{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:46UWFNAV4LSBFKSM5HJYCK7UZ2","short_pith_number":"pith:46UWFNAV","canonical_record":{"source":{"id":"hep-ph/9806303","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-06-08T12:53:54Z","cross_cats_sorted":[],"title_canon_sha256":"cf142356bbeca03da8327804f28b268fc4645f29e588c86e7f5e874da78820cd","abstract_canon_sha256":"9b1af43197ed696235b0c5038eb96c7c383b84a4dd472f8e2e04de0f141f64ca"},"schema_version":"1.0"},"canonical_sha256":"e7a962b415e2e412aa4ce9d3812bf4ceb94273c87f4c94b626216a503cb9ac9c","source":{"kind":"arxiv","id":"hep-ph/9806303","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9806303","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9806303v1","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9806303","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"pith_short_12","alias_value":"46UWFNAV4LSB","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"pith_short_16","alias_value":"46UWFNAV4LSBFKSM","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"pith_short_8","alias_value":"46UWFNAV","created_at":"2026-07-04T14:30:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:46UWFNAV4LSBFKSM5HJYCK7UZ2","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9806303","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1998-06-08T12:53:54Z","cross_cats_sorted":[],"title_canon_sha256":"cf142356bbeca03da8327804f28b268fc4645f29e588c86e7f5e874da78820cd","abstract_canon_sha256":"9b1af43197ed696235b0c5038eb96c7c383b84a4dd472f8e2e04de0f141f64ca"},"schema_version":"1.0"},"canonical_sha256":"e7a962b415e2e412aa4ce9d3812bf4ceb94273c87f4c94b626216a503cb9ac9c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:30:33.400922Z","signature_b64":"9TvQqnb2Btxv/77yo5YZL8IhERYWxv5ZfY7RJuDgXGajAF22YobgpMcOqtBO9Q19b5Ol2DrejyQFpnoJmi9YDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7a962b415e2e412aa4ce9d3812bf4ceb94273c87f4c94b626216a503cb9ac9c","last_reissued_at":"2026-07-04T14:30:33.400501Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:30:33.400501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9806303","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":"2026-07-04T14:30:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vdUJ7a/MvrgKIackeNa//7EVloDcJE2P33hjwxS3yqpiBlHpJ8pRQKOxfb+NG8j9xeZxoxu55sbWcYEYIjebBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T16:06:26.605802Z"},"content_sha256":"d7027953ef811d29ba42e4f89b5d6343597e6bdd222f712cd16b2ff5123fd356","schema_version":"1.0","event_id":"sha256:d7027953ef811d29ba42e4f89b5d6343597e6bdd222f712cd16b2ff5123fd356"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:46UWFNAV4LSBFKSM5HJYCK7UZ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effective Field Theory","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Pich","submitted_at":"1998-06-08T12:53:54Z","abstract_excerpt":"These lectures provide an introduction to the basic ideas and methods of Effective Field Theory, and a description of a few interesting phenomenological applications in particle physics. The main conceptual foundations are discussed in sections 2 and 3, which cover the momentum expansion and the most important issues associated with the renormalization process. Section 4 presents an overview of Chiral Perturbation Theory, the low-energy realization of Quantum Chromodynamics in the light quark sector. The Chiral Perturbation Theory framework is applied to weak transitions in section 5, where th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9806303","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/hep-ph/9806303/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":"2026-07-04T14:30:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t+x2Rd4yegDtN5q6lITwEyQcJQmgbPRcudG5uNgHYIm76p8SnjRtKMAcVXceXHPquJFzYwPO2PYtxVzTRFgEAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T16:06:26.606685Z"},"content_sha256":"952b6c53a9459dfb5ed001e282c9dfc5e6edd71adef30a9385de62f8902b0e8a","schema_version":"1.0","event_id":"sha256:952b6c53a9459dfb5ed001e282c9dfc5e6edd71adef30a9385de62f8902b0e8a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2/bundle.json","state_url":"https://pith.science/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2/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":"2026-08-04T16:06:26Z","links":{"resolver":"https://pith.science/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2","bundle":"https://pith.science/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2/bundle.json","state":"https://pith.science/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/46UWFNAV4LSBFKSM5HJYCK7UZ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:46UWFNAV4LSBFKSM5HJYCK7UZ2","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":"9b1af43197ed696235b0c5038eb96c7c383b84a4dd472f8e2e04de0f141f64ca","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-06-08T12:53:54Z","title_canon_sha256":"cf142356bbeca03da8327804f28b268fc4645f29e588c86e7f5e874da78820cd"},"schema_version":"1.0","source":{"id":"hep-ph/9806303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9806303","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9806303v1","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9806303","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"pith_short_12","alias_value":"46UWFNAV4LSB","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"pith_short_16","alias_value":"46UWFNAV4LSBFKSM","created_at":"2026-07-04T14:30:33Z"},{"alias_kind":"pith_short_8","alias_value":"46UWFNAV","created_at":"2026-07-04T14:30:33Z"}],"graph_snapshots":[{"event_id":"sha256:952b6c53a9459dfb5ed001e282c9dfc5e6edd71adef30a9385de62f8902b0e8a","target":"graph","created_at":"2026-07-04T14:30:33Z","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/hep-ph/9806303/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"These lectures provide an introduction to the basic ideas and methods of Effective Field Theory, and a description of a few interesting phenomenological applications in particle physics. The main conceptual foundations are discussed in sections 2 and 3, which cover the momentum expansion and the most important issues associated with the renormalization process. Section 4 presents an overview of Chiral Perturbation Theory, the low-energy realization of Quantum Chromodynamics in the light quark sector. The Chiral Perturbation Theory framework is applied to weak transitions in section 5, where th","authors_text":"A. Pich","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1998-06-08T12:53:54Z","title":"Effective Field Theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9806303","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:d7027953ef811d29ba42e4f89b5d6343597e6bdd222f712cd16b2ff5123fd356","target":"record","created_at":"2026-07-04T14:30:33Z","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":"9b1af43197ed696235b0c5038eb96c7c383b84a4dd472f8e2e04de0f141f64ca","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1998-06-08T12:53:54Z","title_canon_sha256":"cf142356bbeca03da8327804f28b268fc4645f29e588c86e7f5e874da78820cd"},"schema_version":"1.0","source":{"id":"hep-ph/9806303","kind":"arxiv","version":1}},"canonical_sha256":"e7a962b415e2e412aa4ce9d3812bf4ceb94273c87f4c94b626216a503cb9ac9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7a962b415e2e412aa4ce9d3812bf4ceb94273c87f4c94b626216a503cb9ac9c","first_computed_at":"2026-07-04T14:30:33.400501Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:30:33.400501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9TvQqnb2Btxv/77yo5YZL8IhERYWxv5ZfY7RJuDgXGajAF22YobgpMcOqtBO9Q19b5Ol2DrejyQFpnoJmi9YDg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:30:33.400922Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9806303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7027953ef811d29ba42e4f89b5d6343597e6bdd222f712cd16b2ff5123fd356","sha256:952b6c53a9459dfb5ed001e282c9dfc5e6edd71adef30a9385de62f8902b0e8a"],"state_sha256":"5ef3c0194b29dbba478fbe39a2f3416d1b7241069f62057ad4c32ce0a1d300ce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3MfUFTZa6s6yHjLZ60dGaNSnl8uCNr37XlnGOYRNAPKfgDfMksrFCQDexQPzSjjRjEwUkkaPd3MMYbtXP0oFBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T16:06:26.612398Z","bundle_sha256":"bd75d10ab8b74fafbbdd0fd2bed1083341ebe708db40477588abcfb63ddab938"}}