{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:7WBMXIMJS7VOKMOQZWJQVRFFKE","short_pith_number":"pith:7WBMXIMJ","canonical_record":{"source":{"id":"1301.2686","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-01-12T13:31:20Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"52af842d56c994909b08db4dce0ff74636e783dd8f584d1e48c192e8d93888a4","abstract_canon_sha256":"287b0022016f0d40a6e3e882f51ce20cb7edc181d3da2a74abe5cbbca69fff5d"},"schema_version":"1.0"},"canonical_sha256":"fd82cba18997eae531d0cd930ac4a5511e7f3ae00edbcc02aa01b98a4b989cee","source":{"kind":"arxiv","id":"1301.2686","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.2686","created_at":"2026-05-18T03:16:49Z"},{"alias_kind":"arxiv_version","alias_value":"1301.2686v2","created_at":"2026-05-18T03:16:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.2686","created_at":"2026-05-18T03:16:49Z"},{"alias_kind":"pith_short_12","alias_value":"7WBMXIMJS7VO","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"7WBMXIMJS7VOKMOQ","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"7WBMXIMJ","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:7WBMXIMJS7VOKMOQZWJQVRFFKE","target":"record","payload":{"canonical_record":{"source":{"id":"1301.2686","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-01-12T13:31:20Z","cross_cats_sorted":["astro-ph.CO","gr-qc"],"title_canon_sha256":"52af842d56c994909b08db4dce0ff74636e783dd8f584d1e48c192e8d93888a4","abstract_canon_sha256":"287b0022016f0d40a6e3e882f51ce20cb7edc181d3da2a74abe5cbbca69fff5d"},"schema_version":"1.0"},"canonical_sha256":"fd82cba18997eae531d0cd930ac4a5511e7f3ae00edbcc02aa01b98a4b989cee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:49.504363Z","signature_b64":"j1Zv7MAknTYAAE3hC324BIvAf0RHAOoHdbQ+3AdYK4v+Y5to9sA3Deu4oiGr0iB5f81AbR6BgbnboaBCRUIvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd82cba18997eae531d0cd930ac4a5511e7f3ae00edbcc02aa01b98a4b989cee","last_reissued_at":"2026-05-18T03:16:49.503765Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:49.503765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.2686","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":"2026-05-18T03:16:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T+gBk57HyoTyaY+kqcM3uzAZdjnXw44+UUeOTNzOM0k2hrTTqkVHyglh+T0zNUSgYXOwawIbI/bfcuGFfcx1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:56:17.648197Z"},"content_sha256":"c60814c74719358432e2c0b586118ca6036df628e166093a6ea51ecf047d4448","schema_version":"1.0","event_id":"sha256:c60814c74719358432e2c0b586118ca6036df628e166093a6ea51ecf047d4448"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:7WBMXIMJS7VOKMOQZWJQVRFFKE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phantom without ghost","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc"],"primary_cat":"hep-th","authors_text":"Emmanuel N. Saridakis, Shin'ichi Nojiri","submitted_at":"2013-01-12T13:31:20Z","abstract_excerpt":"The Nine-Year WMAP results combined with other cosmological data seem to indicate an enhanced favor for the phantom regime, comparing to previous analyses. This behavior, unless reversed by future observational data, suggests to consider the phantom regime more thoroughly. In this work we provide three modified gravitational scenarios in which we obtain the phantom realization without the appearance of ghosts degrees of freedom, which plague the naive approaches on the subject, namely the Brans-Dicke type gravity, the scalar-Einstein-Gauss-Bonnet gravity, and the $F(R)$ gravity, which are more"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.2686","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":"2026-05-18T03:16:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YufmzSbXrmLDWeR0IC29zfi2YGB+JEomNSKrcGe2cngkq2a2cqTldjw+4TaiYxiGJ3Dgzy/F3PUvuc4V4/PpAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:56:17.648559Z"},"content_sha256":"8b5ab516e5b187c979c4bbbd99f384749524ad4275adf9bddc0c0a39cba83115","schema_version":"1.0","event_id":"sha256:8b5ab516e5b187c979c4bbbd99f384749524ad4275adf9bddc0c0a39cba83115"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE/bundle.json","state_url":"https://pith.science/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE/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":"2026-05-30T09:56:17Z","links":{"resolver":"https://pith.science/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE","bundle":"https://pith.science/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE/bundle.json","state":"https://pith.science/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7WBMXIMJS7VOKMOQZWJQVRFFKE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:7WBMXIMJS7VOKMOQZWJQVRFFKE","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":"287b0022016f0d40a6e3e882f51ce20cb7edc181d3da2a74abe5cbbca69fff5d","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-01-12T13:31:20Z","title_canon_sha256":"52af842d56c994909b08db4dce0ff74636e783dd8f584d1e48c192e8d93888a4"},"schema_version":"1.0","source":{"id":"1301.2686","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.2686","created_at":"2026-05-18T03:16:49Z"},{"alias_kind":"arxiv_version","alias_value":"1301.2686v2","created_at":"2026-05-18T03:16:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.2686","created_at":"2026-05-18T03:16:49Z"},{"alias_kind":"pith_short_12","alias_value":"7WBMXIMJS7VO","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"7WBMXIMJS7VOKMOQ","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"7WBMXIMJ","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:8b5ab516e5b187c979c4bbbd99f384749524ad4275adf9bddc0c0a39cba83115","target":"graph","created_at":"2026-05-18T03:16:49Z","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":"The Nine-Year WMAP results combined with other cosmological data seem to indicate an enhanced favor for the phantom regime, comparing to previous analyses. This behavior, unless reversed by future observational data, suggests to consider the phantom regime more thoroughly. In this work we provide three modified gravitational scenarios in which we obtain the phantom realization without the appearance of ghosts degrees of freedom, which plague the naive approaches on the subject, namely the Brans-Dicke type gravity, the scalar-Einstein-Gauss-Bonnet gravity, and the $F(R)$ gravity, which are more","authors_text":"Emmanuel N. Saridakis, Shin'ichi Nojiri","cross_cats":["astro-ph.CO","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-01-12T13:31:20Z","title":"Phantom without ghost"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.2686","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:c60814c74719358432e2c0b586118ca6036df628e166093a6ea51ecf047d4448","target":"record","created_at":"2026-05-18T03:16:49Z","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":"287b0022016f0d40a6e3e882f51ce20cb7edc181d3da2a74abe5cbbca69fff5d","cross_cats_sorted":["astro-ph.CO","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-01-12T13:31:20Z","title_canon_sha256":"52af842d56c994909b08db4dce0ff74636e783dd8f584d1e48c192e8d93888a4"},"schema_version":"1.0","source":{"id":"1301.2686","kind":"arxiv","version":2}},"canonical_sha256":"fd82cba18997eae531d0cd930ac4a5511e7f3ae00edbcc02aa01b98a4b989cee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd82cba18997eae531d0cd930ac4a5511e7f3ae00edbcc02aa01b98a4b989cee","first_computed_at":"2026-05-18T03:16:49.503765Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:49.503765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j1Zv7MAknTYAAE3hC324BIvAf0RHAOoHdbQ+3AdYK4v+Y5to9sA3Deu4oiGr0iB5f81AbR6BgbnboaBCRUIvCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:49.504363Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.2686","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c60814c74719358432e2c0b586118ca6036df628e166093a6ea51ecf047d4448","sha256:8b5ab516e5b187c979c4bbbd99f384749524ad4275adf9bddc0c0a39cba83115"],"state_sha256":"23da8abd85e7c7ef526a03d2419860c65f818e9a46088938b57699824ea9287f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aEeL9rg8LvSFSQgzknooY4kegAOtAeLarabN/MOkxc4j4GJZW5jpVuCLJ7DeLp2lhfTsEoLKSyjuRAYCs2wsCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:56:17.650507Z","bundle_sha256":"4741b3d55fb5ceabfb14c7f1d03210293df480e0cc390b7efec7cc3a63776f03"}}