{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:JX4FVEFMIJE2W2GVD4D2V5R3AB","short_pith_number":"pith:JX4FVEFM","canonical_record":{"source":{"id":"2606.02549","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-01T17:49:36Z","cross_cats_sorted":["physics.atom-ph","physics.comp-ph"],"title_canon_sha256":"a491156725c67f7afaf11bb77470f408f82c7841b4a08a79f4065bdabecbba22","abstract_canon_sha256":"823fe3997a249d253cbde18057c1d0fa98f6a6bd83f5a305f4f681ae15f825c1"},"schema_version":"1.0"},"canonical_sha256":"4df85a90ac4249ab68d51f07aaf63b005f861e69e02379d2b785cd1bc83a2bad","source":{"kind":"arxiv","id":"2606.02549","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.02549","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"arxiv_version","alias_value":"2606.02549v1","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.02549","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"pith_short_12","alias_value":"JX4FVEFMIJE2","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"pith_short_16","alias_value":"JX4FVEFMIJE2W2GV","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"pith_short_8","alias_value":"JX4FVEFM","created_at":"2026-06-02T03:05:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:JX4FVEFMIJE2W2GVD4D2V5R3AB","target":"record","payload":{"canonical_record":{"source":{"id":"2606.02549","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-01T17:49:36Z","cross_cats_sorted":["physics.atom-ph","physics.comp-ph"],"title_canon_sha256":"a491156725c67f7afaf11bb77470f408f82c7841b4a08a79f4065bdabecbba22","abstract_canon_sha256":"823fe3997a249d253cbde18057c1d0fa98f6a6bd83f5a305f4f681ae15f825c1"},"schema_version":"1.0"},"canonical_sha256":"4df85a90ac4249ab68d51f07aaf63b005f861e69e02379d2b785cd1bc83a2bad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-02T03:05:09.346390Z","signature_b64":"9hjMgpqlO6r7XuT7cq3ziEYNyKKWRQBlhdb5zOw2lOmID1080lh+7bXN6+FZvXTq+GhPkIhYIgPcT7HAKkZcAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4df85a90ac4249ab68d51f07aaf63b005f861e69e02379d2b785cd1bc83a2bad","last_reissued_at":"2026-06-02T03:05:09.345974Z","signature_status":"signed_v1","first_computed_at":"2026-06-02T03:05:09.345974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.02549","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":"2026-06-02T03:05:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xeGCpUlKOngTB0XPIoeRqigkq8zR8b0k8iirNTCjylpgsq3aKnKt9O9ys9obMfM3QOeybmmB426BBTUErs0/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T02:44:48.184914Z"},"content_sha256":"f57ce8e3ec07d2f44a91371ec33cb2e3a9bd6d79f95c1f8430bf02581f0e20fa","schema_version":"1.0","event_id":"sha256:f57ce8e3ec07d2f44a91371ec33cb2e3a9bd6d79f95c1f8430bf02581f0e20fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:JX4FVEFMIJE2W2GVD4D2V5R3AB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diagrammatic Monte Carlo for positron-molecule many-body theory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph","physics.comp-ph"],"primary_cat":"physics.chem-ph","authors_text":"D. G. Green, S. K. Gregg, T. A. Scott","submitted_at":"2026-06-01T17:49:36Z","abstract_excerpt":"A diagrammatic Monte Carlo evaluation of the ladder series contributions to the correlation potential (self energy) of a positron in the field of a molecule is presented. The $GW$@TDHF, virtual-positronium ($T$-matrix), and positron-hole Goldstone ladder series contributions are stochastically sampled order-by-order within the Tamm-Dancoff approximation, which is exact for the latter two classes, with Ces{\\'a}ro-Riesz resummation used to extrapolate to infinite order. Gaussian bases are employed and Coulomb matrix elements are represented via density fitting, with the three centre integrals th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.02549","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/2606.02549/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":"2026-06-02T03:05:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TZpQta5b4iUuXowrpJSrGSVD3zbSGGjV1hn7K+AA1b2nEnL4TRbHSIqsxQWS+F4SLQcXAeo0Toc+faMvh11BAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T02:44:48.185564Z"},"content_sha256":"22d32db01b5bd8c71c0f75610b5675d859842fe4714238e9a9be6bdcf47a78cf","schema_version":"1.0","event_id":"sha256:22d32db01b5bd8c71c0f75610b5675d859842fe4714238e9a9be6bdcf47a78cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB/bundle.json","state_url":"https://pith.science/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB/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":"2026-06-30T02:44:48Z","links":{"resolver":"https://pith.science/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB","bundle":"https://pith.science/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB/bundle.json","state":"https://pith.science/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JX4FVEFMIJE2W2GVD4D2V5R3AB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:JX4FVEFMIJE2W2GVD4D2V5R3AB","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":"823fe3997a249d253cbde18057c1d0fa98f6a6bd83f5a305f4f681ae15f825c1","cross_cats_sorted":["physics.atom-ph","physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-01T17:49:36Z","title_canon_sha256":"a491156725c67f7afaf11bb77470f408f82c7841b4a08a79f4065bdabecbba22"},"schema_version":"1.0","source":{"id":"2606.02549","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.02549","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"arxiv_version","alias_value":"2606.02549v1","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.02549","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"pith_short_12","alias_value":"JX4FVEFMIJE2","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"pith_short_16","alias_value":"JX4FVEFMIJE2W2GV","created_at":"2026-06-02T03:05:09Z"},{"alias_kind":"pith_short_8","alias_value":"JX4FVEFM","created_at":"2026-06-02T03:05:09Z"}],"graph_snapshots":[{"event_id":"sha256:22d32db01b5bd8c71c0f75610b5675d859842fe4714238e9a9be6bdcf47a78cf","target":"graph","created_at":"2026-06-02T03:05:09Z","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/2606.02549/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A diagrammatic Monte Carlo evaluation of the ladder series contributions to the correlation potential (self energy) of a positron in the field of a molecule is presented. The $GW$@TDHF, virtual-positronium ($T$-matrix), and positron-hole Goldstone ladder series contributions are stochastically sampled order-by-order within the Tamm-Dancoff approximation, which is exact for the latter two classes, with Ces{\\'a}ro-Riesz resummation used to extrapolate to infinite order. Gaussian bases are employed and Coulomb matrix elements are represented via density fitting, with the three centre integrals th","authors_text":"D. G. Green, S. K. Gregg, T. A. Scott","cross_cats":["physics.atom-ph","physics.comp-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-01T17:49:36Z","title":"Diagrammatic Monte Carlo for positron-molecule many-body theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.02549","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:f57ce8e3ec07d2f44a91371ec33cb2e3a9bd6d79f95c1f8430bf02581f0e20fa","target":"record","created_at":"2026-06-02T03:05:09Z","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":"823fe3997a249d253cbde18057c1d0fa98f6a6bd83f5a305f4f681ae15f825c1","cross_cats_sorted":["physics.atom-ph","physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-01T17:49:36Z","title_canon_sha256":"a491156725c67f7afaf11bb77470f408f82c7841b4a08a79f4065bdabecbba22"},"schema_version":"1.0","source":{"id":"2606.02549","kind":"arxiv","version":1}},"canonical_sha256":"4df85a90ac4249ab68d51f07aaf63b005f861e69e02379d2b785cd1bc83a2bad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4df85a90ac4249ab68d51f07aaf63b005f861e69e02379d2b785cd1bc83a2bad","first_computed_at":"2026-06-02T03:05:09.345974Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-02T03:05:09.345974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9hjMgpqlO6r7XuT7cq3ziEYNyKKWRQBlhdb5zOw2lOmID1080lh+7bXN6+FZvXTq+GhPkIhYIgPcT7HAKkZcAQ==","signature_status":"signed_v1","signed_at":"2026-06-02T03:05:09.346390Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.02549","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f57ce8e3ec07d2f44a91371ec33cb2e3a9bd6d79f95c1f8430bf02581f0e20fa","sha256:22d32db01b5bd8c71c0f75610b5675d859842fe4714238e9a9be6bdcf47a78cf"],"state_sha256":"045a41c9a27cd987ad2b97b45e97cb0771c47ecc4965f33db7f37fcdbdd141a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2AqblNE++9E83gUnxvnJ/mtAuqtbhZqUrJnlRCBWduivI8hgP03K9BjgcmNJ7RehEbZQnf8che7+7U/8HcmlCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T02:44:48.189639Z","bundle_sha256":"15e88af8af7a4250ce80d846eb84e412b4253cabecc741523a06646a7773105b"}}