{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:ELH2UDQZINC3KF7JM3GUWLBWMV","short_pith_number":"pith:ELH2UDQZ","canonical_record":{"source":{"id":"cond-mat/9805166","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-14T09:45:17Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"9d9b1df59e388f3a4e1b4f074a81b512c50881ea9fa7247a2a2783c48ba8a214","abstract_canon_sha256":"0473838cd7f41d691caa79bc15f8320cb49f062aeca2619cda31a62ffe647e12"},"schema_version":"1.0"},"canonical_sha256":"22cfaa0e194345b517e966cd4b2c36657a0a9494fa05667c5e7dd0c3a063d764","source":{"kind":"arxiv","id":"cond-mat/9805166","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9805166","created_at":"2026-05-18T01:39:30Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9805166v1","created_at":"2026-05-18T01:39:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9805166","created_at":"2026-05-18T01:39:30Z"},{"alias_kind":"pith_short_12","alias_value":"ELH2UDQZINC3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"ELH2UDQZINC3KF7J","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"ELH2UDQZ","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:ELH2UDQZINC3KF7JM3GUWLBWMV","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9805166","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-14T09:45:17Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"9d9b1df59e388f3a4e1b4f074a81b512c50881ea9fa7247a2a2783c48ba8a214","abstract_canon_sha256":"0473838cd7f41d691caa79bc15f8320cb49f062aeca2619cda31a62ffe647e12"},"schema_version":"1.0"},"canonical_sha256":"22cfaa0e194345b517e966cd4b2c36657a0a9494fa05667c5e7dd0c3a063d764","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:30.523907Z","signature_b64":"Tam5ZsEYZoDCfrbcJgvXVJwctrYVFgQvi/WjqoOKOVxevCXVYG3jMccbsWlMq5qw2VwvPbqsWqnCZzYTEhMfCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22cfaa0e194345b517e966cd4b2c36657a0a9494fa05667c5e7dd0c3a063d764","last_reissued_at":"2026-05-18T01:39:30.523139Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:30.523139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9805166","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":"2026-05-18T01:39:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ejw7AOweuAlePYBUwzfDdTwOI3LDcBQbGb0tRlo6XNhtHCsQ3gAxcfTDv1fb6+B8GQOVSod2DBXVcITICgNeBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T04:25:55.868370Z"},"content_sha256":"9fc9aa1ea10eb37de21ec359676df292abe17fd77e355c417c4d49ad27183c5f","schema_version":"1.0","event_id":"sha256:9fc9aa1ea10eb37de21ec359676df292abe17fd77e355c417c4d49ad27183c5f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:ELH2UDQZINC3KF7JM3GUWLBWMV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Binding energy of localized biexcitons in quantum wells","license":"","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"C. Riva, F. M. Peeters, K. Varga","submitted_at":"1998-05-14T09:45:17Z","abstract_excerpt":"A variational calculation of the ground state energy of a biexciton in a GaAs/AlGaAs quantum well is presented. The well width fluctuations leading to trapping of the biexcitons are modeled by a parabolic potential. The results obtained for different well widths are compared with recent experimental data. Good agreement is obtained both for the biexciton binding energy and for the Haynes factor. We find that the structure of a biexciton is similar to the one of the H_2 molecule."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9805166","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":"2026-05-18T01:39:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rXAJJ7HrIqprqM18VH7zMiWIBXI4Nhv/nPAa/WZ9BdS4zhrUwAAm/+uVbcLDnaxPON0lzmUcO4HQ+6uIEHxECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T04:25:55.868868Z"},"content_sha256":"b3a4f9cd134efd9b10dcc027b9f5d8a16add8a19978291adaa1c8e2f60b66e09","schema_version":"1.0","event_id":"sha256:b3a4f9cd134efd9b10dcc027b9f5d8a16add8a19978291adaa1c8e2f60b66e09"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ELH2UDQZINC3KF7JM3GUWLBWMV/bundle.json","state_url":"https://pith.science/pith/ELH2UDQZINC3KF7JM3GUWLBWMV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ELH2UDQZINC3KF7JM3GUWLBWMV/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":"2026-05-27T04:25:55Z","links":{"resolver":"https://pith.science/pith/ELH2UDQZINC3KF7JM3GUWLBWMV","bundle":"https://pith.science/pith/ELH2UDQZINC3KF7JM3GUWLBWMV/bundle.json","state":"https://pith.science/pith/ELH2UDQZINC3KF7JM3GUWLBWMV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ELH2UDQZINC3KF7JM3GUWLBWMV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:ELH2UDQZINC3KF7JM3GUWLBWMV","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":"0473838cd7f41d691caa79bc15f8320cb49f062aeca2619cda31a62ffe647e12","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-14T09:45:17Z","title_canon_sha256":"9d9b1df59e388f3a4e1b4f074a81b512c50881ea9fa7247a2a2783c48ba8a214"},"schema_version":"1.0","source":{"id":"cond-mat/9805166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9805166","created_at":"2026-05-18T01:39:30Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9805166v1","created_at":"2026-05-18T01:39:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9805166","created_at":"2026-05-18T01:39:30Z"},{"alias_kind":"pith_short_12","alias_value":"ELH2UDQZINC3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"ELH2UDQZINC3KF7J","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"ELH2UDQZ","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:b3a4f9cd134efd9b10dcc027b9f5d8a16add8a19978291adaa1c8e2f60b66e09","target":"graph","created_at":"2026-05-18T01:39:30Z","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":"A variational calculation of the ground state energy of a biexciton in a GaAs/AlGaAs quantum well is presented. The well width fluctuations leading to trapping of the biexcitons are modeled by a parabolic potential. The results obtained for different well widths are compared with recent experimental data. Good agreement is obtained both for the biexciton binding energy and for the Haynes factor. We find that the structure of a biexciton is similar to the one of the H_2 molecule.","authors_text":"C. Riva, F. M. Peeters, K. Varga","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-14T09:45:17Z","title":"Binding energy of localized biexcitons in quantum wells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9805166","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":"sha256:9fc9aa1ea10eb37de21ec359676df292abe17fd77e355c417c4d49ad27183c5f","target":"record","created_at":"2026-05-18T01:39:30Z","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":"0473838cd7f41d691caa79bc15f8320cb49f062aeca2619cda31a62ffe647e12","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-14T09:45:17Z","title_canon_sha256":"9d9b1df59e388f3a4e1b4f074a81b512c50881ea9fa7247a2a2783c48ba8a214"},"schema_version":"1.0","source":{"id":"cond-mat/9805166","kind":"arxiv","version":1}},"canonical_sha256":"22cfaa0e194345b517e966cd4b2c36657a0a9494fa05667c5e7dd0c3a063d764","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22cfaa0e194345b517e966cd4b2c36657a0a9494fa05667c5e7dd0c3a063d764","first_computed_at":"2026-05-18T01:39:30.523139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:30.523139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tam5ZsEYZoDCfrbcJgvXVJwctrYVFgQvi/WjqoOKOVxevCXVYG3jMccbsWlMq5qw2VwvPbqsWqnCZzYTEhMfCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:30.523907Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9805166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9fc9aa1ea10eb37de21ec359676df292abe17fd77e355c417c4d49ad27183c5f","sha256:b3a4f9cd134efd9b10dcc027b9f5d8a16add8a19978291adaa1c8e2f60b66e09"],"state_sha256":"217fd230d01b61ef9527aa2cb15c95d96db2506734fb95c0eeeb8baab2bef66c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hXbG7u1Z+j1hp6cyClfuXV846QaaiFZbWvHaoKXenq9Wm1c4FtOxbBT4MPNl70wdmiL30Y302zu7mzFdeLTMBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T04:25:55.871520Z","bundle_sha256":"e6d27885d3033fedc163d113b263a7f481a9fc4692bcac1b3af13f89c2d0f995"}}