{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:APMBA54LMQ3T5VXVUJFLNRWSAJ","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":"e641c9286fca29bcde4efd0e67eef5eab3d36fde1ba83aaf1e55afcab2d2eeb7","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-09-02T14:52:18Z","title_canon_sha256":"5d568ec28a29105e554df65aedfacd342668e1f82727abe614afff7e42b7b0fe"},"schema_version":"1.0","source":{"id":"1509.00726","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00726","created_at":"2026-05-18T01:34:06Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00726v1","created_at":"2026-05-18T01:34:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00726","created_at":"2026-05-18T01:34:06Z"},{"alias_kind":"pith_short_12","alias_value":"APMBA54LMQ3T","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"APMBA54LMQ3T5VXV","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"APMBA54L","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:1bfedd4ea29dfebd61c7300274078e87a33b0ee0cd230a1d540f5f2cfd9f4512","target":"graph","created_at":"2026-05-18T01:34:06Z","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":"Infrared (IR) spectroscopy, a well established tool for chemical analysis of diverse materials, has significant potential in biomedical applications. While the spatial resolution of traditional IR spectroscopy is limited by the wavelength of the IR light to the few micrometres, it has been shown that nanoscale chemical analysis can be obtained by detecting IR induced local heating photothermal response via Scanning Thermal Microscopy (SThM) or local thermomechanical expansion using Atomic Force Microscopy (AFM). This paper explores the potential of a pulsed ps pulse duration high power free el","authors_text":"Andy Wolski, Claire Tinker-Mill, David Allsop, Kevin Kjoller, Mark Surman, Michele R. F. Siggel-King, Oleg V. Kolosov, Peter D. Tovee, Peter Weightman","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-09-02T14:52:18Z","title":"Time dynamics of photothermal vs optoacoustic response in mid IR nanoscale biospectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00726","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":"sha256:3e00ed0b1cd530fc642ee4dfec0de5a1c79e90dda15589b5e40c3b575c90eab3","target":"record","created_at":"2026-05-18T01:34:06Z","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":"e641c9286fca29bcde4efd0e67eef5eab3d36fde1ba83aaf1e55afcab2d2eeb7","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-09-02T14:52:18Z","title_canon_sha256":"5d568ec28a29105e554df65aedfacd342668e1f82727abe614afff7e42b7b0fe"},"schema_version":"1.0","source":{"id":"1509.00726","kind":"arxiv","version":1}},"canonical_sha256":"03d810778b64373ed6f5a24ab6c6d2025dcc725e95086d45e501985fcb72f4fa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03d810778b64373ed6f5a24ab6c6d2025dcc725e95086d45e501985fcb72f4fa","first_computed_at":"2026-05-18T01:34:06.246864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:34:06.246864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yZ94lbYJH2GH4rI+BXZ35gjalnTDNALCbNBDrpzjxAJub9azZ4iBLC7XgdKVB93EsNER/mWdyMvEXNkcOkpVBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:34:06.247300Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.00726","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e00ed0b1cd530fc642ee4dfec0de5a1c79e90dda15589b5e40c3b575c90eab3","sha256:1bfedd4ea29dfebd61c7300274078e87a33b0ee0cd230a1d540f5f2cfd9f4512"],"state_sha256":"95983605511eaf5cfcb5f07ad752b10490279356b979b7c03d81ba65ff9314f6"}