{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:RSWCORJKEBS3TPLMAU2UQIFSLM","short_pith_number":"pith:RSWCORJK","canonical_record":{"source":{"id":"1204.5367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-24T13:18:09Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"7b1b496fe85b3a92b5bf65822e2fa125be234fc4f9a4f17a06be6e43d2b39ca0","abstract_canon_sha256":"deaf7f5a72faf7fa93a6600bd74a7d8ce43a08e39080e7e7f22c8d34bbb5b4f3"},"schema_version":"1.0"},"canonical_sha256":"8cac27452a2065b9bd6c05354820b25b357c1cea31a2ed6a7d0238f794139318","source":{"kind":"arxiv","id":"1204.5367","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5367","created_at":"2026-05-18T03:56:35Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5367v1","created_at":"2026-05-18T03:56:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5367","created_at":"2026-05-18T03:56:35Z"},{"alias_kind":"pith_short_12","alias_value":"RSWCORJKEBS3","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RSWCORJKEBS3TPLM","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RSWCORJK","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:RSWCORJKEBS3TPLMAU2UQIFSLM","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-24T13:18:09Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"7b1b496fe85b3a92b5bf65822e2fa125be234fc4f9a4f17a06be6e43d2b39ca0","abstract_canon_sha256":"deaf7f5a72faf7fa93a6600bd74a7d8ce43a08e39080e7e7f22c8d34bbb5b4f3"},"schema_version":"1.0"},"canonical_sha256":"8cac27452a2065b9bd6c05354820b25b357c1cea31a2ed6a7d0238f794139318","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:56:35.065097Z","signature_b64":"oA/zzSR63YLe4I7JFr7BnaKIInvj380GeJ/0bN1bKivyhBG056NRIeGv+rC173NQ9r87WD56msfmYRI6P+5ZCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8cac27452a2065b9bd6c05354820b25b357c1cea31a2ed6a7d0238f794139318","last_reissued_at":"2026-05-18T03:56:35.064710Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:56:35.064710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5367","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":"2026-05-18T03:56:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X66+FjDnRCGfsLAtedp2oZXyHD9sV0B+T3TOM91mmDIWTNujOuTu0scPglBGXVusx8/rq8IzptOVlJ1bX5RzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T12:32:19.269415Z"},"content_sha256":"e0fb11e75c2f15add34867ee013e579239a1bc34c0b12066bec17cb626196485","schema_version":"1.0","event_id":"sha256:e0fb11e75c2f15add34867ee013e579239a1bc34c0b12066bec17cb626196485"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:RSWCORJKEBS3TPLMAU2UQIFSLM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Influence of Silicon Nanoclusters on the Optical Properties of a-SiNx Samples: A Theoretical Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"M. Ippolito, R. Guerra, S. Meloni, S. Ossicini","submitted_at":"2012-04-24T13:18:09Z","abstract_excerpt":"By means of ab-initio calculations we investigate the optical properties of pure a-SiN$_x$ samples, with $x \\in [0.4, 1.8]$, and samples embedding silicon nanoclusters (NCs) of diameter $0.5 \\leq d \\leq 1.0$ nm. In the pure samples the optical absorption gap and the radiative recombination rate vary according to the concentration of Si-N bonds. In the presence of NCs the radiative rate of the samples is barely affected, indicating that the intense photoluminescence of experimental samples is mostly due to the matrix itself rather than to the NCs. Besides, we evidence an important role of Si-N-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5367","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":"2026-05-18T03:56:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uy74B2gxWNTpQlzacy5QSCTShddY2SuFwliILd+x+dKMqiv9och+5Iocb/b6zYjdYB2PbNdv2DOY7PrFMTK6BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T12:32:19.270120Z"},"content_sha256":"1caad87859b4d34f452dfcfe77f679e9d1a679bd2ca230f6c7beb64a4f95a184","schema_version":"1.0","event_id":"sha256:1caad87859b4d34f452dfcfe77f679e9d1a679bd2ca230f6c7beb64a4f95a184"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RSWCORJKEBS3TPLMAU2UQIFSLM/bundle.json","state_url":"https://pith.science/pith/RSWCORJKEBS3TPLMAU2UQIFSLM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RSWCORJKEBS3TPLMAU2UQIFSLM/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":"2026-05-24T12:32:19Z","links":{"resolver":"https://pith.science/pith/RSWCORJKEBS3TPLMAU2UQIFSLM","bundle":"https://pith.science/pith/RSWCORJKEBS3TPLMAU2UQIFSLM/bundle.json","state":"https://pith.science/pith/RSWCORJKEBS3TPLMAU2UQIFSLM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RSWCORJKEBS3TPLMAU2UQIFSLM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:RSWCORJKEBS3TPLMAU2UQIFSLM","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":"deaf7f5a72faf7fa93a6600bd74a7d8ce43a08e39080e7e7f22c8d34bbb5b4f3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-24T13:18:09Z","title_canon_sha256":"7b1b496fe85b3a92b5bf65822e2fa125be234fc4f9a4f17a06be6e43d2b39ca0"},"schema_version":"1.0","source":{"id":"1204.5367","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5367","created_at":"2026-05-18T03:56:35Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5367v1","created_at":"2026-05-18T03:56:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5367","created_at":"2026-05-18T03:56:35Z"},{"alias_kind":"pith_short_12","alias_value":"RSWCORJKEBS3","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RSWCORJKEBS3TPLM","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RSWCORJK","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:1caad87859b4d34f452dfcfe77f679e9d1a679bd2ca230f6c7beb64a4f95a184","target":"graph","created_at":"2026-05-18T03:56:35Z","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":"By means of ab-initio calculations we investigate the optical properties of pure a-SiN$_x$ samples, with $x \\in [0.4, 1.8]$, and samples embedding silicon nanoclusters (NCs) of diameter $0.5 \\leq d \\leq 1.0$ nm. In the pure samples the optical absorption gap and the radiative recombination rate vary according to the concentration of Si-N bonds. In the presence of NCs the radiative rate of the samples is barely affected, indicating that the intense photoluminescence of experimental samples is mostly due to the matrix itself rather than to the NCs. Besides, we evidence an important role of Si-N-","authors_text":"M. Ippolito, R. Guerra, S. Meloni, S. Ossicini","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-24T13:18:09Z","title":"The Influence of Silicon Nanoclusters on the Optical Properties of a-SiNx Samples: A Theoretical Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5367","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:e0fb11e75c2f15add34867ee013e579239a1bc34c0b12066bec17cb626196485","target":"record","created_at":"2026-05-18T03:56:35Z","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":"deaf7f5a72faf7fa93a6600bd74a7d8ce43a08e39080e7e7f22c8d34bbb5b4f3","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-24T13:18:09Z","title_canon_sha256":"7b1b496fe85b3a92b5bf65822e2fa125be234fc4f9a4f17a06be6e43d2b39ca0"},"schema_version":"1.0","source":{"id":"1204.5367","kind":"arxiv","version":1}},"canonical_sha256":"8cac27452a2065b9bd6c05354820b25b357c1cea31a2ed6a7d0238f794139318","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8cac27452a2065b9bd6c05354820b25b357c1cea31a2ed6a7d0238f794139318","first_computed_at":"2026-05-18T03:56:35.064710Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:56:35.064710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oA/zzSR63YLe4I7JFr7BnaKIInvj380GeJ/0bN1bKivyhBG056NRIeGv+rC173NQ9r87WD56msfmYRI6P+5ZCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:56:35.065097Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5367","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0fb11e75c2f15add34867ee013e579239a1bc34c0b12066bec17cb626196485","sha256:1caad87859b4d34f452dfcfe77f679e9d1a679bd2ca230f6c7beb64a4f95a184"],"state_sha256":"e89f12ca32d86c6a893b7d6924eaaa643ff879e08f1b921449f73d821507f0b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bHcPnWuSoBUbzyrinKyx1HrI2wNmDBwAoXMDzDw5pA9KZXciWJ6bXJqbsa7Lj/SbBZrvLMgHMBgOtO679/1zDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T12:32:19.273582Z","bundle_sha256":"7795573353527dc18d642054725276e7ada2c25cd1d0bd5e309a092eb90fc842"}}