at":"2018-04-30T13:08:40Z","abstract_excerpt":"In [P. Kanti, B. Kleihaus, J. Kunz, Phys. Rev. Lett. 107, 271101 (2011)] it was shown that the four-dimensional Einstein-dilaton-Gauss-Bonnet theory allows for wormholes without introducing any exotic matter. The numerical solution for the wormhole was obtained there and it was claimed that this solution is gravitationally stable against radial perturbations, what, by now, would mean the only known theoretical possibility for existence of an apparently stable, four-dimensional and asymptotically flat wormhole without exotic matter. Here, more detailed analysis of perturbations shows that the K"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.11170","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":"2026-05-18T00:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zF4M62sOZNqQd6vGCSqHjRZjgKHDuSEsLCsQ+hemjNT2YK5Q9vzV+ubi+4P1VE5fFgID7y8eFIubkxpBR504Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:02:23.148677Z"},"content_sha256":"ffdb80077146dde6335ba48a10e582cf06c5a12c4d99730d9fd41998f3e0acf4","schema_version":"1.0","event_id":"sha256:ffdb80077146dde6335ba48a10e582cf06c5a12c4d99730d9fd41998f3e0acf4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4YW7N4D7SAOOXAKV22BM3RN4HI/bundle.json","state_url":"https://pith.science/pith/4YW7N4D7SAOOXAKV22BM3RN4HI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4YW7N4D7SAOOXAKV22BM3RN4HI/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":"2026-05-31T02:02:23Z","links":{"resolver":"https://pith.science/pith/4YW7N4D7SAOOXAKV22BM3RN4HI","bundle":"https://pith.science/pith/4YW7N4D7SAOOXAKV22BM3RN4HI/bundle.json","state":"https://pith.science/pith/4YW7N4D7SAOOXAKV22BM3RN4HI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4YW7N4D7SAOOXAKV22BM3RN4HI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:4YW7N4D7SAOOXAKV22BM3RN4HI","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":"428aad83fdf26a202dbd9fe72c5ac47d8c0c2f9fecea7a442b4760e0d15100f8","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-30T13:08:40Z","title_canon_sha256":"4837e62e058bb77857906d980f60d80c74830977fa1e843da8d42c3dff62f8db"},"schema_version":"1.0","source":{"id":"1804.11170","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.11170","created_at":"2026-05-18T00:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1804.11170v2","created_at":"2026-05-18T00:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.11170","created_at":"2026-05-18T00:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"4YW7N4D7SAOO","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"4YW7N4D7SAOOXAKV","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"4YW7N4D7","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:ffdb80077146dde6335ba48a10e582cf06c5a12c4d99730d9fd41998f3e0acf4","target":"graph","created_at":"2026-05-18T00:07:17Z","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 [P. Kanti, B. Kleihaus, J. Kunz, Phys. Rev. Lett. 107, 271101 (2011)] it was shown that the four-dimensional Einstein-dilaton-Gauss-Bonnet theory allows for wormholes without introducing any exotic matter. The numerical solution for the wormhole was obtained there and it was claimed that this solution is gravitationally stable against radial perturbations, what, by now, would mean the only known theoretical possibility for existence of an apparently stable, four-dimensional and asymptotically flat wormhole without exotic matter. Here, more detailed analysis of perturbations shows that the K","authors_text":"A. Zhidenko, M. A. Cuyubamba, R. A. Konoplya","cross_cats":["astro-ph.HE","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-30T13:08:40Z","title":"No stable wormholes in Einstein-dilaton-Gauss-Bonnet theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.11170","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:cd5098b89245434597e45cf1fc2c5a16a03a4a4f474cf268259cfe0fdb3aef80","target":"record","created_at":"2026-05-18T00:07:17Z","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":"428aad83fdf26a202dbd9fe72c5ac47d8c0c2f9fecea7a442b4760e0d15100f8","cross_cats_sorted":["astro-ph.HE","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-30T13:08:40Z","title_canon_sha256":"4837e62e058bb77857906d980f60d80c74830977fa1e843da8d42c3dff62f8db"},"schema_version":"1.0","source":{"id":"1804.11170","kind":"arxiv","version":2}},"canonical_sha256":"e62df6f07f901ceb8155d682cdc5bc3a01d60ee2d5e6fc9fe44039304c710e1a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e62df6f07f901ceb8155d682cdc5bc3a01d60ee2d5e6fc9fe44039304c710e1a","first_computed_at":"2026-05-18T00:07:17.669029Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:17.669029Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TyAOHm37s99qT3alBVWTpHjKdcjo90BpZKODN5mmdAuzdXvI0QNalzzWwgQtbeeyJ6AQAEyEyb9zenApa764AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:17.669636Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.11170","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cd5098b89245434597e45cf1fc2c5a16a03a4a4f474cf268259cfe0fdb3aef80","sha256:ffdb80077146dde6335ba48a10e582cf06c5a12c4d99730d9fd41998f3e0acf4"],"state_sha256":"d55ea64d3166433a762f0fa0dcbd253c415ae50330f6c42f476146e6c64ced63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WxfZl4+Faf4k5iBOxqPK8DYM+G/M9s1oAy44ZJO0vqPjT810mLQDNGu1jx3TD7OfyMihnA90FIvSiI2aHkcpDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:02:23.151441Z","bundle_sha256":"b4b25ee51c66e4ab9d5bdf4979fde200e1e0b8a06cee7fb4cff2e6622d313312"}}