{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:5RJCS7T4MZJLNPUKQGR446ZYBP","short_pith_number":"pith:5RJCS7T4","canonical_record":{"source":{"id":"2207.02765","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-07-06T15:56:32Z","cross_cats_sorted":[],"title_canon_sha256":"e9c37b135562044a006cd38a06894f82cccc8eeb01788cf56c1546d1cac997b1","abstract_canon_sha256":"9dc359559bb7947e7f49ed2fcfc7791a33ee8dc1a3d2f2fa89868ab927ef7fbb"},"schema_version":"1.0"},"canonical_sha256":"ec52297e7c6652b6be8a81a3ce7b380be288786b40a91129d4588f54b54f6bd0","source":{"kind":"arxiv","id":"2207.02765","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.02765","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"arxiv_version","alias_value":"2207.02765v1","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.02765","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"pith_short_12","alias_value":"5RJCS7T4MZJL","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"pith_short_16","alias_value":"5RJCS7T4MZJLNPUK","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"pith_short_8","alias_value":"5RJCS7T4","created_at":"2026-07-05T06:24:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:5RJCS7T4MZJLNPUKQGR446ZYBP","target":"record","payload":{"canonical_record":{"source":{"id":"2207.02765","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-07-06T15:56:32Z","cross_cats_sorted":[],"title_canon_sha256":"e9c37b135562044a006cd38a06894f82cccc8eeb01788cf56c1546d1cac997b1","abstract_canon_sha256":"9dc359559bb7947e7f49ed2fcfc7791a33ee8dc1a3d2f2fa89868ab927ef7fbb"},"schema_version":"1.0"},"canonical_sha256":"ec52297e7c6652b6be8a81a3ce7b380be288786b40a91129d4588f54b54f6bd0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:24:09.537333Z","signature_b64":"ZsAQ9PAolnGVQOOxoq8EwdAioYqs5oQmb/Oym7MT/bzVmBX2v4wCR4Bj+Iqb3hYI41IjE6f5R06ZYxdKGJmzDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec52297e7c6652b6be8a81a3ce7b380be288786b40a91129d4588f54b54f6bd0","last_reissued_at":"2026-07-05T06:24:09.536877Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:24:09.536877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.02765","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":"2026-07-05T06:24:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z4IWWxAcd+3EA4/PfqvyuLyVm/110LQrW+t1D6FwQovcN9KFZxi5mzVNE/tB0Fx59d6d5+MSzGnmx7QmrsH8Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:20:19.920627Z"},"content_sha256":"732063469e7e2f83a0f110d8194d08ab341cc02dedc71cdb8d0d7b9af7eb4060","schema_version":"1.0","event_id":"sha256:732063469e7e2f83a0f110d8194d08ab341cc02dedc71cdb8d0d7b9af7eb4060"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:5RJCS7T4MZJLNPUKQGR446ZYBP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Local Symmetry Breaking Drives Picosecond Spin Domain Formation in Polycrystalline Semiconducting Films","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Akshay Rao, Arjun Ashoka, Bart Roose, Jooyoung Sung, Judith L. MacManus-Driscoll, Nives Strkalj, Samuel D. Stranks, Sascha Feldmann, Satyawan Nagane","submitted_at":"2022-07-06T15:56:32Z","abstract_excerpt":"Photoinduced spin-charge interconversion in semiconductors with spin-orbit coupling could provide a route to optically addressable spintronics without the use of external magnetic fields. A central question is whether the resulting spin-associated charge currents are robust to structural disorder, which is inherent to polycrystalline semiconductors that are desirable for device applications. Using femtosecond circular polarization-resolved pump-probe microscopy on polycrystalline halide perovskite thin films, we observe the photoinduced ultrafast formation of spin-polarized positive and, unexp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.02765","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/2207.02765/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":"2026-07-05T06:24:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SXok1qB/X3rMB85WaJvq4IiQx7mS/hlmthZ27W2v6tIpNeGcoX9rMJ51+dnG4uN3WDaFjjg/SBjVLOmdwiB0Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:20:19.921007Z"},"content_sha256":"a10332d2aeafa28d8d8059843916960c07c0d18a389bf31290d5f0c9e5197172","schema_version":"1.0","event_id":"sha256:a10332d2aeafa28d8d8059843916960c07c0d18a389bf31290d5f0c9e5197172"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5RJCS7T4MZJLNPUKQGR446ZYBP/bundle.json","state_url":"https://pith.science/pith/5RJCS7T4MZJLNPUKQGR446ZYBP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5RJCS7T4MZJLNPUKQGR446ZYBP/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":"2026-07-07T12:20:19Z","links":{"resolver":"https://pith.science/pith/5RJCS7T4MZJLNPUKQGR446ZYBP","bundle":"https://pith.science/pith/5RJCS7T4MZJLNPUKQGR446ZYBP/bundle.json","state":"https://pith.science/pith/5RJCS7T4MZJLNPUKQGR446ZYBP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5RJCS7T4MZJLNPUKQGR446ZYBP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5RJCS7T4MZJLNPUKQGR446ZYBP","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":"9dc359559bb7947e7f49ed2fcfc7791a33ee8dc1a3d2f2fa89868ab927ef7fbb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-07-06T15:56:32Z","title_canon_sha256":"e9c37b135562044a006cd38a06894f82cccc8eeb01788cf56c1546d1cac997b1"},"schema_version":"1.0","source":{"id":"2207.02765","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.02765","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"arxiv_version","alias_value":"2207.02765v1","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.02765","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"pith_short_12","alias_value":"5RJCS7T4MZJL","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"pith_short_16","alias_value":"5RJCS7T4MZJLNPUK","created_at":"2026-07-05T06:24:09Z"},{"alias_kind":"pith_short_8","alias_value":"5RJCS7T4","created_at":"2026-07-05T06:24:09Z"}],"graph_snapshots":[{"event_id":"sha256:a10332d2aeafa28d8d8059843916960c07c0d18a389bf31290d5f0c9e5197172","target":"graph","created_at":"2026-07-05T06:24:09Z","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/2207.02765/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Photoinduced spin-charge interconversion in semiconductors with spin-orbit coupling could provide a route to optically addressable spintronics without the use of external magnetic fields. A central question is whether the resulting spin-associated charge currents are robust to structural disorder, which is inherent to polycrystalline semiconductors that are desirable for device applications. Using femtosecond circular polarization-resolved pump-probe microscopy on polycrystalline halide perovskite thin films, we observe the photoinduced ultrafast formation of spin-polarized positive and, unexp","authors_text":"Akshay Rao, Arjun Ashoka, Bart Roose, Jooyoung Sung, Judith L. MacManus-Driscoll, Nives Strkalj, Samuel D. Stranks, Sascha Feldmann, Satyawan Nagane","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-07-06T15:56:32Z","title":"Local Symmetry Breaking Drives Picosecond Spin Domain Formation in Polycrystalline Semiconducting Films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.02765","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":"sha256:732063469e7e2f83a0f110d8194d08ab341cc02dedc71cdb8d0d7b9af7eb4060","target":"record","created_at":"2026-07-05T06:24:09Z","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":"9dc359559bb7947e7f49ed2fcfc7791a33ee8dc1a3d2f2fa89868ab927ef7fbb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-07-06T15:56:32Z","title_canon_sha256":"e9c37b135562044a006cd38a06894f82cccc8eeb01788cf56c1546d1cac997b1"},"schema_version":"1.0","source":{"id":"2207.02765","kind":"arxiv","version":1}},"canonical_sha256":"ec52297e7c6652b6be8a81a3ce7b380be288786b40a91129d4588f54b54f6bd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec52297e7c6652b6be8a81a3ce7b380be288786b40a91129d4588f54b54f6bd0","first_computed_at":"2026-07-05T06:24:09.536877Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:24:09.536877Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZsAQ9PAolnGVQOOxoq8EwdAioYqs5oQmb/Oym7MT/bzVmBX2v4wCR4Bj+Iqb3hYI41IjE6f5R06ZYxdKGJmzDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:24:09.537333Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.02765","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:732063469e7e2f83a0f110d8194d08ab341cc02dedc71cdb8d0d7b9af7eb4060","sha256:a10332d2aeafa28d8d8059843916960c07c0d18a389bf31290d5f0c9e5197172"],"state_sha256":"9a43a16d1a9348faa96bfa9973058bebd5ec895a5e088e242fedadafc4bf3f11"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jonCRSkKgL9gFa1AVpHmiW5FXAHd2B70Nz5Ca0y+ra3o+76CgxTSB+VOq/tp5gX46AS71DtntcVz1Svi+pNcCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:20:19.922977Z","bundle_sha256":"46ffb84aa5074070ed60ce3307ecad9eb4b55633a0737234a55aab046281cff3"}}