{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:74Z6GQFWOWGF3YGGX3DAM5P3PX","short_pith_number":"pith:74Z6GQFW","schema_version":"1.0","canonical_sha256":"ff33e340b6758c5de0c6bec60675fb7df74683b0b11367042b56eeca895b613c","source":{"kind":"arxiv","id":"2606.28245","version":1},"attestation_state":"computed","paper":{"title":"Spinor-helicity formalism for continuous-spin particles","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Evgeny Skvortsov, Felipe Figueroa, Thomas Basile, Xavier Bekaert","submitted_at":"2026-06-26T16:32:14Z","abstract_excerpt":"We propose a new formulation of continuous-spin particles (CSP) with the help of a single two-component spinor to build asymptotic states. This formulation allows to write down amplitudes in a straightforward way, similar to the massless spinor-helicity approach. The helicity states naturally emerge upon decomposing into components of a fixed homogeneity degree. We show that CSP amplitudes can be understood as the infinite-spin limit of amplitudes of massive particles and, similarly to the scattering of black holes, a certain universal factor exponentiates. In analogy with the recent discovery"},"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":"2606.28245","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"hep-th","submitted_at":"2026-06-26T16:32:14Z","cross_cats_sorted":[],"title_canon_sha256":"e5ac60d44dd6727edb847599e2f9b898022bfa472a5c34271968632372cc4c72","abstract_canon_sha256":"f9f462470af8d6ba271e6978d409487294b3a4656399d79652259bfc02875333"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-29T01:15:10.293430Z","signature_b64":"pxcxlCbwB3+ibhgruwhPbOyh6o3Axl7QbK3bNENoKqAyRCPzJRU09i3Ne+7vwGChfmL3BP9aUJ+9KdmHmqh2Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ff33e340b6758c5de0c6bec60675fb7df74683b0b11367042b56eeca895b613c","last_reissued_at":"2026-06-29T01:15:10.293018Z","signature_status":"signed_v1","first_computed_at":"2026-06-29T01:15:10.293018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spinor-helicity formalism for continuous-spin particles","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Evgeny Skvortsov, Felipe Figueroa, Thomas Basile, Xavier Bekaert","submitted_at":"2026-06-26T16:32:14Z","abstract_excerpt":"We propose a new formulation of continuous-spin particles (CSP) with the help of a single two-component spinor to build asymptotic states. This formulation allows to write down amplitudes in a straightforward way, similar to the massless spinor-helicity approach. The helicity states naturally emerge upon decomposing into components of a fixed homogeneity degree. We show that CSP amplitudes can be understood as the infinite-spin limit of amplitudes of massive particles and, similarly to the scattering of black holes, a certain universal factor exponentiates. In analogy with the recent discovery"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.28245","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/2606.28245/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":"2606.28245","created_at":"2026-06-29T01:15:10.293081+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.28245v1","created_at":"2026-06-29T01:15:10.293081+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.28245","created_at":"2026-06-29T01:15:10.293081+00:00"},{"alias_kind":"pith_short_12","alias_value":"74Z6GQFWOWGF","created_at":"2026-06-29T01:15:10.293081+00:00"},{"alias_kind":"pith_short_16","alias_value":"74Z6GQFWOWGF3YGG","created_at":"2026-06-29T01:15:10.293081+00:00"},{"alias_kind":"pith_short_8","alias_value":"74Z6GQFW","created_at":"2026-06-29T01:15:10.293081+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX","json":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX.json","graph_json":"https://pith.science/api/pith-number/74Z6GQFWOWGF3YGGX3DAM5P3PX/graph.json","events_json":"https://pith.science/api/pith-number/74Z6GQFWOWGF3YGGX3DAM5P3PX/events.json","paper":"https://pith.science/paper/74Z6GQFW"},"agent_actions":{"view_html":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX","download_json":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX.json","view_paper":"https://pith.science/paper/74Z6GQFW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.28245&json=true","fetch_graph":"https://pith.science/api/pith-number/74Z6GQFWOWGF3YGGX3DAM5P3PX/graph.json","fetch_events":"https://pith.science/api/pith-number/74Z6GQFWOWGF3YGGX3DAM5P3PX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX/action/storage_attestation","attest_author":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX/action/author_attestation","sign_citation":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX/action/citation_signature","submit_replication":"https://pith.science/pith/74Z6GQFWOWGF3YGGX3DAM5P3PX/action/replication_record"}},"created_at":"2026-06-29T01:15:10.293081+00:00","updated_at":"2026-06-29T01:15:10.293081+00:00"}