{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:2MO6S5SEWZ3PNEOA36YMOLK27H","short_pith_number":"pith:2MO6S5SE","canonical_record":{"source":{"id":"1608.07375","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-26T07:29:37Z","cross_cats_sorted":[],"title_canon_sha256":"1ecf057a0f9a782baee79c8a347941781d7a8ae8b4eb0e86864a2453018649b9","abstract_canon_sha256":"89999e4791ef2896e50d02f7a87e4e20e2b730c74fcddddafd514247bb7af784"},"schema_version":"1.0"},"canonical_sha256":"d31de97644b676f691c0dfb0c72d5af9e7c742c0366c60dee6f1a8d20e18195f","source":{"kind":"arxiv","id":"1608.07375","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.07375","created_at":"2026-05-18T01:07:19Z"},{"alias_kind":"arxiv_version","alias_value":"1608.07375v1","created_at":"2026-05-18T01:07:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.07375","created_at":"2026-05-18T01:07:19Z"},{"alias_kind":"pith_short_12","alias_value":"2MO6S5SEWZ3P","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2MO6S5SEWZ3PNEOA","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2MO6S5SE","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:2MO6S5SEWZ3PNEOA36YMOLK27H","target":"record","payload":{"canonical_record":{"source":{"id":"1608.07375","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-26T07:29:37Z","cross_cats_sorted":[],"title_canon_sha256":"1ecf057a0f9a782baee79c8a347941781d7a8ae8b4eb0e86864a2453018649b9","abstract_canon_sha256":"89999e4791ef2896e50d02f7a87e4e20e2b730c74fcddddafd514247bb7af784"},"schema_version":"1.0"},"canonical_sha256":"d31de97644b676f691c0dfb0c72d5af9e7c742c0366c60dee6f1a8d20e18195f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:19.995617Z","signature_b64":"F4Z8/ZHic7ua1oVenokWp9VoQnnjntzJ2KXfZQ2PlDpXfDn5z62iPJ0/qWWOx3yEJaMrA1K0Pyq13e13pinVCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d31de97644b676f691c0dfb0c72d5af9e7c742c0366c60dee6f1a8d20e18195f","last_reissued_at":"2026-05-18T01:07:19.995122Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:19.995122Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.07375","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":"2026-05-18T01:07:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aNYgBMXO4z29Zk0rPcUwI2T5Izhn6Q62qazKnMxt44A/4SHBnts2DrU1VkVTStYsR6H9kSxh+Af9+L7BCkQ/Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:35:35.853096Z"},"content_sha256":"68365f1411113e1cbdced4b6f64e732623809e4ab7fc05ead2ec7af17d0ae1f1","schema_version":"1.0","event_id":"sha256:68365f1411113e1cbdced4b6f64e732623809e4ab7fc05ead2ec7af17d0ae1f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:2MO6S5SEWZ3PNEOA36YMOLK27H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Raman spectroscopic features of the neutral vacancy in diamond from ab initio quantum-mechanical calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Erba, A. Zelferino, J. Baima, P. Olivero, R. Dovesi","submitted_at":"2016-08-26T07:29:37Z","abstract_excerpt":"Quantum-mechanical ab initio calculations are performed to elucidate the vibrational spectroscopic features of a common irradiation-induced defect in diamond, i.e. the neutral vacancy. Raman spectra are computed analytically through a Coupled-Perturbed-Hartree-Fock/Kohn-Sham approach as a function of both different defect spin states and defect concentration. The experimental Raman features of defective diamond located in the 400-1300 cm-1 spectral range, i.e. below the first-order line of pristine diamond at 1332 cm-1 , are well reproduced, thus corroborating the picture according to which, a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.07375","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":"2026-05-18T01:07:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gbclWMA1VvikCECCbA22rspMQ1hKzilxrNuOXRH2qR3aVGhmX4jA0zOIdPBt4X2GTTg7SOIl+UTQKO1KRH4jCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:35:35.853478Z"},"content_sha256":"b8208f93455c3ab4f140888686d66379912af9065647ea32cfc58024bc2d8699","schema_version":"1.0","event_id":"sha256:b8208f93455c3ab4f140888686d66379912af9065647ea32cfc58024bc2d8699"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2MO6S5SEWZ3PNEOA36YMOLK27H/bundle.json","state_url":"https://pith.science/pith/2MO6S5SEWZ3PNEOA36YMOLK27H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2MO6S5SEWZ3PNEOA36YMOLK27H/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":"2026-06-01T03:35:35Z","links":{"resolver":"https://pith.science/pith/2MO6S5SEWZ3PNEOA36YMOLK27H","bundle":"https://pith.science/pith/2MO6S5SEWZ3PNEOA36YMOLK27H/bundle.json","state":"https://pith.science/pith/2MO6S5SEWZ3PNEOA36YMOLK27H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2MO6S5SEWZ3PNEOA36YMOLK27H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:2MO6S5SEWZ3PNEOA36YMOLK27H","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":"89999e4791ef2896e50d02f7a87e4e20e2b730c74fcddddafd514247bb7af784","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-26T07:29:37Z","title_canon_sha256":"1ecf057a0f9a782baee79c8a347941781d7a8ae8b4eb0e86864a2453018649b9"},"schema_version":"1.0","source":{"id":"1608.07375","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.07375","created_at":"2026-05-18T01:07:19Z"},{"alias_kind":"arxiv_version","alias_value":"1608.07375v1","created_at":"2026-05-18T01:07:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.07375","created_at":"2026-05-18T01:07:19Z"},{"alias_kind":"pith_short_12","alias_value":"2MO6S5SEWZ3P","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2MO6S5SEWZ3PNEOA","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2MO6S5SE","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:b8208f93455c3ab4f140888686d66379912af9065647ea32cfc58024bc2d8699","target":"graph","created_at":"2026-05-18T01:07:19Z","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":"Quantum-mechanical ab initio calculations are performed to elucidate the vibrational spectroscopic features of a common irradiation-induced defect in diamond, i.e. the neutral vacancy. Raman spectra are computed analytically through a Coupled-Perturbed-Hartree-Fock/Kohn-Sham approach as a function of both different defect spin states and defect concentration. The experimental Raman features of defective diamond located in the 400-1300 cm-1 spectral range, i.e. below the first-order line of pristine diamond at 1332 cm-1 , are well reproduced, thus corroborating the picture according to which, a","authors_text":"A. Erba, A. Zelferino, J. Baima, P. Olivero, R. Dovesi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-26T07:29:37Z","title":"Raman spectroscopic features of the neutral vacancy in diamond from ab initio quantum-mechanical calculations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.07375","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":"sha256:68365f1411113e1cbdced4b6f64e732623809e4ab7fc05ead2ec7af17d0ae1f1","target":"record","created_at":"2026-05-18T01:07:19Z","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":"89999e4791ef2896e50d02f7a87e4e20e2b730c74fcddddafd514247bb7af784","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-26T07:29:37Z","title_canon_sha256":"1ecf057a0f9a782baee79c8a347941781d7a8ae8b4eb0e86864a2453018649b9"},"schema_version":"1.0","source":{"id":"1608.07375","kind":"arxiv","version":1}},"canonical_sha256":"d31de97644b676f691c0dfb0c72d5af9e7c742c0366c60dee6f1a8d20e18195f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d31de97644b676f691c0dfb0c72d5af9e7c742c0366c60dee6f1a8d20e18195f","first_computed_at":"2026-05-18T01:07:19.995122Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:19.995122Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F4Z8/ZHic7ua1oVenokWp9VoQnnjntzJ2KXfZQ2PlDpXfDn5z62iPJ0/qWWOx3yEJaMrA1K0Pyq13e13pinVCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:19.995617Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.07375","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:68365f1411113e1cbdced4b6f64e732623809e4ab7fc05ead2ec7af17d0ae1f1","sha256:b8208f93455c3ab4f140888686d66379912af9065647ea32cfc58024bc2d8699"],"state_sha256":"713d3c1d6abd3e120c1bfaf868f8d8faeb4daeb0d9c9e95e7e6ae65d968d884e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GCZM+CZGRqx0xPPbFI/J8WJ+G81iRtYb8ayAeR0JDDP9P8gpiRnUfcxC86Uc1g1Bh9DeReNvGN9QTcsJMKhMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T03:35:35.855580Z","bundle_sha256":"d25c0e57f2fb42d32505ef4f808ba2fa788875bd11236ba667cbcc2ff3b65f2f"}}