{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:5VRDT4E3AEPNZH3VIXK24NOVQU","short_pith_number":"pith:5VRDT4E3","canonical_record":{"source":{"id":"2203.02419","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-04T16:48:55Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"31589ceaccad2493f52d064dcfcf2174891231f282d965b464981bc1862d4e3c","abstract_canon_sha256":"109e26798021e2d50d1d09e0c39766b10e9f39200b82c12f718d657da475007b"},"schema_version":"1.0"},"canonical_sha256":"ed6239f09b011edc9f7545d5ae35d58523f325e6358674629b92855fd601c478","source":{"kind":"arxiv","id":"2203.02419","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.02419","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"arxiv_version","alias_value":"2203.02419v1","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.02419","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"pith_short_12","alias_value":"5VRDT4E3AEPN","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"pith_short_16","alias_value":"5VRDT4E3AEPNZH3V","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"pith_short_8","alias_value":"5VRDT4E3","created_at":"2026-07-05T05:36:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:5VRDT4E3AEPNZH3VIXK24NOVQU","target":"record","payload":{"canonical_record":{"source":{"id":"2203.02419","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-04T16:48:55Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"31589ceaccad2493f52d064dcfcf2174891231f282d965b464981bc1862d4e3c","abstract_canon_sha256":"109e26798021e2d50d1d09e0c39766b10e9f39200b82c12f718d657da475007b"},"schema_version":"1.0"},"canonical_sha256":"ed6239f09b011edc9f7545d5ae35d58523f325e6358674629b92855fd601c478","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:36:46.576870Z","signature_b64":"KZC8dzUhj0U9h/9iyCcn7W7I1C0AuqsRsJfCDnRQ/FIoj00FDDm6tGeMQVaTLPZxwueJ9j60qSk1Y1U3vw4kCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed6239f09b011edc9f7545d5ae35d58523f325e6358674629b92855fd601c478","last_reissued_at":"2026-07-05T05:36:46.576402Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:36:46.576402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.02419","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":"2026-07-05T05:36:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"55Sqkoe8bbO9a1RS+3+pqelgO/aiBLmieRNeqdfneMZgRgJLhAYKR6uBjES3hXMqLzUD9eeifcJSdzvr2LsBDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T14:10:53.677181Z"},"content_sha256":"78525d9d4009db71e32a22de6a6229fe65ec01dd8530cfb09b3dec3d61fdcf64","schema_version":"1.0","event_id":"sha256:78525d9d4009db71e32a22de6a6229fe65ec01dd8530cfb09b3dec3d61fdcf64"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:5VRDT4E3AEPNZH3VIXK24NOVQU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Momentum-Resolved Exciton Coupling and Valley Polarization Dynamics in Monolayer WS$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alice Kunin, Gerd Sch\\\"onhense, Jin Bakalis, Michael G. White, Roland K. Kawakami, Sergey Chernov, Shuyu Cheng, Thomas K. Allison, Xu Du, Zachary H. Withers, Ziling Li","submitted_at":"2022-03-04T16:48:55Z","abstract_excerpt":"Coupling between exciton states across the Brillouin zone in monolayer transition metal dichalcogenides can lead to ultrafast valley depolarization. Using time- and angle-resolved photoemission, we present momentum- and energy-resolved measurements of exciton coupling in monolayer WS$_2$. By comparing full 4D ($k_x, k_y, E, t$) data sets after both linearly and circularly polarized excitation, we are able to disentangle intervalley and intravalley exciton coupling dynamics. Recording in the exciton binding energy basis instead of excitation energy, we observe strong mixing between the B$_{1s}$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.02419","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2203.02419/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:36:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"um4wAXJI7OfYHU3TJX93NE752ilsqe82vDiG9mHkNgYlp2F97vEXbR4E3AvhCwG0c78KmL9b250xrnxjM5FjAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T14:10:53.678117Z"},"content_sha256":"98cda3d7232cede16216873a8d6079f12d5f33c67bba9468aedb45eac53a1b4d","schema_version":"1.0","event_id":"sha256:98cda3d7232cede16216873a8d6079f12d5f33c67bba9468aedb45eac53a1b4d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5VRDT4E3AEPNZH3VIXK24NOVQU/bundle.json","state_url":"https://pith.science/pith/5VRDT4E3AEPNZH3VIXK24NOVQU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5VRDT4E3AEPNZH3VIXK24NOVQU/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":"2026-08-10T14:10:53Z","links":{"resolver":"https://pith.science/pith/5VRDT4E3AEPNZH3VIXK24NOVQU","bundle":"https://pith.science/pith/5VRDT4E3AEPNZH3VIXK24NOVQU/bundle.json","state":"https://pith.science/pith/5VRDT4E3AEPNZH3VIXK24NOVQU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5VRDT4E3AEPNZH3VIXK24NOVQU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5VRDT4E3AEPNZH3VIXK24NOVQU","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":"109e26798021e2d50d1d09e0c39766b10e9f39200b82c12f718d657da475007b","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-04T16:48:55Z","title_canon_sha256":"31589ceaccad2493f52d064dcfcf2174891231f282d965b464981bc1862d4e3c"},"schema_version":"1.0","source":{"id":"2203.02419","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.02419","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"arxiv_version","alias_value":"2203.02419v1","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.02419","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"pith_short_12","alias_value":"5VRDT4E3AEPN","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"pith_short_16","alias_value":"5VRDT4E3AEPNZH3V","created_at":"2026-07-05T05:36:46Z"},{"alias_kind":"pith_short_8","alias_value":"5VRDT4E3","created_at":"2026-07-05T05:36:46Z"}],"graph_snapshots":[{"event_id":"sha256:98cda3d7232cede16216873a8d6079f12d5f33c67bba9468aedb45eac53a1b4d","target":"graph","created_at":"2026-07-05T05:36:46Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2203.02419/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Coupling between exciton states across the Brillouin zone in monolayer transition metal dichalcogenides can lead to ultrafast valley depolarization. Using time- and angle-resolved photoemission, we present momentum- and energy-resolved measurements of exciton coupling in monolayer WS$_2$. By comparing full 4D ($k_x, k_y, E, t$) data sets after both linearly and circularly polarized excitation, we are able to disentangle intervalley and intravalley exciton coupling dynamics. Recording in the exciton binding energy basis instead of excitation energy, we observe strong mixing between the B$_{1s}$","authors_text":"Alice Kunin, Gerd Sch\\\"onhense, Jin Bakalis, Michael G. White, Roland K. Kawakami, Sergey Chernov, Shuyu Cheng, Thomas K. Allison, Xu Du, Zachary H. Withers, Ziling Li","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-04T16:48:55Z","title":"Momentum-Resolved Exciton Coupling and Valley Polarization Dynamics in Monolayer WS$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.02419","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":"sha256:78525d9d4009db71e32a22de6a6229fe65ec01dd8530cfb09b3dec3d61fdcf64","target":"record","created_at":"2026-07-05T05:36:46Z","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":"109e26798021e2d50d1d09e0c39766b10e9f39200b82c12f718d657da475007b","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-03-04T16:48:55Z","title_canon_sha256":"31589ceaccad2493f52d064dcfcf2174891231f282d965b464981bc1862d4e3c"},"schema_version":"1.0","source":{"id":"2203.02419","kind":"arxiv","version":1}},"canonical_sha256":"ed6239f09b011edc9f7545d5ae35d58523f325e6358674629b92855fd601c478","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed6239f09b011edc9f7545d5ae35d58523f325e6358674629b92855fd601c478","first_computed_at":"2026-07-05T05:36:46.576402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:36:46.576402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KZC8dzUhj0U9h/9iyCcn7W7I1C0AuqsRsJfCDnRQ/FIoj00FDDm6tGeMQVaTLPZxwueJ9j60qSk1Y1U3vw4kCw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:36:46.576870Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.02419","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78525d9d4009db71e32a22de6a6229fe65ec01dd8530cfb09b3dec3d61fdcf64","sha256:98cda3d7232cede16216873a8d6079f12d5f33c67bba9468aedb45eac53a1b4d"],"state_sha256":"7ba979390048200a86aeafe50f7b5a01002104c9f2b49149925f455c193dfffd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fK8W5autBVYh8hZkvj2hrBjrojJFQY4+S7HhX1HGkfQBv2oa6++nTMtu6ITtsWVfx011fpKWPrcWJDVZW9CpDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T14:10:53.685096Z","bundle_sha256":"79483bb68f06075b13052df802c921723a50ca5e598c1c8db1e970c5662daffa"}}