{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:GMEUKNPDT5WFZM5S6RHKBXSXHH","short_pith_number":"pith:GMEUKNPD","canonical_record":{"source":{"id":"1503.03649","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-03-12T09:43:58Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"915aaae0d24dfbe1252e7b124bc8d0e75ab3763e8415f44d584811796143c438","abstract_canon_sha256":"c28e3e8d165ee217fe09d21c125a99561dab826fda439f0bc22ff27892978715"},"schema_version":"1.0"},"canonical_sha256":"33094535e39f6c5cb3b2f44ea0de5739ca415cfa1dcdcc7d7426c2f4876c7d51","source":{"kind":"arxiv","id":"1503.03649","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.03649","created_at":"2026-05-18T01:30:25Z"},{"alias_kind":"arxiv_version","alias_value":"1503.03649v2","created_at":"2026-05-18T01:30:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.03649","created_at":"2026-05-18T01:30:25Z"},{"alias_kind":"pith_short_12","alias_value":"GMEUKNPDT5WF","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GMEUKNPDT5WFZM5S","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GMEUKNPD","created_at":"2026-05-18T12:29:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:GMEUKNPDT5WFZM5S6RHKBXSXHH","target":"record","payload":{"canonical_record":{"source":{"id":"1503.03649","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-03-12T09:43:58Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"915aaae0d24dfbe1252e7b124bc8d0e75ab3763e8415f44d584811796143c438","abstract_canon_sha256":"c28e3e8d165ee217fe09d21c125a99561dab826fda439f0bc22ff27892978715"},"schema_version":"1.0"},"canonical_sha256":"33094535e39f6c5cb3b2f44ea0de5739ca415cfa1dcdcc7d7426c2f4876c7d51","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:25.041528Z","signature_b64":"p22Jrtipr7/NOx0xcAisKVGp6VtEx6Z5mlLmZNUhFNRjyA8gFGMM+zO0IiNrT9vFmfX6KBq403okxE86PqeyDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33094535e39f6c5cb3b2f44ea0de5739ca415cfa1dcdcc7d7426c2f4876c7d51","last_reissued_at":"2026-05-18T01:30:25.040919Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:25.040919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.03649","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":"2026-05-18T01:30:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qGAvxTL2ikdWcu0uKetcDJLUfRuOt4r6ukRq2IARtQmZATmkipw1fL4LR0Xznr5j0SwnRh724oglf+/uP6I1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:52:19.511501Z"},"content_sha256":"9bd72abc7f5e2f071da66206bc24732efb90528f09dea6dc28b622aa565794d5","schema_version":"1.0","event_id":"sha256:9bd72abc7f5e2f071da66206bc24732efb90528f09dea6dc28b622aa565794d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:GMEUKNPDT5WFZM5S6RHKBXSXHH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nucleon-pion-state contribution to nucleon two-point correlation functions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-lat","authors_text":"Oliver Bar","submitted_at":"2015-03-12T09:43:58Z","abstract_excerpt":"We study the nucleon-pion-state contribution to the QCD two-point function of the standard nucleon interpolating fields. For sufficiently small quark masses these two-particle states are expected to have a smaller total energy than the single-particle excited states. We calculate the nucleon-pion-state contribution to leading order in chiral perturbation theory. Both parity channels are considered. We find the nucleon-pion-state contribution to be small, contributing at the few percent level to the effective mass in the positive parity channel."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.03649","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":""},"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":"2026-05-18T01:30:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TKdcd4dqa21YHJ65q9h9DJJ1bty4cmFqTZu/ZIBLcK19trbYXt8QcBNE3PuZcX3wnhEqGWuoWHREvOYOgkgpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T13:52:19.511840Z"},"content_sha256":"08da466feab4f4f514ed72bb0eeae808d36a2bb56533474f72ab06b6620ee58f","schema_version":"1.0","event_id":"sha256:08da466feab4f4f514ed72bb0eeae808d36a2bb56533474f72ab06b6620ee58f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH/bundle.json","state_url":"https://pith.science/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH/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":"2026-06-02T13:52:19Z","links":{"resolver":"https://pith.science/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH","bundle":"https://pith.science/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH/bundle.json","state":"https://pith.science/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GMEUKNPDT5WFZM5S6RHKBXSXHH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:GMEUKNPDT5WFZM5S6RHKBXSXHH","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":"c28e3e8d165ee217fe09d21c125a99561dab826fda439f0bc22ff27892978715","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-03-12T09:43:58Z","title_canon_sha256":"915aaae0d24dfbe1252e7b124bc8d0e75ab3763e8415f44d584811796143c438"},"schema_version":"1.0","source":{"id":"1503.03649","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.03649","created_at":"2026-05-18T01:30:25Z"},{"alias_kind":"arxiv_version","alias_value":"1503.03649v2","created_at":"2026-05-18T01:30:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.03649","created_at":"2026-05-18T01:30:25Z"},{"alias_kind":"pith_short_12","alias_value":"GMEUKNPDT5WF","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_16","alias_value":"GMEUKNPDT5WFZM5S","created_at":"2026-05-18T12:29:22Z"},{"alias_kind":"pith_short_8","alias_value":"GMEUKNPD","created_at":"2026-05-18T12:29:22Z"}],"graph_snapshots":[{"event_id":"sha256:08da466feab4f4f514ed72bb0eeae808d36a2bb56533474f72ab06b6620ee58f","target":"graph","created_at":"2026-05-18T01:30:25Z","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"},"paper":{"abstract_excerpt":"We study the nucleon-pion-state contribution to the QCD two-point function of the standard nucleon interpolating fields. For sufficiently small quark masses these two-particle states are expected to have a smaller total energy than the single-particle excited states. We calculate the nucleon-pion-state contribution to leading order in chiral perturbation theory. Both parity channels are considered. We find the nucleon-pion-state contribution to be small, contributing at the few percent level to the effective mass in the positive parity channel.","authors_text":"Oliver Bar","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-03-12T09:43:58Z","title":"Nucleon-pion-state contribution to nucleon two-point correlation functions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.03649","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":"sha256:9bd72abc7f5e2f071da66206bc24732efb90528f09dea6dc28b622aa565794d5","target":"record","created_at":"2026-05-18T01:30:25Z","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":"c28e3e8d165ee217fe09d21c125a99561dab826fda439f0bc22ff27892978715","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-03-12T09:43:58Z","title_canon_sha256":"915aaae0d24dfbe1252e7b124bc8d0e75ab3763e8415f44d584811796143c438"},"schema_version":"1.0","source":{"id":"1503.03649","kind":"arxiv","version":2}},"canonical_sha256":"33094535e39f6c5cb3b2f44ea0de5739ca415cfa1dcdcc7d7426c2f4876c7d51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33094535e39f6c5cb3b2f44ea0de5739ca415cfa1dcdcc7d7426c2f4876c7d51","first_computed_at":"2026-05-18T01:30:25.040919Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:25.040919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p22Jrtipr7/NOx0xcAisKVGp6VtEx6Z5mlLmZNUhFNRjyA8gFGMM+zO0IiNrT9vFmfX6KBq403okxE86PqeyDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:25.041528Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.03649","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9bd72abc7f5e2f071da66206bc24732efb90528f09dea6dc28b622aa565794d5","sha256:08da466feab4f4f514ed72bb0eeae808d36a2bb56533474f72ab06b6620ee58f"],"state_sha256":"55c50c89bf2563a013b5395bc371aa7c224fdd9a834051d753eeaa881b425e42"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JV0jLWC/T6I5Q4E9DeXiK5SZ9s5Bg8QzX71z0bhfU86a5WOGRKTcsIr4xIwpkMb9a6R92liS39jCDdFm6dZGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T13:52:19.514303Z","bundle_sha256":"1191eb823a8d32bfe35bf7550eab2580e3d4c4f2f75948fe2fb52a1e02b226f6"}}