{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XD5XWX4G723XRVKWAQZ6XFYEWV","short_pith_number":"pith:XD5XWX4G","canonical_record":{"source":{"id":"1803.04158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T09:18:06Z","cross_cats_sorted":[],"title_canon_sha256":"a5b5d855cc2b346c13c56eec20dd83bb1e9fb9a9fb93e28cfb7baf737f7eebee","abstract_canon_sha256":"5d26ddbd37ecc474e7ab45c26bf8a4d56b3aaa20313c5305fe9d6e81ac9a717e"},"schema_version":"1.0"},"canonical_sha256":"b8fb7b5f86feb778d5560433eb9704b54847f73c0521990d6cf8b2c76924f13b","source":{"kind":"arxiv","id":"1803.04158","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.04158","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"1803.04158v1","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.04158","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"XD5XWX4G723X","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XD5XWX4G723XRVKW","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XD5XWX4G","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XD5XWX4G723XRVKWAQZ6XFYEWV","target":"record","payload":{"canonical_record":{"source":{"id":"1803.04158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T09:18:06Z","cross_cats_sorted":[],"title_canon_sha256":"a5b5d855cc2b346c13c56eec20dd83bb1e9fb9a9fb93e28cfb7baf737f7eebee","abstract_canon_sha256":"5d26ddbd37ecc474e7ab45c26bf8a4d56b3aaa20313c5305fe9d6e81ac9a717e"},"schema_version":"1.0"},"canonical_sha256":"b8fb7b5f86feb778d5560433eb9704b54847f73c0521990d6cf8b2c76924f13b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:36.997097Z","signature_b64":"LKEk1/X7g6Ozh3jpYlnXI87IOkC//iy2y23CriYsRbdBsuMYBcyzfpEksxXghQcM4XouYBfG6bbV26zhrECzAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8fb7b5f86feb778d5560433eb9704b54847f73c0521990d6cf8b2c76924f13b","last_reissued_at":"2026-05-18T00:03:36.996657Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:36.996657Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.04158","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":"2026-05-18T00:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eDaEJFam53gpyNCZCM69Lmbax2pKIW7JY3DZ8dMrGiE8yBTXzAnmWQqLx6bGjjLzY1N3I+cmRL2BuXyciW7wDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T13:17:23.911050Z"},"content_sha256":"6dd0d21246f85f2368f79130c50fbebc9e732cb02b7ca9004318398573e692b6","schema_version":"1.0","event_id":"sha256:6dd0d21246f85f2368f79130c50fbebc9e732cb02b7ca9004318398573e692b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XD5XWX4G723XRVKWAQZ6XFYEWV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing ultrafast spin-relaxation and precession dynamics in a cuprate Mott insulator with 7-fs optical pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Sawa, H. Okamoto, H. Yada, K. Oka, N. Sono, S. Adachi, S. Ishihara, T. Ito, T. Miyamoto, T. Morimoto, T. Terashige, Y. Matsui, Y. Watanabe","submitted_at":"2018-03-12T09:18:06Z","abstract_excerpt":"A charge excitation in a two-dimensional Mott insulator is strongly coupled with the surrounding spins, which is observed as magnetic-polaron formations of doped carriers and a magnon sideband in the Mott-gap transition spectrum. However, the dynamics related to the spin sector are difficult to measure. Here, we show that pump-probe reflection spectroscopy with 7-fs laser pulses can detect the optically induced spin dynamics in Nd$_2$CuO$_4$, a cuprate Mott insulator. The bleaching signal at the Mott-gap transition is enhanced at $\\sim$18 fs, which corresponds to the spin-relaxation time in ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.04158","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":"2026-05-18T00:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5qU2OsctYxmPoP77R7n1U+mu0q9S7jIu3Ko/PQUNk6DEO16OWiduCa4RxmqOXjAYikG/rcHEXUOh4LpS6eDgDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T13:17:23.911420Z"},"content_sha256":"ab50e08b1f4ed84072a0ef93c35f6ee7ef9ec5f7f2a25469b2e0933f4489c09f","schema_version":"1.0","event_id":"sha256:ab50e08b1f4ed84072a0ef93c35f6ee7ef9ec5f7f2a25469b2e0933f4489c09f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XD5XWX4G723XRVKWAQZ6XFYEWV/bundle.json","state_url":"https://pith.science/pith/XD5XWX4G723XRVKWAQZ6XFYEWV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XD5XWX4G723XRVKWAQZ6XFYEWV/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":"2026-06-09T13:17:23Z","links":{"resolver":"https://pith.science/pith/XD5XWX4G723XRVKWAQZ6XFYEWV","bundle":"https://pith.science/pith/XD5XWX4G723XRVKWAQZ6XFYEWV/bundle.json","state":"https://pith.science/pith/XD5XWX4G723XRVKWAQZ6XFYEWV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XD5XWX4G723XRVKWAQZ6XFYEWV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XD5XWX4G723XRVKWAQZ6XFYEWV","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":"5d26ddbd37ecc474e7ab45c26bf8a4d56b3aaa20313c5305fe9d6e81ac9a717e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T09:18:06Z","title_canon_sha256":"a5b5d855cc2b346c13c56eec20dd83bb1e9fb9a9fb93e28cfb7baf737f7eebee"},"schema_version":"1.0","source":{"id":"1803.04158","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.04158","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"1803.04158v1","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.04158","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"XD5XWX4G723X","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XD5XWX4G723XRVKW","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XD5XWX4G","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:ab50e08b1f4ed84072a0ef93c35f6ee7ef9ec5f7f2a25469b2e0933f4489c09f","target":"graph","created_at":"2026-05-18T00:03:36Z","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":"A charge excitation in a two-dimensional Mott insulator is strongly coupled with the surrounding spins, which is observed as magnetic-polaron formations of doped carriers and a magnon sideband in the Mott-gap transition spectrum. However, the dynamics related to the spin sector are difficult to measure. Here, we show that pump-probe reflection spectroscopy with 7-fs laser pulses can detect the optically induced spin dynamics in Nd$_2$CuO$_4$, a cuprate Mott insulator. The bleaching signal at the Mott-gap transition is enhanced at $\\sim$18 fs, which corresponds to the spin-relaxation time in ma","authors_text":"A. Sawa, H. Okamoto, H. Yada, K. Oka, N. Sono, S. Adachi, S. Ishihara, T. Ito, T. Miyamoto, T. Morimoto, T. Terashige, Y. Matsui, Y. Watanabe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T09:18:06Z","title":"Probing ultrafast spin-relaxation and precession dynamics in a cuprate Mott insulator with 7-fs optical pulses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.04158","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":"sha256:6dd0d21246f85f2368f79130c50fbebc9e732cb02b7ca9004318398573e692b6","target":"record","created_at":"2026-05-18T00:03:36Z","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":"5d26ddbd37ecc474e7ab45c26bf8a4d56b3aaa20313c5305fe9d6e81ac9a717e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-12T09:18:06Z","title_canon_sha256":"a5b5d855cc2b346c13c56eec20dd83bb1e9fb9a9fb93e28cfb7baf737f7eebee"},"schema_version":"1.0","source":{"id":"1803.04158","kind":"arxiv","version":1}},"canonical_sha256":"b8fb7b5f86feb778d5560433eb9704b54847f73c0521990d6cf8b2c76924f13b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8fb7b5f86feb778d5560433eb9704b54847f73c0521990d6cf8b2c76924f13b","first_computed_at":"2026-05-18T00:03:36.996657Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:36.996657Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LKEk1/X7g6Ozh3jpYlnXI87IOkC//iy2y23CriYsRbdBsuMYBcyzfpEksxXghQcM4XouYBfG6bbV26zhrECzAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:36.997097Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.04158","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6dd0d21246f85f2368f79130c50fbebc9e732cb02b7ca9004318398573e692b6","sha256:ab50e08b1f4ed84072a0ef93c35f6ee7ef9ec5f7f2a25469b2e0933f4489c09f"],"state_sha256":"5072bf29af86065f818170aa7974600014b3447b1c2f38b75e1a795280e991c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zkb/d5fddItdoxGDyx8JByZMdsUeWEQutK7wIXxwJjvn5e9aVhoU2KzcpY9T1o72Fgm3lEjN0jvbfzygMROoAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T13:17:23.913350Z","bundle_sha256":"da4899fdd3f17bbcfe0e6038b0eb2deec56568f2268f92815917151048854b5e"}}