{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2KP3M6DKACVUGD7WRGXL37WCLD","short_pith_number":"pith:2KP3M6DK","canonical_record":{"source":{"id":"1109.4265","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-09-20T11:07:09Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"b9aab3c5a813a5a9fe35e3a90e8ab66dc2fdfd77b94445c5bdce75e792c299cc","abstract_canon_sha256":"48a9026d2000df4e5ddf15bc597bb8b56ee6d909701a3deeb920c5763c5eae80"},"schema_version":"1.0"},"canonical_sha256":"d29fb6786a00ab430ff689aebdfec258ddba5689f448eff9248259b07197b322","source":{"kind":"arxiv","id":"1109.4265","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4265","created_at":"2026-05-18T01:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4265v3","created_at":"2026-05-18T01:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4265","created_at":"2026-05-18T01:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"2KP3M6DKACVU","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2KP3M6DKACVUGD7W","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2KP3M6DK","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2KP3M6DKACVUGD7WRGXL37WCLD","target":"record","payload":{"canonical_record":{"source":{"id":"1109.4265","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-09-20T11:07:09Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"b9aab3c5a813a5a9fe35e3a90e8ab66dc2fdfd77b94445c5bdce75e792c299cc","abstract_canon_sha256":"48a9026d2000df4e5ddf15bc597bb8b56ee6d909701a3deeb920c5763c5eae80"},"schema_version":"1.0"},"canonical_sha256":"d29fb6786a00ab430ff689aebdfec258ddba5689f448eff9248259b07197b322","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:19:55.892264Z","signature_b64":"+1PLTRwkTj7ot9QPg36w264a+s/4ENa0BXcoDQ3pqc/5TDAyySFXVXNtzigdSAQDS/DVzgqD7uKjtF/xZP07Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d29fb6786a00ab430ff689aebdfec258ddba5689f448eff9248259b07197b322","last_reissued_at":"2026-05-18T01:19:55.891878Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:19:55.891878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.4265","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VYP1Se9HWmxRSgmUvLyjRapsjS85PNHxc2u072HqZCmpaXgiU6fxdoIC/7/kDdOOkOf+lmnZcul9xyc3C5ZKAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:25:20.821589Z"},"content_sha256":"c1c6b43191e7d11a16133fc7a8ca8db9142570902bbd6f2c357c46c6706cdfea","schema_version":"1.0","event_id":"sha256:c1c6b43191e7d11a16133fc7a8ca8db9142570902bbd6f2c357c46c6706cdfea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2KP3M6DKACVUGD7WRGXL37WCLD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sigma term and strangeness content of octet baryons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-lat","authors_text":"A. Portelli, A. Ramos, A. Schafer, C. Hoelbling, J. Frison, K. K. Szabo, L. Lellouch, S. D. Katz, S. Durr, S. Krieg, T. Hemmert, T. Kurth, T. Lippert, Z. Fodor","submitted_at":"2011-09-20T11:07:09Z","abstract_excerpt":"By using lattice QCD computations we determine the sigma terms and strangeness content of all octet baryons by means of an application of the Hellmann-Feynman theorem. In addition to polynomial and rational expressions for the quark mass dependence of octet members, we use SU(3) covariant baryon chiral perturbation theory to perform the extrapolation to the physical up and down quark masses. Our N_f=2+1 lattice ensembles include pion masses down to about 190 MeV in large volumes (M_\\pi L > 4), and three values of the lattice spacing. Our main results are the nucleon sigma term \\sigma_{\\pi N} ="},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4265","kind":"arxiv","version":3},"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":"2026-05-18T01:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LzhencS67qjrpEywSr1tWUepXXd5OIADZLb75Lh+y+evsqc6MzD2B4d7WcipnDvBduT0t8jZp1p9xCDriLIqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:25:20.822011Z"},"content_sha256":"e3427cc0a1d47ab1e89bc0e425ee73ac3be86f62e30b99c7f5bbb362d5551dd8","schema_version":"1.0","event_id":"sha256:e3427cc0a1d47ab1e89bc0e425ee73ac3be86f62e30b99c7f5bbb362d5551dd8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2KP3M6DKACVUGD7WRGXL37WCLD/bundle.json","state_url":"https://pith.science/pith/2KP3M6DKACVUGD7WRGXL37WCLD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2KP3M6DKACVUGD7WRGXL37WCLD/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":"2026-05-31T17:25:20Z","links":{"resolver":"https://pith.science/pith/2KP3M6DKACVUGD7WRGXL37WCLD","bundle":"https://pith.science/pith/2KP3M6DKACVUGD7WRGXL37WCLD/bundle.json","state":"https://pith.science/pith/2KP3M6DKACVUGD7WRGXL37WCLD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2KP3M6DKACVUGD7WRGXL37WCLD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2KP3M6DKACVUGD7WRGXL37WCLD","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":"48a9026d2000df4e5ddf15bc597bb8b56ee6d909701a3deeb920c5763c5eae80","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-09-20T11:07:09Z","title_canon_sha256":"b9aab3c5a813a5a9fe35e3a90e8ab66dc2fdfd77b94445c5bdce75e792c299cc"},"schema_version":"1.0","source":{"id":"1109.4265","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4265","created_at":"2026-05-18T01:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4265v3","created_at":"2026-05-18T01:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4265","created_at":"2026-05-18T01:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"2KP3M6DKACVU","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2KP3M6DKACVUGD7W","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2KP3M6DK","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:e3427cc0a1d47ab1e89bc0e425ee73ac3be86f62e30b99c7f5bbb362d5551dd8","target":"graph","created_at":"2026-05-18T01:19:55Z","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":"By using lattice QCD computations we determine the sigma terms and strangeness content of all octet baryons by means of an application of the Hellmann-Feynman theorem. In addition to polynomial and rational expressions for the quark mass dependence of octet members, we use SU(3) covariant baryon chiral perturbation theory to perform the extrapolation to the physical up and down quark masses. Our N_f=2+1 lattice ensembles include pion masses down to about 190 MeV in large volumes (M_\\pi L > 4), and three values of the lattice spacing. Our main results are the nucleon sigma term \\sigma_{\\pi N} =","authors_text":"A. Portelli, A. Ramos, A. Schafer, C. Hoelbling, J. Frison, K. K. Szabo, L. Lellouch, S. D. Katz, S. Durr, S. Krieg, T. Hemmert, T. Kurth, T. Lippert, Z. Fodor","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-09-20T11:07:09Z","title":"Sigma term and strangeness content of octet baryons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4265","kind":"arxiv","version":3},"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:c1c6b43191e7d11a16133fc7a8ca8db9142570902bbd6f2c357c46c6706cdfea","target":"record","created_at":"2026-05-18T01:19:55Z","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":"48a9026d2000df4e5ddf15bc597bb8b56ee6d909701a3deeb920c5763c5eae80","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2011-09-20T11:07:09Z","title_canon_sha256":"b9aab3c5a813a5a9fe35e3a90e8ab66dc2fdfd77b94445c5bdce75e792c299cc"},"schema_version":"1.0","source":{"id":"1109.4265","kind":"arxiv","version":3}},"canonical_sha256":"d29fb6786a00ab430ff689aebdfec258ddba5689f448eff9248259b07197b322","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d29fb6786a00ab430ff689aebdfec258ddba5689f448eff9248259b07197b322","first_computed_at":"2026-05-18T01:19:55.891878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:19:55.891878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+1PLTRwkTj7ot9QPg36w264a+s/4ENa0BXcoDQ3pqc/5TDAyySFXVXNtzigdSAQDS/DVzgqD7uKjtF/xZP07Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T01:19:55.892264Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4265","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c1c6b43191e7d11a16133fc7a8ca8db9142570902bbd6f2c357c46c6706cdfea","sha256:e3427cc0a1d47ab1e89bc0e425ee73ac3be86f62e30b99c7f5bbb362d5551dd8"],"state_sha256":"ad76835b9d196cc9b97e70c19f60984581fcfa0ed429b8a6cc39556cd5f06a4e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZX8Z4uPjFDttoxmpRPQ/QZiLQi+PvK3SmdNvfH9aFvvb3/go2F55hzAqzaaiORngP+19sR/+ZJz45fyH2L4tDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T17:25:20.824422Z","bundle_sha256":"b44e723ff948364aa1057faa0f9ea929d11015bb2469b149a6902639e3fd16d8"}}