{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:MEMP3XL5WXNQDSQAL4KYZQ3Y3H","short_pith_number":"pith:MEMP3XL5","canonical_record":{"source":{"id":"2506.15521","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-06-18T14:56:16Z","cross_cats_sorted":["cond-mat.other","physics.optics"],"title_canon_sha256":"e1201305e81464965fe371d50bd5bec5eaa07126eb6de0bdd2870e4b71858e2e","abstract_canon_sha256":"a727092da8c09a96d4f31f3173c36d73c172cbb27a73957999ed93385c07b5f6"},"schema_version":"1.0"},"canonical_sha256":"6118fddd7db5db01ca005f158cc378d9fe7e4fdf165670263288dbb68fc40f7c","source":{"kind":"arxiv","id":"2506.15521","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.15521","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"arxiv_version","alias_value":"2506.15521v1","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.15521","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"pith_short_12","alias_value":"MEMP3XL5WXNQ","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"pith_short_16","alias_value":"MEMP3XL5WXNQDSQA","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"pith_short_8","alias_value":"MEMP3XL5","created_at":"2026-07-05T11:24:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:MEMP3XL5WXNQDSQAL4KYZQ3Y3H","target":"record","payload":{"canonical_record":{"source":{"id":"2506.15521","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-06-18T14:56:16Z","cross_cats_sorted":["cond-mat.other","physics.optics"],"title_canon_sha256":"e1201305e81464965fe371d50bd5bec5eaa07126eb6de0bdd2870e4b71858e2e","abstract_canon_sha256":"a727092da8c09a96d4f31f3173c36d73c172cbb27a73957999ed93385c07b5f6"},"schema_version":"1.0"},"canonical_sha256":"6118fddd7db5db01ca005f158cc378d9fe7e4fdf165670263288dbb68fc40f7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:24:25.016675Z","signature_b64":"JMk1zw4+EJ+7us1EFqqcLr4GcKnRSkq4nHhfHWSJEOB9K4QPr+342xx95rnqsDS3CbQs9fiyHnaP+zBr2mEzCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6118fddd7db5db01ca005f158cc378d9fe7e4fdf165670263288dbb68fc40f7c","last_reissued_at":"2026-07-05T11:24:25.016081Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:24:25.016081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.15521","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":"2026-07-05T11:24:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YEiuC5UyL7lSiBR3qB9UO0fm8m/uGZZjIGswQ46YWIyGKLFy3XHj4+L8k3YP5QeAV/NAl0I8qyYxx/VgasdeAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T00:41:29.984118Z"},"content_sha256":"0040545ae43166e5da48dc9f26c674596927ab4514e9ebcc9a7f8c4b5fe2740c","schema_version":"1.0","event_id":"sha256:0040545ae43166e5da48dc9f26c674596927ab4514e9ebcc9a7f8c4b5fe2740c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:MEMP3XL5WXNQDSQAL4KYZQ3Y3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of Kardar-Parisi-Zhang universal scaling in two dimensions","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.other","physics.optics"],"primary_cat":"quant-ph","authors_text":"Carl Philipp Zelle, Christian G. Mayer, David Laibacher, Johannes D\\\"ureth, Martin Kamp, Monika Emmerling, Romain Daviet, Sebastian Diehl, Sebastian Klembt, Siddhartha Dam, Simon Betzold, Simon Widmann, Sven H\\\"ofling","submitted_at":"2025-06-18T14:56:16Z","abstract_excerpt":"Equilibrium and nonequilibrium states of matter can exhibit fundamentally different behavior. A key example is the Kardar-Parisi-Zhang universality class in two spatial dimensions (2D KPZ), where microscopic deviations from equilibrium give rise to macroscopic scaling laws without equilibrium counterparts. While extensively studied theoretically, direct experimental evidence of 2D KPZ scaling has remained limited to interface growth so far. Here, we report the observation of universal scaling consistent with the KPZ universality class in 2D exciton-polariton condensates -- quantum fluids of li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.15521","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/2506.15521/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":"2026-07-05T11:24:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TqWsBDXPFiZpmmCJqn1I6ED3TuSWEEcEnUm5phm4L9Md0auX4YH76LlwV1/4NaB4IMxJdCph1ilKIuCQXZK7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T00:41:29.984626Z"},"content_sha256":"d92472d78744ff656dd01c0ff2de930333347d5bb7f27f25d3a65971afd75100","schema_version":"1.0","event_id":"sha256:d92472d78744ff656dd01c0ff2de930333347d5bb7f27f25d3a65971afd75100"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H/bundle.json","state_url":"https://pith.science/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H/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":"2026-08-16T00:41:29Z","links":{"resolver":"https://pith.science/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H","bundle":"https://pith.science/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H/bundle.json","state":"https://pith.science/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MEMP3XL5WXNQDSQAL4KYZQ3Y3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MEMP3XL5WXNQDSQAL4KYZQ3Y3H","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":"a727092da8c09a96d4f31f3173c36d73c172cbb27a73957999ed93385c07b5f6","cross_cats_sorted":["cond-mat.other","physics.optics"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-06-18T14:56:16Z","title_canon_sha256":"e1201305e81464965fe371d50bd5bec5eaa07126eb6de0bdd2870e4b71858e2e"},"schema_version":"1.0","source":{"id":"2506.15521","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.15521","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"arxiv_version","alias_value":"2506.15521v1","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.15521","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"pith_short_12","alias_value":"MEMP3XL5WXNQ","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"pith_short_16","alias_value":"MEMP3XL5WXNQDSQA","created_at":"2026-07-05T11:24:25Z"},{"alias_kind":"pith_short_8","alias_value":"MEMP3XL5","created_at":"2026-07-05T11:24:25Z"}],"graph_snapshots":[{"event_id":"sha256:d92472d78744ff656dd01c0ff2de930333347d5bb7f27f25d3a65971afd75100","target":"graph","created_at":"2026-07-05T11:24:25Z","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/2506.15521/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Equilibrium and nonequilibrium states of matter can exhibit fundamentally different behavior. A key example is the Kardar-Parisi-Zhang universality class in two spatial dimensions (2D KPZ), where microscopic deviations from equilibrium give rise to macroscopic scaling laws without equilibrium counterparts. While extensively studied theoretically, direct experimental evidence of 2D KPZ scaling has remained limited to interface growth so far. Here, we report the observation of universal scaling consistent with the KPZ universality class in 2D exciton-polariton condensates -- quantum fluids of li","authors_text":"Carl Philipp Zelle, Christian G. Mayer, David Laibacher, Johannes D\\\"ureth, Martin Kamp, Monika Emmerling, Romain Daviet, Sebastian Diehl, Sebastian Klembt, Siddhartha Dam, Simon Betzold, Simon Widmann, Sven H\\\"ofling","cross_cats":["cond-mat.other","physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-06-18T14:56:16Z","title":"Observation of Kardar-Parisi-Zhang universal scaling in two dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.15521","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":"sha256:0040545ae43166e5da48dc9f26c674596927ab4514e9ebcc9a7f8c4b5fe2740c","target":"record","created_at":"2026-07-05T11:24:25Z","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":"a727092da8c09a96d4f31f3173c36d73c172cbb27a73957999ed93385c07b5f6","cross_cats_sorted":["cond-mat.other","physics.optics"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2025-06-18T14:56:16Z","title_canon_sha256":"e1201305e81464965fe371d50bd5bec5eaa07126eb6de0bdd2870e4b71858e2e"},"schema_version":"1.0","source":{"id":"2506.15521","kind":"arxiv","version":1}},"canonical_sha256":"6118fddd7db5db01ca005f158cc378d9fe7e4fdf165670263288dbb68fc40f7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6118fddd7db5db01ca005f158cc378d9fe7e4fdf165670263288dbb68fc40f7c","first_computed_at":"2026-07-05T11:24:25.016081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:24:25.016081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JMk1zw4+EJ+7us1EFqqcLr4GcKnRSkq4nHhfHWSJEOB9K4QPr+342xx95rnqsDS3CbQs9fiyHnaP+zBr2mEzCw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:24:25.016675Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.15521","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0040545ae43166e5da48dc9f26c674596927ab4514e9ebcc9a7f8c4b5fe2740c","sha256:d92472d78744ff656dd01c0ff2de930333347d5bb7f27f25d3a65971afd75100"],"state_sha256":"19ecb2c47d09daf26302846ed3361112bdeedbad50944dd8fd78e166568c22a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vKbK8WEmUF3IluGHPXIXz3id06T2/kEAWjUziFJ4lY1/YxsmQsvkCE7ELmIvxSlUe1+lniALYe5muMKwa2SyCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T00:41:29.989601Z","bundle_sha256":"be474627d7550e2470fb2f972e6540182a176d161bd5a8343cee43f7bccbf74b"}}