{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:KDZGAO63ACQFMXRLONGZSJAKFG","short_pith_number":"pith:KDZGAO63","canonical_record":{"source":{"id":"2006.14843","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-06-26T07:40:05Z","cross_cats_sorted":[],"title_canon_sha256":"34c079ef4bc1fc91d321e53e9c57f12aa3f0c1d9f69e4dd3f56faee93b242b09","abstract_canon_sha256":"4434d72b03a153095d2e6070c753025e94497835c91dd4b617b6ca85bb9718c3"},"schema_version":"1.0"},"canonical_sha256":"50f2603bdb00a0565e2b734d99240a29a675be857fefd9347403bbad644f9923","source":{"kind":"arxiv","id":"2006.14843","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.14843","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"arxiv_version","alias_value":"2006.14843v1","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.14843","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"pith_short_12","alias_value":"KDZGAO63ACQF","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"pith_short_16","alias_value":"KDZGAO63ACQFMXRL","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"pith_short_8","alias_value":"KDZGAO63","created_at":"2026-07-05T06:31:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:KDZGAO63ACQFMXRLONGZSJAKFG","target":"record","payload":{"canonical_record":{"source":{"id":"2006.14843","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-06-26T07:40:05Z","cross_cats_sorted":[],"title_canon_sha256":"34c079ef4bc1fc91d321e53e9c57f12aa3f0c1d9f69e4dd3f56faee93b242b09","abstract_canon_sha256":"4434d72b03a153095d2e6070c753025e94497835c91dd4b617b6ca85bb9718c3"},"schema_version":"1.0"},"canonical_sha256":"50f2603bdb00a0565e2b734d99240a29a675be857fefd9347403bbad644f9923","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:31:55.081566Z","signature_b64":"3jTPsNiVN6MNVCt2qoMSs1Tz5ilRQKYwAzcGkd7AdoTvPgroraY/y4RGDPTUcfEicBvvcX36vJ3K3We2AoghAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50f2603bdb00a0565e2b734d99240a29a675be857fefd9347403bbad644f9923","last_reissued_at":"2026-07-05T06:31:55.081149Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:31:55.081149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.14843","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":"2026-07-05T06:31:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dz1OBXNq36PuOtl3622qbHT0pGm/I1e56Wi4IweyCD8lL3p5HerPLVrsFZW+MmbO27occ1+aOztGF1NDhSfkAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T21:18:24.080391Z"},"content_sha256":"2f7efe15a618528103c24573ed5ad524e74b4cf3bf94730b4f3192fe75c61690","schema_version":"1.0","event_id":"sha256:2f7efe15a618528103c24573ed5ad524e74b4cf3bf94730b4f3192fe75c61690"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:KDZGAO63ACQFMXRLONGZSJAKFG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fast and anomalous exciton diffusion in two-dimensional hybrid perovskites","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Alexey Chernikov, Barbara Meisinger, David A. Egger, Jonas D. Ziegler, Jonas Zipfel, Kenji Watanabe, Matan Menahem, Omer Yaffe, Takashi Taniguchi, Xiangzhou Zhu","submitted_at":"2020-06-26T07:40:05Z","abstract_excerpt":"Two-dimensional hybrid perovskites are currently in the spotlight of condensed matter and nanotechnology research due to their intriguing optoelectronic and vibrational properties with emerging potential for light-harvesting and -emitting applications. While it is known that these natural quantum wells host tightly bound excitons, the mobilities of these fundamental optical excitations at the heart of the optoelectronic applications are still largely unexplored. Here, we directly monitor the diffusion of excitons through ultrafast emission microscopy from liquid helium to room temperature in h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.14843","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/2006.14843/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":"2026-07-05T06:31:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jQMi/hvQu1IaoQStM/8cBfDoYYYlpAZlLg2IVNGH7inJyvlqq/v0FmsPwIX3fUPNXI76Y+UZmNFCKtVH7yXlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T21:18:24.080883Z"},"content_sha256":"3a507151fffd4fa872aaafdeb24e1252118a5b591a652b556aeb226f37663a86","schema_version":"1.0","event_id":"sha256:3a507151fffd4fa872aaafdeb24e1252118a5b591a652b556aeb226f37663a86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KDZGAO63ACQFMXRLONGZSJAKFG/bundle.json","state_url":"https://pith.science/pith/KDZGAO63ACQFMXRLONGZSJAKFG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KDZGAO63ACQFMXRLONGZSJAKFG/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":"2026-08-23T21:18:24Z","links":{"resolver":"https://pith.science/pith/KDZGAO63ACQFMXRLONGZSJAKFG","bundle":"https://pith.science/pith/KDZGAO63ACQFMXRLONGZSJAKFG/bundle.json","state":"https://pith.science/pith/KDZGAO63ACQFMXRLONGZSJAKFG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KDZGAO63ACQFMXRLONGZSJAKFG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:KDZGAO63ACQFMXRLONGZSJAKFG","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":"4434d72b03a153095d2e6070c753025e94497835c91dd4b617b6ca85bb9718c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-06-26T07:40:05Z","title_canon_sha256":"34c079ef4bc1fc91d321e53e9c57f12aa3f0c1d9f69e4dd3f56faee93b242b09"},"schema_version":"1.0","source":{"id":"2006.14843","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.14843","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"arxiv_version","alias_value":"2006.14843v1","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.14843","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"pith_short_12","alias_value":"KDZGAO63ACQF","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"pith_short_16","alias_value":"KDZGAO63ACQFMXRL","created_at":"2026-07-05T06:31:55Z"},{"alias_kind":"pith_short_8","alias_value":"KDZGAO63","created_at":"2026-07-05T06:31:55Z"}],"graph_snapshots":[{"event_id":"sha256:3a507151fffd4fa872aaafdeb24e1252118a5b591a652b556aeb226f37663a86","target":"graph","created_at":"2026-07-05T06:31:55Z","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/2006.14843/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two-dimensional hybrid perovskites are currently in the spotlight of condensed matter and nanotechnology research due to their intriguing optoelectronic and vibrational properties with emerging potential for light-harvesting and -emitting applications. While it is known that these natural quantum wells host tightly bound excitons, the mobilities of these fundamental optical excitations at the heart of the optoelectronic applications are still largely unexplored. Here, we directly monitor the diffusion of excitons through ultrafast emission microscopy from liquid helium to room temperature in h","authors_text":"Alexey Chernikov, Barbara Meisinger, David A. Egger, Jonas D. Ziegler, Jonas Zipfel, Kenji Watanabe, Matan Menahem, Omer Yaffe, Takashi Taniguchi, Xiangzhou Zhu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-06-26T07:40:05Z","title":"Fast and anomalous exciton diffusion in two-dimensional hybrid perovskites"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.14843","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":"sha256:2f7efe15a618528103c24573ed5ad524e74b4cf3bf94730b4f3192fe75c61690","target":"record","created_at":"2026-07-05T06:31:55Z","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":"4434d72b03a153095d2e6070c753025e94497835c91dd4b617b6ca85bb9718c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-06-26T07:40:05Z","title_canon_sha256":"34c079ef4bc1fc91d321e53e9c57f12aa3f0c1d9f69e4dd3f56faee93b242b09"},"schema_version":"1.0","source":{"id":"2006.14843","kind":"arxiv","version":1}},"canonical_sha256":"50f2603bdb00a0565e2b734d99240a29a675be857fefd9347403bbad644f9923","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50f2603bdb00a0565e2b734d99240a29a675be857fefd9347403bbad644f9923","first_computed_at":"2026-07-05T06:31:55.081149Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:31:55.081149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3jTPsNiVN6MNVCt2qoMSs1Tz5ilRQKYwAzcGkd7AdoTvPgroraY/y4RGDPTUcfEicBvvcX36vJ3K3We2AoghAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:31:55.081566Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.14843","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f7efe15a618528103c24573ed5ad524e74b4cf3bf94730b4f3192fe75c61690","sha256:3a507151fffd4fa872aaafdeb24e1252118a5b591a652b556aeb226f37663a86"],"state_sha256":"603fc54058392da7907c3e026417154529aec70cce2302b323c28889877049b9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0vLI0RKUMc6gAyJzKo3MJGNchz3aVReAXWTAe56Ie0RlTmi5J75cC7XOlqvpWbf4960t8xyuIb9ouZHoWma1BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T21:18:24.084415Z","bundle_sha256":"1eec8ef2205ef7690ec6a66222be91951c9ec8913ccc24931093db2999b3b1f2"}}