{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PE6Z5JWGNHDKO6YFZUJGQUT3NJ","short_pith_number":"pith:PE6Z5JWG","canonical_record":{"source":{"id":"1111.4429","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-18T17:05:38Z","cross_cats_sorted":[],"title_canon_sha256":"72377147baa0920aa6522747bb1fb92416b085aaa1ddca5c4194e953d6440fdf","abstract_canon_sha256":"3f086dbd877a94e2b32824ef9b8ab5d660914272873138676d2efdb8f9a10bf8"},"schema_version":"1.0"},"canonical_sha256":"793d9ea6c669c6a77b05cd1268527b6a70fcf6749d964c5bfe9fd105a30abdc3","source":{"kind":"arxiv","id":"1111.4429","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.4429","created_at":"2026-05-18T01:23:48Z"},{"alias_kind":"arxiv_version","alias_value":"1111.4429v3","created_at":"2026-05-18T01:23:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.4429","created_at":"2026-05-18T01:23:48Z"},{"alias_kind":"pith_short_12","alias_value":"PE6Z5JWGNHDK","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PE6Z5JWGNHDKO6YF","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PE6Z5JWG","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PE6Z5JWGNHDKO6YFZUJGQUT3NJ","target":"record","payload":{"canonical_record":{"source":{"id":"1111.4429","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-18T17:05:38Z","cross_cats_sorted":[],"title_canon_sha256":"72377147baa0920aa6522747bb1fb92416b085aaa1ddca5c4194e953d6440fdf","abstract_canon_sha256":"3f086dbd877a94e2b32824ef9b8ab5d660914272873138676d2efdb8f9a10bf8"},"schema_version":"1.0"},"canonical_sha256":"793d9ea6c669c6a77b05cd1268527b6a70fcf6749d964c5bfe9fd105a30abdc3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:48.504305Z","signature_b64":"ppY0fsQT5DcdubXsny+Zt4PTLCaBsNrzndTLbwiUYgdra5zwYB6AEDduAaDXX06FUcrJWt2LzR3j/Oq3ZQBrBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"793d9ea6c669c6a77b05cd1268527b6a70fcf6749d964c5bfe9fd105a30abdc3","last_reissued_at":"2026-05-18T01:23:48.503608Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:48.503608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.4429","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":"2026-05-18T01:23:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qCQvZbYGNMNhZyWDC91Qwh1W4pgLJitbv13C74m042VP/WfZzsGBJ2ExhUup+0PxYtYqALGkcZBuLNZk+SAQDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:59:36.655772Z"},"content_sha256":"3e628b52cc483bff3e2cde4e54131befe6a5acfbc24e3f4f59042cb5df72f0a0","schema_version":"1.0","event_id":"sha256:3e628b52cc483bff3e2cde4e54131befe6a5acfbc24e3f4f59042cb5df72f0a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PE6Z5JWGNHDKO6YFZUJGQUT3NJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"BerkeleyGW: A Massively Parallel Computer Package for the Calculation of the Quasiparticle and Optical Properties of Materials and Nanostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"David A. Strubbe, Georgy Samsonidze, Jack Deslippe, Manish Jain, Marvin L. Cohen, Steven G. Louie","submitted_at":"2011-11-18T17:05:38Z","abstract_excerpt":"BerkeleyGW is a massively parallel computational package for electron excited-state properties that is based on the many-body perturbation theory employing the ab initio GW and GW plus Bethe-Salpeter equation methodology. It can be used in conjunction with many density-functional theory codes for ground-state properties, including PARATEC, PARSEC, Quantum ESPRESSO, OCTOPUS and SIESTA. The package can be used to compute the electronic and optical properties of a wide variety of material systems from bulk semiconductors and metals to nanostructured materials and molecules. The package scales to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.4429","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":"2026-05-18T01:23:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L8lf+qqOUVKS4LMA3CjgT//lNuOh3C0B48F7d/IWQTB3CjRMK4+2XTVZQku2DeKZftS/VBB4Z2HoiwjOEiKuAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:59:36.656113Z"},"content_sha256":"23d0dde13ac96e965ec9852297cfbca3d694200256e755877c6807d445d59162","schema_version":"1.0","event_id":"sha256:23d0dde13ac96e965ec9852297cfbca3d694200256e755877c6807d445d59162"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ/bundle.json","state_url":"https://pith.science/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ/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":"2026-06-03T22:59:36Z","links":{"resolver":"https://pith.science/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ","bundle":"https://pith.science/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ/bundle.json","state":"https://pith.science/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PE6Z5JWGNHDKO6YFZUJGQUT3NJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PE6Z5JWGNHDKO6YFZUJGQUT3NJ","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":"3f086dbd877a94e2b32824ef9b8ab5d660914272873138676d2efdb8f9a10bf8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-18T17:05:38Z","title_canon_sha256":"72377147baa0920aa6522747bb1fb92416b085aaa1ddca5c4194e953d6440fdf"},"schema_version":"1.0","source":{"id":"1111.4429","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.4429","created_at":"2026-05-18T01:23:48Z"},{"alias_kind":"arxiv_version","alias_value":"1111.4429v3","created_at":"2026-05-18T01:23:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.4429","created_at":"2026-05-18T01:23:48Z"},{"alias_kind":"pith_short_12","alias_value":"PE6Z5JWGNHDK","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PE6Z5JWGNHDKO6YF","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PE6Z5JWG","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:23d0dde13ac96e965ec9852297cfbca3d694200256e755877c6807d445d59162","target":"graph","created_at":"2026-05-18T01:23:48Z","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":"BerkeleyGW is a massively parallel computational package for electron excited-state properties that is based on the many-body perturbation theory employing the ab initio GW and GW plus Bethe-Salpeter equation methodology. It can be used in conjunction with many density-functional theory codes for ground-state properties, including PARATEC, PARSEC, Quantum ESPRESSO, OCTOPUS and SIESTA. The package can be used to compute the electronic and optical properties of a wide variety of material systems from bulk semiconductors and metals to nanostructured materials and molecules. The package scales to ","authors_text":"David A. Strubbe, Georgy Samsonidze, Jack Deslippe, Manish Jain, Marvin L. Cohen, Steven G. Louie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-18T17:05:38Z","title":"BerkeleyGW: A Massively Parallel Computer Package for the Calculation of the Quasiparticle and Optical Properties of Materials and Nanostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.4429","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":"sha256:3e628b52cc483bff3e2cde4e54131befe6a5acfbc24e3f4f59042cb5df72f0a0","target":"record","created_at":"2026-05-18T01:23:48Z","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":"3f086dbd877a94e2b32824ef9b8ab5d660914272873138676d2efdb8f9a10bf8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-18T17:05:38Z","title_canon_sha256":"72377147baa0920aa6522747bb1fb92416b085aaa1ddca5c4194e953d6440fdf"},"schema_version":"1.0","source":{"id":"1111.4429","kind":"arxiv","version":3}},"canonical_sha256":"793d9ea6c669c6a77b05cd1268527b6a70fcf6749d964c5bfe9fd105a30abdc3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"793d9ea6c669c6a77b05cd1268527b6a70fcf6749d964c5bfe9fd105a30abdc3","first_computed_at":"2026-05-18T01:23:48.503608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:48.503608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ppY0fsQT5DcdubXsny+Zt4PTLCaBsNrzndTLbwiUYgdra5zwYB6AEDduAaDXX06FUcrJWt2LzR3j/Oq3ZQBrBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:48.504305Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.4429","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e628b52cc483bff3e2cde4e54131befe6a5acfbc24e3f4f59042cb5df72f0a0","sha256:23d0dde13ac96e965ec9852297cfbca3d694200256e755877c6807d445d59162"],"state_sha256":"26c21b693af47b931bace0e5fe52fe12d646a9cad19cb9e902fa3187c39caa1f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1+Sp9+an+HhhcGH5luX0K4vZteRqcCHzw7EWVrXHn8wUIZanHw1UkpVzM9S4oEQPrjGrkd9Da82wpNBRrcBCBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:59:36.657994Z","bundle_sha256":"ecc8c21d8a4136229476c18c6b6c2ecda39a354cafc6bcce462312c84a35de90"}}