{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:EOTMDZ4RDWL6OTZL4U3FAL3OFC","short_pith_number":"pith:EOTMDZ4R","canonical_record":{"source":{"id":"2502.02961","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-02-05T07:57:32Z","cross_cats_sorted":["hep-ex","hep-lat","nucl-th"],"title_canon_sha256":"5472c5146bbac644c56a79442d9f9bf07250689ff8c3754e8f4fc1da5a65872b","abstract_canon_sha256":"e07520851552076df28c0081543bfb664bcca602259ce10d6cecb65b7a480f1d"},"schema_version":"1.0"},"canonical_sha256":"23a6c1e7911d97e74f2be536502f6e28aade547eac1f24a350cca54841b6024b","source":{"kind":"arxiv","id":"2502.02961","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.02961","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"arxiv_version","alias_value":"2502.02961v1","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.02961","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"pith_short_12","alias_value":"EOTMDZ4RDWL6","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"pith_short_16","alias_value":"EOTMDZ4RDWL6OTZL","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"pith_short_8","alias_value":"EOTMDZ4R","created_at":"2026-07-05T10:09:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:EOTMDZ4RDWL6OTZL4U3FAL3OFC","target":"record","payload":{"canonical_record":{"source":{"id":"2502.02961","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-02-05T07:57:32Z","cross_cats_sorted":["hep-ex","hep-lat","nucl-th"],"title_canon_sha256":"5472c5146bbac644c56a79442d9f9bf07250689ff8c3754e8f4fc1da5a65872b","abstract_canon_sha256":"e07520851552076df28c0081543bfb664bcca602259ce10d6cecb65b7a480f1d"},"schema_version":"1.0"},"canonical_sha256":"23a6c1e7911d97e74f2be536502f6e28aade547eac1f24a350cca54841b6024b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:09:57.533611Z","signature_b64":"HDJrIW0aSlS9sNQot0hjMRV2PFyANkhkWTqp2WdDJVB+rf1Cr8wMvPHOpO8dAuSdg5arBVPgGIr++6Q6yODzBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23a6c1e7911d97e74f2be536502f6e28aade547eac1f24a350cca54841b6024b","last_reissued_at":"2026-07-05T10:09:57.533135Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:09:57.533135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.02961","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":"2026-07-05T10:09:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SSsgfaH/9mCzqibkCjiZtJWsTDF16LhVy/kntwq1vVUfVri/U/XuIqedsFhTxBNGu74UvuKK6iv8moWb+HjQAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T23:24:14.278383Z"},"content_sha256":"a70963dec9792553c73b92849dd3ca7594a8213afddb7d58631884a5547b918c","schema_version":"1.0","event_id":"sha256:a70963dec9792553c73b92849dd3ca7594a8213afddb7d58631884a5547b918c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:EOTMDZ4RDWL6OTZL4U3FAL3OFC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extraordinary nature of the nucleon scalar charge and its densities as a signal of nontrivial vacuum structure of QCD","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","hep-lat","nucl-th"],"primary_cat":"hep-ph","authors_text":"Masashi Wakamatsu","submitted_at":"2025-02-05T07:57:32Z","abstract_excerpt":"It is widely known that the nucleon scalar charge is proportional to the pion-nucleon sigma term as one of the important low energy observables of QCD. Especially interesting to us is the physics of the nucleon scalar charge densities. This comes from the fact that the corresponding operator has the same quantum number as the physical vacuum. It indicates unusual behavior of the the nucleon scalar density as a function of the distance $r$ from the nucleon center. Namely, it would not be reduced down to zero at the spatial infinity but rather approaches some nonzero constant corresponding to th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.02961","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/2502.02961/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":"2026-07-05T10:09:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m4ALDCp+oMhwV+l0aEueOOX46iOM34+Z2v7rfGgOKagaXBPvtP7Fv76S/QG/2cPtw+QIJuMmA4n5jxWAZ98KCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T23:24:14.278877Z"},"content_sha256":"60502782373949aec9e95e7a6b03a439ee0e2d31f8c82141e138f070784eac53","schema_version":"1.0","event_id":"sha256:60502782373949aec9e95e7a6b03a439ee0e2d31f8c82141e138f070784eac53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC/bundle.json","state_url":"https://pith.science/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC/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":"2026-08-20T23:24:14Z","links":{"resolver":"https://pith.science/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC","bundle":"https://pith.science/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC/bundle.json","state":"https://pith.science/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EOTMDZ4RDWL6OTZL4U3FAL3OFC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:EOTMDZ4RDWL6OTZL4U3FAL3OFC","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":"e07520851552076df28c0081543bfb664bcca602259ce10d6cecb65b7a480f1d","cross_cats_sorted":["hep-ex","hep-lat","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-02-05T07:57:32Z","title_canon_sha256":"5472c5146bbac644c56a79442d9f9bf07250689ff8c3754e8f4fc1da5a65872b"},"schema_version":"1.0","source":{"id":"2502.02961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.02961","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"arxiv_version","alias_value":"2502.02961v1","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.02961","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"pith_short_12","alias_value":"EOTMDZ4RDWL6","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"pith_short_16","alias_value":"EOTMDZ4RDWL6OTZL","created_at":"2026-07-05T10:09:57Z"},{"alias_kind":"pith_short_8","alias_value":"EOTMDZ4R","created_at":"2026-07-05T10:09:57Z"}],"graph_snapshots":[{"event_id":"sha256:60502782373949aec9e95e7a6b03a439ee0e2d31f8c82141e138f070784eac53","target":"graph","created_at":"2026-07-05T10:09:57Z","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/2502.02961/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It is widely known that the nucleon scalar charge is proportional to the pion-nucleon sigma term as one of the important low energy observables of QCD. Especially interesting to us is the physics of the nucleon scalar charge densities. This comes from the fact that the corresponding operator has the same quantum number as the physical vacuum. It indicates unusual behavior of the the nucleon scalar density as a function of the distance $r$ from the nucleon center. Namely, it would not be reduced down to zero at the spatial infinity but rather approaches some nonzero constant corresponding to th","authors_text":"Masashi Wakamatsu","cross_cats":["hep-ex","hep-lat","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-02-05T07:57:32Z","title":"Extraordinary nature of the nucleon scalar charge and its densities as a signal of nontrivial vacuum structure of QCD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.02961","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:a70963dec9792553c73b92849dd3ca7594a8213afddb7d58631884a5547b918c","target":"record","created_at":"2026-07-05T10:09:57Z","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":"e07520851552076df28c0081543bfb664bcca602259ce10d6cecb65b7a480f1d","cross_cats_sorted":["hep-ex","hep-lat","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2025-02-05T07:57:32Z","title_canon_sha256":"5472c5146bbac644c56a79442d9f9bf07250689ff8c3754e8f4fc1da5a65872b"},"schema_version":"1.0","source":{"id":"2502.02961","kind":"arxiv","version":1}},"canonical_sha256":"23a6c1e7911d97e74f2be536502f6e28aade547eac1f24a350cca54841b6024b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23a6c1e7911d97e74f2be536502f6e28aade547eac1f24a350cca54841b6024b","first_computed_at":"2026-07-05T10:09:57.533135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:09:57.533135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HDJrIW0aSlS9sNQot0hjMRV2PFyANkhkWTqp2WdDJVB+rf1Cr8wMvPHOpO8dAuSdg5arBVPgGIr++6Q6yODzBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:09:57.533611Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.02961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a70963dec9792553c73b92849dd3ca7594a8213afddb7d58631884a5547b918c","sha256:60502782373949aec9e95e7a6b03a439ee0e2d31f8c82141e138f070784eac53"],"state_sha256":"83e6f0fe5dfb10c4d47220a2549cb054be30311ce5f0dd2ad6c09129ed10eb3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hbT+baohpasJtCboc0V7e/IFzWyNvfOxeYEx4Rbfh7/Ghbj1v5aW8xoGDcTJV994l3wi8gOM4RZ5W6EF89GlDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T23:24:14.282796Z","bundle_sha256":"fe84deaa2df6c8e8598d40b19f57551b482a434e7be555670925a5998cdc6f40"}}