{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:GTZRWVIQK7TC3VRV4QKRXSCNHO","short_pith_number":"pith:GTZRWVIQ","canonical_record":{"source":{"id":"1904.03159","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-04-05T16:59:29Z","cross_cats_sorted":[],"title_canon_sha256":"50b564a9173105bd2322c8d2fea76dcf32d3dca1385cb744cd174c84c1069faa","abstract_canon_sha256":"34124f42ca0c3639f4fa920b72b060ce8e69bce66542df3f79880e3fb5c6b5c2"},"schema_version":"1.0"},"canonical_sha256":"34f31b551057e62dd635e4151bc84d3bb97724e7959b2b2f1bcaa649fc7015e4","source":{"kind":"arxiv","id":"1904.03159","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.03159","created_at":"2026-05-17T23:49:18Z"},{"alias_kind":"arxiv_version","alias_value":"1904.03159v1","created_at":"2026-05-17T23:49:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.03159","created_at":"2026-05-17T23:49:18Z"},{"alias_kind":"pith_short_12","alias_value":"GTZRWVIQK7TC","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GTZRWVIQK7TC3VRV","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GTZRWVIQ","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:GTZRWVIQK7TC3VRV4QKRXSCNHO","target":"record","payload":{"canonical_record":{"source":{"id":"1904.03159","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-04-05T16:59:29Z","cross_cats_sorted":[],"title_canon_sha256":"50b564a9173105bd2322c8d2fea76dcf32d3dca1385cb744cd174c84c1069faa","abstract_canon_sha256":"34124f42ca0c3639f4fa920b72b060ce8e69bce66542df3f79880e3fb5c6b5c2"},"schema_version":"1.0"},"canonical_sha256":"34f31b551057e62dd635e4151bc84d3bb97724e7959b2b2f1bcaa649fc7015e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:18.411759Z","signature_b64":"RMWaGGLKihTWfDRaem3MRKHp5jzg3nIJ1k+fjf02HPISj9uiOd1cazSAsaDfjGI6R6Qk8S0EW9/j7GsFaQUHCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34f31b551057e62dd635e4151bc84d3bb97724e7959b2b2f1bcaa649fc7015e4","last_reissued_at":"2026-05-17T23:49:18.411331Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:18.411331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.03159","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":"2026-05-17T23:49:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TXl8MglH62+RRx61xq06FDGhxJJC1Lfo7BAnW3Oog4vRajXaLatAUZ0d8Z38TjUvkAP+mdRG99cCIbKwsgtoAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:52:36.743760Z"},"content_sha256":"51a29e3cf567dcfe2351e7d944d4c7265a586b2e66fd9c36866b8f5c16deddf6","schema_version":"1.0","event_id":"sha256:51a29e3cf567dcfe2351e7d944d4c7265a586b2e66fd9c36866b8f5c16deddf6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:GTZRWVIQK7TC3VRV4QKRXSCNHO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two- and three-electron bubbles in Al$_{x}$Ga$_{1-x}$As/Al$_{0.24}$Ga$_{0.76}$As quantum wells","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"G. C. Gardner, J. D. Watson, M. A. Zudov, M. J. Manfra, Q. Shi, X. Fu","submitted_at":"2019-04-05T16:59:29Z","abstract_excerpt":"We report on transport signatures of eight distinct bubble phases in the $N=3$ Landau level of a Al$_{x}$Ga$_{1-x}$As/Al$_{0.24}$Ga$_{0.76}$As quantum well with $x = 0.0015$. These phases occur near partial filling factors $\\nu^\\star \\approx 0.2\\,(0.8)$ and $\\nu^\\star \\approx 0.3\\,(0.7)$ and have $M = 2$ and $M = 3$ electrons (holes) per bubble, respectively. We speculate that a small amount of alloy disorder in our sample helps to distinguish these broken symmetry states in low-temperature transport measurements."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.03159","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":"2026-05-17T23:49:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"94dmwoYcAF55g3nhpoiOd81uGh+H69t2+66EFyALYPb3Y8bhRn7HKu6rmRx/nhNL1VnYpzZE0ji3EaPP8ArpBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:52:36.744097Z"},"content_sha256":"abf875bc80a490e5735ddfca6c9216fd4260d91a074bb22564341717a4084a97","schema_version":"1.0","event_id":"sha256:abf875bc80a490e5735ddfca6c9216fd4260d91a074bb22564341717a4084a97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO/bundle.json","state_url":"https://pith.science/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO/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":"2026-06-01T17:52:36Z","links":{"resolver":"https://pith.science/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO","bundle":"https://pith.science/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO/bundle.json","state":"https://pith.science/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GTZRWVIQK7TC3VRV4QKRXSCNHO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:GTZRWVIQK7TC3VRV4QKRXSCNHO","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":"34124f42ca0c3639f4fa920b72b060ce8e69bce66542df3f79880e3fb5c6b5c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-04-05T16:59:29Z","title_canon_sha256":"50b564a9173105bd2322c8d2fea76dcf32d3dca1385cb744cd174c84c1069faa"},"schema_version":"1.0","source":{"id":"1904.03159","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.03159","created_at":"2026-05-17T23:49:18Z"},{"alias_kind":"arxiv_version","alias_value":"1904.03159v1","created_at":"2026-05-17T23:49:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.03159","created_at":"2026-05-17T23:49:18Z"},{"alias_kind":"pith_short_12","alias_value":"GTZRWVIQK7TC","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GTZRWVIQK7TC3VRV","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GTZRWVIQ","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:abf875bc80a490e5735ddfca6c9216fd4260d91a074bb22564341717a4084a97","target":"graph","created_at":"2026-05-17T23:49:18Z","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 on transport signatures of eight distinct bubble phases in the $N=3$ Landau level of a Al$_{x}$Ga$_{1-x}$As/Al$_{0.24}$Ga$_{0.76}$As quantum well with $x = 0.0015$. These phases occur near partial filling factors $\\nu^\\star \\approx 0.2\\,(0.8)$ and $\\nu^\\star \\approx 0.3\\,(0.7)$ and have $M = 2$ and $M = 3$ electrons (holes) per bubble, respectively. We speculate that a small amount of alloy disorder in our sample helps to distinguish these broken symmetry states in low-temperature transport measurements.","authors_text":"G. C. Gardner, J. D. Watson, M. A. Zudov, M. J. Manfra, Q. Shi, X. Fu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-04-05T16:59:29Z","title":"Two- and three-electron bubbles in Al$_{x}$Ga$_{1-x}$As/Al$_{0.24}$Ga$_{0.76}$As quantum wells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.03159","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":"sha256:51a29e3cf567dcfe2351e7d944d4c7265a586b2e66fd9c36866b8f5c16deddf6","target":"record","created_at":"2026-05-17T23:49:18Z","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":"34124f42ca0c3639f4fa920b72b060ce8e69bce66542df3f79880e3fb5c6b5c2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-04-05T16:59:29Z","title_canon_sha256":"50b564a9173105bd2322c8d2fea76dcf32d3dca1385cb744cd174c84c1069faa"},"schema_version":"1.0","source":{"id":"1904.03159","kind":"arxiv","version":1}},"canonical_sha256":"34f31b551057e62dd635e4151bc84d3bb97724e7959b2b2f1bcaa649fc7015e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34f31b551057e62dd635e4151bc84d3bb97724e7959b2b2f1bcaa649fc7015e4","first_computed_at":"2026-05-17T23:49:18.411331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:18.411331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RMWaGGLKihTWfDRaem3MRKHp5jzg3nIJ1k+fjf02HPISj9uiOd1cazSAsaDfjGI6R6Qk8S0EW9/j7GsFaQUHCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:18.411759Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.03159","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51a29e3cf567dcfe2351e7d944d4c7265a586b2e66fd9c36866b8f5c16deddf6","sha256:abf875bc80a490e5735ddfca6c9216fd4260d91a074bb22564341717a4084a97"],"state_sha256":"bb3087fe440ad9ae5d847daa91ec2793fac62a3390409010b1c336dcfecb2b69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SNuZugCveqHsmmRJgoRdQszVzsmez1JocLYxxQv9jxgpQp0Rhy6jGc6qowApG+BGWUXAzlrRJE66uoh+PYsZAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:52:36.746876Z","bundle_sha256":"1a1e589610d86822c6fb0879fd7def23c1a4cab2cf07d816115b3c7b638b8eed"}}