{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:MR2TJ6YVLRBEVJVBWMRJCEWE7R","short_pith_number":"pith:MR2TJ6YV","canonical_record":{"source":{"id":"2507.17238","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-07-23T06:11:44Z","cross_cats_sorted":[],"title_canon_sha256":"366e2d1e5db7da2a4d1569bf6a5a40877ac18b42d8e866151c83bf669bc9e3b1","abstract_canon_sha256":"bba47f360a267b79e407e45f01cc2b8da83bf42009ec9746344edbca73e59815"},"schema_version":"1.0"},"canonical_sha256":"647534fb155c424aa6a1b3229112c4fc5e60d7da80dff5d3243514d9da49611f","source":{"kind":"arxiv","id":"2507.17238","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.17238","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"arxiv_version","alias_value":"2507.17238v3","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.17238","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"pith_short_12","alias_value":"MR2TJ6YVLRBE","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"pith_short_16","alias_value":"MR2TJ6YVLRBEVJVB","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"pith_short_8","alias_value":"MR2TJ6YV","created_at":"2026-06-10T01:08:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:MR2TJ6YVLRBEVJVBWMRJCEWE7R","target":"record","payload":{"canonical_record":{"source":{"id":"2507.17238","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-07-23T06:11:44Z","cross_cats_sorted":[],"title_canon_sha256":"366e2d1e5db7da2a4d1569bf6a5a40877ac18b42d8e866151c83bf669bc9e3b1","abstract_canon_sha256":"bba47f360a267b79e407e45f01cc2b8da83bf42009ec9746344edbca73e59815"},"schema_version":"1.0"},"canonical_sha256":"647534fb155c424aa6a1b3229112c4fc5e60d7da80dff5d3243514d9da49611f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:08:28.673797Z","signature_b64":"xClL8EwcoOPckJOOHQ9PO3Mk6K4qMKkpbiLJGbjPzcHASlV8fy0fPOl2oEy5UF4VQNKT+kl5te55QTfGW11uAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"647534fb155c424aa6a1b3229112c4fc5e60d7da80dff5d3243514d9da49611f","last_reissued_at":"2026-06-10T01:08:28.672711Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:08:28.672711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.17238","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-10T01:08:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SxN2qbNOmeyClvY++xFxg63AithKsLq+RMMAU3txk3ISLxpa4o26Djc8Lh0YepAA//Owhwoz6rgIuMy8Y9mxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T12:11:09.933692Z"},"content_sha256":"a17402fda5c66e04a849bf69bd7a6da9bcb3b0773c2244255b0566c6de6521f3","schema_version":"1.0","event_id":"sha256:a17402fda5c66e04a849bf69bd7a6da9bcb3b0773c2244255b0566c6de6521f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:MR2TJ6YVLRBEVJVBWMRJCEWE7R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coupling of magnetic and lattice collective excitations in the 2D van der Waals antiferromagnet FePS$_{3}$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alexey Kuzmenko, Dirk van der Marel, Dumitru Dumcenco, Itzik Kapon, Kartik Panda, Nimrod Bachar","submitted_at":"2025-07-23T06:11:44Z","abstract_excerpt":"We combine polarized infrared magneto-transmission and Faraday angle rotation measurements to map the collective excitations of the van der Waals antiferromagnet FePS$_3$. Below the N\\'{e}el temperature ($T_\\mathrm{N} \\approx 118~\\mathrm{K}$), the phonon spectrum becomes strongly anisotropic, reflecting the underlying zigzag antiferromagnetic order. In contrast, a prominent excitation at $122~\\mathrm{cm}^{-1}$ ($15$~meV) is polarization-independent, hardens on cooling, and splits linearly with magnetic field, identifying its magnetic origin. From absolute transmission and Faraday rotation, we "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.17238","kind":"arxiv","version":3},"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/2507.17238/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":"2026-06-10T01:08:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qr3gRNHTgfdsUm4Q41F8LOSpaSvgGI2wCWVlfbFaXTI54YL128sY66AsPl7Hn7RLh5uTVQPL690TGXI4r8r6AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T12:11:09.934417Z"},"content_sha256":"d3fe6354b720742b5d9bf261b3f20b9eb06d1e10abcf2e10606889642b81538e","schema_version":"1.0","event_id":"sha256:d3fe6354b720742b5d9bf261b3f20b9eb06d1e10abcf2e10606889642b81538e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R/bundle.json","state_url":"https://pith.science/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R/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":"2026-08-18T12:11:09Z","links":{"resolver":"https://pith.science/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R","bundle":"https://pith.science/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R/bundle.json","state":"https://pith.science/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MR2TJ6YVLRBEVJVBWMRJCEWE7R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MR2TJ6YVLRBEVJVBWMRJCEWE7R","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":"bba47f360a267b79e407e45f01cc2b8da83bf42009ec9746344edbca73e59815","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-07-23T06:11:44Z","title_canon_sha256":"366e2d1e5db7da2a4d1569bf6a5a40877ac18b42d8e866151c83bf669bc9e3b1"},"schema_version":"1.0","source":{"id":"2507.17238","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.17238","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"arxiv_version","alias_value":"2507.17238v3","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.17238","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"pith_short_12","alias_value":"MR2TJ6YVLRBE","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"pith_short_16","alias_value":"MR2TJ6YVLRBEVJVB","created_at":"2026-06-10T01:08:28Z"},{"alias_kind":"pith_short_8","alias_value":"MR2TJ6YV","created_at":"2026-06-10T01:08:28Z"}],"graph_snapshots":[{"event_id":"sha256:d3fe6354b720742b5d9bf261b3f20b9eb06d1e10abcf2e10606889642b81538e","target":"graph","created_at":"2026-06-10T01:08:28Z","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/2507.17238/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We combine polarized infrared magneto-transmission and Faraday angle rotation measurements to map the collective excitations of the van der Waals antiferromagnet FePS$_3$. Below the N\\'{e}el temperature ($T_\\mathrm{N} \\approx 118~\\mathrm{K}$), the phonon spectrum becomes strongly anisotropic, reflecting the underlying zigzag antiferromagnetic order. In contrast, a prominent excitation at $122~\\mathrm{cm}^{-1}$ ($15$~meV) is polarization-independent, hardens on cooling, and splits linearly with magnetic field, identifying its magnetic origin. From absolute transmission and Faraday rotation, we ","authors_text":"Alexey Kuzmenko, Dirk van der Marel, Dumitru Dumcenco, Itzik Kapon, Kartik Panda, Nimrod Bachar","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-07-23T06:11:44Z","title":"Coupling of magnetic and lattice collective excitations in the 2D van der Waals antiferromagnet FePS$_{3}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.17238","kind":"arxiv","version":3},"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:a17402fda5c66e04a849bf69bd7a6da9bcb3b0773c2244255b0566c6de6521f3","target":"record","created_at":"2026-06-10T01:08:28Z","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":"bba47f360a267b79e407e45f01cc2b8da83bf42009ec9746344edbca73e59815","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2025-07-23T06:11:44Z","title_canon_sha256":"366e2d1e5db7da2a4d1569bf6a5a40877ac18b42d8e866151c83bf669bc9e3b1"},"schema_version":"1.0","source":{"id":"2507.17238","kind":"arxiv","version":3}},"canonical_sha256":"647534fb155c424aa6a1b3229112c4fc5e60d7da80dff5d3243514d9da49611f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"647534fb155c424aa6a1b3229112c4fc5e60d7da80dff5d3243514d9da49611f","first_computed_at":"2026-06-10T01:08:28.672711Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:08:28.672711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xClL8EwcoOPckJOOHQ9PO3Mk6K4qMKkpbiLJGbjPzcHASlV8fy0fPOl2oEy5UF4VQNKT+kl5te55QTfGW11uAw==","signature_status":"signed_v1","signed_at":"2026-06-10T01:08:28.673797Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.17238","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a17402fda5c66e04a849bf69bd7a6da9bcb3b0773c2244255b0566c6de6521f3","sha256:d3fe6354b720742b5d9bf261b3f20b9eb06d1e10abcf2e10606889642b81538e"],"state_sha256":"7d4c45784e41dc8d3ebeb7e79c5d2d25f0edbf0f5b3475a505641cbc34811a5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jm9zVgY1gVjVLNMBnW5wykncbNu9V58JlMGxj4Fp4A57FvCKOlarVXKN07El3CB6Y7ff+kOCUUd0t/+kwvhHBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T12:11:09.943444Z","bundle_sha256":"14e793d14f542c4bb75d2376862e6ba1bde1660b1a33fe4a6c4589eb777a3a07"}}