{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:OOHSASMAYVUKAF6EEAYKQZ3DVM","short_pith_number":"pith:OOHSASMA","canonical_record":{"source":{"id":"nucl-th/9512036","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1995-12-28T01:48:57Z","cross_cats_sorted":[],"title_canon_sha256":"2a1cc47f7337deb00991c8de7ca7598c37260e7f3bcbca37f18bcd61473d513a","abstract_canon_sha256":"6a9e188743c36e995f5f347c7ecc7c42504782c3628acefa0cc1485099f7ea90"},"schema_version":"1.0"},"canonical_sha256":"738f204980c568a017c42030a86763ab23b134ca960dc9c499d4bda7eb53d166","source":{"kind":"arxiv","id":"nucl-th/9512036","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9512036","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9512036v2","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9512036","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"OOHSASMAYVUK","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"pith_short_16","alias_value":"OOHSASMAYVUKAF6E","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"pith_short_8","alias_value":"OOHSASMA","created_at":"2026-07-04T15:24:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:OOHSASMAYVUKAF6EEAYKQZ3DVM","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/9512036","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1995-12-28T01:48:57Z","cross_cats_sorted":[],"title_canon_sha256":"2a1cc47f7337deb00991c8de7ca7598c37260e7f3bcbca37f18bcd61473d513a","abstract_canon_sha256":"6a9e188743c36e995f5f347c7ecc7c42504782c3628acefa0cc1485099f7ea90"},"schema_version":"1.0"},"canonical_sha256":"738f204980c568a017c42030a86763ab23b134ca960dc9c499d4bda7eb53d166","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:24:03.454862Z","signature_b64":"SFUaZWbD10HdWdWLLO17Nr0mw9e0vVZc1gnomKUwxPSt7PNreqIU0jGXyzk+U15pyKRI731sknMPMitQovb2Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"738f204980c568a017c42030a86763ab23b134ca960dc9c499d4bda7eb53d166","last_reissued_at":"2026-07-04T15:24:03.454477Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:24:03.454477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/9512036","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":"2026-07-04T15:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lGWidKDv9xH+i7uIh8BEHYfoEhYXHbh7WNU5yg1ftjk8TOzmBYz89iogtGahYVlcMNqgGSYN6gwY/cPmr/OGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T23:42:46.932641Z"},"content_sha256":"15ce570776286260a2f59e22846a466e7a0c37280fb2136754e04d8b540cf203","schema_version":"1.0","event_id":"sha256:15ce570776286260a2f59e22846a466e7a0c37280fb2136754e04d8b540cf203"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:OOHSASMAYVUKAF6EEAYKQZ3DVM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The $p p \\to p p\\pi^0$ Reaction near Threshold: A Chiral Power Counting Approach","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"G.A. Miller, J.L. Friar, T.D. Cohen, U. van Kolck","submitted_at":"1995-12-28T01:48:57Z","abstract_excerpt":"We use power-counting arguments as an organizing principle to apply chiral perturbation theory, including an explicit $\\Delta$, to the $p p \\rightarrow p p \\pi^0$ reaction near threshold. There are two lowest-order leading mechanisms expected to contribute to the amplitude with similar magnitudes: an impulse term, and a $\\Delta$-excitation mechanism. We examine formally sub-leading but potentially large mechanisms, including pion-rescattering and short-ranged contributions. We show that the pion-rescattering contribution is enhanced by off-shell effects and has a sign opposite to that of a rec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9512036","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/nucl-th/9512036/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":"2026-07-04T15:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xK7jVqkMP2L2CgqecbezjlASGqnYJLzBgeuP51h9SCDy6LKrmdhrhwgOqZuKwZyRFRB3j/FcKhRh9LRUW6aLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T23:42:46.933441Z"},"content_sha256":"79d36c0341616e9056f6c0a9dc4f8b79ef583328a3bfd7e9276ef6ced1041024","schema_version":"1.0","event_id":"sha256:79d36c0341616e9056f6c0a9dc4f8b79ef583328a3bfd7e9276ef6ced1041024"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM/bundle.json","state_url":"https://pith.science/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM/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":"2026-08-10T23:42:46Z","links":{"resolver":"https://pith.science/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM","bundle":"https://pith.science/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM/bundle.json","state":"https://pith.science/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OOHSASMAYVUKAF6EEAYKQZ3DVM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:OOHSASMAYVUKAF6EEAYKQZ3DVM","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":"6a9e188743c36e995f5f347c7ecc7c42504782c3628acefa0cc1485099f7ea90","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1995-12-28T01:48:57Z","title_canon_sha256":"2a1cc47f7337deb00991c8de7ca7598c37260e7f3bcbca37f18bcd61473d513a"},"schema_version":"1.0","source":{"id":"nucl-th/9512036","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9512036","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9512036v2","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9512036","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"OOHSASMAYVUK","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"pith_short_16","alias_value":"OOHSASMAYVUKAF6E","created_at":"2026-07-04T15:24:03Z"},{"alias_kind":"pith_short_8","alias_value":"OOHSASMA","created_at":"2026-07-04T15:24:03Z"}],"graph_snapshots":[{"event_id":"sha256:79d36c0341616e9056f6c0a9dc4f8b79ef583328a3bfd7e9276ef6ced1041024","target":"graph","created_at":"2026-07-04T15:24:03Z","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/nucl-th/9512036/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use power-counting arguments as an organizing principle to apply chiral perturbation theory, including an explicit $\\Delta$, to the $p p \\rightarrow p p \\pi^0$ reaction near threshold. There are two lowest-order leading mechanisms expected to contribute to the amplitude with similar magnitudes: an impulse term, and a $\\Delta$-excitation mechanism. We examine formally sub-leading but potentially large mechanisms, including pion-rescattering and short-ranged contributions. We show that the pion-rescattering contribution is enhanced by off-shell effects and has a sign opposite to that of a rec","authors_text":"G.A. Miller, J.L. Friar, T.D. Cohen, U. van Kolck","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"1995-12-28T01:48:57Z","title":"The $p p \\to p p\\pi^0$ Reaction near Threshold: A Chiral Power Counting Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9512036","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":"sha256:15ce570776286260a2f59e22846a466e7a0c37280fb2136754e04d8b540cf203","target":"record","created_at":"2026-07-04T15:24:03Z","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":"6a9e188743c36e995f5f347c7ecc7c42504782c3628acefa0cc1485099f7ea90","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1995-12-28T01:48:57Z","title_canon_sha256":"2a1cc47f7337deb00991c8de7ca7598c37260e7f3bcbca37f18bcd61473d513a"},"schema_version":"1.0","source":{"id":"nucl-th/9512036","kind":"arxiv","version":2}},"canonical_sha256":"738f204980c568a017c42030a86763ab23b134ca960dc9c499d4bda7eb53d166","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"738f204980c568a017c42030a86763ab23b134ca960dc9c499d4bda7eb53d166","first_computed_at":"2026-07-04T15:24:03.454477Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:24:03.454477Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SFUaZWbD10HdWdWLLO17Nr0mw9e0vVZc1gnomKUwxPSt7PNreqIU0jGXyzk+U15pyKRI731sknMPMitQovb2Bg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:24:03.454862Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/9512036","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:15ce570776286260a2f59e22846a466e7a0c37280fb2136754e04d8b540cf203","sha256:79d36c0341616e9056f6c0a9dc4f8b79ef583328a3bfd7e9276ef6ced1041024"],"state_sha256":"c7ce21580acb19b17ebed40e2878cdd7eb2289995692e919458b1b20a9c5663f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YO3i6UNuvoli30vjWHiMQaZGV16AgqX5Niwke0wKxot3tBKCZ6V995fseZa79mf79c2A7FKo1O9UMhDff6KqAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T23:42:46.948935Z","bundle_sha256":"45cd5d6d25bc77f9580e884740fac1a0a145fafa5b89f4251e541c8696d6af64"}}