{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:NFFJXEUY4U76OASXE527HID2B2","short_pith_number":"pith:NFFJXEUY","canonical_record":{"source":{"id":"2607.24152","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-07-27T08:31:16Z","cross_cats_sorted":[],"title_canon_sha256":"8dda3e6c54f4d8af5ba5a5ded850c32e82bc7cb1bf29a1debe608a6d9828f468","abstract_canon_sha256":"1e244f9a8f91229d52bdcdc8a84cc9beb6ed61dae5ad94a1711af66de028e7e8"},"schema_version":"1.0"},"canonical_sha256":"694a9b9298e53fe702572775f3a07a0e98b9341508c4d92f56818d4c402cc8ba","source":{"kind":"arxiv","id":"2607.24152","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.24152","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"arxiv_version","alias_value":"2607.24152v1","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.24152","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"pith_short_12","alias_value":"NFFJXEUY4U76","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"pith_short_16","alias_value":"NFFJXEUY4U76OASX","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"pith_short_8","alias_value":"NFFJXEUY","created_at":"2026-07-28T01:23:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:NFFJXEUY4U76OASXE527HID2B2","target":"record","payload":{"canonical_record":{"source":{"id":"2607.24152","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-07-27T08:31:16Z","cross_cats_sorted":[],"title_canon_sha256":"8dda3e6c54f4d8af5ba5a5ded850c32e82bc7cb1bf29a1debe608a6d9828f468","abstract_canon_sha256":"1e244f9a8f91229d52bdcdc8a84cc9beb6ed61dae5ad94a1711af66de028e7e8"},"schema_version":"1.0"},"canonical_sha256":"694a9b9298e53fe702572775f3a07a0e98b9341508c4d92f56818d4c402cc8ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-28T01:23:47.557280Z","signature_b64":"G/F3a3wpTExio6/qDFynl6+sMRq+iAFhEEuHzguegspzRSwuDoeh34HaZL5FZPDDwqlKouXrZ40RSSdfwMuZAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"694a9b9298e53fe702572775f3a07a0e98b9341508c4d92f56818d4c402cc8ba","last_reissued_at":"2026-07-28T01:23:47.556431Z","signature_status":"signed_v1","first_computed_at":"2026-07-28T01:23:47.556431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.24152","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":"2026-07-28T01:23:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FMWnMf21QS8KDamdvDGu0X5pxtCgTeJFiYXHCEK60d70i43fIxJTehswjg/eb7AAmRoatTMMXNxg5X1rLNcxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:05:46.004254Z"},"content_sha256":"96552ef11e4279880b6b33b451d0aefddd74bef6354753bdda334f7d2da76499","schema_version":"1.0","event_id":"sha256:96552ef11e4279880b6b33b451d0aefddd74bef6354753bdda334f7d2da76499"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:NFFJXEUY4U76OASXE527HID2B2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comment on \"Observation of Kardar--Parisi--Zhang universal scaling in two dimensions\"","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"A. Minguzzi, F. Helluin, J. Bloch, L. Canet, M. Escalera, Q. Fontaine, S. Ravets","submitted_at":"2026-07-27T08:31:16Z","abstract_excerpt":"In their paper published in Science 392, 221 (2026), Widmann and collaborators reported interferometry experiments to explore the emission coherence decay of a two-dimensional polariton condensate generated in an array of coupled resonators. The authors claim evidence of Kardar--Parisi--Zhang (KPZ) universal scaling in the measured spatio-temporal coherence decay. We argue in the following that the data were not properly analyzed. We re-analyze the experimental data acquired both with the square and the triangular lattices for various values of the excitation power. Instead of stretched expone"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.24152","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/2607.24152/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":"2026-07-28T01:23:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/J/MATSFZspN/BRs4BBq5nMvv+Db8N+qpBhp1knkJ6kZttZwQpaJ3Eb1yjTH8gTUNEFHrqVKJQnckSe00xlvCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T17:05:46.004785Z"},"content_sha256":"0d70e0f207a6907e3071ce30e7464cf40551aa1c5058bbf064659e9eebb326cc","schema_version":"1.0","event_id":"sha256:0d70e0f207a6907e3071ce30e7464cf40551aa1c5058bbf064659e9eebb326cc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFFJXEUY4U76OASXE527HID2B2/bundle.json","state_url":"https://pith.science/pith/NFFJXEUY4U76OASXE527HID2B2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFFJXEUY4U76OASXE527HID2B2/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":"2026-08-23T17:05:46Z","links":{"resolver":"https://pith.science/pith/NFFJXEUY4U76OASXE527HID2B2","bundle":"https://pith.science/pith/NFFJXEUY4U76OASXE527HID2B2/bundle.json","state":"https://pith.science/pith/NFFJXEUY4U76OASXE527HID2B2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFFJXEUY4U76OASXE527HID2B2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:NFFJXEUY4U76OASXE527HID2B2","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":"1e244f9a8f91229d52bdcdc8a84cc9beb6ed61dae5ad94a1711af66de028e7e8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-07-27T08:31:16Z","title_canon_sha256":"8dda3e6c54f4d8af5ba5a5ded850c32e82bc7cb1bf29a1debe608a6d9828f468"},"schema_version":"1.0","source":{"id":"2607.24152","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.24152","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"arxiv_version","alias_value":"2607.24152v1","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.24152","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"pith_short_12","alias_value":"NFFJXEUY4U76","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"pith_short_16","alias_value":"NFFJXEUY4U76OASX","created_at":"2026-07-28T01:23:47Z"},{"alias_kind":"pith_short_8","alias_value":"NFFJXEUY","created_at":"2026-07-28T01:23:47Z"}],"graph_snapshots":[{"event_id":"sha256:0d70e0f207a6907e3071ce30e7464cf40551aa1c5058bbf064659e9eebb326cc","target":"graph","created_at":"2026-07-28T01:23:47Z","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/2607.24152/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In their paper published in Science 392, 221 (2026), Widmann and collaborators reported interferometry experiments to explore the emission coherence decay of a two-dimensional polariton condensate generated in an array of coupled resonators. The authors claim evidence of Kardar--Parisi--Zhang (KPZ) universal scaling in the measured spatio-temporal coherence decay. We argue in the following that the data were not properly analyzed. We re-analyze the experimental data acquired both with the square and the triangular lattices for various values of the excitation power. Instead of stretched expone","authors_text":"A. Minguzzi, F. Helluin, J. Bloch, L. Canet, M. Escalera, Q. Fontaine, S. Ravets","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-07-27T08:31:16Z","title":"Comment on \"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":"2607.24152","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":"sha256:96552ef11e4279880b6b33b451d0aefddd74bef6354753bdda334f7d2da76499","target":"record","created_at":"2026-07-28T01:23:47Z","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":"1e244f9a8f91229d52bdcdc8a84cc9beb6ed61dae5ad94a1711af66de028e7e8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-07-27T08:31:16Z","title_canon_sha256":"8dda3e6c54f4d8af5ba5a5ded850c32e82bc7cb1bf29a1debe608a6d9828f468"},"schema_version":"1.0","source":{"id":"2607.24152","kind":"arxiv","version":1}},"canonical_sha256":"694a9b9298e53fe702572775f3a07a0e98b9341508c4d92f56818d4c402cc8ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"694a9b9298e53fe702572775f3a07a0e98b9341508c4d92f56818d4c402cc8ba","first_computed_at":"2026-07-28T01:23:47.556431Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-28T01:23:47.556431Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G/F3a3wpTExio6/qDFynl6+sMRq+iAFhEEuHzguegspzRSwuDoeh34HaZL5FZPDDwqlKouXrZ40RSSdfwMuZAg==","signature_status":"signed_v1","signed_at":"2026-07-28T01:23:47.557280Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.24152","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96552ef11e4279880b6b33b451d0aefddd74bef6354753bdda334f7d2da76499","sha256:0d70e0f207a6907e3071ce30e7464cf40551aa1c5058bbf064659e9eebb326cc"],"state_sha256":"9a8ad6e0fd66a154cb106db52698029e9ef3536849582e9e3f75c509b3e4a9d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k4+l77Chh+PvT8f6QMImyZNulj/Itq7FPkhnGsvoQ/0WV1ctAr8hruRstgw8oBXB1OQWC1nBbuf89TMxjzdjCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T17:05:46.011474Z","bundle_sha256":"80ca0fd63d736f62090a6dec4eb0446f8ee967631d9cf8919cf3352b668d8b5e"}}