{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:N6S4N3VMUK5PMLQDJPOH7KSDN5","short_pith_number":"pith:N6S4N3VM","canonical_record":{"source":{"id":"1801.04225","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-12T16:38:48Z","cross_cats_sorted":[],"title_canon_sha256":"f6687e8859bfbeb8eae41d19625be7c16a111dfc8a0ec140ff75997648d7377b","abstract_canon_sha256":"1ac75c401c392d4156de058520a2b01a6c2152d4e797fa64ea165a20c4f1a47a"},"schema_version":"1.0"},"canonical_sha256":"6fa5c6eeaca2baf62e034bdc7faa436f587e4dbed766e18ca99c913bd367cfc8","source":{"kind":"arxiv","id":"1801.04225","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04225","created_at":"2026-05-17T23:58:42Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04225v1","created_at":"2026-05-17T23:58:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04225","created_at":"2026-05-17T23:58:42Z"},{"alias_kind":"pith_short_12","alias_value":"N6S4N3VMUK5P","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N6S4N3VMUK5PMLQD","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N6S4N3VM","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:N6S4N3VMUK5PMLQDJPOH7KSDN5","target":"record","payload":{"canonical_record":{"source":{"id":"1801.04225","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-12T16:38:48Z","cross_cats_sorted":[],"title_canon_sha256":"f6687e8859bfbeb8eae41d19625be7c16a111dfc8a0ec140ff75997648d7377b","abstract_canon_sha256":"1ac75c401c392d4156de058520a2b01a6c2152d4e797fa64ea165a20c4f1a47a"},"schema_version":"1.0"},"canonical_sha256":"6fa5c6eeaca2baf62e034bdc7faa436f587e4dbed766e18ca99c913bd367cfc8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:42.136039Z","signature_b64":"v95AHrmTd4/ekvEomiohmyPrivXw7+dGKuypjeVGO9KnVjbincZ1xhjrcoxXYjljgkh3rcBmRZ2n/u+kqHlXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fa5c6eeaca2baf62e034bdc7faa436f587e4dbed766e18ca99c913bd367cfc8","last_reissued_at":"2026-05-17T23:58:42.135216Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:42.135216Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.04225","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":"2026-05-17T23:58:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EavrVZh79u6MMnxdeMtkfrZFV5j54Mjsy1HgB2E/YenXdtyL9FGmvcli4rj7RE8+YF/ZNCbjm5vz7jzUjS3IDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:13:38.110641Z"},"content_sha256":"e18d47b0fede1ae711f78872e2ae36bde04752e3b9ef6b276603fcb744285d23","schema_version":"1.0","event_id":"sha256:e18d47b0fede1ae711f78872e2ae36bde04752e3b9ef6b276603fcb744285d23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:N6S4N3VMUK5PMLQDJPOH7KSDN5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Biexciton fine structure in monolayer transition metal dichalcogenides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Akshay Singh, Alexander Steinhoff, Alexander W. Achtstein, Frank Jahnke, Kha Tran, Matthias Florian, Mirco Kolarczik, Nina Owschimikow, Sophia Helmrich, Ulrike Woggon, Xiaoqin Li","submitted_at":"2018-01-12T16:38:48Z","abstract_excerpt":"The optical properties of atomically thin transition metal dichalcogenide (TMDC) semiconductors are shaped by the emergence of correlated many-body complexes due to strong Coulomb interaction. Exceptional electron-hole exchange predestines TMDCs to study fundamental and applied properties of Coulomb complexes such as valley depolarization of excitons and fine-structure splitting of trions. Biexcitons in these materials are less understood and it has been established only recently that they are spectrally located between exciton and trion.\n  Here we show that biexcitons in monolayer TMDCs exhib"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04225","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":"2026-05-17T23:58:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7lhyFQfgODoMNh5UWPXGT2XPTGOwhZDwd0ZYgPWmyCsDqhPo2eWNyLNRLTAcs8KcSQDj9rAFKUZYx+i9jWTmDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:13:38.111303Z"},"content_sha256":"a5cdbc4c053e72987cf04f0e50dfcd6bb4590aacac78a32fb639e2d695cca219","schema_version":"1.0","event_id":"sha256:a5cdbc4c053e72987cf04f0e50dfcd6bb4590aacac78a32fb639e2d695cca219"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5/bundle.json","state_url":"https://pith.science/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5/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":"2026-05-27T05:13:38Z","links":{"resolver":"https://pith.science/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5","bundle":"https://pith.science/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5/bundle.json","state":"https://pith.science/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N6S4N3VMUK5PMLQDJPOH7KSDN5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:N6S4N3VMUK5PMLQDJPOH7KSDN5","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":"1ac75c401c392d4156de058520a2b01a6c2152d4e797fa64ea165a20c4f1a47a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-12T16:38:48Z","title_canon_sha256":"f6687e8859bfbeb8eae41d19625be7c16a111dfc8a0ec140ff75997648d7377b"},"schema_version":"1.0","source":{"id":"1801.04225","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.04225","created_at":"2026-05-17T23:58:42Z"},{"alias_kind":"arxiv_version","alias_value":"1801.04225v1","created_at":"2026-05-17T23:58:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.04225","created_at":"2026-05-17T23:58:42Z"},{"alias_kind":"pith_short_12","alias_value":"N6S4N3VMUK5P","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N6S4N3VMUK5PMLQD","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N6S4N3VM","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:a5cdbc4c053e72987cf04f0e50dfcd6bb4590aacac78a32fb639e2d695cca219","target":"graph","created_at":"2026-05-17T23:58:42Z","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":"The optical properties of atomically thin transition metal dichalcogenide (TMDC) semiconductors are shaped by the emergence of correlated many-body complexes due to strong Coulomb interaction. Exceptional electron-hole exchange predestines TMDCs to study fundamental and applied properties of Coulomb complexes such as valley depolarization of excitons and fine-structure splitting of trions. Biexcitons in these materials are less understood and it has been established only recently that they are spectrally located between exciton and trion.\n  Here we show that biexcitons in monolayer TMDCs exhib","authors_text":"Akshay Singh, Alexander Steinhoff, Alexander W. Achtstein, Frank Jahnke, Kha Tran, Matthias Florian, Mirco Kolarczik, Nina Owschimikow, Sophia Helmrich, Ulrike Woggon, Xiaoqin Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-12T16:38:48Z","title":"Biexciton fine structure in monolayer transition metal dichalcogenides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.04225","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:e18d47b0fede1ae711f78872e2ae36bde04752e3b9ef6b276603fcb744285d23","target":"record","created_at":"2026-05-17T23:58:42Z","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":"1ac75c401c392d4156de058520a2b01a6c2152d4e797fa64ea165a20c4f1a47a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-12T16:38:48Z","title_canon_sha256":"f6687e8859bfbeb8eae41d19625be7c16a111dfc8a0ec140ff75997648d7377b"},"schema_version":"1.0","source":{"id":"1801.04225","kind":"arxiv","version":1}},"canonical_sha256":"6fa5c6eeaca2baf62e034bdc7faa436f587e4dbed766e18ca99c913bd367cfc8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6fa5c6eeaca2baf62e034bdc7faa436f587e4dbed766e18ca99c913bd367cfc8","first_computed_at":"2026-05-17T23:58:42.135216Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:42.135216Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v95AHrmTd4/ekvEomiohmyPrivXw7+dGKuypjeVGO9KnVjbincZ1xhjrcoxXYjljgkh3rcBmRZ2n/u+kqHlXAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:42.136039Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.04225","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e18d47b0fede1ae711f78872e2ae36bde04752e3b9ef6b276603fcb744285d23","sha256:a5cdbc4c053e72987cf04f0e50dfcd6bb4590aacac78a32fb639e2d695cca219"],"state_sha256":"efb48d411c134c0ff78a79aeb42f4157ee702c349165d2d5dc0da025127164c0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uodby8sCiKOb7p1xp4SCk1l1FLLZtyJLryv6NIAl2YJ9QfUduNFJ0TYlFZ6RJaWOfIw27+aiBs6wdJmT6bGjDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T05:13:38.114386Z","bundle_sha256":"5afa6b5058c427a2ff8e453425312654f377315ebcc9a17071fe2309a8263890"}}