{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:CAHE5NGDB46TAQABTC6LZLBE5B","short_pith_number":"pith:CAHE5NGD","canonical_record":{"source":{"id":"1003.2363","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-03-11T17:11:07Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"2c2b1519b119f1de92e20482b17580de2d478ee4266efd32bc2a715b7721aea5","abstract_canon_sha256":"66ca059fc5d402a45c6c51ed8ba1ce9c99bfae7c1585f061a88868dbe7e27da1"},"schema_version":"1.0"},"canonical_sha256":"100e4eb4c30f3d30400198bcbcac24e860fea1788628040c19f3d9206a1b4e87","source":{"kind":"arxiv","id":"1003.2363","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.2363","created_at":"2026-05-18T04:34:00Z"},{"alias_kind":"arxiv_version","alias_value":"1003.2363v1","created_at":"2026-05-18T04:34:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.2363","created_at":"2026-05-18T04:34:00Z"},{"alias_kind":"pith_short_12","alias_value":"CAHE5NGDB46T","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"CAHE5NGDB46TAQAB","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"CAHE5NGD","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:CAHE5NGDB46TAQABTC6LZLBE5B","target":"record","payload":{"canonical_record":{"source":{"id":"1003.2363","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-03-11T17:11:07Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"2c2b1519b119f1de92e20482b17580de2d478ee4266efd32bc2a715b7721aea5","abstract_canon_sha256":"66ca059fc5d402a45c6c51ed8ba1ce9c99bfae7c1585f061a88868dbe7e27da1"},"schema_version":"1.0"},"canonical_sha256":"100e4eb4c30f3d30400198bcbcac24e860fea1788628040c19f3d9206a1b4e87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:34:00.267291Z","signature_b64":"jQUIW11tNIqQw9iZY3fxagZ1PVG3vRcF1kSrKtRt3cAQrunb75nSLq4G3Ay9nn8Is9QDUWZqCimf4Zh39oS+Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"100e4eb4c30f3d30400198bcbcac24e860fea1788628040c19f3d9206a1b4e87","last_reissued_at":"2026-05-18T04:34:00.266828Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:34:00.266828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.2363","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":"2026-05-18T04:34:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcxZRbsPKO07qKGVwHKf51TMEY+HhLbZAYLe+63itL9HZz9tKcMSwBZHGPmsJHeEesLV/j1OAsGZ67PMNylVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T15:44:20.880030Z"},"content_sha256":"a7b4f76e7437fbcd44f78c8b21642f6a5875eb559e201e8216487ef5b0c5c924","schema_version":"1.0","event_id":"sha256:a7b4f76e7437fbcd44f78c8b21642f6a5875eb559e201e8216487ef5b0c5c924"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:CAHE5NGDB46TAQABTC6LZLBE5B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the background in the $\\gamma p \\to \\omega(\\pi^0\\gamma) p$ reaction and mixed event simulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"nucl-th","authors_text":"E. Hernandez (Salamanca U.), E. Oset (Valencia U. & Valencia U., Ific), M. Kaskulov (Giessen U.)","submitted_at":"2010-03-11T17:11:07Z","abstract_excerpt":"In this paper we evaluate sources of background for the $\\gamma p \\to \\omega p$, with the $\\omega$ detected through its $\\pi^0 \\gamma$ decay channel, to compare with the experiment carried out at ELSA. We find background from $\\gamma p \\to \\pi^0 \\pi^0 p$ followed by decay of a $\\pi^0$ into two $\\gamma$, recombining one $\\pi^0$ and one $\\gamma$, and from the $\\gamma p \\to \\pi^0 \\eta p$ reaction with subsequent decay of the $\\eta$ into two photons. This background accounts for the data at $\\pi^0 \\gamma$ invariant masses beyond 700 MeV, but strength is missing at lower invariant masses which was "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.2363","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":""},"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":"2026-05-18T04:34:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3fUz5blja0NvXtrzvnbDLDQweju8iyUvvEvQbnKFQNNsmEinhnMuF09HcFlWCx18oW7N0LNar/JTzuCX4NPIBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T15:44:20.880381Z"},"content_sha256":"a56c339ce0a036ee695b68dbe15a545bb9fa6e02a33e2b00ae15538c470604f1","schema_version":"1.0","event_id":"sha256:a56c339ce0a036ee695b68dbe15a545bb9fa6e02a33e2b00ae15538c470604f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CAHE5NGDB46TAQABTC6LZLBE5B/bundle.json","state_url":"https://pith.science/pith/CAHE5NGDB46TAQABTC6LZLBE5B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CAHE5NGDB46TAQABTC6LZLBE5B/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":"2026-06-28T15:44:20Z","links":{"resolver":"https://pith.science/pith/CAHE5NGDB46TAQABTC6LZLBE5B","bundle":"https://pith.science/pith/CAHE5NGDB46TAQABTC6LZLBE5B/bundle.json","state":"https://pith.science/pith/CAHE5NGDB46TAQABTC6LZLBE5B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CAHE5NGDB46TAQABTC6LZLBE5B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:CAHE5NGDB46TAQABTC6LZLBE5B","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":"66ca059fc5d402a45c6c51ed8ba1ce9c99bfae7c1585f061a88868dbe7e27da1","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-03-11T17:11:07Z","title_canon_sha256":"2c2b1519b119f1de92e20482b17580de2d478ee4266efd32bc2a715b7721aea5"},"schema_version":"1.0","source":{"id":"1003.2363","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.2363","created_at":"2026-05-18T04:34:00Z"},{"alias_kind":"arxiv_version","alias_value":"1003.2363v1","created_at":"2026-05-18T04:34:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.2363","created_at":"2026-05-18T04:34:00Z"},{"alias_kind":"pith_short_12","alias_value":"CAHE5NGDB46T","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"CAHE5NGDB46TAQAB","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"CAHE5NGD","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:a56c339ce0a036ee695b68dbe15a545bb9fa6e02a33e2b00ae15538c470604f1","target":"graph","created_at":"2026-05-18T04:34:00Z","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":"In this paper we evaluate sources of background for the $\\gamma p \\to \\omega p$, with the $\\omega$ detected through its $\\pi^0 \\gamma$ decay channel, to compare with the experiment carried out at ELSA. We find background from $\\gamma p \\to \\pi^0 \\pi^0 p$ followed by decay of a $\\pi^0$ into two $\\gamma$, recombining one $\\pi^0$ and one $\\gamma$, and from the $\\gamma p \\to \\pi^0 \\eta p$ reaction with subsequent decay of the $\\eta$ into two photons. This background accounts for the data at $\\pi^0 \\gamma$ invariant masses beyond 700 MeV, but strength is missing at lower invariant masses which was ","authors_text":"E. Hernandez (Salamanca U.), E. Oset (Valencia U. & Valencia U., Ific), M. Kaskulov (Giessen U.)","cross_cats":["nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-03-11T17:11:07Z","title":"On the background in the $\\gamma p \\to \\omega(\\pi^0\\gamma) p$ reaction and mixed event simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.2363","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:a7b4f76e7437fbcd44f78c8b21642f6a5875eb559e201e8216487ef5b0c5c924","target":"record","created_at":"2026-05-18T04:34:00Z","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":"66ca059fc5d402a45c6c51ed8ba1ce9c99bfae7c1585f061a88868dbe7e27da1","cross_cats_sorted":["nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-03-11T17:11:07Z","title_canon_sha256":"2c2b1519b119f1de92e20482b17580de2d478ee4266efd32bc2a715b7721aea5"},"schema_version":"1.0","source":{"id":"1003.2363","kind":"arxiv","version":1}},"canonical_sha256":"100e4eb4c30f3d30400198bcbcac24e860fea1788628040c19f3d9206a1b4e87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"100e4eb4c30f3d30400198bcbcac24e860fea1788628040c19f3d9206a1b4e87","first_computed_at":"2026-05-18T04:34:00.266828Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:34:00.266828Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jQUIW11tNIqQw9iZY3fxagZ1PVG3vRcF1kSrKtRt3cAQrunb75nSLq4G3Ay9nn8Is9QDUWZqCimf4Zh39oS+Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:34:00.267291Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.2363","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7b4f76e7437fbcd44f78c8b21642f6a5875eb559e201e8216487ef5b0c5c924","sha256:a56c339ce0a036ee695b68dbe15a545bb9fa6e02a33e2b00ae15538c470604f1"],"state_sha256":"e2fb2a9aa58053bf1278647bb6889a6395c75f26aba118ac3815b841cadfee6f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MRKnT2CF88AxBB0bvnq/2aCa/5hzOg1dYvJRQhCseTIyjzJaaG9Cu1Onp7gy/lGkPVjCg30G80qZVcTe1JvkBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T15:44:20.882186Z","bundle_sha256":"2e4548ec2b0928da0e5ccb411aa762e74669337e0d27c45da0badc8e43899f36"}}