{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:JI37HSXYQTXIWHVEVYP4Y23ZGK","short_pith_number":"pith:JI37HSXY","canonical_record":{"source":{"id":"1610.06641","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-21T01:25:56Z","cross_cats_sorted":[],"title_canon_sha256":"c0db91110a632f3e4918382ec9006a80f8285b7758779813c3425339f60e74eb","abstract_canon_sha256":"74f471ebd2308c9b49b081f36ac796da40e0adf4f3a7956de0c049b9773359f5"},"schema_version":"1.0"},"canonical_sha256":"4a37f3caf884ee8b1ea4ae1fcc6b7932b218191616cfe829113d604c5c44dcb8","source":{"kind":"arxiv","id":"1610.06641","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06641","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06641v1","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06641","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"JI37HSXYQTXI","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JI37HSXYQTXIWHVE","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JI37HSXY","created_at":"2026-05-18T12:30:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:JI37HSXYQTXIWHVEVYP4Y23ZGK","target":"record","payload":{"canonical_record":{"source":{"id":"1610.06641","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-21T01:25:56Z","cross_cats_sorted":[],"title_canon_sha256":"c0db91110a632f3e4918382ec9006a80f8285b7758779813c3425339f60e74eb","abstract_canon_sha256":"74f471ebd2308c9b49b081f36ac796da40e0adf4f3a7956de0c049b9773359f5"},"schema_version":"1.0"},"canonical_sha256":"4a37f3caf884ee8b1ea4ae1fcc6b7932b218191616cfe829113d604c5c44dcb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:07.085280Z","signature_b64":"eXmT5IRfgtQf+vM4n3MPCZ4Zo4QrP9yOESt8g7q56RfFcR5kXmCxfNqucH1WduAFufMNKIBZ/S9XODAYzN7wDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a37f3caf884ee8b1ea4ae1fcc6b7932b218191616cfe829113d604c5c44dcb8","last_reissued_at":"2026-05-18T00:53:07.084919Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:07.084919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.06641","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":"2026-05-18T00:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e38X2X8W0g1x3YCAnAa8fqTdi/kYaB4IfgN3Qi9VA0YsJlAH25s5wHKoJsC2XMgStGYh2b7AUJWJPujz58pwCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:42:00.230962Z"},"content_sha256":"0cbc92dd8cc7d09ce960747581ec5bf3be1d87d689be49946072f66f9289ce3d","schema_version":"1.0","event_id":"sha256:0cbc92dd8cc7d09ce960747581ec5bf3be1d87d689be49946072f66f9289ce3d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:JI37HSXYQTXIWHVEVYP4Y23ZGK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-uniform sampling schemes of the Brillouin zone for many-electron perturbation-theory calculations in reduced dimensionality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Diana Y. Qiu, Felipe H. da Jornada, Steven G. Louie","submitted_at":"2016-10-21T01:25:56Z","abstract_excerpt":"First principles calculations based on many-electron perturbation theory methods, such as the \\textit{ab initio} GW and GW plus Bethe-Salpeter equation (GW-BSE) approach, are reliable ways to predict quasiparticle and optical properties of materials, respectively. However, these methods involve more care in treating the electron-electron interaction and are considerably more computationally demanding when applied to systems with reduced dimensionality, since the electronic confinement leads a slower convergence of sums over the Brillouin zone due to a much more complicated screening environmen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06641","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":""},"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":"2026-05-18T00:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LwBOW0WOkYd7ExguDe0LirdWTf97EQ667evIDFNbhGb9KLhm8rw++IKX5stscZ4MoXv/jU8k5d6s30LW7n7OBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:42:00.231324Z"},"content_sha256":"d9d330f7513311cca2a0c3b0d1a26e79b0c3854b59d13976716e4a957b8b6975","schema_version":"1.0","event_id":"sha256:d9d330f7513311cca2a0c3b0d1a26e79b0c3854b59d13976716e4a957b8b6975"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK/bundle.json","state_url":"https://pith.science/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK/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":"2026-05-28T17:42:00Z","links":{"resolver":"https://pith.science/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK","bundle":"https://pith.science/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK/bundle.json","state":"https://pith.science/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JI37HSXYQTXIWHVEVYP4Y23ZGK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:JI37HSXYQTXIWHVEVYP4Y23ZGK","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":"74f471ebd2308c9b49b081f36ac796da40e0adf4f3a7956de0c049b9773359f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-21T01:25:56Z","title_canon_sha256":"c0db91110a632f3e4918382ec9006a80f8285b7758779813c3425339f60e74eb"},"schema_version":"1.0","source":{"id":"1610.06641","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.06641","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1610.06641v1","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.06641","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"JI37HSXYQTXI","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"JI37HSXYQTXIWHVE","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"JI37HSXY","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:d9d330f7513311cca2a0c3b0d1a26e79b0c3854b59d13976716e4a957b8b6975","target":"graph","created_at":"2026-05-18T00:53:07Z","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":"First principles calculations based on many-electron perturbation theory methods, such as the \\textit{ab initio} GW and GW plus Bethe-Salpeter equation (GW-BSE) approach, are reliable ways to predict quasiparticle and optical properties of materials, respectively. However, these methods involve more care in treating the electron-electron interaction and are considerably more computationally demanding when applied to systems with reduced dimensionality, since the electronic confinement leads a slower convergence of sums over the Brillouin zone due to a much more complicated screening environmen","authors_text":"Diana Y. Qiu, Felipe H. da Jornada, Steven G. Louie","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-21T01:25:56Z","title":"Non-uniform sampling schemes of the Brillouin zone for many-electron perturbation-theory calculations in reduced dimensionality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.06641","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":"sha256:0cbc92dd8cc7d09ce960747581ec5bf3be1d87d689be49946072f66f9289ce3d","target":"record","created_at":"2026-05-18T00:53:07Z","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":"74f471ebd2308c9b49b081f36ac796da40e0adf4f3a7956de0c049b9773359f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-21T01:25:56Z","title_canon_sha256":"c0db91110a632f3e4918382ec9006a80f8285b7758779813c3425339f60e74eb"},"schema_version":"1.0","source":{"id":"1610.06641","kind":"arxiv","version":1}},"canonical_sha256":"4a37f3caf884ee8b1ea4ae1fcc6b7932b218191616cfe829113d604c5c44dcb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a37f3caf884ee8b1ea4ae1fcc6b7932b218191616cfe829113d604c5c44dcb8","first_computed_at":"2026-05-18T00:53:07.084919Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:07.084919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eXmT5IRfgtQf+vM4n3MPCZ4Zo4QrP9yOESt8g7q56RfFcR5kXmCxfNqucH1WduAFufMNKIBZ/S9XODAYzN7wDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:07.085280Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.06641","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0cbc92dd8cc7d09ce960747581ec5bf3be1d87d689be49946072f66f9289ce3d","sha256:d9d330f7513311cca2a0c3b0d1a26e79b0c3854b59d13976716e4a957b8b6975"],"state_sha256":"a1ad7e58adf3720c65742aeac4bda454c572693cab8cd8e45db5030c7f4e3074"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ChvuAaYHIeSZiFsvk9GIDaNcV8SQvHZw9yWFlHkr5VSxnNxtWPYWtb8QDTKSs78JjDXe1VGhDiv9dVBW5yrAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:42:00.233551Z","bundle_sha256":"0c127b82b5e32343b10e4eb91e6511225996aff7566adc8e3c1e9548e3266d59"}}