{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VYP3F4LZOTQPYQZHTIVXQ757MT","short_pith_number":"pith:VYP3F4LZ","canonical_record":{"source":{"id":"1306.3442","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-14T16:21:56Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"1a5032368622dbb68d976c8aa43cdc12da6068964257047567272942ebaff2fb","abstract_canon_sha256":"8c7ebc25b9e05b60053982d32b835c0139d3c83d7be8a987fd7bb5f45e5c53e2"},"schema_version":"1.0"},"canonical_sha256":"ae1fb2f17974e0fc43279a2b787fbf64dc13f14ffc4dbf7250e9c3017c73770c","source":{"kind":"arxiv","id":"1306.3442","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3442","created_at":"2026-05-18T03:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3442v1","created_at":"2026-05-18T03:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3442","created_at":"2026-05-18T03:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"VYP3F4LZOTQP","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VYP3F4LZOTQPYQZH","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VYP3F4LZ","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VYP3F4LZOTQPYQZHTIVXQ757MT","target":"record","payload":{"canonical_record":{"source":{"id":"1306.3442","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-14T16:21:56Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"1a5032368622dbb68d976c8aa43cdc12da6068964257047567272942ebaff2fb","abstract_canon_sha256":"8c7ebc25b9e05b60053982d32b835c0139d3c83d7be8a987fd7bb5f45e5c53e2"},"schema_version":"1.0"},"canonical_sha256":"ae1fb2f17974e0fc43279a2b787fbf64dc13f14ffc4dbf7250e9c3017c73770c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:13:45.554208Z","signature_b64":"OH91A1x07AwoNb/1wovwojAwtYLv8gxXRRprey2TGV160dYbvdvZ/uQyezNZ6L5+MRzlUKA/P1N1ZpAkloQgDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae1fb2f17974e0fc43279a2b787fbf64dc13f14ffc4dbf7250e9c3017c73770c","last_reissued_at":"2026-05-18T03:13:45.553395Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:13:45.553395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.3442","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":"2026-05-18T03:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3fA/rbyXH4etr24J9OA7D+q2g1PWmnxLLwC88U6o7n5mtSMS+sx132VBtw3SADYKihHDjl5LddVdJ7YvIGlDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:41:49.486110Z"},"content_sha256":"49f391d9a99e5da6c21337eac649130f7f6ca5ccd03607d4b936ffc1fdb1d85c","schema_version":"1.0","event_id":"sha256:49f391d9a99e5da6c21337eac649130f7f6ca5ccd03607d4b936ffc1fdb1d85c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VYP3F4LZOTQPYQZHTIVXQ757MT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strain tuning of optical emission energy and polarization in monolayer and bilayer MoS2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"B.L. Liu, B. Urbaszek, C.R. Zhu, G.Wang, H. Fan, P.H. Tan, Q.X. Feng, T. Amand, X. Marie, X.X.Wu","submitted_at":"2013-06-14T16:21:56Z","abstract_excerpt":"We use micro-Raman and photoluminescence (PL) spectroscopy at 300K to investigate the influence of uniaxial tensile strain on the vibrational and optoelectronic properties of monolayer and bilayer MoS2 on a flexible substrate. The initially degenerate E^1_{2g} Raman mode is split into a doublet as a direct consequence of the strain applied to MoS2 through Van der Waals coupling at the sample-substrate interface. We observe a strong shift of the direct band gap of 48meV/(% of strain) for the monolayer and 46meV/% for the bilayer, whose indirect gap shifts by 86meV/%. We find a strong decrease o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3442","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":"2026-05-18T03:13:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"89OGHsDAo9ztHvhWbeP0/ie2ESZLuS6mpHp2DeHd+Lg3Jy32npsrzABu4LDjIV+h0Lx2SD0yZzud++VNwNVdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:41:49.486488Z"},"content_sha256":"07e67d87c5d2bdf4ee47c040548370fa1071944b66370a5e4829d0910c1f1bc8","schema_version":"1.0","event_id":"sha256:07e67d87c5d2bdf4ee47c040548370fa1071944b66370a5e4829d0910c1f1bc8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VYP3F4LZOTQPYQZHTIVXQ757MT/bundle.json","state_url":"https://pith.science/pith/VYP3F4LZOTQPYQZHTIVXQ757MT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VYP3F4LZOTQPYQZHTIVXQ757MT/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":"2026-05-20T16:41:49Z","links":{"resolver":"https://pith.science/pith/VYP3F4LZOTQPYQZHTIVXQ757MT","bundle":"https://pith.science/pith/VYP3F4LZOTQPYQZHTIVXQ757MT/bundle.json","state":"https://pith.science/pith/VYP3F4LZOTQPYQZHTIVXQ757MT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VYP3F4LZOTQPYQZHTIVXQ757MT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VYP3F4LZOTQPYQZHTIVXQ757MT","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":"8c7ebc25b9e05b60053982d32b835c0139d3c83d7be8a987fd7bb5f45e5c53e2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-14T16:21:56Z","title_canon_sha256":"1a5032368622dbb68d976c8aa43cdc12da6068964257047567272942ebaff2fb"},"schema_version":"1.0","source":{"id":"1306.3442","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3442","created_at":"2026-05-18T03:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3442v1","created_at":"2026-05-18T03:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3442","created_at":"2026-05-18T03:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"VYP3F4LZOTQP","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VYP3F4LZOTQPYQZH","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VYP3F4LZ","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:07e67d87c5d2bdf4ee47c040548370fa1071944b66370a5e4829d0910c1f1bc8","target":"graph","created_at":"2026-05-18T03:13:45Z","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":"We use micro-Raman and photoluminescence (PL) spectroscopy at 300K to investigate the influence of uniaxial tensile strain on the vibrational and optoelectronic properties of monolayer and bilayer MoS2 on a flexible substrate. The initially degenerate E^1_{2g} Raman mode is split into a doublet as a direct consequence of the strain applied to MoS2 through Van der Waals coupling at the sample-substrate interface. We observe a strong shift of the direct band gap of 48meV/(% of strain) for the monolayer and 46meV/% for the bilayer, whose indirect gap shifts by 86meV/%. We find a strong decrease o","authors_text":"B.L. Liu, B. Urbaszek, C.R. Zhu, G.Wang, H. Fan, P.H. Tan, Q.X. Feng, T. Amand, X. Marie, X.X.Wu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-14T16:21:56Z","title":"Strain tuning of optical emission energy and polarization in monolayer and bilayer MoS2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3442","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":"sha256:49f391d9a99e5da6c21337eac649130f7f6ca5ccd03607d4b936ffc1fdb1d85c","target":"record","created_at":"2026-05-18T03:13:45Z","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":"8c7ebc25b9e05b60053982d32b835c0139d3c83d7be8a987fd7bb5f45e5c53e2","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-06-14T16:21:56Z","title_canon_sha256":"1a5032368622dbb68d976c8aa43cdc12da6068964257047567272942ebaff2fb"},"schema_version":"1.0","source":{"id":"1306.3442","kind":"arxiv","version":1}},"canonical_sha256":"ae1fb2f17974e0fc43279a2b787fbf64dc13f14ffc4dbf7250e9c3017c73770c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae1fb2f17974e0fc43279a2b787fbf64dc13f14ffc4dbf7250e9c3017c73770c","first_computed_at":"2026-05-18T03:13:45.553395Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:13:45.553395Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OH91A1x07AwoNb/1wovwojAwtYLv8gxXRRprey2TGV160dYbvdvZ/uQyezNZ6L5+MRzlUKA/P1N1ZpAkloQgDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:13:45.554208Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.3442","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49f391d9a99e5da6c21337eac649130f7f6ca5ccd03607d4b936ffc1fdb1d85c","sha256:07e67d87c5d2bdf4ee47c040548370fa1071944b66370a5e4829d0910c1f1bc8"],"state_sha256":"8e39302e6a0592fa4771e3de9a37655655f708cd09300d42fbcb80adaaa01a5a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DM1xRBVGt0c+ebO4AiQ2ikFrtgQiXbVfgwnKRTlhnXEj9l1JKsn8mmfQcbv+baE/4g9X/ybmHSu5nFhAo9/UCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T16:41:49.488522Z","bundle_sha256":"0de1d37fbf6e101104d9721640f606450ced385da2a9053635d8049cbe3548fa"}}