{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:3KKBOLJOCUBMEPMNHLUIEZDD4A","short_pith_number":"pith:3KKBOLJO","canonical_record":{"source":{"id":"1604.03536","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-12T19:22:45Z","cross_cats_sorted":[],"title_canon_sha256":"216c688ec1f656f4fa3e3c96e5f271d63e190b52a1881b3f01a3d5b1fba051cd","abstract_canon_sha256":"95c127109bd1ed9d397e176d20f5624b97eeb4a87cd61fc4e4c5f013d0e306bf"},"schema_version":"1.0"},"canonical_sha256":"da94172d2e1502c23d8d3ae8826463e018faa47dca253ab7cd89724a6912605f","source":{"kind":"arxiv","id":"1604.03536","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.03536","created_at":"2026-05-18T01:01:24Z"},{"alias_kind":"arxiv_version","alias_value":"1604.03536v1","created_at":"2026-05-18T01:01:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.03536","created_at":"2026-05-18T01:01:24Z"},{"alias_kind":"pith_short_12","alias_value":"3KKBOLJOCUBM","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"3KKBOLJOCUBMEPMN","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"3KKBOLJO","created_at":"2026-05-18T12:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:3KKBOLJOCUBMEPMNHLUIEZDD4A","target":"record","payload":{"canonical_record":{"source":{"id":"1604.03536","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-12T19:22:45Z","cross_cats_sorted":[],"title_canon_sha256":"216c688ec1f656f4fa3e3c96e5f271d63e190b52a1881b3f01a3d5b1fba051cd","abstract_canon_sha256":"95c127109bd1ed9d397e176d20f5624b97eeb4a87cd61fc4e4c5f013d0e306bf"},"schema_version":"1.0"},"canonical_sha256":"da94172d2e1502c23d8d3ae8826463e018faa47dca253ab7cd89724a6912605f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:24.222276Z","signature_b64":"ZcJt5v63IGQsy2+66HdUumnEYLgiw3PUwOJBbN/3xjLn5DUlxdudDbvashGIXcGH0574KB5Rue75Nb+uH/olAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da94172d2e1502c23d8d3ae8826463e018faa47dca253ab7cd89724a6912605f","last_reissued_at":"2026-05-18T01:01:24.221814Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:24.221814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.03536","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":"2026-05-18T01:01:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k99b4DPzuSX/FtueTFKGKdKEKoN8HHdkraKlLdL3eeskaeYzTf3C7BtemR5m4Ia5WlzAEhgj9VOcsLOXIJBMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:10:51.790122Z"},"content_sha256":"2dab524f246f8cff69daf4c2641fe9dcc0ccc122cf022714f428372a9cfc1389","schema_version":"1.0","event_id":"sha256:2dab524f246f8cff69daf4c2641fe9dcc0ccc122cf022714f428372a9cfc1389"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:3KKBOLJOCUBMEPMNHLUIEZDD4A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of the exciton Mott transition in the photoluminescence of coupled quantum wells","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Gabija Kir\\v{s}ansk\\.e, Javier Miguel-S\\'anchez, Peter Lodahl, Petru Tighineanu, Rapha\\\"el S. Daveau, S{\\o}ren Stobbe","submitted_at":"2016-04-12T19:22:45Z","abstract_excerpt":"Indirect excitons in coupled quantum wells have long radiative lifetimes and form a cold quasi-two-dimensional population suitable for studying collective quantum effects. Here we report the observation of the exciton Mott transition from an insulating (excitons) to a conducting (ionized electron-hole pairs) phase, which occurs gradually as a function of carrier density and temperature. The transition is inferred from spectral and time-resolved photoluminescence measurements around a carrier density of $2\\times10^{10} \\mathrm{cm}^{-2}$ and temperatures of $12-16 \\mathrm{K}$. An externally appl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.03536","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":"2026-05-18T01:01:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3SOhAt0O3DXiYyNKC00OXKgetg1PEXVS+RbUgWa+0XIRtU61drkPzl6AXaxdNIvYZ0/zfI8ljJP5FswYEByRBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:10:51.790484Z"},"content_sha256":"77000477e4a9ccb86a11f760791a6ce7ae068c8a1e55ce01d30d16058e219e28","schema_version":"1.0","event_id":"sha256:77000477e4a9ccb86a11f760791a6ce7ae068c8a1e55ce01d30d16058e219e28"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A/bundle.json","state_url":"https://pith.science/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A/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":"2026-05-31T21:10:51Z","links":{"resolver":"https://pith.science/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A","bundle":"https://pith.science/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A/bundle.json","state":"https://pith.science/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KKBOLJOCUBMEPMNHLUIEZDD4A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:3KKBOLJOCUBMEPMNHLUIEZDD4A","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":"95c127109bd1ed9d397e176d20f5624b97eeb4a87cd61fc4e4c5f013d0e306bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-12T19:22:45Z","title_canon_sha256":"216c688ec1f656f4fa3e3c96e5f271d63e190b52a1881b3f01a3d5b1fba051cd"},"schema_version":"1.0","source":{"id":"1604.03536","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.03536","created_at":"2026-05-18T01:01:24Z"},{"alias_kind":"arxiv_version","alias_value":"1604.03536v1","created_at":"2026-05-18T01:01:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.03536","created_at":"2026-05-18T01:01:24Z"},{"alias_kind":"pith_short_12","alias_value":"3KKBOLJOCUBM","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"3KKBOLJOCUBMEPMN","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"3KKBOLJO","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:77000477e4a9ccb86a11f760791a6ce7ae068c8a1e55ce01d30d16058e219e28","target":"graph","created_at":"2026-05-18T01:01:24Z","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":"Indirect excitons in coupled quantum wells have long radiative lifetimes and form a cold quasi-two-dimensional population suitable for studying collective quantum effects. Here we report the observation of the exciton Mott transition from an insulating (excitons) to a conducting (ionized electron-hole pairs) phase, which occurs gradually as a function of carrier density and temperature. The transition is inferred from spectral and time-resolved photoluminescence measurements around a carrier density of $2\\times10^{10} \\mathrm{cm}^{-2}$ and temperatures of $12-16 \\mathrm{K}$. An externally appl","authors_text":"Gabija Kir\\v{s}ansk\\.e, Javier Miguel-S\\'anchez, Peter Lodahl, Petru Tighineanu, Rapha\\\"el S. Daveau, S{\\o}ren Stobbe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-12T19:22:45Z","title":"Observation of the exciton Mott transition in the photoluminescence of coupled quantum wells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.03536","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":"sha256:2dab524f246f8cff69daf4c2641fe9dcc0ccc122cf022714f428372a9cfc1389","target":"record","created_at":"2026-05-18T01:01:24Z","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":"95c127109bd1ed9d397e176d20f5624b97eeb4a87cd61fc4e4c5f013d0e306bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-12T19:22:45Z","title_canon_sha256":"216c688ec1f656f4fa3e3c96e5f271d63e190b52a1881b3f01a3d5b1fba051cd"},"schema_version":"1.0","source":{"id":"1604.03536","kind":"arxiv","version":1}},"canonical_sha256":"da94172d2e1502c23d8d3ae8826463e018faa47dca253ab7cd89724a6912605f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da94172d2e1502c23d8d3ae8826463e018faa47dca253ab7cd89724a6912605f","first_computed_at":"2026-05-18T01:01:24.221814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:24.221814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZcJt5v63IGQsy2+66HdUumnEYLgiw3PUwOJBbN/3xjLn5DUlxdudDbvashGIXcGH0574KB5Rue75Nb+uH/olAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:24.222276Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.03536","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2dab524f246f8cff69daf4c2641fe9dcc0ccc122cf022714f428372a9cfc1389","sha256:77000477e4a9ccb86a11f760791a6ce7ae068c8a1e55ce01d30d16058e219e28"],"state_sha256":"9b4a01a09ba46740c6ad836992d485fb4636411fe04c34916379ae98d840d0ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WWXEFEi5x3LDS2VNuMJKczfJJIH3G0YtH0eBtaJ1Ux3GrwaYQv8BDeV32uONN/WrSMsY+Tvvc+b/UX7RpequCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T21:10:51.792766Z","bundle_sha256":"a2d2a29b6eb56a6048a5a934e9816bb1b2e99fa79330e9e1c6c42891f0bd12e0"}}