{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:5JFZAYVX7MLTLW2VKIVMJLKANK","short_pith_number":"pith:5JFZAYVX","canonical_record":{"source":{"id":"1710.06966","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-10-19T00:14:07Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"608fbdaa48dbb2cbd69b2e50b7942a71aa644ad00cc7571d36c2fd3f783e04fc","abstract_canon_sha256":"fd5ac0b0cf28cbbd3e19b345a06474f254d6f3d91456a9601575733c6660d6a4"},"schema_version":"1.0"},"canonical_sha256":"ea4b9062b7fb1735db55522ac4ad406a84652fff22516480b488f64f8fbca18c","source":{"kind":"arxiv","id":"1710.06966","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.06966","created_at":"2026-05-17T23:56:30Z"},{"alias_kind":"arxiv_version","alias_value":"1710.06966v3","created_at":"2026-05-17T23:56:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.06966","created_at":"2026-05-17T23:56:30Z"},{"alias_kind":"pith_short_12","alias_value":"5JFZAYVX7MLT","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"5JFZAYVX7MLTLW2V","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"5JFZAYVX","created_at":"2026-05-18T12:31:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:5JFZAYVX7MLTLW2VKIVMJLKANK","target":"record","payload":{"canonical_record":{"source":{"id":"1710.06966","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-10-19T00:14:07Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"608fbdaa48dbb2cbd69b2e50b7942a71aa644ad00cc7571d36c2fd3f783e04fc","abstract_canon_sha256":"fd5ac0b0cf28cbbd3e19b345a06474f254d6f3d91456a9601575733c6660d6a4"},"schema_version":"1.0"},"canonical_sha256":"ea4b9062b7fb1735db55522ac4ad406a84652fff22516480b488f64f8fbca18c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:30.191145Z","signature_b64":"3ktMxtNzK2ciF6xq85Yz3H8OzI7POGnm2Jqp4Zz0fD2ktFhYFuWTvDX9cQ0LRWIqqGRevR4UZDSd8HEO4C7eDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea4b9062b7fb1735db55522ac4ad406a84652fff22516480b488f64f8fbca18c","last_reissued_at":"2026-05-17T23:56:30.190612Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:30.190612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.06966","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/qpL04jGmlBF9JCtR9BaQJghtKamvFP11BhOYFJBexObEi19X+lNOuiAAWWgb2q8+k2n/LEse3+gMvnpOmZHCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:35:19.588870Z"},"content_sha256":"dd6f35b3a203a810f16d8b2ccb39ee0dbed9f87aec2df3663f556f1cb8de396d","schema_version":"1.0","event_id":"sha256:dd6f35b3a203a810f16d8b2ccb39ee0dbed9f87aec2df3663f556f1cb8de396d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:5JFZAYVX7MLTLW2VKIVMJLKANK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear manifestations of photon acceleration in time-dependent metasurfaces: tunable broadband harmonics generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"physics.optics","authors_text":"Enam Chowdhury, Gennady Shvets, Kevin Werner, Maxim R. Shcherbakov, Noah Talisa, Zhiyuan Fan","submitted_at":"2017-10-19T00:14:07Z","abstract_excerpt":"Time-dependent nonlinear media, such as rapidly generated plasmas produced via laser ionization of gases, can increase the energy of individual laser photons and generate tunable high-order harmonic pulses. This phenomenon, known as photon acceleration, has traditionally required extreme-intensity laser pulses and macroscopic propagation lengths. Here, we report on a novel nonlinear material$-$an ultrathin semiconductor metasurface$-$that exhibits efficient photon acceleration at low intensities. We observe a signature nonlinear manifestation of photon acceleration: third-harmonic generation o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.06966","kind":"arxiv","version":3},"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":"2026-05-17T23:56:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H9jqsRXgMloo/baWDj4tb6TGjLbrMy4plunAdL8yXvNlS1TNnhXPiT3WMLFp+C2kDay3ZgG4bOfnXZU7tpXEBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:35:19.589696Z"},"content_sha256":"4543ce2b9ec560808942347abc9b198561722f303153689a380a2ad9895f8eb3","schema_version":"1.0","event_id":"sha256:4543ce2b9ec560808942347abc9b198561722f303153689a380a2ad9895f8eb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5JFZAYVX7MLTLW2VKIVMJLKANK/bundle.json","state_url":"https://pith.science/pith/5JFZAYVX7MLTLW2VKIVMJLKANK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5JFZAYVX7MLTLW2VKIVMJLKANK/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":"2026-06-10T01:35:19Z","links":{"resolver":"https://pith.science/pith/5JFZAYVX7MLTLW2VKIVMJLKANK","bundle":"https://pith.science/pith/5JFZAYVX7MLTLW2VKIVMJLKANK/bundle.json","state":"https://pith.science/pith/5JFZAYVX7MLTLW2VKIVMJLKANK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5JFZAYVX7MLTLW2VKIVMJLKANK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:5JFZAYVX7MLTLW2VKIVMJLKANK","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":"fd5ac0b0cf28cbbd3e19b345a06474f254d6f3d91456a9601575733c6660d6a4","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-10-19T00:14:07Z","title_canon_sha256":"608fbdaa48dbb2cbd69b2e50b7942a71aa644ad00cc7571d36c2fd3f783e04fc"},"schema_version":"1.0","source":{"id":"1710.06966","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.06966","created_at":"2026-05-17T23:56:30Z"},{"alias_kind":"arxiv_version","alias_value":"1710.06966v3","created_at":"2026-05-17T23:56:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.06966","created_at":"2026-05-17T23:56:30Z"},{"alias_kind":"pith_short_12","alias_value":"5JFZAYVX7MLT","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"5JFZAYVX7MLTLW2V","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"5JFZAYVX","created_at":"2026-05-18T12:31:00Z"}],"graph_snapshots":[{"event_id":"sha256:4543ce2b9ec560808942347abc9b198561722f303153689a380a2ad9895f8eb3","target":"graph","created_at":"2026-05-17T23:56:30Z","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":"Time-dependent nonlinear media, such as rapidly generated plasmas produced via laser ionization of gases, can increase the energy of individual laser photons and generate tunable high-order harmonic pulses. This phenomenon, known as photon acceleration, has traditionally required extreme-intensity laser pulses and macroscopic propagation lengths. Here, we report on a novel nonlinear material$-$an ultrathin semiconductor metasurface$-$that exhibits efficient photon acceleration at low intensities. We observe a signature nonlinear manifestation of photon acceleration: third-harmonic generation o","authors_text":"Enam Chowdhury, Gennady Shvets, Kevin Werner, Maxim R. Shcherbakov, Noah Talisa, Zhiyuan Fan","cross_cats":["physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-10-19T00:14:07Z","title":"Nonlinear manifestations of photon acceleration in time-dependent metasurfaces: tunable broadband harmonics generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.06966","kind":"arxiv","version":3},"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:dd6f35b3a203a810f16d8b2ccb39ee0dbed9f87aec2df3663f556f1cb8de396d","target":"record","created_at":"2026-05-17T23:56:30Z","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":"fd5ac0b0cf28cbbd3e19b345a06474f254d6f3d91456a9601575733c6660d6a4","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-10-19T00:14:07Z","title_canon_sha256":"608fbdaa48dbb2cbd69b2e50b7942a71aa644ad00cc7571d36c2fd3f783e04fc"},"schema_version":"1.0","source":{"id":"1710.06966","kind":"arxiv","version":3}},"canonical_sha256":"ea4b9062b7fb1735db55522ac4ad406a84652fff22516480b488f64f8fbca18c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea4b9062b7fb1735db55522ac4ad406a84652fff22516480b488f64f8fbca18c","first_computed_at":"2026-05-17T23:56:30.190612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:30.190612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3ktMxtNzK2ciF6xq85Yz3H8OzI7POGnm2Jqp4Zz0fD2ktFhYFuWTvDX9cQ0LRWIqqGRevR4UZDSd8HEO4C7eDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:30.191145Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.06966","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd6f35b3a203a810f16d8b2ccb39ee0dbed9f87aec2df3663f556f1cb8de396d","sha256:4543ce2b9ec560808942347abc9b198561722f303153689a380a2ad9895f8eb3"],"state_sha256":"91894d7c39896fe8a7d675d792a744c1442644bb6804b10d7ff96522e3956f1d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"emYH0wsfnuHtZJeDmvcbhajF/UjRii9q2c2eTS0aYDIxa6ur1f9JdyhQ3gc4thjFFEaR5igZZTXsP8BHlTEBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T01:35:19.594070Z","bundle_sha256":"f9df3522e26a265c42bef80f8a1971b5a863f19a8d23bc0c5228704d51162db8"}}