{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:U6HQ2UMIJ6D4VNRN3T7MX26TSM","short_pith_number":"pith:U6HQ2UMI","schema_version":"1.0","canonical_sha256":"a78f0d51884f87cab62ddcfecbebd39331496eef0c0eee9ea3c6c86a3a936a35","source":{"kind":"arxiv","id":"2105.04566","version":1},"attestation_state":"computed","paper":{"title":"Non-perturbative propagators in quantum gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Benjamin Knorr, Marc Schiffer","submitted_at":"2021-05-10T18:00:02Z","abstract_excerpt":"We employ non-perturbative renormalisation group methods to compute the full momentum dependence of propagators in quantum gravity in general dimensions. We disentangle all different graviton and Faddeev-Popov ghost modes and find qualitative differences in the momentum dependence of their propagators. This allows us to reconstruct the form factors quadratic in curvature from first principles, which enter physical observables like scattering cross sections. The results are qualitatively stable under variations of the gauge fixing choice."},"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":"2105.04566","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-05-10T18:00:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"e6c199e00064c85928f3027cbcbc6078cf0fe253b9fa7e6dc73e0f8f327a9df6","abstract_canon_sha256":"5493f7c9cb5dd0577541dbfa1947c952892a69f2c5e6839c7b8aace05490bb26"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:39:22.024902Z","signature_b64":"M2XFDH5HUfUeraVVp9DhpVTKdwD4TqThdBJfKe2GMM9w+2DdOIZe3rNLWcePxtDDc+W4WXw2MfBxl2qbHblpCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a78f0d51884f87cab62ddcfecbebd39331496eef0c0eee9ea3c6c86a3a936a35","last_reissued_at":"2026-07-05T02:39:22.024400Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:39:22.024400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Non-perturbative propagators in quantum gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Benjamin Knorr, Marc Schiffer","submitted_at":"2021-05-10T18:00:02Z","abstract_excerpt":"We employ non-perturbative renormalisation group methods to compute the full momentum dependence of propagators in quantum gravity in general dimensions. We disentangle all different graviton and Faddeev-Popov ghost modes and find qualitative differences in the momentum dependence of their propagators. This allows us to reconstruct the form factors quadratic in curvature from first principles, which enter physical observables like scattering cross sections. The results are qualitatively stable under variations of the gauge fixing choice."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.04566","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.04566/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2105.04566","created_at":"2026-07-05T02:39:22.024459+00:00"},{"alias_kind":"arxiv_version","alias_value":"2105.04566v1","created_at":"2026-07-05T02:39:22.024459+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.04566","created_at":"2026-07-05T02:39:22.024459+00:00"},{"alias_kind":"pith_short_12","alias_value":"U6HQ2UMIJ6D4","created_at":"2026-07-05T02:39:22.024459+00:00"},{"alias_kind":"pith_short_16","alias_value":"U6HQ2UMIJ6D4VNRN","created_at":"2026-07-05T02:39:22.024459+00:00"},{"alias_kind":"pith_short_8","alias_value":"U6HQ2UMI","created_at":"2026-07-05T02:39:22.024459+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.21522","citing_title":"Asymptotically safe quantum gravity and its phenomenology -- a review","ref_index":54,"is_internal_anchor":false},{"citing_arxiv_id":"2606.19321","citing_title":"Spectral Functions of Lorentzian Quantum Gravity","ref_index":57,"is_internal_anchor":false},{"citing_arxiv_id":"2606.18343","citing_title":"The pole truth: an analytical graviton propagator from Asymptotic Safety","ref_index":32,"is_internal_anchor":false},{"citing_arxiv_id":"2606.13098","citing_title":"The Graviton Propagator in Asymptotically Safe Gravity with Non-Local Form Factors","ref_index":55,"is_internal_anchor":false},{"citing_arxiv_id":"2605.29159","citing_title":"Asymptotically Safe Gravitational Form Factors from the Proper-Time Flow Equation","ref_index":58,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM","json":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM.json","graph_json":"https://pith.science/api/pith-number/U6HQ2UMIJ6D4VNRN3T7MX26TSM/graph.json","events_json":"https://pith.science/api/pith-number/U6HQ2UMIJ6D4VNRN3T7MX26TSM/events.json","paper":"https://pith.science/paper/U6HQ2UMI"},"agent_actions":{"view_html":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM","download_json":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM.json","view_paper":"https://pith.science/paper/U6HQ2UMI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2105.04566&json=true","fetch_graph":"https://pith.science/api/pith-number/U6HQ2UMIJ6D4VNRN3T7MX26TSM/graph.json","fetch_events":"https://pith.science/api/pith-number/U6HQ2UMIJ6D4VNRN3T7MX26TSM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM/action/storage_attestation","attest_author":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM/action/author_attestation","sign_citation":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM/action/citation_signature","submit_replication":"https://pith.science/pith/U6HQ2UMIJ6D4VNRN3T7MX26TSM/action/replication_record"}},"created_at":"2026-07-05T02:39:22.024459+00:00","updated_at":"2026-07-05T02:39:22.024459+00:00"}