{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:6LKPK23MUIO64XJUOD2JPJZ6UZ","short_pith_number":"pith:6LKPK23M","schema_version":"1.0","canonical_sha256":"f2d4f56b6ca21dee5d3470f497a73ea647fdb0ff85c3443d063c811ada513156","source":{"kind":"arxiv","id":"1812.08782","version":2},"attestation_state":"computed","paper":{"title":"Zooming in on fermions and quantum gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Astrid Eichhorn, Marc Schiffer, Stefan Lippoldt","submitted_at":"2018-12-20T18:57:32Z","abstract_excerpt":"We zoom in on the microscopic dynamics for fermions and quantum gravity within the asymptotic-safety paradigm. A key finding of our study is the unavoidable presence of a nonminimal derivative coupling between the curvature and fermion fields in the ultraviolet. Its backreaction on the properties of the Reuter fixed point remains small for finite fermion numbers within a bounded range. This constitutes a nontrivial test of the asymptotic-safety scenario for gravity and fermionic matter, additionally supplemented by our studies of the momentum-dependent vertex flow which indicate the subleading"},"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":"1812.08782","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-12-20T18:57:32Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"87af8ab3f849334eeee9ae2d05036b4646359f5317aa4927eb8638e773487e47","abstract_canon_sha256":"49f200938aec90c6121ab4c2b4d7d010ab52002c98e7d81e6ce1eb9f2ed2811d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:16.811200Z","signature_b64":"gCLKyWMtQNJenKkhPulzjpNEyFFTThVahxOtp99WVCqdI8K/MyeU6MkyhBUg4xjWgOrfpciplQ1+pvLZ1AI1Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2d4f56b6ca21dee5d3470f497a73ea647fdb0ff85c3443d063c811ada513156","last_reissued_at":"2026-05-17T23:48:16.810600Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:16.810600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Zooming in on fermions and quantum gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Astrid Eichhorn, Marc Schiffer, Stefan Lippoldt","submitted_at":"2018-12-20T18:57:32Z","abstract_excerpt":"We zoom in on the microscopic dynamics for fermions and quantum gravity within the asymptotic-safety paradigm. A key finding of our study is the unavoidable presence of a nonminimal derivative coupling between the curvature and fermion fields in the ultraviolet. Its backreaction on the properties of the Reuter fixed point remains small for finite fermion numbers within a bounded range. This constitutes a nontrivial test of the asymptotic-safety scenario for gravity and fermionic matter, additionally supplemented by our studies of the momentum-dependent vertex flow which indicate the subleading"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.08782","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1812.08782","created_at":"2026-05-17T23:48:16.810689+00:00"},{"alias_kind":"arxiv_version","alias_value":"1812.08782v2","created_at":"2026-05-17T23:48:16.810689+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.08782","created_at":"2026-05-17T23:48:16.810689+00:00"},{"alias_kind":"pith_short_12","alias_value":"6LKPK23MUIO6","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"6LKPK23MUIO64XJU","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"6LKPK23M","created_at":"2026-05-18T12:32:08.215937+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2510.23808","citing_title":"Towards theory constraints on ultralight dark matter from quantum gravity","ref_index":167,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ","json":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ.json","graph_json":"https://pith.science/api/pith-number/6LKPK23MUIO64XJUOD2JPJZ6UZ/graph.json","events_json":"https://pith.science/api/pith-number/6LKPK23MUIO64XJUOD2JPJZ6UZ/events.json","paper":"https://pith.science/paper/6LKPK23M"},"agent_actions":{"view_html":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ","download_json":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ.json","view_paper":"https://pith.science/paper/6LKPK23M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1812.08782&json=true","fetch_graph":"https://pith.science/api/pith-number/6LKPK23MUIO64XJUOD2JPJZ6UZ/graph.json","fetch_events":"https://pith.science/api/pith-number/6LKPK23MUIO64XJUOD2JPJZ6UZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ/action/storage_attestation","attest_author":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ/action/author_attestation","sign_citation":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ/action/citation_signature","submit_replication":"https://pith.science/pith/6LKPK23MUIO64XJUOD2JPJZ6UZ/action/replication_record"}},"created_at":"2026-05-17T23:48:16.810689+00:00","updated_at":"2026-05-17T23:48:16.810689+00:00"}