{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:CLGMCWUMTQ5EF2QGWOF5NUWBDC","short_pith_number":"pith:CLGMCWUM","canonical_record":{"source":{"id":"1605.02344","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-08T18:09:13Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"8354176b0f275c87d299422945bd9aab40fc82bf7c0611ebaf034cbeb963f94a","abstract_canon_sha256":"5cb96f1b7e8dd3750eb188883dff5168e07c3fd6b1c0781e089774cf67a66c1f"},"schema_version":"1.0"},"canonical_sha256":"12ccc15a8c9c3a42ea06b38bd6d2c118a7a540830cea54bd043c744b546e8456","source":{"kind":"arxiv","id":"1605.02344","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.02344","created_at":"2026-05-18T00:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"1605.02344v2","created_at":"2026-05-18T00:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.02344","created_at":"2026-05-18T00:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"CLGMCWUMTQ5E","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CLGMCWUMTQ5EF2QG","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CLGMCWUM","created_at":"2026-05-18T12:30:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:CLGMCWUMTQ5EF2QGWOF5NUWBDC","target":"record","payload":{"canonical_record":{"source":{"id":"1605.02344","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-08T18:09:13Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"8354176b0f275c87d299422945bd9aab40fc82bf7c0611ebaf034cbeb963f94a","abstract_canon_sha256":"5cb96f1b7e8dd3750eb188883dff5168e07c3fd6b1c0781e089774cf67a66c1f"},"schema_version":"1.0"},"canonical_sha256":"12ccc15a8c9c3a42ea06b38bd6d2c118a7a540830cea54bd043c744b546e8456","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:32.892476Z","signature_b64":"AKXMMhoR0xUA+knbS+M2P6Su8GwriHbOcNgEpUOmMSYopGMTRKnTHJOZgoaKkdBo6T1ImBMAVGop12/D8444BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"12ccc15a8c9c3a42ea06b38bd6d2c118a7a540830cea54bd043c744b546e8456","last_reissued_at":"2026-05-18T00:42:32.891853Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:32.891853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.02344","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:42:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Q+W3RL7/VfwqdVbY4rGN+438yWcj7wBknotcMCIZWC/H71FPbVWGviZHNgDkHFt2WTfov63s7RdT8eUraNZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T19:26:33.979544Z"},"content_sha256":"d8194508316ce380413c08b1b30c6f4be8e8357c726cb37ff83f31405801f284","schema_version":"1.0","event_id":"sha256:d8194508316ce380413c08b1b30c6f4be8e8357c726cb37ff83f31405801f284"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:CLGMCWUMTQ5EF2QGWOF5NUWBDC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Specific heat and entropy of fractional quantum Hall states in the second Landau level","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"B. A. Schmidt, G. Gervais, K. Bennaceur, K. W. West, L. N. Pfeiffer, S. Gaucher","submitted_at":"2016-05-08T18:09:13Z","abstract_excerpt":"Specific heat has had an important role in the study of superfluidity and superconductivity, and could provide important information about the fractional quantum Hall effect as well. However, traditional measurements of the specific heat of a two-dimensional electron gas are difficult due to the large background contribution of the phonon bath, even at very low temperatures. Here, we report measurements of the specific heat per electron in the second Landau level by measuring the thermalization time between the electrons and phonons. We observe activated behaviour of the specific heat of the 5"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02344","kind":"arxiv","version":2},"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":"2026-05-18T00:42:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9KAPB8wi+NejQqV2gAkPkhxsqjA2VnZY4zrqwueAUj540pZtdcqY+azyYIS0KWwStUxGY6BLolvzHC0IedFsAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T19:26:33.979881Z"},"content_sha256":"efb244ce2f2d158439b7f1ae3af421fbe2879bd87ef331cd83fd6ad35c39f945","schema_version":"1.0","event_id":"sha256:efb244ce2f2d158439b7f1ae3af421fbe2879bd87ef331cd83fd6ad35c39f945"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC/bundle.json","state_url":"https://pith.science/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC/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":"2026-06-29T19:26:33Z","links":{"resolver":"https://pith.science/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC","bundle":"https://pith.science/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC/bundle.json","state":"https://pith.science/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CLGMCWUMTQ5EF2QGWOF5NUWBDC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CLGMCWUMTQ5EF2QGWOF5NUWBDC","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":"5cb96f1b7e8dd3750eb188883dff5168e07c3fd6b1c0781e089774cf67a66c1f","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-08T18:09:13Z","title_canon_sha256":"8354176b0f275c87d299422945bd9aab40fc82bf7c0611ebaf034cbeb963f94a"},"schema_version":"1.0","source":{"id":"1605.02344","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.02344","created_at":"2026-05-18T00:42:32Z"},{"alias_kind":"arxiv_version","alias_value":"1605.02344v2","created_at":"2026-05-18T00:42:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.02344","created_at":"2026-05-18T00:42:32Z"},{"alias_kind":"pith_short_12","alias_value":"CLGMCWUMTQ5E","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CLGMCWUMTQ5EF2QG","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CLGMCWUM","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:efb244ce2f2d158439b7f1ae3af421fbe2879bd87ef331cd83fd6ad35c39f945","target":"graph","created_at":"2026-05-18T00:42:32Z","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":"Specific heat has had an important role in the study of superfluidity and superconductivity, and could provide important information about the fractional quantum Hall effect as well. However, traditional measurements of the specific heat of a two-dimensional electron gas are difficult due to the large background contribution of the phonon bath, even at very low temperatures. Here, we report measurements of the specific heat per electron in the second Landau level by measuring the thermalization time between the electrons and phonons. We observe activated behaviour of the specific heat of the 5","authors_text":"B. A. Schmidt, G. Gervais, K. Bennaceur, K. W. West, L. N. Pfeiffer, S. Gaucher","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-08T18:09:13Z","title":"Specific heat and entropy of fractional quantum Hall states in the second Landau level"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02344","kind":"arxiv","version":2},"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:d8194508316ce380413c08b1b30c6f4be8e8357c726cb37ff83f31405801f284","target":"record","created_at":"2026-05-18T00:42:32Z","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":"5cb96f1b7e8dd3750eb188883dff5168e07c3fd6b1c0781e089774cf67a66c1f","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-05-08T18:09:13Z","title_canon_sha256":"8354176b0f275c87d299422945bd9aab40fc82bf7c0611ebaf034cbeb963f94a"},"schema_version":"1.0","source":{"id":"1605.02344","kind":"arxiv","version":2}},"canonical_sha256":"12ccc15a8c9c3a42ea06b38bd6d2c118a7a540830cea54bd043c744b546e8456","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12ccc15a8c9c3a42ea06b38bd6d2c118a7a540830cea54bd043c744b546e8456","first_computed_at":"2026-05-18T00:42:32.891853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:32.891853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AKXMMhoR0xUA+knbS+M2P6Su8GwriHbOcNgEpUOmMSYopGMTRKnTHJOZgoaKkdBo6T1ImBMAVGop12/D8444BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:32.892476Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.02344","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8194508316ce380413c08b1b30c6f4be8e8357c726cb37ff83f31405801f284","sha256:efb244ce2f2d158439b7f1ae3af421fbe2879bd87ef331cd83fd6ad35c39f945"],"state_sha256":"0308372fac00a7f27c523b32b4a6edbd3db5379f9c67178582b31578b58e052f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"juCsiGqalOioY03yAoWX5uN+X4/Mlx66w7JCvFv3+YkHfSLWqjk0QrAK08mzwRduDbJQZ/Orqxz1qkRDlpGNDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T19:26:33.981715Z","bundle_sha256":"89b8b434e2b88f320344d32c939ee5b24c03359c08e56f93915c26359d72a661"}}