{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:SPIJZBPZKAXGYTL3DUMVR7Q3AT","short_pith_number":"pith:SPIJZBPZ","canonical_record":{"source":{"id":"nucl-th/9911046","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1999-11-15T09:09:12Z","cross_cats_sorted":[],"title_canon_sha256":"90d17e9776a8196cf6481aec2059c517578b30687055eb66aa0eaaeedb7c4c3a","abstract_canon_sha256":"1cdc75435255489d0d242d6d150cc63254f8510c8e0352d083b733f9a0a0443d"},"schema_version":"1.0"},"canonical_sha256":"93d09c85f9502e6c4d7b1d1958fe1b04c7083bb8478e7cf4eb8bd34061f7c92d","source":{"kind":"arxiv","id":"nucl-th/9911046","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9911046","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9911046v1","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9911046","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"pith_short_12","alias_value":"SPIJZBPZKAXG","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"pith_short_16","alias_value":"SPIJZBPZKAXGYTL3","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"pith_short_8","alias_value":"SPIJZBPZ","created_at":"2026-07-04T16:15:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:SPIJZBPZKAXGYTL3DUMVR7Q3AT","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-th/9911046","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-th","submitted_at":"1999-11-15T09:09:12Z","cross_cats_sorted":[],"title_canon_sha256":"90d17e9776a8196cf6481aec2059c517578b30687055eb66aa0eaaeedb7c4c3a","abstract_canon_sha256":"1cdc75435255489d0d242d6d150cc63254f8510c8e0352d083b733f9a0a0443d"},"schema_version":"1.0"},"canonical_sha256":"93d09c85f9502e6c4d7b1d1958fe1b04c7083bb8478e7cf4eb8bd34061f7c92d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:15:29.560617Z","signature_b64":"5Cw76NPerxIeIOexTYMI7lwlNTduyQwiHLQiFvDC21+GlRPkSbenJ0EVYkcBqciRVMyrPwRRMqQuRJkgJTSuAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"93d09c85f9502e6c4d7b1d1958fe1b04c7083bb8478e7cf4eb8bd34061f7c92d","last_reissued_at":"2026-07-04T16:15:29.560192Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:15:29.560192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-th/9911046","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":"2026-07-04T16:15:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"he88bCl99MiYuAwZlJdyMqBqEBTIwor/yieQgJUeY6DBJx8Ai0X7ukq5odE6R0gLs3R+l3HvxUY/zjGSnWdaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T03:57:57.061596Z"},"content_sha256":"afcb3b79b6df7b05042f9bb6f1fcb679f051d64d575c8b4f5d9db78e3adf9bcd","schema_version":"1.0","event_id":"sha256:afcb3b79b6df7b05042f9bb6f1fcb679f051d64d575c8b4f5d9db78e3adf9bcd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:SPIJZBPZKAXGYTL3DUMVR7Q3AT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quark mean field model for nuclear matter and finite nuclei","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"H. Shen, H. Toki","submitted_at":"1999-11-15T09:09:12Z","abstract_excerpt":"We study nuclear matter and finite nuclei in terms of the quark mean field (QMF) model, in which we describe the nucleon using the constituent quark model. The meson mean fields, in particular the sigma meson, created by other nucleons act on quarks inside a nucleon and change the nucleon properties in nuclear medium. The QMF model predicts an increasing size of the nucleon as well as a reduction of the nucleon mass in the nuclear environment. The present model is applied to study the properties of finite nuclei after fixing all the parameters by the nuclear matter properties, and it is found "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9911046","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/nucl-th/9911046/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":"2026-07-04T16:15:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g8djkHUWfffgP7Hi2ZilMRNJpI9kii/qrKL+zFvA/JSovXEt/JWSPA+0a4m2NFAjVsoA66XuMwXjgSn2MYHQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T03:57:57.062187Z"},"content_sha256":"fa7225a4316fbfad89b97aefc8b5b4b6212c3139051819ff3c4dfa0ea1cb2d55","schema_version":"1.0","event_id":"sha256:fa7225a4316fbfad89b97aefc8b5b4b6212c3139051819ff3c4dfa0ea1cb2d55"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT/bundle.json","state_url":"https://pith.science/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT/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":"2026-08-04T03:57:57Z","links":{"resolver":"https://pith.science/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT","bundle":"https://pith.science/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT/bundle.json","state":"https://pith.science/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SPIJZBPZKAXGYTL3DUMVR7Q3AT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:SPIJZBPZKAXGYTL3DUMVR7Q3AT","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":"1cdc75435255489d0d242d6d150cc63254f8510c8e0352d083b733f9a0a0443d","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1999-11-15T09:09:12Z","title_canon_sha256":"90d17e9776a8196cf6481aec2059c517578b30687055eb66aa0eaaeedb7c4c3a"},"schema_version":"1.0","source":{"id":"nucl-th/9911046","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-th/9911046","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-th/9911046v1","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-th/9911046","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"pith_short_12","alias_value":"SPIJZBPZKAXG","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"pith_short_16","alias_value":"SPIJZBPZKAXGYTL3","created_at":"2026-07-04T16:15:29Z"},{"alias_kind":"pith_short_8","alias_value":"SPIJZBPZ","created_at":"2026-07-04T16:15:29Z"}],"graph_snapshots":[{"event_id":"sha256:fa7225a4316fbfad89b97aefc8b5b4b6212c3139051819ff3c4dfa0ea1cb2d55","target":"graph","created_at":"2026-07-04T16:15:29Z","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/nucl-th/9911046/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study nuclear matter and finite nuclei in terms of the quark mean field (QMF) model, in which we describe the nucleon using the constituent quark model. The meson mean fields, in particular the sigma meson, created by other nucleons act on quarks inside a nucleon and change the nucleon properties in nuclear medium. The QMF model predicts an increasing size of the nucleon as well as a reduction of the nucleon mass in the nuclear environment. The present model is applied to study the properties of finite nuclei after fixing all the parameters by the nuclear matter properties, and it is found ","authors_text":"H. Shen, H. Toki","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-th","submitted_at":"1999-11-15T09:09:12Z","title":"Quark mean field model for nuclear matter and finite nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-th/9911046","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:afcb3b79b6df7b05042f9bb6f1fcb679f051d64d575c8b4f5d9db78e3adf9bcd","target":"record","created_at":"2026-07-04T16:15:29Z","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":"1cdc75435255489d0d242d6d150cc63254f8510c8e0352d083b733f9a0a0443d","cross_cats_sorted":[],"license":"","primary_cat":"nucl-th","submitted_at":"1999-11-15T09:09:12Z","title_canon_sha256":"90d17e9776a8196cf6481aec2059c517578b30687055eb66aa0eaaeedb7c4c3a"},"schema_version":"1.0","source":{"id":"nucl-th/9911046","kind":"arxiv","version":1}},"canonical_sha256":"93d09c85f9502e6c4d7b1d1958fe1b04c7083bb8478e7cf4eb8bd34061f7c92d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93d09c85f9502e6c4d7b1d1958fe1b04c7083bb8478e7cf4eb8bd34061f7c92d","first_computed_at":"2026-07-04T16:15:29.560192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:15:29.560192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Cw76NPerxIeIOexTYMI7lwlNTduyQwiHLQiFvDC21+GlRPkSbenJ0EVYkcBqciRVMyrPwRRMqQuRJkgJTSuAw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:15:29.560617Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-th/9911046","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:afcb3b79b6df7b05042f9bb6f1fcb679f051d64d575c8b4f5d9db78e3adf9bcd","sha256:fa7225a4316fbfad89b97aefc8b5b4b6212c3139051819ff3c4dfa0ea1cb2d55"],"state_sha256":"6d6c3d8bcdf10af114a58f578608409ef06835dd54d0d6fc2abca3b919c0402d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MFbpb8p5wD5evbveWnTzzYhxgMztZ0NGEzG6Y/OGYqmytHKDl5Gfi9lWTo4QxWFUE0sgTCPkmS9JRi115lzuAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T03:57:57.065991Z","bundle_sha256":"3d613d64e8c73b09b88669fab715b9b9caf699e9e09ae8ed9e6b5a30ff81eb93"}}