{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:MW7HCVRKC5OOFKFHEGRTKZUT5F","short_pith_number":"pith:MW7HCVRK","canonical_record":{"source":{"id":"2008.08732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-08-20T02:07:19Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"5f9a174df1bb2e11c0f00e64640a0715457c83e23c8929377e9ba89f9f475613","abstract_canon_sha256":"527b72e488cd9094885fe83d98c7e9b6345898545151ddafdfd5ffc8d42d13a5"},"schema_version":"1.0"},"canonical_sha256":"65be71562a175ce2a8a721a3356693e95a0f1503817afdacdb760907d3af16ec","source":{"kind":"arxiv","id":"2008.08732","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.08732","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"arxiv_version","alias_value":"2008.08732v1","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.08732","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"pith_short_12","alias_value":"MW7HCVRKC5OO","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"MW7HCVRKC5OOFKFH","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"MW7HCVRK","created_at":"2026-07-05T01:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:MW7HCVRKC5OOFKFHEGRTKZUT5F","target":"record","payload":{"canonical_record":{"source":{"id":"2008.08732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-08-20T02:07:19Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"5f9a174df1bb2e11c0f00e64640a0715457c83e23c8929377e9ba89f9f475613","abstract_canon_sha256":"527b72e488cd9094885fe83d98c7e9b6345898545151ddafdfd5ffc8d42d13a5"},"schema_version":"1.0"},"canonical_sha256":"65be71562a175ce2a8a721a3356693e95a0f1503817afdacdb760907d3af16ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:28:33.378487Z","signature_b64":"qtmnfqvZfaiAGnpyIJu/poauFpkgVKO/5XvNa4TrFLnvyljlpT2X43V8Nlu8K8fvhDLdvpBf6WqcbYNGXVoSDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"65be71562a175ce2a8a721a3356693e95a0f1503817afdacdb760907d3af16ec","last_reissued_at":"2026-07-05T01:28:33.378060Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:28:33.378060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.08732","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":"2026-07-05T01:28:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8b/gUbuDE4dpjA1jtPY4i9XgyV69fqLpkcmTVT3FUd2OUBIY+HdI2mpLtWL8L9U1Ea34Xc8C/daZZX0U00PJDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T18:42:43.105719Z"},"content_sha256":"685d94e45f4e033e1b9e13fbebe4b2fd9986473663db676dabe7fc579ce6b3d6","schema_version":"1.0","event_id":"sha256:685d94e45f4e033e1b9e13fbebe4b2fd9986473663db676dabe7fc579ce6b3d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:MW7HCVRKC5OOFKFHEGRTKZUT5F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of Light-induced Metastable Martensitic Anomaly Controlled by Single-Cycle Terahertz Pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"B. Song, C. B. Eom, C. Sundahl, C. Vaswani, I. E. Perakis, J-H. Kang, J. Wang, K-M Ho, L. Luo, M. Mootz, X. Yang, Y. Yao","submitted_at":"2020-08-20T02:07:19Z","abstract_excerpt":"We report on an ultrafast photoinduced phase transition with a strikingly long-lived Martensitic anomaly driven by above-threshold single-cycle terahertz (THz) pulses in Nb$_3$Sn. A non-thermal, THz-induced depletion of low frequency conductivity indicates increased gap splitting of high energy $\\Gamma_{12}$ bands by removal of their degeneracies which enhances the Martensitic phase. In contrast, optical pumping leads to a $\\Gamma_{12}$ gap melting. Such light-induced non-equilibrium Martensitic instability persists up to a critical temperature $\\sim$100 K, i.e., more than twice the equilibriu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.08732","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/2008.08732/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":"2026-07-05T01:28:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6jYZaI+G9hDB85wJswZstwtig8N7l+McbrWfRrld6XmwDn498AtjOITlRRnWX9LZU2ldIOUVGsH+i6P0p0avDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T18:42:43.106105Z"},"content_sha256":"e4f5baa2cd8e4ef8d6f818ed170de2bb937975c5fd36ad6f1e51dd53e0125d3b","schema_version":"1.0","event_id":"sha256:e4f5baa2cd8e4ef8d6f818ed170de2bb937975c5fd36ad6f1e51dd53e0125d3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F/bundle.json","state_url":"https://pith.science/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F/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":"2026-07-08T18:42:43Z","links":{"resolver":"https://pith.science/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F","bundle":"https://pith.science/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F/bundle.json","state":"https://pith.science/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MW7HCVRKC5OOFKFHEGRTKZUT5F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:MW7HCVRKC5OOFKFHEGRTKZUT5F","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":"527b72e488cd9094885fe83d98c7e9b6345898545151ddafdfd5ffc8d42d13a5","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-08-20T02:07:19Z","title_canon_sha256":"5f9a174df1bb2e11c0f00e64640a0715457c83e23c8929377e9ba89f9f475613"},"schema_version":"1.0","source":{"id":"2008.08732","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.08732","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"arxiv_version","alias_value":"2008.08732v1","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.08732","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"pith_short_12","alias_value":"MW7HCVRKC5OO","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"MW7HCVRKC5OOFKFH","created_at":"2026-07-05T01:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"MW7HCVRK","created_at":"2026-07-05T01:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:e4f5baa2cd8e4ef8d6f818ed170de2bb937975c5fd36ad6f1e51dd53e0125d3b","target":"graph","created_at":"2026-07-05T01:28:33Z","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/2008.08732/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on an ultrafast photoinduced phase transition with a strikingly long-lived Martensitic anomaly driven by above-threshold single-cycle terahertz (THz) pulses in Nb$_3$Sn. A non-thermal, THz-induced depletion of low frequency conductivity indicates increased gap splitting of high energy $\\Gamma_{12}$ bands by removal of their degeneracies which enhances the Martensitic phase. In contrast, optical pumping leads to a $\\Gamma_{12}$ gap melting. Such light-induced non-equilibrium Martensitic instability persists up to a critical temperature $\\sim$100 K, i.e., more than twice the equilibriu","authors_text":"B. Song, C. B. Eom, C. Sundahl, C. Vaswani, I. E. Perakis, J-H. Kang, J. Wang, K-M Ho, L. Luo, M. Mootz, X. Yang, Y. Yao","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-08-20T02:07:19Z","title":"Discovery of Light-induced Metastable Martensitic Anomaly Controlled by Single-Cycle Terahertz Pulses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.08732","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":"sha256:685d94e45f4e033e1b9e13fbebe4b2fd9986473663db676dabe7fc579ce6b3d6","target":"record","created_at":"2026-07-05T01:28:33Z","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":"527b72e488cd9094885fe83d98c7e9b6345898545151ddafdfd5ffc8d42d13a5","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-08-20T02:07:19Z","title_canon_sha256":"5f9a174df1bb2e11c0f00e64640a0715457c83e23c8929377e9ba89f9f475613"},"schema_version":"1.0","source":{"id":"2008.08732","kind":"arxiv","version":1}},"canonical_sha256":"65be71562a175ce2a8a721a3356693e95a0f1503817afdacdb760907d3af16ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"65be71562a175ce2a8a721a3356693e95a0f1503817afdacdb760907d3af16ec","first_computed_at":"2026-07-05T01:28:33.378060Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:28:33.378060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qtmnfqvZfaiAGnpyIJu/poauFpkgVKO/5XvNa4TrFLnvyljlpT2X43V8Nlu8K8fvhDLdvpBf6WqcbYNGXVoSDw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:28:33.378487Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.08732","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:685d94e45f4e033e1b9e13fbebe4b2fd9986473663db676dabe7fc579ce6b3d6","sha256:e4f5baa2cd8e4ef8d6f818ed170de2bb937975c5fd36ad6f1e51dd53e0125d3b"],"state_sha256":"b0b76f95c4bc3c5a1f3571ec4819673687cca8106c76c70e21d51743e98131ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lo6b6dje4GYJqOa3ck2LetK/uTm+UEr+T6EXgiGpNd74hwR/hL0166CcnSTRRepjlkKhOhELLUne5bqHYrSCBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T18:42:43.108270Z","bundle_sha256":"360851f7349e244827dc1723a2193fe3d929c5bb189e77fd8b7c9da181a96d48"}}