{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:MHQNM6SGM4W6SAWGFZ5B2WFFH6","short_pith_number":"pith:MHQNM6SG","canonical_record":{"source":{"id":"1301.5000","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-01-21T21:01:02Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"65a275cccb2aa530ffcd1c14b51531cbe07e84c698ed45b066f4fdbb60aa2339","abstract_canon_sha256":"7b3bbfe58f4f15093ec1388cf13a9812259f2eaaf8fa59ca9e28c617c2f83589"},"schema_version":"1.0"},"canonical_sha256":"61e0d67a46672de902c62e7a1d58a53f8b3e9a4a670104dccb438f107c301289","source":{"kind":"arxiv","id":"1301.5000","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5000","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5000v3","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5000","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"MHQNM6SGM4W6","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MHQNM6SGM4W6SAWG","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MHQNM6SG","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:MHQNM6SGM4W6SAWGFZ5B2WFFH6","target":"record","payload":{"canonical_record":{"source":{"id":"1301.5000","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-01-21T21:01:02Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"65a275cccb2aa530ffcd1c14b51531cbe07e84c698ed45b066f4fdbb60aa2339","abstract_canon_sha256":"7b3bbfe58f4f15093ec1388cf13a9812259f2eaaf8fa59ca9e28c617c2f83589"},"schema_version":"1.0"},"canonical_sha256":"61e0d67a46672de902c62e7a1d58a53f8b3e9a4a670104dccb438f107c301289","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:29:50.172877Z","signature_b64":"adOcRkmD7eyRC8elNdt/FL0em+ueDalFYzljFkkhoUif6n5lOaL9oRWkkRFOHqnLRu9buRXpMaKjZk6FnwS1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"61e0d67a46672de902c62e7a1d58a53f8b3e9a4a670104dccb438f107c301289","last_reissued_at":"2026-05-18T03:29:50.171366Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:29:50.171366Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.5000","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+pH30l33DAaq8fDmxDfan/VX+HE80SI/ZLEg5Fixx1JNYQpsI0N+AkiDE+3Da7WSGvBg5GqGX9pEYbk5MwCXAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T16:21:37.089268Z"},"content_sha256":"72514468f098b284f988c7a2b4c6a217fea0913b17ee4c179a1bf616e3db3b84","schema_version":"1.0","event_id":"sha256:72514468f098b284f988c7a2b4c6a217fea0913b17ee4c179a1bf616e3db3b84"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:MHQNM6SGM4W6SAWGFZ5B2WFFH6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the Sigma pi photoproduction line shapes near the Lambda(1405)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"nucl-ex","authors_text":"Kei Moriya, Reinhard Schumacher (CLAS Collaboration)","submitted_at":"2013-01-21T21:01:02Z","abstract_excerpt":"The reaction gamma + p -> K+ + Sigma + pi was used to determine the invariant mass distributions or \"line shapes\" of the Sigma+ pi-, Sigma- pi+ and Sigma0 pi0 final states, from threshold at 1328 MeV/c^2 through the mass range of the Lambda(1405) and the Lambda(1520). The measurements were made with the CLAS system at Jefferson Lab using tagged real photons, for center-of-mass energies 1.95 < W < 2.85 GeV. The three mass distributions differ strongly in the vicinity of the I=0 \\Lambda(1405), indicating the presence of substantial I=1 strength in the reaction. Background contributions to the da"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5000","kind":"arxiv","version":3},"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":"2026-05-18T03:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"72GdPZgi13beb3b2XydMvIdhDjclrIP+ZSn2R2MuVLVA/Qr0dLvAxS+t5M94r+7948sDR847EhpFSoEsm9/bDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T16:21:37.090023Z"},"content_sha256":"6a7fec33369b9656eee2c350eb9f6ae86328119bb9a201714375ee887774fd12","schema_version":"1.0","event_id":"sha256:6a7fec33369b9656eee2c350eb9f6ae86328119bb9a201714375ee887774fd12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6/bundle.json","state_url":"https://pith.science/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6/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":"2026-06-10T16:21:37Z","links":{"resolver":"https://pith.science/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6","bundle":"https://pith.science/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6/bundle.json","state":"https://pith.science/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MHQNM6SGM4W6SAWGFZ5B2WFFH6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MHQNM6SGM4W6SAWGFZ5B2WFFH6","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":"7b3bbfe58f4f15093ec1388cf13a9812259f2eaaf8fa59ca9e28c617c2f83589","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-01-21T21:01:02Z","title_canon_sha256":"65a275cccb2aa530ffcd1c14b51531cbe07e84c698ed45b066f4fdbb60aa2339"},"schema_version":"1.0","source":{"id":"1301.5000","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5000","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5000v3","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5000","created_at":"2026-05-18T03:29:50Z"},{"alias_kind":"pith_short_12","alias_value":"MHQNM6SGM4W6","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MHQNM6SGM4W6SAWG","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MHQNM6SG","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:6a7fec33369b9656eee2c350eb9f6ae86328119bb9a201714375ee887774fd12","target":"graph","created_at":"2026-05-18T03:29:50Z","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":"The reaction gamma + p -> K+ + Sigma + pi was used to determine the invariant mass distributions or \"line shapes\" of the Sigma+ pi-, Sigma- pi+ and Sigma0 pi0 final states, from threshold at 1328 MeV/c^2 through the mass range of the Lambda(1405) and the Lambda(1520). The measurements were made with the CLAS system at Jefferson Lab using tagged real photons, for center-of-mass energies 1.95 < W < 2.85 GeV. The three mass distributions differ strongly in the vicinity of the I=0 \\Lambda(1405), indicating the presence of substantial I=1 strength in the reaction. Background contributions to the da","authors_text":"Kei Moriya, Reinhard Schumacher (CLAS Collaboration)","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-01-21T21:01:02Z","title":"Measurement of the Sigma pi photoproduction line shapes near the Lambda(1405)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5000","kind":"arxiv","version":3},"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":"sha256:72514468f098b284f988c7a2b4c6a217fea0913b17ee4c179a1bf616e3db3b84","target":"record","created_at":"2026-05-18T03:29:50Z","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":"7b3bbfe58f4f15093ec1388cf13a9812259f2eaaf8fa59ca9e28c617c2f83589","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2013-01-21T21:01:02Z","title_canon_sha256":"65a275cccb2aa530ffcd1c14b51531cbe07e84c698ed45b066f4fdbb60aa2339"},"schema_version":"1.0","source":{"id":"1301.5000","kind":"arxiv","version":3}},"canonical_sha256":"61e0d67a46672de902c62e7a1d58a53f8b3e9a4a670104dccb438f107c301289","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"61e0d67a46672de902c62e7a1d58a53f8b3e9a4a670104dccb438f107c301289","first_computed_at":"2026-05-18T03:29:50.171366Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:50.171366Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"adOcRkmD7eyRC8elNdt/FL0em+ueDalFYzljFkkhoUif6n5lOaL9oRWkkRFOHqnLRu9buRXpMaKjZk6FnwS1AA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:50.172877Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5000","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72514468f098b284f988c7a2b4c6a217fea0913b17ee4c179a1bf616e3db3b84","sha256:6a7fec33369b9656eee2c350eb9f6ae86328119bb9a201714375ee887774fd12"],"state_sha256":"3bfc8ad1c6da1e713acd754c3ee17ef1cbb98e5f45b35faea8ab521e42c6d448"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pPJNrdl/HGJHk9cNl/WKe+NMLPay3SuSs0hi51Q83ovXZY4NtpLAuGRbXBty8KNeTKB+WAKqdxOYwZvFvBleBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T16:21:37.094482Z","bundle_sha256":"e36dd92d18b5aba9d88fe049d3e216a18e39698970742ef17202230ce94c3a5a"}}