{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:57EMLTEPRRNAATHQFF3NXT5DJQ","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":"d35eb7b66052ad8f7cb2e32d2968e46c576860f0c66ef54af5604071b71f2201","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-14T17:26:40Z","title_canon_sha256":"daf4a499cb590c5109cc31ed8f57b9a6ad87d6710c8df71542ea497334325511"},"schema_version":"1.0","source":{"id":"1709.04891","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04891","created_at":"2026-07-05T03:27:23Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04891v2","created_at":"2026-07-05T03:27:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04891","created_at":"2026-07-05T03:27:23Z"},{"alias_kind":"pith_short_12","alias_value":"57EMLTEPRRNA","created_at":"2026-07-05T03:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"57EMLTEPRRNAATHQ","created_at":"2026-07-05T03:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"57EMLTEP","created_at":"2026-07-05T03:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:75ed5b0592b03f81a85db5eb75812f1effb8d0efaa3798f0ff0f40e773d66a05","target":"graph","created_at":"2026-07-05T03:27:23Z","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/1709.04891/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce a formalism for describing four-dimensional scattering amplitudes for particles of any mass and spin. This naturally extends the familiar spinor-helicity formalism for massless particles to one where these variables carry an extra SU(2) little group index for massive particles, with the amplitudes for spin S particles transforming as symmetric rank 2S tensors. We systematically characterise all possible three particle amplitudes compatible with Poincare symmetry. Unitarity, in the form of consistent factorization, imposes algebraic conditions that can be used to construct all poss","authors_text":"Nima Arkani-Hamed, Tzu-Chen Huang, Yu-tin Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-14T17:26:40Z","title":"Scattering Amplitudes For All Masses and Spins"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04891","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:d1e108d44c3c5c072940be6ea6f5779f88749574223396d6573ad93ab5506fc0","target":"record","created_at":"2026-07-05T03:27:23Z","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":"d35eb7b66052ad8f7cb2e32d2968e46c576860f0c66ef54af5604071b71f2201","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2017-09-14T17:26:40Z","title_canon_sha256":"daf4a499cb590c5109cc31ed8f57b9a6ad87d6710c8df71542ea497334325511"},"schema_version":"1.0","source":{"id":"1709.04891","kind":"arxiv","version":2}},"canonical_sha256":"efc8c5cc8f8c5a004cf02976dbcfa34c1d5ba4e4fb0995e5776f7c8af73547dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efc8c5cc8f8c5a004cf02976dbcfa34c1d5ba4e4fb0995e5776f7c8af73547dd","first_computed_at":"2026-07-05T03:27:23.028960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:27:23.028960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1IcnxoOn6ERSL7u7n2SHc9zKX/bdIKJskxdASaXAh7JBGtMxwdOyvRBCT5irop2DQ5DntRkhDuq/XJkTW/PDCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:27:23.029474Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04891","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1e108d44c3c5c072940be6ea6f5779f88749574223396d6573ad93ab5506fc0","sha256:75ed5b0592b03f81a85db5eb75812f1effb8d0efaa3798f0ff0f40e773d66a05"],"state_sha256":"6a05aee8b2eb0490d96319b17ee69805c2887a84832ec6026b9f5341c4dbb65f"}