{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:5KDVLM2IXVOAJXHNTGZCYBUYM2","short_pith_number":"pith:5KDVLM2I","canonical_record":{"source":{"id":"2303.08839","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2023-03-15T18:00:02Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"482a4bfb7ea78cd96f8e4edd7e08745b5c3db6f1d6cf7fe4e88b403680c6bb30","abstract_canon_sha256":"7db2debff059d9d374574264674e732a2b1262a7f1fb570f2b0283a275bc0a3d"},"schema_version":"1.0"},"canonical_sha256":"ea8755b348bd5c04dced99b22c06986699265faf433a34adf70c3abeccc6e4d1","source":{"kind":"arxiv","id":"2303.08839","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.08839","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"arxiv_version","alias_value":"2303.08839v1","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.08839","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"pith_short_12","alias_value":"5KDVLM2IXVOA","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"pith_short_16","alias_value":"5KDVLM2IXVOAJXHN","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"pith_short_8","alias_value":"5KDVLM2I","created_at":"2026-07-05T05:51:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:5KDVLM2IXVOAJXHNTGZCYBUYM2","target":"record","payload":{"canonical_record":{"source":{"id":"2303.08839","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2023-03-15T18:00:02Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"482a4bfb7ea78cd96f8e4edd7e08745b5c3db6f1d6cf7fe4e88b403680c6bb30","abstract_canon_sha256":"7db2debff059d9d374574264674e732a2b1262a7f1fb570f2b0283a275bc0a3d"},"schema_version":"1.0"},"canonical_sha256":"ea8755b348bd5c04dced99b22c06986699265faf433a34adf70c3abeccc6e4d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:51:46.069206Z","signature_b64":"vtfOpy6qeVxq3W2oZum5eFiW2hg9o98eNOnxFp6JINz5HaCJB3UuESB+7ZnoXoyKCFaQyQzjO8qWvJEfmijeDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea8755b348bd5c04dced99b22c06986699265faf433a34adf70c3abeccc6e4d1","last_reissued_at":"2026-07-05T05:51:46.068776Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:51:46.068776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.08839","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:51:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j78UcGejEccemq/SMusuwPLKu4eBdR8D9ngwR2ksXTZUIuBgeNvrrHUeUdfnH/Ij2DujGIZEA75yUywbgytECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T04:10:29.219453Z"},"content_sha256":"9768fed55f04c4fe1c29a4418c16c0b5bfada162cc86c60b07c33d3cc5ab56bf","schema_version":"1.0","event_id":"sha256:9768fed55f04c4fe1c29a4418c16c0b5bfada162cc86c60b07c33d3cc5ab56bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:5KDVLM2IXVOAJXHNTGZCYBUYM2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scattering amplitudes from dispersive iterations of unitarity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-th","authors_text":"Alexander Zhiboedov, Piotr Tourkine","submitted_at":"2023-03-15T18:00:02Z","abstract_excerpt":"We present and numerically implement a computational method to construct relativistic scattering amplitudes that obey analyticity, crossing, elastic and inelastic unitarity in three and four spacetime dimensions. The algorithm is based on the Mandelstam representation of the amplitude and iterations of unitarity. The input for the iterative procedure is given by the multi-particle double spectral density, the S-wave inelasticity, and the value of the amplitude at the crossing-symmetric point. The output, obtained at the fixed point of the iteration of unitarity, is a nonperturbative scattering"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.08839","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/2303.08839/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:51:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/qTvBeX8QZaXqAGnwI5E3PHU2Zz82iMrITikQ0d8SzENRspzUxmTkMKJlap/ALTKlL8KEu+YI6zpUp3Wfh34Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T04:10:29.219977Z"},"content_sha256":"ea1a2b2b2675b871c72e367323c2c01676b48245a37e32364d61b66d2b31ba6b","schema_version":"1.0","event_id":"sha256:ea1a2b2b2675b871c72e367323c2c01676b48245a37e32364d61b66d2b31ba6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2/bundle.json","state_url":"https://pith.science/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-08T04:10:29Z","links":{"resolver":"https://pith.science/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2","bundle":"https://pith.science/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2/bundle.json","state":"https://pith.science/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5KDVLM2IXVOAJXHNTGZCYBUYM2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:5KDVLM2IXVOAJXHNTGZCYBUYM2","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":"7db2debff059d9d374574264674e732a2b1262a7f1fb570f2b0283a275bc0a3d","cross_cats_sorted":["hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2023-03-15T18:00:02Z","title_canon_sha256":"482a4bfb7ea78cd96f8e4edd7e08745b5c3db6f1d6cf7fe4e88b403680c6bb30"},"schema_version":"1.0","source":{"id":"2303.08839","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.08839","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"arxiv_version","alias_value":"2303.08839v1","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.08839","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"pith_short_12","alias_value":"5KDVLM2IXVOA","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"pith_short_16","alias_value":"5KDVLM2IXVOAJXHN","created_at":"2026-07-05T05:51:46Z"},{"alias_kind":"pith_short_8","alias_value":"5KDVLM2I","created_at":"2026-07-05T05:51:46Z"}],"graph_snapshots":[{"event_id":"sha256:ea1a2b2b2675b871c72e367323c2c01676b48245a37e32364d61b66d2b31ba6b","target":"graph","created_at":"2026-07-05T05:51:46Z","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/2303.08839/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present and numerically implement a computational method to construct relativistic scattering amplitudes that obey analyticity, crossing, elastic and inelastic unitarity in three and four spacetime dimensions. The algorithm is based on the Mandelstam representation of the amplitude and iterations of unitarity. The input for the iterative procedure is given by the multi-particle double spectral density, the S-wave inelasticity, and the value of the amplitude at the crossing-symmetric point. The output, obtained at the fixed point of the iteration of unitarity, is a nonperturbative scattering","authors_text":"Alexander Zhiboedov, Piotr Tourkine","cross_cats":["hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2023-03-15T18:00:02Z","title":"Scattering amplitudes from dispersive iterations of unitarity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.08839","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":"sha256:9768fed55f04c4fe1c29a4418c16c0b5bfada162cc86c60b07c33d3cc5ab56bf","target":"record","created_at":"2026-07-05T05:51:46Z","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":"7db2debff059d9d374574264674e732a2b1262a7f1fb570f2b0283a275bc0a3d","cross_cats_sorted":["hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2023-03-15T18:00:02Z","title_canon_sha256":"482a4bfb7ea78cd96f8e4edd7e08745b5c3db6f1d6cf7fe4e88b403680c6bb30"},"schema_version":"1.0","source":{"id":"2303.08839","kind":"arxiv","version":1}},"canonical_sha256":"ea8755b348bd5c04dced99b22c06986699265faf433a34adf70c3abeccc6e4d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea8755b348bd5c04dced99b22c06986699265faf433a34adf70c3abeccc6e4d1","first_computed_at":"2026-07-05T05:51:46.068776Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:51:46.068776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vtfOpy6qeVxq3W2oZum5eFiW2hg9o98eNOnxFp6JINz5HaCJB3UuESB+7ZnoXoyKCFaQyQzjO8qWvJEfmijeDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:51:46.069206Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.08839","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9768fed55f04c4fe1c29a4418c16c0b5bfada162cc86c60b07c33d3cc5ab56bf","sha256:ea1a2b2b2675b871c72e367323c2c01676b48245a37e32364d61b66d2b31ba6b"],"state_sha256":"e96cfccf639069479ce0cc6bdb265a552b691b9830eeb9f618b794a517b4dd88"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gYSE+WOzDVkO88xMUac+1awkKPC7fhmbkKZ5E8IhLgKvm3/DFY89iZkZshI2YteIjAi1JAi8qWcKv4cwT+PtBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T04:10:29.226017Z","bundle_sha256":"15aa93d6c38382f56d962d5b9ebe1693c17eb69cf4f5ec6b35483e38bf746cdc"}}