{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:2ROS5LI3Y5FSOTYDNHJALOB45M","short_pith_number":"pith:2ROS5LI3","canonical_record":{"source":{"id":"1407.7323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-28T05:08:23Z","cross_cats_sorted":[],"title_canon_sha256":"25fb2be479a9e0a4535307aa1c9aa134eb59ff51e52fb3e9dc794538672dcfc7","abstract_canon_sha256":"f649be9a34899d8db814ed236f2662d082ab9440dc2b42468ad406d2e4fa5f44"},"schema_version":"1.0"},"canonical_sha256":"d45d2ead1bc74b274f0369d205b83ceb3c0fe69c05eb8acb125e42bb40f3e3e8","source":{"kind":"arxiv","id":"1407.7323","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7323","created_at":"2026-05-18T01:42:29Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7323v1","created_at":"2026-05-18T01:42:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7323","created_at":"2026-05-18T01:42:29Z"},{"alias_kind":"pith_short_12","alias_value":"2ROS5LI3Y5FS","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2ROS5LI3Y5FSOTYD","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2ROS5LI3","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:2ROS5LI3Y5FSOTYDNHJALOB45M","target":"record","payload":{"canonical_record":{"source":{"id":"1407.7323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-28T05:08:23Z","cross_cats_sorted":[],"title_canon_sha256":"25fb2be479a9e0a4535307aa1c9aa134eb59ff51e52fb3e9dc794538672dcfc7","abstract_canon_sha256":"f649be9a34899d8db814ed236f2662d082ab9440dc2b42468ad406d2e4fa5f44"},"schema_version":"1.0"},"canonical_sha256":"d45d2ead1bc74b274f0369d205b83ceb3c0fe69c05eb8acb125e42bb40f3e3e8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:29.448417Z","signature_b64":"6H2e62EHAfeFwMf3740QaawkIKySpC+NJhCZmt5aapkyZg/HaMKEC80CFIRwHhO6kehdLqAwU34VzSZC/E/RBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d45d2ead1bc74b274f0369d205b83ceb3c0fe69c05eb8acb125e42bb40f3e3e8","last_reissued_at":"2026-05-18T01:42:29.447656Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:29.447656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.7323","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":"2026-05-18T01:42:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"75gREFN1/lp4AmvldGzqn0rTjiQD77wjh2IApv5fXKEAhiJ+/iR1AnvuDUjllq0NxKCZZKle4e8H3MGUQ5LCCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:27:54.093871Z"},"content_sha256":"b258e84dcd1e90ba55121a8d4e1ca9b75c3948cdd853da89f8df27df389b5db7","schema_version":"1.0","event_id":"sha256:b258e84dcd1e90ba55121a8d4e1ca9b75c3948cdd853da89f8df27df389b5db7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:2ROS5LI3Y5FSOTYDNHJALOB45M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Terahertz radiation induced by coherent phonon generation via impulsive stimulated Raman scattering in paratellurite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"H. Okamoto, M. Sotome, N. Kida, R. Takeda","submitted_at":"2014-07-28T05:08:23Z","abstract_excerpt":"We report on the observation of terahertz radiation in a non-centrosymmetric insulating oxide, paratellurite ($\\alpha$-TeO$_2$) by irradiation of a femtosecond laser pulse at room temperature. In the power spectrum of the terahertz radiation, an intensity fringe pattern with a period of $\\sim$ 0.25 THz shows up below 3 THz. It can be reproduced by taking into account the effective generation length for the terahertz radiation with a poor phase-matching condition. In addition, a temporal oscillation component appears in the radiated terahertz wave with a frequency of $\\sim$ 3.71 THz, which is i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7323","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":"2026-05-18T01:42:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ZJEpKLscvevCmLgBfxdyuLjWtZdTNTs4dyT9kOO0iXCgCTtMJfsn7dZ2MoQOig9jxrc0Nd+12RiOLBxqdkQCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:27:54.094208Z"},"content_sha256":"05186ae995e1d7009b820b79c384ee818bb54be6844fc4bc9fe417c5093e4a24","schema_version":"1.0","event_id":"sha256:05186ae995e1d7009b820b79c384ee818bb54be6844fc4bc9fe417c5093e4a24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ROS5LI3Y5FSOTYDNHJALOB45M/bundle.json","state_url":"https://pith.science/pith/2ROS5LI3Y5FSOTYDNHJALOB45M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ROS5LI3Y5FSOTYDNHJALOB45M/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":"2026-05-28T11:27:54Z","links":{"resolver":"https://pith.science/pith/2ROS5LI3Y5FSOTYDNHJALOB45M","bundle":"https://pith.science/pith/2ROS5LI3Y5FSOTYDNHJALOB45M/bundle.json","state":"https://pith.science/pith/2ROS5LI3Y5FSOTYDNHJALOB45M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ROS5LI3Y5FSOTYDNHJALOB45M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2ROS5LI3Y5FSOTYDNHJALOB45M","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":"f649be9a34899d8db814ed236f2662d082ab9440dc2b42468ad406d2e4fa5f44","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-28T05:08:23Z","title_canon_sha256":"25fb2be479a9e0a4535307aa1c9aa134eb59ff51e52fb3e9dc794538672dcfc7"},"schema_version":"1.0","source":{"id":"1407.7323","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.7323","created_at":"2026-05-18T01:42:29Z"},{"alias_kind":"arxiv_version","alias_value":"1407.7323v1","created_at":"2026-05-18T01:42:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.7323","created_at":"2026-05-18T01:42:29Z"},{"alias_kind":"pith_short_12","alias_value":"2ROS5LI3Y5FS","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2ROS5LI3Y5FSOTYD","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2ROS5LI3","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:05186ae995e1d7009b820b79c384ee818bb54be6844fc4bc9fe417c5093e4a24","target":"graph","created_at":"2026-05-18T01:42:29Z","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":"We report on the observation of terahertz radiation in a non-centrosymmetric insulating oxide, paratellurite ($\\alpha$-TeO$_2$) by irradiation of a femtosecond laser pulse at room temperature. In the power spectrum of the terahertz radiation, an intensity fringe pattern with a period of $\\sim$ 0.25 THz shows up below 3 THz. It can be reproduced by taking into account the effective generation length for the terahertz radiation with a poor phase-matching condition. In addition, a temporal oscillation component appears in the radiated terahertz wave with a frequency of $\\sim$ 3.71 THz, which is i","authors_text":"H. Okamoto, M. Sotome, N. Kida, R. Takeda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-28T05:08:23Z","title":"Terahertz radiation induced by coherent phonon generation via impulsive stimulated Raman scattering in paratellurite"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.7323","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:b258e84dcd1e90ba55121a8d4e1ca9b75c3948cdd853da89f8df27df389b5db7","target":"record","created_at":"2026-05-18T01:42:29Z","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":"f649be9a34899d8db814ed236f2662d082ab9440dc2b42468ad406d2e4fa5f44","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-28T05:08:23Z","title_canon_sha256":"25fb2be479a9e0a4535307aa1c9aa134eb59ff51e52fb3e9dc794538672dcfc7"},"schema_version":"1.0","source":{"id":"1407.7323","kind":"arxiv","version":1}},"canonical_sha256":"d45d2ead1bc74b274f0369d205b83ceb3c0fe69c05eb8acb125e42bb40f3e3e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d45d2ead1bc74b274f0369d205b83ceb3c0fe69c05eb8acb125e42bb40f3e3e8","first_computed_at":"2026-05-18T01:42:29.447656Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:29.447656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6H2e62EHAfeFwMf3740QaawkIKySpC+NJhCZmt5aapkyZg/HaMKEC80CFIRwHhO6kehdLqAwU34VzSZC/E/RBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:29.448417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.7323","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b258e84dcd1e90ba55121a8d4e1ca9b75c3948cdd853da89f8df27df389b5db7","sha256:05186ae995e1d7009b820b79c384ee818bb54be6844fc4bc9fe417c5093e4a24"],"state_sha256":"dc8cf255d6fed8cf6e5c4a5aea824bc0936640b415c5f974bd5633f3f46eba5c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4+12wlnXnzkRT55yCrE9IBfm+piC7RF5Qc0p5AfBSEFJSKu1ObkKpbXJn1CMJzj5mopd8WcJJXMfHL32Gty+CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:27:54.096240Z","bundle_sha256":"c8a95b980ff37a5d593ad8210a40e04332a9a8030a84621bed36713326d46bdb"}}