{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:A77NJH5JN6AYYXHR5BZLQQWAIN","short_pith_number":"pith:A77NJH5J","canonical_record":{"source":{"id":"1506.04667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-06-15T16:56:01Z","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"title_canon_sha256":"ed856dd16542a005d880e70bcdab5f67e30d51c547dd5ca55921f792ac8d79e8","abstract_canon_sha256":"d5fa93a9254dd7f1db7860517af5bd437ee7d4718faaebfe8d6ea9911f956ce4"},"schema_version":"1.0"},"canonical_sha256":"07fed49fa96f818c5cf1e872b842c04363967504a056a54a2bfb4f16b319d048","source":{"kind":"arxiv","id":"1506.04667","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04667","created_at":"2026-05-18T01:28:55Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04667v1","created_at":"2026-05-18T01:28:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04667","created_at":"2026-05-18T01:28:55Z"},{"alias_kind":"pith_short_12","alias_value":"A77NJH5JN6AY","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"A77NJH5JN6AYYXHR","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"A77NJH5J","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:A77NJH5JN6AYYXHR5BZLQQWAIN","target":"record","payload":{"canonical_record":{"source":{"id":"1506.04667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-06-15T16:56:01Z","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"title_canon_sha256":"ed856dd16542a005d880e70bcdab5f67e30d51c547dd5ca55921f792ac8d79e8","abstract_canon_sha256":"d5fa93a9254dd7f1db7860517af5bd437ee7d4718faaebfe8d6ea9911f956ce4"},"schema_version":"1.0"},"canonical_sha256":"07fed49fa96f818c5cf1e872b842c04363967504a056a54a2bfb4f16b319d048","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:28:55.058200Z","signature_b64":"zQlxCIr/KQpqay5F8XrQuv4f/33W3/X7HlzWZhmdbG3fvj7aYKjXKOLOdvJIviWGwijwrb0JOtWUa6HGqFX8Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07fed49fa96f818c5cf1e872b842c04363967504a056a54a2bfb4f16b319d048","last_reissued_at":"2026-05-18T01:28:55.057691Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:28:55.057691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.04667","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":"2026-05-18T01:28:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uNWEoNfhv7eX13afwtssnGdur0nHgdVj//dS4hRrU96lUy0q37StogDXDsX+lpZMuXtwXen5rAxRGuUSNt3KDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T12:30:26.499115Z"},"content_sha256":"6b86d3425ad3d32047fd1771d5dd5252d4c46a48ef7d166bae0633c0819d1106","schema_version":"1.0","event_id":"sha256:6b86d3425ad3d32047fd1771d5dd5252d4c46a48ef7d166bae0633c0819d1106"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:A77NJH5JN6AYYXHR5BZLQQWAIN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Early-time cosmological solutions in Einstein-scalar-Gauss-Bonnet theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Naresh Dadhich, Panagiota Kanti, Radouane Gannouji","submitted_at":"2015-06-15T16:56:01Z","abstract_excerpt":"In this work, we consider a generalised gravitational theory that contains the Einstein term, a scalar field and the quadratic Gauss-Bonnet term. We focus on the early-universe dynamics, and demonstrate that a simple choice of the coupling function between the scalar field and the Gauss-Bonnet term and a simplifying assumption regarding the role of the Ricci scalar can lead to new, analytical, elegant solutions with interesting characteristics. We first argue, and demonstrate in the context of two different models, that the presence of the Ricci scalar in the theory at early times, when the cu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04667","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":"2026-05-18T01:28:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eQeNlBDSmLLGDeRFjaQj0FF/bCXUYWDgCG9qbeebvnxL/TGBJgMOuI6iTtm4U0p5c9jjODuWR+F2deig9eO4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T12:30:26.499572Z"},"content_sha256":"7c9e4ebf034025be485255514f1aa4398532b49a3a56b10e45727a3655a0961b","schema_version":"1.0","event_id":"sha256:7c9e4ebf034025be485255514f1aa4398532b49a3a56b10e45727a3655a0961b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A77NJH5JN6AYYXHR5BZLQQWAIN/bundle.json","state_url":"https://pith.science/pith/A77NJH5JN6AYYXHR5BZLQQWAIN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A77NJH5JN6AYYXHR5BZLQQWAIN/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":"2026-08-22T12:30:26Z","links":{"resolver":"https://pith.science/pith/A77NJH5JN6AYYXHR5BZLQQWAIN","bundle":"https://pith.science/pith/A77NJH5JN6AYYXHR5BZLQQWAIN/bundle.json","state":"https://pith.science/pith/A77NJH5JN6AYYXHR5BZLQQWAIN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A77NJH5JN6AYYXHR5BZLQQWAIN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:A77NJH5JN6AYYXHR5BZLQQWAIN","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":"d5fa93a9254dd7f1db7860517af5bd437ee7d4718faaebfe8d6ea9911f956ce4","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-06-15T16:56:01Z","title_canon_sha256":"ed856dd16542a005d880e70bcdab5f67e30d51c547dd5ca55921f792ac8d79e8"},"schema_version":"1.0","source":{"id":"1506.04667","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.04667","created_at":"2026-05-18T01:28:55Z"},{"alias_kind":"arxiv_version","alias_value":"1506.04667v1","created_at":"2026-05-18T01:28:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.04667","created_at":"2026-05-18T01:28:55Z"},{"alias_kind":"pith_short_12","alias_value":"A77NJH5JN6AY","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"A77NJH5JN6AYYXHR","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"A77NJH5J","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:7c9e4ebf034025be485255514f1aa4398532b49a3a56b10e45727a3655a0961b","target":"graph","created_at":"2026-05-18T01:28:55Z","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 this work, we consider a generalised gravitational theory that contains the Einstein term, a scalar field and the quadratic Gauss-Bonnet term. We focus on the early-universe dynamics, and demonstrate that a simple choice of the coupling function between the scalar field and the Gauss-Bonnet term and a simplifying assumption regarding the role of the Ricci scalar can lead to new, analytical, elegant solutions with interesting characteristics. We first argue, and demonstrate in the context of two different models, that the presence of the Ricci scalar in the theory at early times, when the cu","authors_text":"Naresh Dadhich, Panagiota Kanti, Radouane Gannouji","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-06-15T16:56:01Z","title":"Early-time cosmological solutions in Einstein-scalar-Gauss-Bonnet theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.04667","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":"sha256:6b86d3425ad3d32047fd1771d5dd5252d4c46a48ef7d166bae0633c0819d1106","target":"record","created_at":"2026-05-18T01:28:55Z","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":"d5fa93a9254dd7f1db7860517af5bd437ee7d4718faaebfe8d6ea9911f956ce4","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2015-06-15T16:56:01Z","title_canon_sha256":"ed856dd16542a005d880e70bcdab5f67e30d51c547dd5ca55921f792ac8d79e8"},"schema_version":"1.0","source":{"id":"1506.04667","kind":"arxiv","version":1}},"canonical_sha256":"07fed49fa96f818c5cf1e872b842c04363967504a056a54a2bfb4f16b319d048","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07fed49fa96f818c5cf1e872b842c04363967504a056a54a2bfb4f16b319d048","first_computed_at":"2026-05-18T01:28:55.057691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:28:55.057691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zQlxCIr/KQpqay5F8XrQuv4f/33W3/X7HlzWZhmdbG3fvj7aYKjXKOLOdvJIviWGwijwrb0JOtWUa6HGqFX8Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:28:55.058200Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.04667","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b86d3425ad3d32047fd1771d5dd5252d4c46a48ef7d166bae0633c0819d1106","sha256:7c9e4ebf034025be485255514f1aa4398532b49a3a56b10e45727a3655a0961b"],"state_sha256":"507cc9fe001671906c1cf063af68eea086863c5533d9c5d627b0e28079747018"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jGcw2vvSCy+ivpWBTubnvbhlHhe7vLHlQrWp33atzbo1wpZhc/qm8u99geianjCxXGZ+Jw4QHkTiM8BVpZJyDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T12:30:26.503173Z","bundle_sha256":"55e23e693c840d7b29cf396719dc3ab1eac0e6789704ee6b4ab14395dc50ca50"}}