{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2XV3SUSSOMLLBWNA532US2NHFZ","short_pith_number":"pith:2XV3SUSS","canonical_record":{"source":{"id":"1303.2936","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-12T16:11:03Z","cross_cats_sorted":[],"title_canon_sha256":"8ac975f10bf8008a4f020095dfe3dcdb5961d7d7e27f7316b45ec6f799e31983","abstract_canon_sha256":"d38a2acc46602b0da1009625164473e985986721b003ef49029385f0605474e7"},"schema_version":"1.0"},"canonical_sha256":"d5ebb952527316b0d9a0eef54969a72e501d1cdc05c1d6f11610134770f5832d","source":{"kind":"arxiv","id":"1303.2936","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2936","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2936v4","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2936","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"pith_short_12","alias_value":"2XV3SUSSOMLL","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2XV3SUSSOMLLBWNA","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2XV3SUSS","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2XV3SUSSOMLLBWNA532US2NHFZ","target":"record","payload":{"canonical_record":{"source":{"id":"1303.2936","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-12T16:11:03Z","cross_cats_sorted":[],"title_canon_sha256":"8ac975f10bf8008a4f020095dfe3dcdb5961d7d7e27f7316b45ec6f799e31983","abstract_canon_sha256":"d38a2acc46602b0da1009625164473e985986721b003ef49029385f0605474e7"},"schema_version":"1.0"},"canonical_sha256":"d5ebb952527316b0d9a0eef54969a72e501d1cdc05c1d6f11610134770f5832d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:41.260035Z","signature_b64":"lR8YsWROpefXzK0YMvIrI9BFZt4MH9WoFRWrvrQlQSj26lI0hTVE5ocpMNcT9OUcQ/0HLpP9f6wcaiuSpW75Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5ebb952527316b0d9a0eef54969a72e501d1cdc05c1d6f11610134770f5832d","last_reissued_at":"2026-05-18T03:24:41.259520Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:41.259520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.2936","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:24:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u/jojKS60bASzAI2T7bc/j4+NwkelGV7VMr2uY8mSNJnC6vNBjSTun7co7l822Kz30VkLSKfA1DNQW+hYng5AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T00:47:12.024296Z"},"content_sha256":"56c9bbfaf974e711b2208595d825427cfa0f12b2559028c16cb6660846d2940e","schema_version":"1.0","event_id":"sha256:56c9bbfaf974e711b2208595d825427cfa0f12b2559028c16cb6660846d2940e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2XV3SUSSOMLLBWNA532US2NHFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The incompleteness of complete pseudoscalar-meson photoproduction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"Jan Ryckebusch, Pieter Vancraeyveld, Tom Van Cuyck, Tom Vrancx","submitted_at":"2013-03-12T16:11:03Z","abstract_excerpt":"[Background] A complete set is a minimum set of observables which allows one to determine the underlying reaction amplitudes unambiguously. Pseudoscalar-meson photoproduction from the nucleon is characterized by four such amplitudes and complete sets involve single- and double-polarization observables.\n  [Purpose] Identify complete sets of observables, and study how measurements with finite error bars impact their potential to determine the reaction amplitudes unambiguously.\n  [Method] The authors provide arguments to employ the transversity representation in order to determine the amplitudes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2936","kind":"arxiv","version":4},"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":"2026-05-18T03:24:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qKCW4X+09ZHkdckJHj0ZMZXNwj1RJ0gZQ0r5Jzbx7yGqWi/vC2/8y0usz+K06yE/S8sscnzNYGnAMfLVeE2+Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T00:47:12.024660Z"},"content_sha256":"946fdec1598e0442a43c3bc363984c7177de7c1c085060fe8498a33e3ddadd15","schema_version":"1.0","event_id":"sha256:946fdec1598e0442a43c3bc363984c7177de7c1c085060fe8498a33e3ddadd15"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2XV3SUSSOMLLBWNA532US2NHFZ/bundle.json","state_url":"https://pith.science/pith/2XV3SUSSOMLLBWNA532US2NHFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2XV3SUSSOMLLBWNA532US2NHFZ/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":"2026-06-02T00:47:12Z","links":{"resolver":"https://pith.science/pith/2XV3SUSSOMLLBWNA532US2NHFZ","bundle":"https://pith.science/pith/2XV3SUSSOMLLBWNA532US2NHFZ/bundle.json","state":"https://pith.science/pith/2XV3SUSSOMLLBWNA532US2NHFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2XV3SUSSOMLLBWNA532US2NHFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2XV3SUSSOMLLBWNA532US2NHFZ","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":"d38a2acc46602b0da1009625164473e985986721b003ef49029385f0605474e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-12T16:11:03Z","title_canon_sha256":"8ac975f10bf8008a4f020095dfe3dcdb5961d7d7e27f7316b45ec6f799e31983"},"schema_version":"1.0","source":{"id":"1303.2936","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2936","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2936v4","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2936","created_at":"2026-05-18T03:24:41Z"},{"alias_kind":"pith_short_12","alias_value":"2XV3SUSSOMLL","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2XV3SUSSOMLLBWNA","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2XV3SUSS","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:946fdec1598e0442a43c3bc363984c7177de7c1c085060fe8498a33e3ddadd15","target":"graph","created_at":"2026-05-18T03:24:41Z","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":"[Background] A complete set is a minimum set of observables which allows one to determine the underlying reaction amplitudes unambiguously. Pseudoscalar-meson photoproduction from the nucleon is characterized by four such amplitudes and complete sets involve single- and double-polarization observables.\n  [Purpose] Identify complete sets of observables, and study how measurements with finite error bars impact their potential to determine the reaction amplitudes unambiguously.\n  [Method] The authors provide arguments to employ the transversity representation in order to determine the amplitudes ","authors_text":"Jan Ryckebusch, Pieter Vancraeyveld, Tom Van Cuyck, Tom Vrancx","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-12T16:11:03Z","title":"The incompleteness of complete pseudoscalar-meson photoproduction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2936","kind":"arxiv","version":4},"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":"sha256:56c9bbfaf974e711b2208595d825427cfa0f12b2559028c16cb6660846d2940e","target":"record","created_at":"2026-05-18T03:24:41Z","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":"d38a2acc46602b0da1009625164473e985986721b003ef49029385f0605474e7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-12T16:11:03Z","title_canon_sha256":"8ac975f10bf8008a4f020095dfe3dcdb5961d7d7e27f7316b45ec6f799e31983"},"schema_version":"1.0","source":{"id":"1303.2936","kind":"arxiv","version":4}},"canonical_sha256":"d5ebb952527316b0d9a0eef54969a72e501d1cdc05c1d6f11610134770f5832d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5ebb952527316b0d9a0eef54969a72e501d1cdc05c1d6f11610134770f5832d","first_computed_at":"2026-05-18T03:24:41.259520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:41.259520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lR8YsWROpefXzK0YMvIrI9BFZt4MH9WoFRWrvrQlQSj26lI0hTVE5ocpMNcT9OUcQ/0HLpP9f6wcaiuSpW75Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:41.260035Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.2936","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56c9bbfaf974e711b2208595d825427cfa0f12b2559028c16cb6660846d2940e","sha256:946fdec1598e0442a43c3bc363984c7177de7c1c085060fe8498a33e3ddadd15"],"state_sha256":"7101928be724a84972747f61d9de5ef01fa8348df446f9f687590ae32ac9c000"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XL4/mCCWqYtjExpHtnUCFMVlke5be8HzHFmUeEO9EjVPtji/g2VfQ7T8VdACUJr4KvQJKzl/RdQQchQSrFeGDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T00:47:12.026774Z","bundle_sha256":"d3f3684ba785c7b496bf05c6b2390a804066ed3ecb281fec13a976f42250a54c"}}