{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:NOFDT7Y2TPX2MMQU2L7MDJZZL6","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":"d84d4a8c1a56e4862b4d02256aed28ce59a1ad42b936405abc9cfd16234e452e","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-08-12T06:27:46Z","title_canon_sha256":"82cc437c7e7202c76d5eb0eb8dca293086c6b811193d4fa4750a3d90878985dc"},"schema_version":"1.0","source":{"id":"2608.11703","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.11703","created_at":"2026-08-13T01:27:52Z"},{"alias_kind":"arxiv_version","alias_value":"2608.11703v1","created_at":"2026-08-13T01:27:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.11703","created_at":"2026-08-13T01:27:52Z"},{"alias_kind":"pith_short_12","alias_value":"NOFDT7Y2TPX2","created_at":"2026-08-13T01:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NOFDT7Y2TPX2MMQU","created_at":"2026-08-13T01:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NOFDT7Y2","created_at":"2026-08-13T01:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:99cd2d3695a637267ed303b66a3b0b8ad6f89ee8279c9a678996563e9c7f03d9","target":"graph","created_at":"2026-08-13T01:27:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2608.11703/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Can flat-space on-shell amplitudes determine the channel basis of a coupled black-hole perturbation problem? We address this question for electromagnetic and gravitational perturbations of a Reissner-Nordstr\\\"{o}m (RN) black-hole. We organize the minimally coupled photon-graviton tree amplitudes off a heavy charged source into a $2\\times 2$ channel-space matrix and perform a parity-resolved Jacob-Wick partial-wave projection. For every radiative multipole $\\ell \\geq 2$ and in both parity sectors, we show that the trace-free fixed-source partial-wave matrix is exactly proportional to the trace-","authors_text":"Kento Takahara, Teppei Kitahara","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-08-12T06:27:46Z","title":"On-Shell Amplitudes and Black-Hole Perturbations: Exact Reissner-Nordstr\\\"om Mixing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.11703","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":"sha256:476e6aac7dc97c0b2ee872679f3c90efc98b5caa6e22f9ad6d7ff1b77a9370e5","target":"record","created_at":"2026-08-13T01:27:52Z","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":"d84d4a8c1a56e4862b4d02256aed28ce59a1ad42b936405abc9cfd16234e452e","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-08-12T06:27:46Z","title_canon_sha256":"82cc437c7e7202c76d5eb0eb8dca293086c6b811193d4fa4750a3d90878985dc"},"schema_version":"1.0","source":{"id":"2608.11703","kind":"arxiv","version":1}},"canonical_sha256":"6b8a39ff1a9befa63214d2fec1a7395f923ebe68cd79f3ecef314c508d6ee450","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b8a39ff1a9befa63214d2fec1a7395f923ebe68cd79f3ecef314c508d6ee450","first_computed_at":"2026-08-13T01:27:52.913804Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-13T01:27:52.913804Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PNE9+EG3MCWEQS5WQG9uZRBbzBSAzcWLjShgZ/qnGrIXE6CReDNtu0vWCFr5sQ1ycpXy+9YfDjVWuX+5nIJTDw==","signature_status":"signed_v1","signed_at":"2026-08-13T01:27:52.915998Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.11703","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:476e6aac7dc97c0b2ee872679f3c90efc98b5caa6e22f9ad6d7ff1b77a9370e5","sha256:99cd2d3695a637267ed303b66a3b0b8ad6f89ee8279c9a678996563e9c7f03d9"],"state_sha256":"48335686da81eb455b6e2020b014414c90671990fd6fecad512a4f78d28a4c6a"}