{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:63X3CXFXSQQOC6EWQU3IX2SFFC","short_pith_number":"pith:63X3CXFX","canonical_record":{"source":{"id":"1407.1628","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-07T08:56:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"9bf18f07b72ce2e75d5f79cffd4d3ed56f9829179ec92ae7a3e9233ad9f62a72","abstract_canon_sha256":"a366b20e3b5b2f7298e4495885b54b8e5b0b067ef9c7246039c2948edf9d28e7"},"schema_version":"1.0"},"canonical_sha256":"f6efb15cb79420e1789685368bea4528a94c0c65ab07fd08f84bdcc44a0842bc","source":{"kind":"arxiv","id":"1407.1628","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.1628","created_at":"2026-05-18T02:48:10Z"},{"alias_kind":"arxiv_version","alias_value":"1407.1628v1","created_at":"2026-05-18T02:48:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1628","created_at":"2026-05-18T02:48:10Z"},{"alias_kind":"pith_short_12","alias_value":"63X3CXFXSQQO","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"63X3CXFXSQQOC6EW","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"63X3CXFX","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:63X3CXFXSQQOC6EWQU3IX2SFFC","target":"record","payload":{"canonical_record":{"source":{"id":"1407.1628","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-07T08:56:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"9bf18f07b72ce2e75d5f79cffd4d3ed56f9829179ec92ae7a3e9233ad9f62a72","abstract_canon_sha256":"a366b20e3b5b2f7298e4495885b54b8e5b0b067ef9c7246039c2948edf9d28e7"},"schema_version":"1.0"},"canonical_sha256":"f6efb15cb79420e1789685368bea4528a94c0c65ab07fd08f84bdcc44a0842bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:10.877819Z","signature_b64":"/PYTZvQ1AgOJmDbOyIudvhRh4VMilS0ghbqNVqV9V1pmul1edbBB9a/CIAyg2BLM4gHU4MjWG67d9eWjU2TzBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f6efb15cb79420e1789685368bea4528a94c0c65ab07fd08f84bdcc44a0842bc","last_reissued_at":"2026-05-18T02:48:10.877206Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:10.877206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.1628","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":"2026-05-18T02:48:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cnsu+M4Z5oVkwHA8QbUhvsWL+I8Ot3/NA0JdlXdsqXeljYr32KMuLWZGy9mpHNVOFzgA+fKtyfsXqn5OjACDAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T20:41:21.552176Z"},"content_sha256":"9d2ee1d52d720fda16ed9be46f120388e726f2e2fd032fcafde21ca66ae6caae","schema_version":"1.0","event_id":"sha256:9d2ee1d52d720fda16ed9be46f120388e726f2e2fd032fcafde21ca66ae6caae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:63X3CXFXSQQOC6EWQU3IX2SFFC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stratified dispersive model for material characterization using terahertz time-domain spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A.B. Kuzmenko, H. Merbold, J.L.M. van Mechelen","submitted_at":"2014-07-07T08:56:53Z","abstract_excerpt":"We propose a novel THz material analysis approach which provides highly accurate material parameters and can be used for industrial quality control. The method treats the inspected material within its environment locally as a stratified system and describes the light-matter interaction of each layer in a realistic way. The approach is illustrated in the time-domain and frequency-domain for two potential fields of implementation of THz technology: quality control of (coated) paper sheets and car paint multilayers, both measured in humid air."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1628","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":"2026-05-18T02:48:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EpMQjrSsDvfcIWhpdi9kar/XU1Rw3Y+qqepPa0EOMFOeV7DATxQQh91jclkhC3n/W8nM6JSOVO/nZ/l7QZNEAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T20:41:21.552849Z"},"content_sha256":"eeb89774b9ee3db8dc8115778be16cf5158086cc58f8e26d9b7b3e55ad6632f4","schema_version":"1.0","event_id":"sha256:eeb89774b9ee3db8dc8115778be16cf5158086cc58f8e26d9b7b3e55ad6632f4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/63X3CXFXSQQOC6EWQU3IX2SFFC/bundle.json","state_url":"https://pith.science/pith/63X3CXFXSQQOC6EWQU3IX2SFFC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/63X3CXFXSQQOC6EWQU3IX2SFFC/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":"2026-05-23T20:41:21Z","links":{"resolver":"https://pith.science/pith/63X3CXFXSQQOC6EWQU3IX2SFFC","bundle":"https://pith.science/pith/63X3CXFXSQQOC6EWQU3IX2SFFC/bundle.json","state":"https://pith.science/pith/63X3CXFXSQQOC6EWQU3IX2SFFC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/63X3CXFXSQQOC6EWQU3IX2SFFC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:63X3CXFXSQQOC6EWQU3IX2SFFC","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":"a366b20e3b5b2f7298e4495885b54b8e5b0b067ef9c7246039c2948edf9d28e7","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-07T08:56:53Z","title_canon_sha256":"9bf18f07b72ce2e75d5f79cffd4d3ed56f9829179ec92ae7a3e9233ad9f62a72"},"schema_version":"1.0","source":{"id":"1407.1628","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.1628","created_at":"2026-05-18T02:48:10Z"},{"alias_kind":"arxiv_version","alias_value":"1407.1628v1","created_at":"2026-05-18T02:48:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1628","created_at":"2026-05-18T02:48:10Z"},{"alias_kind":"pith_short_12","alias_value":"63X3CXFXSQQO","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"63X3CXFXSQQOC6EW","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"63X3CXFX","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:eeb89774b9ee3db8dc8115778be16cf5158086cc58f8e26d9b7b3e55ad6632f4","target":"graph","created_at":"2026-05-18T02:48:10Z","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 propose a novel THz material analysis approach which provides highly accurate material parameters and can be used for industrial quality control. The method treats the inspected material within its environment locally as a stratified system and describes the light-matter interaction of each layer in a realistic way. The approach is illustrated in the time-domain and frequency-domain for two potential fields of implementation of THz technology: quality control of (coated) paper sheets and car paint multilayers, both measured in humid air.","authors_text":"A.B. Kuzmenko, H. Merbold, J.L.M. van Mechelen","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-07T08:56:53Z","title":"Stratified dispersive model for material characterization using terahertz time-domain spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1628","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":"sha256:9d2ee1d52d720fda16ed9be46f120388e726f2e2fd032fcafde21ca66ae6caae","target":"record","created_at":"2026-05-18T02:48:10Z","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":"a366b20e3b5b2f7298e4495885b54b8e5b0b067ef9c7246039c2948edf9d28e7","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-07T08:56:53Z","title_canon_sha256":"9bf18f07b72ce2e75d5f79cffd4d3ed56f9829179ec92ae7a3e9233ad9f62a72"},"schema_version":"1.0","source":{"id":"1407.1628","kind":"arxiv","version":1}},"canonical_sha256":"f6efb15cb79420e1789685368bea4528a94c0c65ab07fd08f84bdcc44a0842bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f6efb15cb79420e1789685368bea4528a94c0c65ab07fd08f84bdcc44a0842bc","first_computed_at":"2026-05-18T02:48:10.877206Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:48:10.877206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/PYTZvQ1AgOJmDbOyIudvhRh4VMilS0ghbqNVqV9V1pmul1edbBB9a/CIAyg2BLM4gHU4MjWG67d9eWjU2TzBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:48:10.877819Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.1628","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d2ee1d52d720fda16ed9be46f120388e726f2e2fd032fcafde21ca66ae6caae","sha256:eeb89774b9ee3db8dc8115778be16cf5158086cc58f8e26d9b7b3e55ad6632f4"],"state_sha256":"1a57ed4e821101016c030f927037964e0c2dd4b95de1dc2f9fb7a43b35170521"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u0lywypTcBa1FdqIF/0PEEgTyb8pCXZzdSXlHcd8lMXOBJx9nnMkjT5yOc1xzTRakJe8Aaaa0cWhiGgRZ6d1Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T20:41:21.556174Z","bundle_sha256":"aaea042d252e1fa1356830af3a693a7cf16ca1ca3514221c5f04ee6f9b8d9343"}}