{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:4GV7WDOC2DQ2W4CICOXC43AFQ7","short_pith_number":"pith:4GV7WDOC","canonical_record":{"source":{"id":"2608.05796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-06T09:30:58Z","cross_cats_sorted":["nlin.PS"],"title_canon_sha256":"dcde34284da2211bf36573dcaca7e045bcc6927e4085f0ef21954c0a286c494b","abstract_canon_sha256":"c571c959835e072cbaf46db79f2b0543f2edf7c03441091ca565ddd4b2339a52"},"schema_version":"1.0"},"canonical_sha256":"e1abfb0dc2d0e1ab704813ae2e6c0587d509077defee7a6530b08de77cf4d9ba","source":{"kind":"arxiv","id":"2608.05796","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.05796","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"2608.05796v1","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.05796","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"4GV7WDOC2DQ2","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_16","alias_value":"4GV7WDOC2DQ2W4CI","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_8","alias_value":"4GV7WDOC","created_at":"2026-08-07T00:52:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:4GV7WDOC2DQ2W4CICOXC43AFQ7","target":"record","payload":{"canonical_record":{"source":{"id":"2608.05796","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-06T09:30:58Z","cross_cats_sorted":["nlin.PS"],"title_canon_sha256":"dcde34284da2211bf36573dcaca7e045bcc6927e4085f0ef21954c0a286c494b","abstract_canon_sha256":"c571c959835e072cbaf46db79f2b0543f2edf7c03441091ca565ddd4b2339a52"},"schema_version":"1.0"},"canonical_sha256":"e1abfb0dc2d0e1ab704813ae2e6c0587d509077defee7a6530b08de77cf4d9ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-07T00:52:46.041203Z","signature_b64":"k54TZoKVCUqKOvl4DUO2kTQoX0yjEZPcQAFEdR+/1ajy9KL4RJdSjGOjA6td7aSD6f7cAFpUKWIAbNMFVqd8AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1abfb0dc2d0e1ab704813ae2e6c0587d509077defee7a6530b08de77cf4d9ba","last_reissued_at":"2026-08-07T00:52:46.039798Z","signature_status":"signed_v1","first_computed_at":"2026-08-07T00:52:46.039798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.05796","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":"2026-08-07T00:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u10D6gFRftzCwNpQxskpQO6TeATiHH6o6hQTHa+/w/Rw+94gd50Whqgu9lo2QTsiysAy3mUaOPwlkUBudGw6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T16:23:48.353693Z"},"content_sha256":"b6f2053cc94ae7e8746761ae500ad75de37ed4d4b6d6011b79c4714cb521fa1a","schema_version":"1.0","event_id":"sha256:b6f2053cc94ae7e8746761ae500ad75de37ed4d4b6d6011b79c4714cb521fa1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:4GV7WDOC2DQ2W4CICOXC43AFQ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Abruptly autofocusing waves enter space-time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.PS"],"primary_cat":"physics.optics","authors_text":"Demetrios N. Christodoulides, Nikolaos K. Efremidis","submitted_at":"2026-08-06T09:30:58Z","abstract_excerpt":"Whereas conventional Gaussian focusing gradually concentrates optical energy around the focal plane, abruptly autofocusing waves maintain a low peak intensity over most of their evolution before undergoing a sudden, high-contrast intensity surge at a prescribed focus. Since their introduction in 2010, their two-dimensional spatial realizations have enabled applications ranging from particle manipulation and material processing to terahertz generation and nonlinear optics. The recent work of Cao et al. marks the transition from (2+1)-dimensional spatial autofocusing to the full space-time domai"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.05796","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.05796/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":"2026-08-07T00:52:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zAf6nKh2drvreFQ3B3vtt7FTURGRpgPceFrPMgjb157wztezfqxrsbBZFBhacPs1GBfdEbMM7+l9IyQ0fXwiDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T16:23:48.354580Z"},"content_sha256":"cb2e938e956186c39845364ede8fb6fdc81a64d1b81de0a568802b5a5723047a","schema_version":"1.0","event_id":"sha256:cb2e938e956186c39845364ede8fb6fdc81a64d1b81de0a568802b5a5723047a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7/bundle.json","state_url":"https://pith.science/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7/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":"2026-08-13T16:23:48Z","links":{"resolver":"https://pith.science/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7","bundle":"https://pith.science/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7/bundle.json","state":"https://pith.science/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4GV7WDOC2DQ2W4CICOXC43AFQ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4GV7WDOC2DQ2W4CICOXC43AFQ7","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":"c571c959835e072cbaf46db79f2b0543f2edf7c03441091ca565ddd4b2339a52","cross_cats_sorted":["nlin.PS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-06T09:30:58Z","title_canon_sha256":"dcde34284da2211bf36573dcaca7e045bcc6927e4085f0ef21954c0a286c494b"},"schema_version":"1.0","source":{"id":"2608.05796","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.05796","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"arxiv_version","alias_value":"2608.05796v1","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.05796","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_12","alias_value":"4GV7WDOC2DQ2","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_16","alias_value":"4GV7WDOC2DQ2W4CI","created_at":"2026-08-07T00:52:46Z"},{"alias_kind":"pith_short_8","alias_value":"4GV7WDOC","created_at":"2026-08-07T00:52:46Z"}],"graph_snapshots":[{"event_id":"sha256:cb2e938e956186c39845364ede8fb6fdc81a64d1b81de0a568802b5a5723047a","target":"graph","created_at":"2026-08-07T00:52:46Z","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/2608.05796/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Whereas conventional Gaussian focusing gradually concentrates optical energy around the focal plane, abruptly autofocusing waves maintain a low peak intensity over most of their evolution before undergoing a sudden, high-contrast intensity surge at a prescribed focus. Since their introduction in 2010, their two-dimensional spatial realizations have enabled applications ranging from particle manipulation and material processing to terahertz generation and nonlinear optics. The recent work of Cao et al. marks the transition from (2+1)-dimensional spatial autofocusing to the full space-time domai","authors_text":"Demetrios N. Christodoulides, Nikolaos K. Efremidis","cross_cats":["nlin.PS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-06T09:30:58Z","title":"Abruptly autofocusing waves enter space-time"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.05796","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:b6f2053cc94ae7e8746761ae500ad75de37ed4d4b6d6011b79c4714cb521fa1a","target":"record","created_at":"2026-08-07T00:52:46Z","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":"c571c959835e072cbaf46db79f2b0543f2edf7c03441091ca565ddd4b2339a52","cross_cats_sorted":["nlin.PS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-08-06T09:30:58Z","title_canon_sha256":"dcde34284da2211bf36573dcaca7e045bcc6927e4085f0ef21954c0a286c494b"},"schema_version":"1.0","source":{"id":"2608.05796","kind":"arxiv","version":1}},"canonical_sha256":"e1abfb0dc2d0e1ab704813ae2e6c0587d509077defee7a6530b08de77cf4d9ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1abfb0dc2d0e1ab704813ae2e6c0587d509077defee7a6530b08de77cf4d9ba","first_computed_at":"2026-08-07T00:52:46.039798Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-07T00:52:46.039798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k54TZoKVCUqKOvl4DUO2kTQoX0yjEZPcQAFEdR+/1ajy9KL4RJdSjGOjA6td7aSD6f7cAFpUKWIAbNMFVqd8AA==","signature_status":"signed_v1","signed_at":"2026-08-07T00:52:46.041203Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.05796","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6f2053cc94ae7e8746761ae500ad75de37ed4d4b6d6011b79c4714cb521fa1a","sha256:cb2e938e956186c39845364ede8fb6fdc81a64d1b81de0a568802b5a5723047a"],"state_sha256":"434efa9e2b41d7ab11f6a603befdb76884b9f53d0c06a32dab9eaca2ebe40689"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jWvbwlQily6hprJ32VRwQhUauJ+D+oQJ/qRyOywNsR4xp7D9Jju74VJLNRSmL50Zqg7064YdWYT9hRFS3DJKDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T16:23:48.392140Z","bundle_sha256":"e808c0d446b95725269dbf3839ad02bbff45c65bdf98c440537693caa2871966"}}