{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:KVBLRKHMNERUIFQSC75BZDQATG","short_pith_number":"pith:KVBLRKHM","canonical_record":{"source":{"id":"1012.0953","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-12-04T22:24:39Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"91bda54edebcbaea1d208d687058a5f709cd4a636900199a4a731f2cc4478024","abstract_canon_sha256":"b4f4cb8db5af94bee902b02accee1189453082546724b2a1c8c47c12aa919f91"},"schema_version":"1.0"},"canonical_sha256":"5542b8a8ec692344161217fa1c8e00998a0b463f8a6eca18991eee747804fea3","source":{"kind":"arxiv","id":"1012.0953","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.0953","created_at":"2026-05-18T02:23:15Z"},{"alias_kind":"arxiv_version","alias_value":"1012.0953v1","created_at":"2026-05-18T02:23:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0953","created_at":"2026-05-18T02:23:15Z"},{"alias_kind":"pith_short_12","alias_value":"KVBLRKHMNERU","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KVBLRKHMNERUIFQS","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KVBLRKHM","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:KVBLRKHMNERUIFQSC75BZDQATG","target":"record","payload":{"canonical_record":{"source":{"id":"1012.0953","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-12-04T22:24:39Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"91bda54edebcbaea1d208d687058a5f709cd4a636900199a4a731f2cc4478024","abstract_canon_sha256":"b4f4cb8db5af94bee902b02accee1189453082546724b2a1c8c47c12aa919f91"},"schema_version":"1.0"},"canonical_sha256":"5542b8a8ec692344161217fa1c8e00998a0b463f8a6eca18991eee747804fea3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:15.803253Z","signature_b64":"TMlQVVWc4f1qyOjif+4ca6+pp5EhlBzvRjixFvxbE+7JsGYzP59AHs9RgyJ/Eh3V88sVkAX4Ty/9w8B1PRetCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5542b8a8ec692344161217fa1c8e00998a0b463f8a6eca18991eee747804fea3","last_reissued_at":"2026-05-18T02:23:15.802660Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:15.802660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.0953","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":"2026-05-18T02:23:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XZ6P6tPbl8mX6ZIt+QnbMDMZQW8DeckvZ3/qyl1s61JrQXIcyICd/mRtWzHrnjURMmEvPlL5DHaDOcwg2EVVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:44:18.907214Z"},"content_sha256":"33703878a785df985b3fcf9ee96a85fa74db64065b5ba4f8a4ccd9407c75a45d","schema_version":"1.0","event_id":"sha256:33703878a785df985b3fcf9ee96a85fa74db64065b5ba4f8a4ccd9407c75a45d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:KVBLRKHMNERUIFQSC75BZDQATG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"f(G) modified gravity and the energy conditions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Francisco S. N. Lobo, Jos\\'e P. Mimoso, Nadiezhda Montelongo Garc\\'ia, Tiberiu Harko","submitted_at":"2010-12-04T22:24:39Z","abstract_excerpt":"Motivated by string/M-theory predictions that scalar field couplings with the Gauss-Bonnet invariant, G, are essential in the appearance of non-singular early time cosmologies, we discuss the viability of an interesting alternative gravitational theory, namely, modified Gauss-Bonnet gravity, and present the viability bounds arising from the energy conditions. In particular, we consider a specific realistic form of f(G) analyzed in the literature that accounts for the late-time cosmic acceleration and that has been found to cure the finite-time future singularities present in the dark energy mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0953","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":"2026-05-18T02:23:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ubs3A66uV1F0xVqVrKAR+k7WzWQrqgLaxNIqH7OsNXojZTw8DnoCS4/VRbbMCXv6fATGaCrJvuKQUv87RJgmCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:44:18.907576Z"},"content_sha256":"cf576fcfc7ace393443ecf7e8dd15a956940c13737d7ede2068ac61c9cd5f1a8","schema_version":"1.0","event_id":"sha256:cf576fcfc7ace393443ecf7e8dd15a956940c13737d7ede2068ac61c9cd5f1a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KVBLRKHMNERUIFQSC75BZDQATG/bundle.json","state_url":"https://pith.science/pith/KVBLRKHMNERUIFQSC75BZDQATG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KVBLRKHMNERUIFQSC75BZDQATG/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":"2026-06-02T15:44:18Z","links":{"resolver":"https://pith.science/pith/KVBLRKHMNERUIFQSC75BZDQATG","bundle":"https://pith.science/pith/KVBLRKHMNERUIFQSC75BZDQATG/bundle.json","state":"https://pith.science/pith/KVBLRKHMNERUIFQSC75BZDQATG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KVBLRKHMNERUIFQSC75BZDQATG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:KVBLRKHMNERUIFQSC75BZDQATG","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":"b4f4cb8db5af94bee902b02accee1189453082546724b2a1c8c47c12aa919f91","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-12-04T22:24:39Z","title_canon_sha256":"91bda54edebcbaea1d208d687058a5f709cd4a636900199a4a731f2cc4478024"},"schema_version":"1.0","source":{"id":"1012.0953","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.0953","created_at":"2026-05-18T02:23:15Z"},{"alias_kind":"arxiv_version","alias_value":"1012.0953v1","created_at":"2026-05-18T02:23:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.0953","created_at":"2026-05-18T02:23:15Z"},{"alias_kind":"pith_short_12","alias_value":"KVBLRKHMNERU","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KVBLRKHMNERUIFQS","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KVBLRKHM","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:cf576fcfc7ace393443ecf7e8dd15a956940c13737d7ede2068ac61c9cd5f1a8","target":"graph","created_at":"2026-05-18T02:23:15Z","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":"Motivated by string/M-theory predictions that scalar field couplings with the Gauss-Bonnet invariant, G, are essential in the appearance of non-singular early time cosmologies, we discuss the viability of an interesting alternative gravitational theory, namely, modified Gauss-Bonnet gravity, and present the viability bounds arising from the energy conditions. In particular, we consider a specific realistic form of f(G) analyzed in the literature that accounts for the late-time cosmic acceleration and that has been found to cure the finite-time future singularities present in the dark energy mo","authors_text":"Francisco S. N. Lobo, Jos\\'e P. Mimoso, Nadiezhda Montelongo Garc\\'ia, Tiberiu Harko","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-12-04T22:24:39Z","title":"f(G) modified gravity and the energy conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.0953","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":"sha256:33703878a785df985b3fcf9ee96a85fa74db64065b5ba4f8a4ccd9407c75a45d","target":"record","created_at":"2026-05-18T02:23:15Z","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":"b4f4cb8db5af94bee902b02accee1189453082546724b2a1c8c47c12aa919f91","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2010-12-04T22:24:39Z","title_canon_sha256":"91bda54edebcbaea1d208d687058a5f709cd4a636900199a4a731f2cc4478024"},"schema_version":"1.0","source":{"id":"1012.0953","kind":"arxiv","version":1}},"canonical_sha256":"5542b8a8ec692344161217fa1c8e00998a0b463f8a6eca18991eee747804fea3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5542b8a8ec692344161217fa1c8e00998a0b463f8a6eca18991eee747804fea3","first_computed_at":"2026-05-18T02:23:15.802660Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:15.802660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TMlQVVWc4f1qyOjif+4ca6+pp5EhlBzvRjixFvxbE+7JsGYzP59AHs9RgyJ/Eh3V88sVkAX4Ty/9w8B1PRetCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:15.803253Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.0953","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33703878a785df985b3fcf9ee96a85fa74db64065b5ba4f8a4ccd9407c75a45d","sha256:cf576fcfc7ace393443ecf7e8dd15a956940c13737d7ede2068ac61c9cd5f1a8"],"state_sha256":"429cd5fec78fb960a6f6ed9ec82d1a6ef178ad9c243b4ef7028af2d1a6a954fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JgIG0ykmz5BWdpHrIvrttiYXpIpp0do1NJ863DJ1pF+SHQDlLGNnjkuaJFFMkCTv/m1rt7BmegXj89PHlo8MDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:44:18.909676Z","bundle_sha256":"19ccee03bcf968e9c83262ad935829e912b50952d593ff0fbcff34d8ca9e57ed"}}