{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:USEL6J4L3N5NGUQOLMPIWB4ZEE","short_pith_number":"pith:USEL6J4L","canonical_record":{"source":{"id":"1310.2084","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-08T10:41:59Z","cross_cats_sorted":["hep-lat"],"title_canon_sha256":"706674ed4225b9880d00d598c3cddd0520134bd963b11300bf2a102a5540fb26","abstract_canon_sha256":"4a0d96e0d468fdab525ef3c4e6d0ee32980bce0776ca00d9d72a6f27cdad0c56"},"schema_version":"1.0"},"canonical_sha256":"a488bf278bdb7ad3520e5b1e8b07992126b721e2d50724bd626c4ab8c0adb8d5","source":{"kind":"arxiv","id":"1310.2084","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2084","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2084v1","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2084","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"USEL6J4L3N5N","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"USEL6J4L3N5NGUQO","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"USEL6J4L","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:USEL6J4L3N5NGUQOLMPIWB4ZEE","target":"record","payload":{"canonical_record":{"source":{"id":"1310.2084","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-08T10:41:59Z","cross_cats_sorted":["hep-lat"],"title_canon_sha256":"706674ed4225b9880d00d598c3cddd0520134bd963b11300bf2a102a5540fb26","abstract_canon_sha256":"4a0d96e0d468fdab525ef3c4e6d0ee32980bce0776ca00d9d72a6f27cdad0c56"},"schema_version":"1.0"},"canonical_sha256":"a488bf278bdb7ad3520e5b1e8b07992126b721e2d50724bd626c4ab8c0adb8d5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:13.822205Z","signature_b64":"SvKVEhG4wyNymcBbieZuCjtd/3psNnPgx9pE6Ngg0zpntXx4mvO2/ofZjvsAvtZ9LfgVvn1HmVn1rrc+xzqtAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a488bf278bdb7ad3520e5b1e8b07992126b721e2d50724bd626c4ab8c0adb8d5","last_reissued_at":"2026-05-18T01:47:13.821416Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:13.821416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.2084","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":"2026-05-18T01:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"main2UCe8Pip9uTNJfJu9mVAtH/SP1nvsmwcnSCJ7ouBocZMQt+8lIm9/532RdOT8rzfeucqJzH6i43e6fDfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T18:41:34.341386Z"},"content_sha256":"2562c24b22e44bc3ae369bc025aac47772e75bd062f8f6d36917a7f9381bd19d","schema_version":"1.0","event_id":"sha256:2562c24b22e44bc3ae369bc025aac47772e75bd062f8f6d36917a7f9381bd19d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:USEL6J4L3N5NGUQOLMPIWB4ZEE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Facets of chiral perturbation theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat"],"primary_cat":"hep-ph","authors_text":"Gerhard Ecker","submitted_at":"2013-10-08T10:41:59Z","abstract_excerpt":"Chiral perturbation theory is the effective field theory of the Standard Model at low energies. After a short introduction and overview, I discuss three topics where the chiral approach leads to a deeper understanding of low-energy hadron physics: radiative kaon decays, carbogenesis in stellar nucleosynthesis and the interplay of chiral perturbation theory and lattice QCD."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2084","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":"2026-05-18T01:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s4UYtivApBUJNhcuS0dlPA1uzTbLqBXKQh/BAgnBN5VFZzEdtDyMGecJgyQkbBmftD1vlV7kDUW8Vlhj6RmJDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T18:41:34.341735Z"},"content_sha256":"d7884bfa64023091825f418678c150afff08ce627e6bba8ef171937767919f4a","schema_version":"1.0","event_id":"sha256:d7884bfa64023091825f418678c150afff08ce627e6bba8ef171937767919f4a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE/bundle.json","state_url":"https://pith.science/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE/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":"2026-06-03T18:41:34Z","links":{"resolver":"https://pith.science/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE","bundle":"https://pith.science/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE/bundle.json","state":"https://pith.science/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/USEL6J4L3N5NGUQOLMPIWB4ZEE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:USEL6J4L3N5NGUQOLMPIWB4ZEE","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":"4a0d96e0d468fdab525ef3c4e6d0ee32980bce0776ca00d9d72a6f27cdad0c56","cross_cats_sorted":["hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-08T10:41:59Z","title_canon_sha256":"706674ed4225b9880d00d598c3cddd0520134bd963b11300bf2a102a5540fb26"},"schema_version":"1.0","source":{"id":"1310.2084","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2084","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2084v1","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2084","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"USEL6J4L3N5N","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"USEL6J4L3N5NGUQO","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"USEL6J4L","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:d7884bfa64023091825f418678c150afff08ce627e6bba8ef171937767919f4a","target":"graph","created_at":"2026-05-18T01:47:13Z","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":"Chiral perturbation theory is the effective field theory of the Standard Model at low energies. After a short introduction and overview, I discuss three topics where the chiral approach leads to a deeper understanding of low-energy hadron physics: radiative kaon decays, carbogenesis in stellar nucleosynthesis and the interplay of chiral perturbation theory and lattice QCD.","authors_text":"Gerhard Ecker","cross_cats":["hep-lat"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-08T10:41:59Z","title":"Facets of chiral perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2084","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":"sha256:2562c24b22e44bc3ae369bc025aac47772e75bd062f8f6d36917a7f9381bd19d","target":"record","created_at":"2026-05-18T01:47:13Z","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":"4a0d96e0d468fdab525ef3c4e6d0ee32980bce0776ca00d9d72a6f27cdad0c56","cross_cats_sorted":["hep-lat"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-10-08T10:41:59Z","title_canon_sha256":"706674ed4225b9880d00d598c3cddd0520134bd963b11300bf2a102a5540fb26"},"schema_version":"1.0","source":{"id":"1310.2084","kind":"arxiv","version":1}},"canonical_sha256":"a488bf278bdb7ad3520e5b1e8b07992126b721e2d50724bd626c4ab8c0adb8d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a488bf278bdb7ad3520e5b1e8b07992126b721e2d50724bd626c4ab8c0adb8d5","first_computed_at":"2026-05-18T01:47:13.821416Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:13.821416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SvKVEhG4wyNymcBbieZuCjtd/3psNnPgx9pE6Ngg0zpntXx4mvO2/ofZjvsAvtZ9LfgVvn1HmVn1rrc+xzqtAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:13.822205Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.2084","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2562c24b22e44bc3ae369bc025aac47772e75bd062f8f6d36917a7f9381bd19d","sha256:d7884bfa64023091825f418678c150afff08ce627e6bba8ef171937767919f4a"],"state_sha256":"bed166c4ac9199256d467d5b9426160b965ab9bd343c2261df8e3602db2c669f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fSizeZACfyYf+qNhbskIvCu4oqhiiSJ820W7/VlzSO/02TD7y/pFXoalCxwYBljqCRL0qkufLSKGpftbKvReBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T18:41:34.343664Z","bundle_sha256":"3881d71da45c97b6403cd46624f9bb8d7ece57da42b9dc79b31ce67a787b1a92"}}