{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BK6GZCZICAULD3PSN47O5QJSPA","short_pith_number":"pith:BK6GZCZI","canonical_record":{"source":{"id":"2501.15153","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-01-25T09:34:17Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"0a300b9cb473ee79dae7102c027947377978c606de0fa89a1cea857cc12b85ca","abstract_canon_sha256":"27eb0f52df132c6496487ef5fa33ce18b7baa53eb78a41bc5c884dc9c237db18"},"schema_version":"1.0"},"canonical_sha256":"0abc6c8b281028b1edf26f3eeec132780d5a919112b1a5b9e6318189b962937e","source":{"kind":"arxiv","id":"2501.15153","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.15153","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2501.15153v1","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.15153","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"BK6GZCZICAUL","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"BK6GZCZICAULD3PS","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"BK6GZCZI","created_at":"2026-07-05T10:05:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BK6GZCZICAULD3PSN47O5QJSPA","target":"record","payload":{"canonical_record":{"source":{"id":"2501.15153","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-01-25T09:34:17Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"0a300b9cb473ee79dae7102c027947377978c606de0fa89a1cea857cc12b85ca","abstract_canon_sha256":"27eb0f52df132c6496487ef5fa33ce18b7baa53eb78a41bc5c884dc9c237db18"},"schema_version":"1.0"},"canonical_sha256":"0abc6c8b281028b1edf26f3eeec132780d5a919112b1a5b9e6318189b962937e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:05:25.086214Z","signature_b64":"LX1KoV6UiH/cPiMBhI5fCl5C3RwtCX2oNqmELnhmkywtDzrllPof7YzUxz7CK0p+Zao32AwFEhuCdi08zfXdCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0abc6c8b281028b1edf26f3eeec132780d5a919112b1a5b9e6318189b962937e","last_reissued_at":"2026-07-05T10:05:25.085764Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:05:25.085764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.15153","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":"2026-07-05T10:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"prx8ZXfbiUarQMng5DloFMv0rOBj7YCgMDdVUBDPhZ4+XyBUgmtNuH/eYb0NQEZmUJEkxJtTThcC0pTYVsjzCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:46:40.188935Z"},"content_sha256":"c34ed3e908087ba0b34c2d0e2bde1f288773e1f93f4e389cf4957cfe9c3cbf09","schema_version":"1.0","event_id":"sha256:c34ed3e908087ba0b34c2d0e2bde1f288773e1f93f4e389cf4957cfe9c3cbf09"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BK6GZCZICAULD3PSN47O5QJSPA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Roles of $\\Delta(1232)$, $N^*(1520)$, and $N^*(1650)$ resonances in $\\gamma p\\to \\pi^0 \\pi^0 p$ reaction within an effective Lagrangian approach","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Cheng Chen, De-Min Li, En Wang, Ju-Jun Xie, Meng-Yuan Dai, Si-Wei Liu","submitted_at":"2025-01-25T09:34:17Z","abstract_excerpt":"Roles of the $\\Delta (1232)$, ${N}^{*}(1520)$, and ${N}^{*}(1650)$ resonances in the $\\gamma p\\to{\\pi }^{0}{\\pi }^{0}p $ reaction near threshold is investigated within an effective Lagrangian approach. We have calculated the differential cross sections of the $\\gamma p\\to{\\pi }^{0}{\\pi }^{0}p$ reaction by including the contributions from the $\\Delta (1232)$, ${N}^{*}(1520)$, and ${N}^{*}(1650)$ intermediate states decaying into $\\pi^0 p$ via the $s$-channel nucleon pole and $t$-channel $\\rho$ exchange, and found that the current experimental measurements can be well reproduced. The production "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.15153","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/2501.15153/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":"2026-07-05T10:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hMvACodIWKdNrZQrnMT1X5YPl90i7Q2kW/yTRPKos5Ahzg9KwbXcBDaLwywKRh1R/GPZpRUksP0r9Ue0Xbx9AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:46:40.189864Z"},"content_sha256":"29829b4c804e975003da4a7d77a921707b88d22a013c7e93deba521078bed52f","schema_version":"1.0","event_id":"sha256:29829b4c804e975003da4a7d77a921707b88d22a013c7e93deba521078bed52f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BK6GZCZICAULD3PSN47O5QJSPA/bundle.json","state_url":"https://pith.science/pith/BK6GZCZICAULD3PSN47O5QJSPA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BK6GZCZICAULD3PSN47O5QJSPA/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":"2026-08-06T11:46:40Z","links":{"resolver":"https://pith.science/pith/BK6GZCZICAULD3PSN47O5QJSPA","bundle":"https://pith.science/pith/BK6GZCZICAULD3PSN47O5QJSPA/bundle.json","state":"https://pith.science/pith/BK6GZCZICAULD3PSN47O5QJSPA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BK6GZCZICAULD3PSN47O5QJSPA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BK6GZCZICAULD3PSN47O5QJSPA","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":"27eb0f52df132c6496487ef5fa33ce18b7baa53eb78a41bc5c884dc9c237db18","cross_cats_sorted":["nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-01-25T09:34:17Z","title_canon_sha256":"0a300b9cb473ee79dae7102c027947377978c606de0fa89a1cea857cc12b85ca"},"schema_version":"1.0","source":{"id":"2501.15153","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.15153","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2501.15153v1","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.15153","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"BK6GZCZICAUL","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"BK6GZCZICAULD3PS","created_at":"2026-07-05T10:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"BK6GZCZI","created_at":"2026-07-05T10:05:25Z"}],"graph_snapshots":[{"event_id":"sha256:29829b4c804e975003da4a7d77a921707b88d22a013c7e93deba521078bed52f","target":"graph","created_at":"2026-07-05T10:05:25Z","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/2501.15153/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Roles of the $\\Delta (1232)$, ${N}^{*}(1520)$, and ${N}^{*}(1650)$ resonances in the $\\gamma p\\to{\\pi }^{0}{\\pi }^{0}p $ reaction near threshold is investigated within an effective Lagrangian approach. We have calculated the differential cross sections of the $\\gamma p\\to{\\pi }^{0}{\\pi }^{0}p$ reaction by including the contributions from the $\\Delta (1232)$, ${N}^{*}(1520)$, and ${N}^{*}(1650)$ intermediate states decaying into $\\pi^0 p$ via the $s$-channel nucleon pole and $t$-channel $\\rho$ exchange, and found that the current experimental measurements can be well reproduced. The production ","authors_text":"Cheng Chen, De-Min Li, En Wang, Ju-Jun Xie, Meng-Yuan Dai, Si-Wei Liu","cross_cats":["nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-01-25T09:34:17Z","title":"Roles of $\\Delta(1232)$, $N^*(1520)$, and $N^*(1650)$ resonances in $\\gamma p\\to \\pi^0 \\pi^0 p$ reaction within an effective Lagrangian approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.15153","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:c34ed3e908087ba0b34c2d0e2bde1f288773e1f93f4e389cf4957cfe9c3cbf09","target":"record","created_at":"2026-07-05T10:05:25Z","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":"27eb0f52df132c6496487ef5fa33ce18b7baa53eb78a41bc5c884dc9c237db18","cross_cats_sorted":["nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-01-25T09:34:17Z","title_canon_sha256":"0a300b9cb473ee79dae7102c027947377978c606de0fa89a1cea857cc12b85ca"},"schema_version":"1.0","source":{"id":"2501.15153","kind":"arxiv","version":1}},"canonical_sha256":"0abc6c8b281028b1edf26f3eeec132780d5a919112b1a5b9e6318189b962937e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0abc6c8b281028b1edf26f3eeec132780d5a919112b1a5b9e6318189b962937e","first_computed_at":"2026-07-05T10:05:25.085764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:05:25.085764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LX1KoV6UiH/cPiMBhI5fCl5C3RwtCX2oNqmELnhmkywtDzrllPof7YzUxz7CK0p+Zao32AwFEhuCdi08zfXdCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:05:25.086214Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.15153","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c34ed3e908087ba0b34c2d0e2bde1f288773e1f93f4e389cf4957cfe9c3cbf09","sha256:29829b4c804e975003da4a7d77a921707b88d22a013c7e93deba521078bed52f"],"state_sha256":"3cd93aabbfbb4a6d1b949fadb81c5dd14417971edda8ab05671bc0f416801d51"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TCa43D0y6tVGeUWlBSDzAB5oHRb9coAUqLzqCsfJNH3lh3EkCunj+TcqunQuLpEvo/YUoVfr6YGezP5z87vJCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T11:46:40.206104Z","bundle_sha256":"95decd315e7398db3bc8fb9f941e729d6d300cdaed7f048ebe4ed09205f7f2f2"}}