{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:ZJVLILPYCL27IXMCODIYYVLS62","short_pith_number":"pith:ZJVLILPY","canonical_record":{"source":{"id":"2505.03658","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-05-06T16:02:38Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"89202371526594e2cbdf225a60da0c3d7531c60d1a7fc5c06dd6511c01fb44ac","abstract_canon_sha256":"acd77253abfdfb9628a44d1f3e03ecb315147f9bfc30adc3d88cfe5ebe6829d6"},"schema_version":"1.0"},"canonical_sha256":"ca6ab42df812f5f45d8270d18c5572f6aaaf6401fe8263174e4120678cd936db","source":{"kind":"arxiv","id":"2505.03658","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.03658","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"arxiv_version","alias_value":"2505.03658v1","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.03658","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"pith_short_12","alias_value":"ZJVLILPYCL27","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"pith_short_16","alias_value":"ZJVLILPYCL27IXMC","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"pith_short_8","alias_value":"ZJVLILPY","created_at":"2026-07-05T10:59:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:ZJVLILPYCL27IXMCODIYYVLS62","target":"record","payload":{"canonical_record":{"source":{"id":"2505.03658","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-05-06T16:02:38Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"89202371526594e2cbdf225a60da0c3d7531c60d1a7fc5c06dd6511c01fb44ac","abstract_canon_sha256":"acd77253abfdfb9628a44d1f3e03ecb315147f9bfc30adc3d88cfe5ebe6829d6"},"schema_version":"1.0"},"canonical_sha256":"ca6ab42df812f5f45d8270d18c5572f6aaaf6401fe8263174e4120678cd936db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:59:20.088775Z","signature_b64":"yNURD3sc/6xMGlESkv+Nz1lcq2r4TfHAvSEUQSvEdP38Tl1aRhqMrN5v35Atwa4HbvpvCy2TXM19ICM4Y3CKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca6ab42df812f5f45d8270d18c5572f6aaaf6401fe8263174e4120678cd936db","last_reissued_at":"2026-07-05T10:59:20.088332Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:59:20.088332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.03658","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":"2026-07-05T10:59:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b7Bp6W9QMg0nTXjb3kj+syqkiQs9WZ941iHI/9SWKtF8tGfCBlX0GJsnXb6VQIEY0mTacluR4mmCbWPHIHUVAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T00:43:31.671149Z"},"content_sha256":"3c58c68fc03dcec9ccb2bd816a72423fd41d0343b35556c258b477c0594e5721","schema_version":"1.0","event_id":"sha256:3c58c68fc03dcec9ccb2bd816a72423fd41d0343b35556c258b477c0594e5721"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:ZJVLILPYCL27IXMCODIYYVLS62","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrafast Non-Hermitian Skin Effect","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.optics","authors_text":"Alexander Dikopoltsev, Barbara Schneider, David Burghoff, J\\'erome Faist, Markus Bestler, Mattias Beck, Oded Zilberberg, Philipp T\\\"aschler","submitted_at":"2025-05-06T16:02:38Z","abstract_excerpt":"Topological phases of matter commonly feature protected states at their boundaries. Transferring this protection to time-metamaterials is extremely challenging, as it requires the generation of an abrupt interface between two topologically distinct bulks. Here, we realize and measure an ultrafast topological non-Hermitian skin mode bound to an interface circulating within the cavity of a fast-gain semiconductor laser. The nonlinear stationary state generated in such devices features a jump in the instantaneous frequency. We show that this discontinuity gives rise to a topological interface for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.03658","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/2505.03658/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":"2026-07-05T10:59:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jcuO+6dY7lkVQz6JADUzhtgDMMCFSLsKinP+4qpzljCQS8ey2Q1IFSD+ViX1A1cUlbwC6l+g3PPMTT8qsfEXAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T00:43:31.672449Z"},"content_sha256":"3348de5d655c2ed7d7393f3578769ac6385efa06e0affc3f5f1f1913714429ce","schema_version":"1.0","event_id":"sha256:3348de5d655c2ed7d7393f3578769ac6385efa06e0affc3f5f1f1913714429ce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJVLILPYCL27IXMCODIYYVLS62/bundle.json","state_url":"https://pith.science/pith/ZJVLILPYCL27IXMCODIYYVLS62/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJVLILPYCL27IXMCODIYYVLS62/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":"2026-08-17T00:43:31Z","links":{"resolver":"https://pith.science/pith/ZJVLILPYCL27IXMCODIYYVLS62","bundle":"https://pith.science/pith/ZJVLILPYCL27IXMCODIYYVLS62/bundle.json","state":"https://pith.science/pith/ZJVLILPYCL27IXMCODIYYVLS62/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJVLILPYCL27IXMCODIYYVLS62/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:ZJVLILPYCL27IXMCODIYYVLS62","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":"acd77253abfdfb9628a44d1f3e03ecb315147f9bfc30adc3d88cfe5ebe6829d6","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-05-06T16:02:38Z","title_canon_sha256":"89202371526594e2cbdf225a60da0c3d7531c60d1a7fc5c06dd6511c01fb44ac"},"schema_version":"1.0","source":{"id":"2505.03658","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.03658","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"arxiv_version","alias_value":"2505.03658v1","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.03658","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"pith_short_12","alias_value":"ZJVLILPYCL27","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"pith_short_16","alias_value":"ZJVLILPYCL27IXMC","created_at":"2026-07-05T10:59:20Z"},{"alias_kind":"pith_short_8","alias_value":"ZJVLILPY","created_at":"2026-07-05T10:59:20Z"}],"graph_snapshots":[{"event_id":"sha256:3348de5d655c2ed7d7393f3578769ac6385efa06e0affc3f5f1f1913714429ce","target":"graph","created_at":"2026-07-05T10:59:20Z","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/2505.03658/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Topological phases of matter commonly feature protected states at their boundaries. Transferring this protection to time-metamaterials is extremely challenging, as it requires the generation of an abrupt interface between two topologically distinct bulks. Here, we realize and measure an ultrafast topological non-Hermitian skin mode bound to an interface circulating within the cavity of a fast-gain semiconductor laser. The nonlinear stationary state generated in such devices features a jump in the instantaneous frequency. We show that this discontinuity gives rise to a topological interface for","authors_text":"Alexander Dikopoltsev, Barbara Schneider, David Burghoff, J\\'erome Faist, Markus Bestler, Mattias Beck, Oded Zilberberg, Philipp T\\\"aschler","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-05-06T16:02:38Z","title":"Ultrafast Non-Hermitian Skin Effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.03658","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":"sha256:3c58c68fc03dcec9ccb2bd816a72423fd41d0343b35556c258b477c0594e5721","target":"record","created_at":"2026-07-05T10:59:20Z","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":"acd77253abfdfb9628a44d1f3e03ecb315147f9bfc30adc3d88cfe5ebe6829d6","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2025-05-06T16:02:38Z","title_canon_sha256":"89202371526594e2cbdf225a60da0c3d7531c60d1a7fc5c06dd6511c01fb44ac"},"schema_version":"1.0","source":{"id":"2505.03658","kind":"arxiv","version":1}},"canonical_sha256":"ca6ab42df812f5f45d8270d18c5572f6aaaf6401fe8263174e4120678cd936db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca6ab42df812f5f45d8270d18c5572f6aaaf6401fe8263174e4120678cd936db","first_computed_at":"2026-07-05T10:59:20.088332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:59:20.088332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yNURD3sc/6xMGlESkv+Nz1lcq2r4TfHAvSEUQSvEdP38Tl1aRhqMrN5v35Atwa4HbvpvCy2TXM19ICM4Y3CKBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:59:20.088775Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.03658","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c58c68fc03dcec9ccb2bd816a72423fd41d0343b35556c258b477c0594e5721","sha256:3348de5d655c2ed7d7393f3578769ac6385efa06e0affc3f5f1f1913714429ce"],"state_sha256":"72dd4802fdf1d5f57b6b3b34049275f2df48f19f064a9bfc2e132159a265d342"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sva1MMZHT0dnR42ncp3tj2Jn7ULLIuqBCDb+sa6wdL/AZrxiZs7EqWDcHtLAMR2mogFXfZ6GoHY+r3d4nsqDCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T00:43:31.679947Z","bundle_sha256":"d10f5451b990a0415ab5c90a7cc74333ed530062d31792f35aaaf5adb89f0fe6"}}