{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:GDPQ62E7PYAKEMIUDEVVAYSQZE","short_pith_number":"pith:GDPQ62E7","schema_version":"1.0","canonical_sha256":"30df0f689f7e00a23114192b506250c912f508a04f55debdd3988132431e7a35","source":{"kind":"arxiv","id":"1803.06368","version":3},"attestation_state":"computed","paper":{"title":"Doppelg\\\"anger dark energy: modified gravity with non-universal couplings after GW170817","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Adalto R. Gomes, Dario Bettoni, Guillem Dom\\`enech, Luca Amendola","submitted_at":"2018-03-16T18:34:57Z","abstract_excerpt":"Gravitational Wave (GW) astronomy severely narrowed down the theoretical space for scalar-tensor theories. We propose a new class of attractor models for Horndeski action in which GWs propagate at the speed of light in the nearby universe but not in the past. To do so we derive new solutions to the interacting dark sector in which the ratio of dark energy and dark matter remains constant, which we refer to as doppelg\\\"anger dark energy (DDE). We then remove the interaction between dark matter and dark energy by a suitable change of variables. The accelerated expansion that (we) baryons observe"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1803.06368","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-03-16T18:34:57Z","cross_cats_sorted":[],"title_canon_sha256":"d57905efb13520decd0a1e495c83f9ebf34c58fae267f434561a578f06dd91c6","abstract_canon_sha256":"91b50d3f0d7a781f34353b5569b333b77949677a21d6799954a42dd3f867dedc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:57.845116Z","signature_b64":"3RKGLrfq6kfM8w4aM+p+41q3kyww3Mc7S6USG7vYk8XCem6cDjOHwkvr1qkLmIS9lf/XfySHsyvX7YsqfPkvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30df0f689f7e00a23114192b506250c912f508a04f55debdd3988132431e7a35","last_reissued_at":"2026-05-17T23:53:57.844595Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:57.844595Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Doppelg\\\"anger dark energy: modified gravity with non-universal couplings after GW170817","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Adalto R. Gomes, Dario Bettoni, Guillem Dom\\`enech, Luca Amendola","submitted_at":"2018-03-16T18:34:57Z","abstract_excerpt":"Gravitational Wave (GW) astronomy severely narrowed down the theoretical space for scalar-tensor theories. We propose a new class of attractor models for Horndeski action in which GWs propagate at the speed of light in the nearby universe but not in the past. To do so we derive new solutions to the interacting dark sector in which the ratio of dark energy and dark matter remains constant, which we refer to as doppelg\\\"anger dark energy (DDE). We then remove the interaction between dark matter and dark energy by a suitable change of variables. The accelerated expansion that (we) baryons observe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.06368","kind":"arxiv","version":3},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1803.06368","created_at":"2026-05-17T23:53:57.844671+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.06368v3","created_at":"2026-05-17T23:53:57.844671+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.06368","created_at":"2026-05-17T23:53:57.844671+00:00"},{"alias_kind":"pith_short_12","alias_value":"GDPQ62E7PYAK","created_at":"2026-05-18T12:32:25.280505+00:00"},{"alias_kind":"pith_short_16","alias_value":"GDPQ62E7PYAKEMIU","created_at":"2026-05-18T12:32:25.280505+00:00"},{"alias_kind":"pith_short_8","alias_value":"GDPQ62E7","created_at":"2026-05-18T12:32:25.280505+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.06043","citing_title":"Probing Gravity -- Fundamental Aspects of Metric Theories and their Implications for Tests of General Relativity","ref_index":164,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE","json":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE.json","graph_json":"https://pith.science/api/pith-number/GDPQ62E7PYAKEMIUDEVVAYSQZE/graph.json","events_json":"https://pith.science/api/pith-number/GDPQ62E7PYAKEMIUDEVVAYSQZE/events.json","paper":"https://pith.science/paper/GDPQ62E7"},"agent_actions":{"view_html":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE","download_json":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE.json","view_paper":"https://pith.science/paper/GDPQ62E7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.06368&json=true","fetch_graph":"https://pith.science/api/pith-number/GDPQ62E7PYAKEMIUDEVVAYSQZE/graph.json","fetch_events":"https://pith.science/api/pith-number/GDPQ62E7PYAKEMIUDEVVAYSQZE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE/action/storage_attestation","attest_author":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE/action/author_attestation","sign_citation":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE/action/citation_signature","submit_replication":"https://pith.science/pith/GDPQ62E7PYAKEMIUDEVVAYSQZE/action/replication_record"}},"created_at":"2026-05-17T23:53:57.844671+00:00","updated_at":"2026-05-17T23:53:57.844671+00:00"}