{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:K4Y6PCDLDY3GCRWGDREUY7EG4J","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":"6fc3d4c66fddb80dda9ce9f02b445be4605aadb488c8509e639c2b9a3c73850e","cross_cats_sorted":["hep-ph","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-30T17:09:56Z","title_canon_sha256":"d210a92883cb3cedc3a7bde73837f35d404be2da6cadc93ccf28058b44513e5d"},"schema_version":"1.0","source":{"id":"1904.13372","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13372","created_at":"2026-05-17T23:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13372v2","created_at":"2026-05-17T23:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13372","created_at":"2026-05-17T23:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"K4Y6PCDLDY3G","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"K4Y6PCDLDY3GCRWG","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"K4Y6PCDL","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:454635eef9629a8b8ea87475a35c8be3ccb85a93d6e8c8a9c1dab74fe7fffd0c","target":"graph","created_at":"2026-05-17T23:41:36Z","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 set of double-logarithmic (DL) contributions $(\\alpha \\, t \\ln^2 {s})^n$ to the 4-graviton amplitude in ${\\cal N}$$=$ 8 supergravity (SUGRA), with $\\alpha$ being the gravitational coupling and $(s,t)$ the Mandelstam invariants, is studied in impact parameter ($\\rho$) representation. This sector of the amplitude shows interesting properties which shed light on the nature of quantum corrections in gravity. Besides having a convergent behaviour as $s$ increases, which is not present in ${\\cal N}$$<$ 4 SUGRA theories, there exists a critical line $\\rho_c(s)$ above which the Born amplitude prev","authors_text":"Agust\\'in Sabio Vera","cross_cats":["hep-ph","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-30T17:09:56Z","title":"Double-logarithms in N=8 supergravity: impact parameter description and mapping to 1-rooted ribbon graphs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13372","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":"sha256:4bdba111bcf011f02e7ba7b2b6950bcca4706790bc9a35c5eb43c365925c30af","target":"record","created_at":"2026-05-17T23:41:36Z","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":"6fc3d4c66fddb80dda9ce9f02b445be4605aadb488c8509e639c2b9a3c73850e","cross_cats_sorted":["hep-ph","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-04-30T17:09:56Z","title_canon_sha256":"d210a92883cb3cedc3a7bde73837f35d404be2da6cadc93ccf28058b44513e5d"},"schema_version":"1.0","source":{"id":"1904.13372","kind":"arxiv","version":2}},"canonical_sha256":"5731e7886b1e366146c61c494c7c86e27ffee1655b60f9fb42f9a6699296c81c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5731e7886b1e366146c61c494c7c86e27ffee1655b60f9fb42f9a6699296c81c","first_computed_at":"2026-05-17T23:41:36.339142Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:36.339142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eX9SN+P67HJcyedtggQnjohS1gHGp39sOZm3fWDPm2hh7bguj+WY7SC6rA2YCJ8eVe5aBugLL6CW4z7LVD4JDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:36.339680Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.13372","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4bdba111bcf011f02e7ba7b2b6950bcca4706790bc9a35c5eb43c365925c30af","sha256:454635eef9629a8b8ea87475a35c8be3ccb85a93d6e8c8a9c1dab74fe7fffd0c"],"state_sha256":"6253e07d75943d256580505e5e89c085ce11b49ab4b630456c23aabdfac929ce"}