{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GG6GUKWEPK6TOA5YKOVKAXJCZE","short_pith_number":"pith:GG6GUKWE","canonical_record":{"source":{"id":"1709.07075","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-09-20T20:32:41Z","cross_cats_sorted":[],"title_canon_sha256":"838cece74714f3101b84789b46023a0a7bd3759d9d1ed7c9b3a947df619774a8","abstract_canon_sha256":"fa22029c1b6422cda794ba625bc4a9fdc3f390574eb11ab028956164ec791a10"},"schema_version":"1.0"},"canonical_sha256":"31bc6a2ac47abd3703b853aaa05d22c91692272921c7de1acaa3620fcaaac0c2","source":{"kind":"arxiv","id":"1709.07075","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.07075","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1709.07075v2","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.07075","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"GG6GUKWEPK6T","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"GG6GUKWEPK6TOA5Y","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"GG6GUKWE","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GG6GUKWEPK6TOA5YKOVKAXJCZE","target":"record","payload":{"canonical_record":{"source":{"id":"1709.07075","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-09-20T20:32:41Z","cross_cats_sorted":[],"title_canon_sha256":"838cece74714f3101b84789b46023a0a7bd3759d9d1ed7c9b3a947df619774a8","abstract_canon_sha256":"fa22029c1b6422cda794ba625bc4a9fdc3f390574eb11ab028956164ec791a10"},"schema_version":"1.0"},"canonical_sha256":"31bc6a2ac47abd3703b853aaa05d22c91692272921c7de1acaa3620fcaaac0c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:10.917765Z","signature_b64":"IWiUkpFGz7CiMlAZWaLRLr8rTo+F0yVlLGhsvWGNvkwuWWuo+N77ap4TWW1FBuSFyFHf9HuT5xhy5zWVhhJ6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31bc6a2ac47abd3703b853aaa05d22c91692272921c7de1acaa3620fcaaac0c2","last_reissued_at":"2026-05-18T00:21:10.917277Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:10.917277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.07075","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W6uMcqxYjZRXBosnO7FiC564nXG+1W3NSUmYjIqrBFHC4foPPX1QSwXE8iecXCFxXhftBA9MQb6+XdKE9+1ODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:25:19.440161Z"},"content_sha256":"c5f81ba8c9940e7a8ea83810120cad9b4ff7776f3e6340d67dec2e8d80c0f6e1","schema_version":"1.0","event_id":"sha256:c5f81ba8c9940e7a8ea83810120cad9b4ff7776f3e6340d67dec2e8d80c0f6e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GG6GUKWEPK6TOA5YKOVKAXJCZE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A QM/MM equation-of-motion coupled-cluster approach for predicting semiconductor color-center structure and emission frequencies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Jesse J. Lutz, Larry W. Burggraf, Xiaofeng F. Duan","submitted_at":"2017-09-20T20:32:41Z","abstract_excerpt":"Valence excitation spectra are computed for all deep-center silicon-vacancy defect types in 3C, 4H, and 6H silicon carbide (SiC) and comparisons are made with literature photoluminescence measurements. Nuclear geometries surrounding the defect centers are optimized within a Gaussian basis-set framework using many-body perturbation theory or density functional theory (DFT) methods, with computational expenses minimized by a QM/MM technique called SIMOMM. Vertical excitation energies are subsequently obtained by applying excitation-energy, electron-attached, and ionized equation-of-motion couple"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.07075","kind":"arxiv","version":2},"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":"2026-05-18T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V2bDSdrHcadAipaVdBTDmRqaH5OuwKmaKXkvRnF64fY/4fEagygIHyeE6ZXf3g+2WSeB72FX7uKpZ7vOz1FlBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:25:19.440797Z"},"content_sha256":"d46ff0f0d9bfc85532b6681798754bcb666aa03fa0621f73346f1d99ca966fa6","schema_version":"1.0","event_id":"sha256:d46ff0f0d9bfc85532b6681798754bcb666aa03fa0621f73346f1d99ca966fa6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE/bundle.json","state_url":"https://pith.science/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE/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":"2026-06-02T15:25:19Z","links":{"resolver":"https://pith.science/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE","bundle":"https://pith.science/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE/bundle.json","state":"https://pith.science/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GG6GUKWEPK6TOA5YKOVKAXJCZE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GG6GUKWEPK6TOA5YKOVKAXJCZE","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":"fa22029c1b6422cda794ba625bc4a9fdc3f390574eb11ab028956164ec791a10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-09-20T20:32:41Z","title_canon_sha256":"838cece74714f3101b84789b46023a0a7bd3759d9d1ed7c9b3a947df619774a8"},"schema_version":"1.0","source":{"id":"1709.07075","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.07075","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1709.07075v2","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.07075","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"GG6GUKWEPK6T","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"GG6GUKWEPK6TOA5Y","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"GG6GUKWE","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:d46ff0f0d9bfc85532b6681798754bcb666aa03fa0621f73346f1d99ca966fa6","target":"graph","created_at":"2026-05-18T00:21:10Z","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":"Valence excitation spectra are computed for all deep-center silicon-vacancy defect types in 3C, 4H, and 6H silicon carbide (SiC) and comparisons are made with literature photoluminescence measurements. Nuclear geometries surrounding the defect centers are optimized within a Gaussian basis-set framework using many-body perturbation theory or density functional theory (DFT) methods, with computational expenses minimized by a QM/MM technique called SIMOMM. Vertical excitation energies are subsequently obtained by applying excitation-energy, electron-attached, and ionized equation-of-motion couple","authors_text":"Jesse J. Lutz, Larry W. Burggraf, Xiaofeng F. Duan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-09-20T20:32:41Z","title":"A QM/MM equation-of-motion coupled-cluster approach for predicting semiconductor color-center structure and emission frequencies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.07075","kind":"arxiv","version":2},"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:c5f81ba8c9940e7a8ea83810120cad9b4ff7776f3e6340d67dec2e8d80c0f6e1","target":"record","created_at":"2026-05-18T00:21:10Z","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":"fa22029c1b6422cda794ba625bc4a9fdc3f390574eb11ab028956164ec791a10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-09-20T20:32:41Z","title_canon_sha256":"838cece74714f3101b84789b46023a0a7bd3759d9d1ed7c9b3a947df619774a8"},"schema_version":"1.0","source":{"id":"1709.07075","kind":"arxiv","version":2}},"canonical_sha256":"31bc6a2ac47abd3703b853aaa05d22c91692272921c7de1acaa3620fcaaac0c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31bc6a2ac47abd3703b853aaa05d22c91692272921c7de1acaa3620fcaaac0c2","first_computed_at":"2026-05-18T00:21:10.917277Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:10.917277Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IWiUkpFGz7CiMlAZWaLRLr8rTo+F0yVlLGhsvWGNvkwuWWuo+N77ap4TWW1FBuSFyFHf9HuT5xhy5zWVhhJ6BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:10.917765Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.07075","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5f81ba8c9940e7a8ea83810120cad9b4ff7776f3e6340d67dec2e8d80c0f6e1","sha256:d46ff0f0d9bfc85532b6681798754bcb666aa03fa0621f73346f1d99ca966fa6"],"state_sha256":"c8a1d426069be6a24e5e8de6330290aa361a0d8bef03e60f74d4178725623967"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IpWgA8Y8ttN544Xc0+sOJPVlBWyUEc7+RpAQhdlH2xi8/vp9EtI4Xo8ZsuYNJoElCm98tBf2sZomTPcL/LmpAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:25:19.444342Z","bundle_sha256":"a7c2dae4758d2199405c15d225e3158781ceddec8092443856b9837a3c0368c7"}}