{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:D2PL7C2YUEOK5SSH2LWGB4NDKA","short_pith_number":"pith:D2PL7C2Y","canonical_record":{"source":{"id":"2504.21351","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-04-30T06:19:20Z","cross_cats_sorted":[],"title_canon_sha256":"8d6e3f30465bb60c6d3416233651ada8bee4913370c38f0f9a79cea922c17e03","abstract_canon_sha256":"8824484568e2338a8f3ffdd94941189265b216a340e045590083bb830c64f840"},"schema_version":"1.0"},"canonical_sha256":"1e9ebf8b58a11caeca47d2ec60f1a35019bcc4ba4e15d183264029ec7ea5509b","source":{"kind":"arxiv","id":"2504.21351","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.21351","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"arxiv_version","alias_value":"2504.21351v1","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.21351","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"pith_short_12","alias_value":"D2PL7C2YUEOK","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"pith_short_16","alias_value":"D2PL7C2YUEOK5SSH","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"pith_short_8","alias_value":"D2PL7C2Y","created_at":"2026-07-05T10:56:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:D2PL7C2YUEOK5SSH2LWGB4NDKA","target":"record","payload":{"canonical_record":{"source":{"id":"2504.21351","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-04-30T06:19:20Z","cross_cats_sorted":[],"title_canon_sha256":"8d6e3f30465bb60c6d3416233651ada8bee4913370c38f0f9a79cea922c17e03","abstract_canon_sha256":"8824484568e2338a8f3ffdd94941189265b216a340e045590083bb830c64f840"},"schema_version":"1.0"},"canonical_sha256":"1e9ebf8b58a11caeca47d2ec60f1a35019bcc4ba4e15d183264029ec7ea5509b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:56:22.641302Z","signature_b64":"1y3k4YuZmcwx427ZtnDA1m0s4nvh5cg0hk2Aq8ynn2Yt4ho0DXj5Zjl1UuXsPe1FGZFl5TFbmUKzHTw5FpFjDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e9ebf8b58a11caeca47d2ec60f1a35019bcc4ba4e15d183264029ec7ea5509b","last_reissued_at":"2026-07-05T10:56:22.640769Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:56:22.640769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.21351","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":"2026-07-05T10:56:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SCDsHR/h2WzkuaYoMnh+Du8QCoenADEQJ3HQBqa6zMsyafyFBUTPE3tW63m8pWMF9rsuSQpzEHnGm/gHVJDIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T17:03:47.966234Z"},"content_sha256":"79e6bd1499756d77f0af48c722c7cfef780fd6a7dc902d584e6c26c22403ada0","schema_version":"1.0","event_id":"sha256:79e6bd1499756d77f0af48c722c7cfef780fd6a7dc902d584e6c26c22403ada0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:D2PL7C2YUEOK5SSH2LWGB4NDKA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Higgs mode in two-dimensional coherent spectroscopy of weak-coupling antiferromagnets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Jiyu Chen, Naoto Tsuji, Philipp Werner","submitted_at":"2025-04-30T06:19:20Z","abstract_excerpt":"Two-dimensional coherent spectroscopy (2DCS) provides insights into the nonlinear response of correlated lattice systems. We simulate multipulse excitations in the Hubbard model using nonequilibrium dynamical mean-field theory to extract the 2DCS signal of weak-coupling antiferromagnets with and without disorder. By comparing calculations with static and dynamic Hartree terms, and analyzing the waiting-time dependence of the signal, we identify the contribution of the collective amplitude (Higgs) mode to the spectroscopic features and the relevant underlying processes. With broadband pulses, t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.21351","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/2504.21351/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":"2026-07-05T10:56:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Gvl0pZTsDWyQfduOMd9nGMhxRHDugBS9QyQQIU3uHNmB/OGfn6Z7mzcfH+563tJ8IC28pBAyZUO69hzR/tCCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T17:03:47.966610Z"},"content_sha256":"95a885158198600392916d692ce1f9e9eaff0c8e7480066fb7ecd638c90d5abc","schema_version":"1.0","event_id":"sha256:95a885158198600392916d692ce1f9e9eaff0c8e7480066fb7ecd638c90d5abc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA/bundle.json","state_url":"https://pith.science/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA/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":"2026-08-13T17:03:47Z","links":{"resolver":"https://pith.science/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA","bundle":"https://pith.science/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA/bundle.json","state":"https://pith.science/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D2PL7C2YUEOK5SSH2LWGB4NDKA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:D2PL7C2YUEOK5SSH2LWGB4NDKA","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":"8824484568e2338a8f3ffdd94941189265b216a340e045590083bb830c64f840","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-04-30T06:19:20Z","title_canon_sha256":"8d6e3f30465bb60c6d3416233651ada8bee4913370c38f0f9a79cea922c17e03"},"schema_version":"1.0","source":{"id":"2504.21351","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.21351","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"arxiv_version","alias_value":"2504.21351v1","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.21351","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"pith_short_12","alias_value":"D2PL7C2YUEOK","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"pith_short_16","alias_value":"D2PL7C2YUEOK5SSH","created_at":"2026-07-05T10:56:22Z"},{"alias_kind":"pith_short_8","alias_value":"D2PL7C2Y","created_at":"2026-07-05T10:56:22Z"}],"graph_snapshots":[{"event_id":"sha256:95a885158198600392916d692ce1f9e9eaff0c8e7480066fb7ecd638c90d5abc","target":"graph","created_at":"2026-07-05T10:56:22Z","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/2504.21351/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two-dimensional coherent spectroscopy (2DCS) provides insights into the nonlinear response of correlated lattice systems. We simulate multipulse excitations in the Hubbard model using nonequilibrium dynamical mean-field theory to extract the 2DCS signal of weak-coupling antiferromagnets with and without disorder. By comparing calculations with static and dynamic Hartree terms, and analyzing the waiting-time dependence of the signal, we identify the contribution of the collective amplitude (Higgs) mode to the spectroscopic features and the relevant underlying processes. With broadband pulses, t","authors_text":"Jiyu Chen, Naoto Tsuji, Philipp Werner","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-04-30T06:19:20Z","title":"Higgs mode in two-dimensional coherent spectroscopy of weak-coupling antiferromagnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.21351","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":"sha256:79e6bd1499756d77f0af48c722c7cfef780fd6a7dc902d584e6c26c22403ada0","target":"record","created_at":"2026-07-05T10:56:22Z","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":"8824484568e2338a8f3ffdd94941189265b216a340e045590083bb830c64f840","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-04-30T06:19:20Z","title_canon_sha256":"8d6e3f30465bb60c6d3416233651ada8bee4913370c38f0f9a79cea922c17e03"},"schema_version":"1.0","source":{"id":"2504.21351","kind":"arxiv","version":1}},"canonical_sha256":"1e9ebf8b58a11caeca47d2ec60f1a35019bcc4ba4e15d183264029ec7ea5509b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e9ebf8b58a11caeca47d2ec60f1a35019bcc4ba4e15d183264029ec7ea5509b","first_computed_at":"2026-07-05T10:56:22.640769Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:56:22.640769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1y3k4YuZmcwx427ZtnDA1m0s4nvh5cg0hk2Aq8ynn2Yt4ho0DXj5Zjl1UuXsPe1FGZFl5TFbmUKzHTw5FpFjDg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:56:22.641302Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.21351","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79e6bd1499756d77f0af48c722c7cfef780fd6a7dc902d584e6c26c22403ada0","sha256:95a885158198600392916d692ce1f9e9eaff0c8e7480066fb7ecd638c90d5abc"],"state_sha256":"3a5f68529a54a99852771b234c6bbb9050ad19e46698d71e67cfd615db97a5e7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X93AXEYBdq6kxV05v335bu70gOG2YAVBjAKi7Ot7XBaZGD1wB8Hf7wfoazWRZlICCMhZpWJkACMgtpSyX60zCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T17:03:47.969108Z","bundle_sha256":"c1f841a5d24f8495cdcd914dee717b3f718024f096ede15d113297ab1c27e959"}}