{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:CUPHJ7P7FXLSD2PHOO7AFNL6KW","short_pith_number":"pith:CUPHJ7P7","canonical_record":{"source":{"id":"1812.05847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-12-14T10:22:01Z","cross_cats_sorted":[],"title_canon_sha256":"10fe056c6ab8cd3c222de873e75d421a5a86eda4f0b8171485601a8eb1d9f191","abstract_canon_sha256":"b4fe10a2a202ffaa24db797d8b8e67bca63034000531df1e35a2cd3a1817370b"},"schema_version":"1.0"},"canonical_sha256":"151e74fdff2dd721e9e773be02b57e55ac25e1a41d0dcef521dcc791eec91caa","source":{"kind":"arxiv","id":"1812.05847","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.05847","created_at":"2026-05-17T23:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1812.05847v1","created_at":"2026-05-17T23:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05847","created_at":"2026-05-17T23:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"CUPHJ7P7FXLS","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"CUPHJ7P7FXLSD2PH","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"CUPHJ7P7","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:CUPHJ7P7FXLSD2PHOO7AFNL6KW","target":"record","payload":{"canonical_record":{"source":{"id":"1812.05847","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-12-14T10:22:01Z","cross_cats_sorted":[],"title_canon_sha256":"10fe056c6ab8cd3c222de873e75d421a5a86eda4f0b8171485601a8eb1d9f191","abstract_canon_sha256":"b4fe10a2a202ffaa24db797d8b8e67bca63034000531df1e35a2cd3a1817370b"},"schema_version":"1.0"},"canonical_sha256":"151e74fdff2dd721e9e773be02b57e55ac25e1a41d0dcef521dcc791eec91caa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:17.952555Z","signature_b64":"iZhbY7fE5+gWv+uLfYPkkqdfw/lRo4H6F56ABYVhAV1cDyxLLB8E1y60Uj9VMQwO9Oo6J+Yk3pplKjEWcYJtCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"151e74fdff2dd721e9e773be02b57e55ac25e1a41d0dcef521dcc791eec91caa","last_reissued_at":"2026-05-17T23:58:17.952118Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:17.952118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.05847","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":"2026-05-17T23:58:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f0lAiOfMEmFiDCEW20EviXQ8H04rhbzzIKuB4V8ofOLbUYL3IlSXomNMSswvruCOpaG/ucsItVrIvZm4urBPBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:06:06.456823Z"},"content_sha256":"0669020117bf55d6c78f14572131715ff08addbe9a9fafc23d1b1a05ed46a090","schema_version":"1.0","event_id":"sha256:0669020117bf55d6c78f14572131715ff08addbe9a9fafc23d1b1a05ed46a090"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:CUPHJ7P7FXLSD2PHOO7AFNL6KW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Copper sulfide nanosheets with shape-tunable plasmonic properties in the NIR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Christian Klinke, Eugen Klein, Iryna Yaremchuk, Rostyslav Lesyuk","submitted_at":"2018-12-14T10:22:01Z","abstract_excerpt":"2D copper sulfide nanocrystals are promising building blocks for plasmonic materials in the near-infrared (NIR) spectral region. We demonstrate precise shape and size control (hexagonal/triangle) of colloidal plasmonic copper sulfide (covellite) nano-prisms simply by tuning the precursors concentration without introduction of additional ligands. The ultra-thin 2D nanocrystals possess sizes between 13 and 100 nm and triangular or hexangular shapes. We also demonstrate CuS nanosheets (NSs) with lateral sizes up to 2 microns using a syringe pump. Based on the experimental findings and DFT simulat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05847","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":"2026-05-17T23:58:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FeMjm0x6jcl3RogK6rx/KOQSI8w4Zj1C2dNv8dme18w1s9bBMxSCM660FXi8Pisx0vwgYywEPOWrSUttkRiOAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:06:06.457498Z"},"content_sha256":"c9f01b4788d3571a0de494001c8740b06306045c89a0e2a26d705cce531b1609","schema_version":"1.0","event_id":"sha256:c9f01b4788d3571a0de494001c8740b06306045c89a0e2a26d705cce531b1609"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW/bundle.json","state_url":"https://pith.science/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW/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":"2026-05-25T16:06:06Z","links":{"resolver":"https://pith.science/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW","bundle":"https://pith.science/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW/bundle.json","state":"https://pith.science/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CUPHJ7P7FXLSD2PHOO7AFNL6KW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CUPHJ7P7FXLSD2PHOO7AFNL6KW","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":"b4fe10a2a202ffaa24db797d8b8e67bca63034000531df1e35a2cd3a1817370b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-12-14T10:22:01Z","title_canon_sha256":"10fe056c6ab8cd3c222de873e75d421a5a86eda4f0b8171485601a8eb1d9f191"},"schema_version":"1.0","source":{"id":"1812.05847","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.05847","created_at":"2026-05-17T23:58:17Z"},{"alias_kind":"arxiv_version","alias_value":"1812.05847v1","created_at":"2026-05-17T23:58:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.05847","created_at":"2026-05-17T23:58:17Z"},{"alias_kind":"pith_short_12","alias_value":"CUPHJ7P7FXLS","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"CUPHJ7P7FXLSD2PH","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"CUPHJ7P7","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:c9f01b4788d3571a0de494001c8740b06306045c89a0e2a26d705cce531b1609","target":"graph","created_at":"2026-05-17T23:58:17Z","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":"2D copper sulfide nanocrystals are promising building blocks for plasmonic materials in the near-infrared (NIR) spectral region. We demonstrate precise shape and size control (hexagonal/triangle) of colloidal plasmonic copper sulfide (covellite) nano-prisms simply by tuning the precursors concentration without introduction of additional ligands. The ultra-thin 2D nanocrystals possess sizes between 13 and 100 nm and triangular or hexangular shapes. We also demonstrate CuS nanosheets (NSs) with lateral sizes up to 2 microns using a syringe pump. Based on the experimental findings and DFT simulat","authors_text":"Christian Klinke, Eugen Klein, Iryna Yaremchuk, Rostyslav Lesyuk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-12-14T10:22:01Z","title":"Copper sulfide nanosheets with shape-tunable plasmonic properties in the NIR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.05847","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":"sha256:0669020117bf55d6c78f14572131715ff08addbe9a9fafc23d1b1a05ed46a090","target":"record","created_at":"2026-05-17T23:58:17Z","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":"b4fe10a2a202ffaa24db797d8b8e67bca63034000531df1e35a2cd3a1817370b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-12-14T10:22:01Z","title_canon_sha256":"10fe056c6ab8cd3c222de873e75d421a5a86eda4f0b8171485601a8eb1d9f191"},"schema_version":"1.0","source":{"id":"1812.05847","kind":"arxiv","version":1}},"canonical_sha256":"151e74fdff2dd721e9e773be02b57e55ac25e1a41d0dcef521dcc791eec91caa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"151e74fdff2dd721e9e773be02b57e55ac25e1a41d0dcef521dcc791eec91caa","first_computed_at":"2026-05-17T23:58:17.952118Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:17.952118Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iZhbY7fE5+gWv+uLfYPkkqdfw/lRo4H6F56ABYVhAV1cDyxLLB8E1y60Uj9VMQwO9Oo6J+Yk3pplKjEWcYJtCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:17.952555Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.05847","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0669020117bf55d6c78f14572131715ff08addbe9a9fafc23d1b1a05ed46a090","sha256:c9f01b4788d3571a0de494001c8740b06306045c89a0e2a26d705cce531b1609"],"state_sha256":"0f1e795ca31f9005c8dc9b5f5dfe94740d533650691ce928b63f97b347fca243"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YWQQmLfxThrLTL0qqaCYjLvFaONa/x9rAZL3jXJwUSllB0p/gdJisHFyTFR4dmU40KjdyDMP9SG0AmCo1YBFAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:06:06.461164Z","bundle_sha256":"cb7451f3f27240855a289ccb89c7eaafbeedb35c38f84a45cc1b0201bb14b70c"}}