{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:DXRXYLXPHAACHCDPWQIEC5X5RA","short_pith_number":"pith:DXRXYLXP","canonical_record":{"source":{"id":"1610.05737","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2016-10-18T18:38:26Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.stat-mech"],"title_canon_sha256":"5fd7242514ddd58b23b3d69d34c430d42fcd7ef7a40d98e35ee37cf8f8587064","abstract_canon_sha256":"b94777825bae9541e9097231ff95e604c04293ce66bcdfe40422a144648aecb9"},"schema_version":"1.0"},"canonical_sha256":"1de37c2eef380023886fb4104176fd88189a5b7a8d03d758761894c76b57b78c","source":{"kind":"arxiv","id":"1610.05737","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.05737","created_at":"2026-05-18T00:05:14Z"},{"alias_kind":"arxiv_version","alias_value":"1610.05737v1","created_at":"2026-05-18T00:05:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.05737","created_at":"2026-05-18T00:05:14Z"},{"alias_kind":"pith_short_12","alias_value":"DXRXYLXPHAAC","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DXRXYLXPHAACHCDP","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DXRXYLXP","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:DXRXYLXPHAACHCDPWQIEC5X5RA","target":"record","payload":{"canonical_record":{"source":{"id":"1610.05737","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2016-10-18T18:38:26Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.stat-mech"],"title_canon_sha256":"5fd7242514ddd58b23b3d69d34c430d42fcd7ef7a40d98e35ee37cf8f8587064","abstract_canon_sha256":"b94777825bae9541e9097231ff95e604c04293ce66bcdfe40422a144648aecb9"},"schema_version":"1.0"},"canonical_sha256":"1de37c2eef380023886fb4104176fd88189a5b7a8d03d758761894c76b57b78c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:14.760241Z","signature_b64":"pQeBBwE/2RzjaIVFplMkWt5OcU2qa2Boy+NaLlwW+2Ai195jKTeVaUiCZL1P0/dk++5lHLaZxMDQ1iMnYW9DAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1de37c2eef380023886fb4104176fd88189a5b7a8d03d758761894c76b57b78c","last_reissued_at":"2026-05-18T00:05:14.759763Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:14.759763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.05737","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":"2026-05-18T00:05:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NVz0fvo3UzpW/+CNOlA6Kck3M4WSMzMBZF6x1fxFzaewOQ0Xaib6JNW+L6nNpjPtadYcMr/AFNTlmu6To7HRCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T14:03:56.573963Z"},"content_sha256":"b9d7cdf4d9c02159efe7c5f7b528a9d6ab693ee3fcee9c57424ee5b7a4e5881e","schema_version":"1.0","event_id":"sha256:b9d7cdf4d9c02159efe7c5f7b528a9d6ab693ee3fcee9c57424ee5b7a4e5881e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:DXRXYLXPHAACHCDPWQIEC5X5RA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topological order and equilibrium in a condensate of exciton-polaritons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.stat-mech"],"primary_cat":"cond-mat.quant-gas","authors_text":"Carlos S\\'anchez Mu\\~noz, Daniele Sanvitto, Dario Ballarini, Davide Caputo, Fabrice P. Laussy, Galbadrakh Dagvadorj, Giuseppe Gigli, Kenneth West, Loren N. Pfeiffer, Lorenzo Dominici, Marzena H. Szyma\\'nska, Milena De Giorgi","submitted_at":"2016-10-18T18:38:26Z","abstract_excerpt":"We report the observation of the Berezinskii-Kosterlitz-Thouless transition for a 2D gas of exciton-polaritons, and through the joint measurement of the first-order coherence both in space and time we bring compelling evidence of a thermodynamic equilibrium phase transition in an otherwise open driven/dissipative system. This is made possible thanks to long polariton lifetimes in high-quality samples with small disorder and in a reservoir-free region far away from the excitation spot, that allow topological ordering to prevail. The observed quasi-ordered phase, characteristic for an equilibriu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.05737","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":""},"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":"2026-05-18T00:05:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KNXauDfbj5f+eaI7frPOEwnlVrdhTuf4JR1jZ5aoBzWpTJvQMQZFSaAapzg+ZRfUbPDnSBpPKkeDaawlyL1SCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T14:03:56.574367Z"},"content_sha256":"335c2d4bf31ec93d404aa6168e318953379d8995d7d57b02ce3f0c48abff6d3e","schema_version":"1.0","event_id":"sha256:335c2d4bf31ec93d404aa6168e318953379d8995d7d57b02ce3f0c48abff6d3e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DXRXYLXPHAACHCDPWQIEC5X5RA/bundle.json","state_url":"https://pith.science/pith/DXRXYLXPHAACHCDPWQIEC5X5RA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DXRXYLXPHAACHCDPWQIEC5X5RA/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":"2026-06-07T14:03:56Z","links":{"resolver":"https://pith.science/pith/DXRXYLXPHAACHCDPWQIEC5X5RA","bundle":"https://pith.science/pith/DXRXYLXPHAACHCDPWQIEC5X5RA/bundle.json","state":"https://pith.science/pith/DXRXYLXPHAACHCDPWQIEC5X5RA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DXRXYLXPHAACHCDPWQIEC5X5RA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:DXRXYLXPHAACHCDPWQIEC5X5RA","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":"b94777825bae9541e9097231ff95e604c04293ce66bcdfe40422a144648aecb9","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2016-10-18T18:38:26Z","title_canon_sha256":"5fd7242514ddd58b23b3d69d34c430d42fcd7ef7a40d98e35ee37cf8f8587064"},"schema_version":"1.0","source":{"id":"1610.05737","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.05737","created_at":"2026-05-18T00:05:14Z"},{"alias_kind":"arxiv_version","alias_value":"1610.05737v1","created_at":"2026-05-18T00:05:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.05737","created_at":"2026-05-18T00:05:14Z"},{"alias_kind":"pith_short_12","alias_value":"DXRXYLXPHAAC","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DXRXYLXPHAACHCDP","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DXRXYLXP","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:335c2d4bf31ec93d404aa6168e318953379d8995d7d57b02ce3f0c48abff6d3e","target":"graph","created_at":"2026-05-18T00:05:14Z","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":"We report the observation of the Berezinskii-Kosterlitz-Thouless transition for a 2D gas of exciton-polaritons, and through the joint measurement of the first-order coherence both in space and time we bring compelling evidence of a thermodynamic equilibrium phase transition in an otherwise open driven/dissipative system. This is made possible thanks to long polariton lifetimes in high-quality samples with small disorder and in a reservoir-free region far away from the excitation spot, that allow topological ordering to prevail. The observed quasi-ordered phase, characteristic for an equilibriu","authors_text":"Carlos S\\'anchez Mu\\~noz, Daniele Sanvitto, Dario Ballarini, Davide Caputo, Fabrice P. Laussy, Galbadrakh Dagvadorj, Giuseppe Gigli, Kenneth West, Loren N. Pfeiffer, Lorenzo Dominici, Marzena H. Szyma\\'nska, Milena De Giorgi","cross_cats":["cond-mat.mes-hall","cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2016-10-18T18:38:26Z","title":"Topological order and equilibrium in a condensate of exciton-polaritons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.05737","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:b9d7cdf4d9c02159efe7c5f7b528a9d6ab693ee3fcee9c57424ee5b7a4e5881e","target":"record","created_at":"2026-05-18T00:05:14Z","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":"b94777825bae9541e9097231ff95e604c04293ce66bcdfe40422a144648aecb9","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2016-10-18T18:38:26Z","title_canon_sha256":"5fd7242514ddd58b23b3d69d34c430d42fcd7ef7a40d98e35ee37cf8f8587064"},"schema_version":"1.0","source":{"id":"1610.05737","kind":"arxiv","version":1}},"canonical_sha256":"1de37c2eef380023886fb4104176fd88189a5b7a8d03d758761894c76b57b78c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1de37c2eef380023886fb4104176fd88189a5b7a8d03d758761894c76b57b78c","first_computed_at":"2026-05-18T00:05:14.759763Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:14.759763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pQeBBwE/2RzjaIVFplMkWt5OcU2qa2Boy+NaLlwW+2Ai195jKTeVaUiCZL1P0/dk++5lHLaZxMDQ1iMnYW9DAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:14.760241Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.05737","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9d7cdf4d9c02159efe7c5f7b528a9d6ab693ee3fcee9c57424ee5b7a4e5881e","sha256:335c2d4bf31ec93d404aa6168e318953379d8995d7d57b02ce3f0c48abff6d3e"],"state_sha256":"d424ad2af5ee3784a6e53ba6d184a47517cbc2df303e09341bd68d99990de633"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EYLuPTh41GFjMbwqs2DHzY4L4kG4q0ljT+VWOByl8QatfBYt3etGxisSyPn6So2ZsXERfd7kif6uZrOyek1lBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T14:03:56.577345Z","bundle_sha256":"2541e3b3a4f2e383e868fca64c17515bb7208a3719a718f9dedb51ee1e44aeb9"}}