{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:K7JTEBTDXAL733XPSKZVLTHRAD","short_pith_number":"pith:K7JTEBTD","canonical_record":{"source":{"id":"2502.03384","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-05T17:20:23Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"c02b4400a59904c38074a29a930300d10b3c619e484b0eacd763c4d5da826148","abstract_canon_sha256":"dfb77d5307e9d7df5634c20af95cf8f7843d0faf9018c266a5f5d6f0f5060528"},"schema_version":"1.0"},"canonical_sha256":"57d3320663b817fdeeef92b355ccf100e77850f22e61c9b2ec985ae1139af2a1","source":{"kind":"arxiv","id":"2502.03384","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.03384","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"arxiv_version","alias_value":"2502.03384v2","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.03384","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"pith_short_12","alias_value":"K7JTEBTDXAL7","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"pith_short_16","alias_value":"K7JTEBTDXAL733XP","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"pith_short_8","alias_value":"K7JTEBTD","created_at":"2026-07-05T10:11:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:K7JTEBTDXAL733XPSKZVLTHRAD","target":"record","payload":{"canonical_record":{"source":{"id":"2502.03384","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-05T17:20:23Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"c02b4400a59904c38074a29a930300d10b3c619e484b0eacd763c4d5da826148","abstract_canon_sha256":"dfb77d5307e9d7df5634c20af95cf8f7843d0faf9018c266a5f5d6f0f5060528"},"schema_version":"1.0"},"canonical_sha256":"57d3320663b817fdeeef92b355ccf100e77850f22e61c9b2ec985ae1139af2a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:11:33.291547Z","signature_b64":"LUMD0sSwCXDFJEcfHku5nModw+bZBAh529vfYu7Ty0z4aRG5t1q5UuuHPn75rbs4ngtZVxqYmIGrER3ZSF2vBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57d3320663b817fdeeef92b355ccf100e77850f22e61c9b2ec985ae1139af2a1","last_reissued_at":"2026-07-05T10:11:33.291076Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:11:33.291076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.03384","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:11:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QnmdxIpkojC1crUiROt9+AzJYf78NFVHL9g2T6ruUVPDNN6DwEhDtnWkz7G3KZlLRIEfVl5yykDOD2DVK/c8Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T23:51:00.072141Z"},"content_sha256":"09743bc60395852cbe307a9b3b7434f6e0b599ae9d3895ead561e5ff785b9670","schema_version":"1.0","event_id":"sha256:09743bc60395852cbe307a9b3b7434f6e0b599ae9d3895ead561e5ff785b9670"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:K7JTEBTDXAL733XPSKZVLTHRAD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spatial-offset pump-probe imaging of nonradiative dynamics at optical resolution","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.optics","authors_text":"Chen Yang, Deming Li, Guangrui Ding, Guo Chen, Hongjian He, Hongli Ni, Hongru Zeng, Ji-Xin Cheng, Mingsheng Li, Yifan Zhu, Yuhao Yuan, Zhongyue Guo","submitted_at":"2025-02-05T17:20:23Z","abstract_excerpt":"Nonradiative photothermal (PT) and photoacoustic (PA) processes have found widespread applications in imaging, stimulation, and therapy. Mapping the generation and propagation of PA and PT waves with resolution is important to elucidate how these fields interact with biological systems. To this end, we introduce spatial offset pump-probe imaging (SOPPI). By spatially offsetting the pump beam and the probe beam, SOPPI can image simultaneously PA and PT wave propagation with nanosecond temporal resolution, micrometer spatial resolution, 65 MHz detection bandwidth, and a sensitivity of 9.9 Pa noi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.03384","kind":"arxiv","version":2},"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/2502.03384/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":"2026-07-05T10:11:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t7Olc0onMMmeeW/cZ30vaWea+udZfAEsKQ+lF3yVxlbRQt/NuGXSmrkP65pC697Qx2GgTlY7I3yRhmhEXh4kAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T23:51:00.072540Z"},"content_sha256":"aee3c8d34fc3f289cb93d99b664e9467c720052d4c9175b9073743e1cab163f7","schema_version":"1.0","event_id":"sha256:aee3c8d34fc3f289cb93d99b664e9467c720052d4c9175b9073743e1cab163f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K7JTEBTDXAL733XPSKZVLTHRAD/bundle.json","state_url":"https://pith.science/pith/K7JTEBTDXAL733XPSKZVLTHRAD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K7JTEBTDXAL733XPSKZVLTHRAD/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":"2026-07-08T23:51:00Z","links":{"resolver":"https://pith.science/pith/K7JTEBTDXAL733XPSKZVLTHRAD","bundle":"https://pith.science/pith/K7JTEBTDXAL733XPSKZVLTHRAD/bundle.json","state":"https://pith.science/pith/K7JTEBTDXAL733XPSKZVLTHRAD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K7JTEBTDXAL733XPSKZVLTHRAD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:K7JTEBTDXAL733XPSKZVLTHRAD","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":"dfb77d5307e9d7df5634c20af95cf8f7843d0faf9018c266a5f5d6f0f5060528","cross_cats_sorted":["physics.app-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-05T17:20:23Z","title_canon_sha256":"c02b4400a59904c38074a29a930300d10b3c619e484b0eacd763c4d5da826148"},"schema_version":"1.0","source":{"id":"2502.03384","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.03384","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"arxiv_version","alias_value":"2502.03384v2","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.03384","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"pith_short_12","alias_value":"K7JTEBTDXAL7","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"pith_short_16","alias_value":"K7JTEBTDXAL733XP","created_at":"2026-07-05T10:11:33Z"},{"alias_kind":"pith_short_8","alias_value":"K7JTEBTD","created_at":"2026-07-05T10:11:33Z"}],"graph_snapshots":[{"event_id":"sha256:aee3c8d34fc3f289cb93d99b664e9467c720052d4c9175b9073743e1cab163f7","target":"graph","created_at":"2026-07-05T10:11:33Z","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/2502.03384/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nonradiative photothermal (PT) and photoacoustic (PA) processes have found widespread applications in imaging, stimulation, and therapy. Mapping the generation and propagation of PA and PT waves with resolution is important to elucidate how these fields interact with biological systems. To this end, we introduce spatial offset pump-probe imaging (SOPPI). By spatially offsetting the pump beam and the probe beam, SOPPI can image simultaneously PA and PT wave propagation with nanosecond temporal resolution, micrometer spatial resolution, 65 MHz detection bandwidth, and a sensitivity of 9.9 Pa noi","authors_text":"Chen Yang, Deming Li, Guangrui Ding, Guo Chen, Hongjian He, Hongli Ni, Hongru Zeng, Ji-Xin Cheng, Mingsheng Li, Yifan Zhu, Yuhao Yuan, Zhongyue Guo","cross_cats":["physics.app-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-05T17:20:23Z","title":"Spatial-offset pump-probe imaging of nonradiative dynamics at optical resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.03384","kind":"arxiv","version":2},"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":"sha256:09743bc60395852cbe307a9b3b7434f6e0b599ae9d3895ead561e5ff785b9670","target":"record","created_at":"2026-07-05T10:11:33Z","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":"dfb77d5307e9d7df5634c20af95cf8f7843d0faf9018c266a5f5d6f0f5060528","cross_cats_sorted":["physics.app-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-02-05T17:20:23Z","title_canon_sha256":"c02b4400a59904c38074a29a930300d10b3c619e484b0eacd763c4d5da826148"},"schema_version":"1.0","source":{"id":"2502.03384","kind":"arxiv","version":2}},"canonical_sha256":"57d3320663b817fdeeef92b355ccf100e77850f22e61c9b2ec985ae1139af2a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57d3320663b817fdeeef92b355ccf100e77850f22e61c9b2ec985ae1139af2a1","first_computed_at":"2026-07-05T10:11:33.291076Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:11:33.291076Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LUMD0sSwCXDFJEcfHku5nModw+bZBAh529vfYu7Ty0z4aRG5t1q5UuuHPn75rbs4ngtZVxqYmIGrER3ZSF2vBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:11:33.291547Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.03384","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09743bc60395852cbe307a9b3b7434f6e0b599ae9d3895ead561e5ff785b9670","sha256:aee3c8d34fc3f289cb93d99b664e9467c720052d4c9175b9073743e1cab163f7"],"state_sha256":"12a03b343de7214a1a044ad68b0877a88498cfc4bf839f1690f952b97046f66f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7MFQETuoJu/IlLpsWkolTBc+zGFnwylOC8vojTPIkuo4nXUP5s7GEmGO67Ua5r5ntvcjUEHwNWBaF0v24di8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T23:51:00.074848Z","bundle_sha256":"5fb2daf9796e52ab5722c199cb341d3dba232b5b2b63902e39480bf4f645f3c5"}}