{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:YS5UX7NIPBZ6SCMVIG4EUSQY6A","short_pith_number":"pith:YS5UX7NI","canonical_record":{"source":{"id":"1306.5126","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T13:18:47Z","cross_cats_sorted":[],"title_canon_sha256":"42d56f0de5be9d022049aae6d38c55844e1bdcbf04fc219d114243ce10e7bc67","abstract_canon_sha256":"ff416f5189255cdfe97623c8a1879cdb8ca6f950c66f6cec40fbdcdbca400fcc"},"schema_version":"1.0"},"canonical_sha256":"c4bb4bfda87873e9099541b84a4a18f020d535984c2b26d76c0b6ab4f704322f","source":{"kind":"arxiv","id":"1306.5126","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5126","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5126v2","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5126","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"YS5UX7NIPBZ6","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"YS5UX7NIPBZ6SCMV","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"YS5UX7NI","created_at":"2026-05-18T12:28:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:YS5UX7NIPBZ6SCMVIG4EUSQY6A","target":"record","payload":{"canonical_record":{"source":{"id":"1306.5126","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T13:18:47Z","cross_cats_sorted":[],"title_canon_sha256":"42d56f0de5be9d022049aae6d38c55844e1bdcbf04fc219d114243ce10e7bc67","abstract_canon_sha256":"ff416f5189255cdfe97623c8a1879cdb8ca6f950c66f6cec40fbdcdbca400fcc"},"schema_version":"1.0"},"canonical_sha256":"c4bb4bfda87873e9099541b84a4a18f020d535984c2b26d76c0b6ab4f704322f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:14.029642Z","signature_b64":"aVeUsrxHarzpxnSpM0g2TbufbE+tR7HWrLDl1FJ08x3prRqS30LDxr9529yfT7J47+Q+9CVYrQtIhx7wmTWWDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4bb4bfda87873e9099541b84a4a18f020d535984c2b26d76c0b6ab4f704322f","last_reissued_at":"2026-05-18T01:49:14.029135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:14.029135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.5126","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dh5WXyBQsYHjmiLTPyB4vudKSwxs0JdSJNVqt3eYNii+OoRV/LoO8DvBS3bOTzNr1Cd+5Q6wCCQM7LDx5qM7Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:22:02.434728Z"},"content_sha256":"19076284fce7a8f6a90f7fefeab4506a2b4886a6fbaa830d8648ebe343b210e2","schema_version":"1.0","event_id":"sha256:19076284fce7a8f6a90f7fefeab4506a2b4886a6fbaa830d8648ebe343b210e2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:YS5UX7NIPBZ6SCMVIG4EUSQY6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Study of ambiguities in $\\pi^-p\\to \\Lambda K^0$ scattering amplitudes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A.V. Anisovich, A.V. Sarantsev, E. Klempt, R. Beck, U. Thoma, V.A. Nikonov, Y. Wunderlich","submitted_at":"2013-06-21T13:18:47Z","abstract_excerpt":"Amplitudes for the reaction $\\pi^-p\\to \\Lambda K^0$ are reconstructed from data on the differential cross section $d\\sigma/d\\Omega$, the recoil polarization $P$, and on the spin rotation parameter $\\beta$. At low energies, no data on $\\beta$ exist, resulting in ambiguities. An approximation using $S$ and $P$ waves leads only to a fair description of the data on $d\\sigma/d\\Omega$ and $P$; in this case, there are two sets of amplitudes. Including $D$ waves, the data on $d\\sigma/d\\Omega$ and $P$ are well reproduced by the fit but now, there are several distinct solutions which describe the data w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5126","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/RsLNBJ29zDdymrtAV4cwH//N4tbBfJEemOTm3yTYInXXbuU56sZi1qMm+PYzwDjDSuKvK8R0ebcP96e/9ctBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:22:02.435358Z"},"content_sha256":"7efc8f51f86ce9de303fef402095b01d590ab8ba8b6d14c0fe4dd38e49533dee","schema_version":"1.0","event_id":"sha256:7efc8f51f86ce9de303fef402095b01d590ab8ba8b6d14c0fe4dd38e49533dee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A/bundle.json","state_url":"https://pith.science/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A/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":"2026-05-26T02:22:02Z","links":{"resolver":"https://pith.science/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A","bundle":"https://pith.science/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A/bundle.json","state":"https://pith.science/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YS5UX7NIPBZ6SCMVIG4EUSQY6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YS5UX7NIPBZ6SCMVIG4EUSQY6A","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":"ff416f5189255cdfe97623c8a1879cdb8ca6f950c66f6cec40fbdcdbca400fcc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T13:18:47Z","title_canon_sha256":"42d56f0de5be9d022049aae6d38c55844e1bdcbf04fc219d114243ce10e7bc67"},"schema_version":"1.0","source":{"id":"1306.5126","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5126","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5126v2","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5126","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"YS5UX7NIPBZ6","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"YS5UX7NIPBZ6SCMV","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"YS5UX7NI","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:7efc8f51f86ce9de303fef402095b01d590ab8ba8b6d14c0fe4dd38e49533dee","target":"graph","created_at":"2026-05-18T01:49:14Z","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":"Amplitudes for the reaction $\\pi^-p\\to \\Lambda K^0$ are reconstructed from data on the differential cross section $d\\sigma/d\\Omega$, the recoil polarization $P$, and on the spin rotation parameter $\\beta$. At low energies, no data on $\\beta$ exist, resulting in ambiguities. An approximation using $S$ and $P$ waves leads only to a fair description of the data on $d\\sigma/d\\Omega$ and $P$; in this case, there are two sets of amplitudes. Including $D$ waves, the data on $d\\sigma/d\\Omega$ and $P$ are well reproduced by the fit but now, there are several distinct solutions which describe the data w","authors_text":"A.V. Anisovich, A.V. Sarantsev, E. Klempt, R. Beck, U. Thoma, V.A. Nikonov, Y. Wunderlich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T13:18:47Z","title":"Study of ambiguities in $\\pi^-p\\to \\Lambda K^0$ scattering amplitudes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5126","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":"sha256:19076284fce7a8f6a90f7fefeab4506a2b4886a6fbaa830d8648ebe343b210e2","target":"record","created_at":"2026-05-18T01:49:14Z","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":"ff416f5189255cdfe97623c8a1879cdb8ca6f950c66f6cec40fbdcdbca400fcc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-06-21T13:18:47Z","title_canon_sha256":"42d56f0de5be9d022049aae6d38c55844e1bdcbf04fc219d114243ce10e7bc67"},"schema_version":"1.0","source":{"id":"1306.5126","kind":"arxiv","version":2}},"canonical_sha256":"c4bb4bfda87873e9099541b84a4a18f020d535984c2b26d76c0b6ab4f704322f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4bb4bfda87873e9099541b84a4a18f020d535984c2b26d76c0b6ab4f704322f","first_computed_at":"2026-05-18T01:49:14.029135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:14.029135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aVeUsrxHarzpxnSpM0g2TbufbE+tR7HWrLDl1FJ08x3prRqS30LDxr9529yfT7J47+Q+9CVYrQtIhx7wmTWWDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:14.029642Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.5126","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19076284fce7a8f6a90f7fefeab4506a2b4886a6fbaa830d8648ebe343b210e2","sha256:7efc8f51f86ce9de303fef402095b01d590ab8ba8b6d14c0fe4dd38e49533dee"],"state_sha256":"036b58bbc2ddcbf3a6d588158c4362e72cbaeab0e3e46a6356e966b4cf0ccf0b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mP+/d4ZeW0cAJMMGoQyft2k3amxWDZs1IVpWeYn6feuVfvfVZhHEaEp2VWkEZNeb2MypZw1KsdIRikuWtjBsBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T02:22:02.438878Z","bundle_sha256":"9464779d0531dddcaad34318a8dbc4dfcf1dc03f05353a8214b04208be313a25"}}