{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:LF2HFWBJ3CSMPOH4QAFSQWTDHR","short_pith_number":"pith:LF2HFWBJ","canonical_record":{"source":{"id":"1103.0321","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-03-02T00:09:56Z","cross_cats_sorted":[],"title_canon_sha256":"05e15193772566cafcd6f7aa79d678be9feaf6c0f585220b530eca9348f73027","abstract_canon_sha256":"db4d6b702afcf8ecf9bd50277c3f29a5982912e7824be1311b81a37ff605c94d"},"schema_version":"1.0"},"canonical_sha256":"597472d829d8a4c7b8fc800b285a633c43b038cea2a7f6d60ffd19cb81ce0338","source":{"kind":"arxiv","id":"1103.0321","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.0321","created_at":"2026-05-18T03:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"1103.0321v2","created_at":"2026-05-18T03:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0321","created_at":"2026-05-18T03:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"LF2HFWBJ3CSM","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LF2HFWBJ3CSMPOH4","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LF2HFWBJ","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:LF2HFWBJ3CSMPOH4QAFSQWTDHR","target":"record","payload":{"canonical_record":{"source":{"id":"1103.0321","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-03-02T00:09:56Z","cross_cats_sorted":[],"title_canon_sha256":"05e15193772566cafcd6f7aa79d678be9feaf6c0f585220b530eca9348f73027","abstract_canon_sha256":"db4d6b702afcf8ecf9bd50277c3f29a5982912e7824be1311b81a37ff605c94d"},"schema_version":"1.0"},"canonical_sha256":"597472d829d8a4c7b8fc800b285a633c43b038cea2a7f6d60ffd19cb81ce0338","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:07:41.533000Z","signature_b64":"iw2+KJJqweI8AnKQ6hqeguxa9Qk00EWPXvbs6LlWJgVNGxHqeeVsIN2NEsVgbGoFWMA6l6FTr7BRb2Cv9f1DDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"597472d829d8a4c7b8fc800b285a633c43b038cea2a7f6d60ffd19cb81ce0338","last_reissued_at":"2026-05-18T03:07:41.532213Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:07:41.532213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.0321","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":"2026-05-18T03:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wgzMMHrtGP69dhzQsRTRwG0O3kq2vXYberuJECHGC/noBWcqqnwGcc3K1jjd3qzioQG+K9WdjxMGlbxGtVa5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T19:04:56.555189Z"},"content_sha256":"0968467ee89b397c8a367a2cc9cb9983a5754a0f0ee7cfe18ad0ac69fe50ceec","schema_version":"1.0","event_id":"sha256:0968467ee89b397c8a367a2cc9cb9983a5754a0f0ee7cfe18ad0ac69fe50ceec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:LF2HFWBJ3CSMPOH4QAFSQWTDHR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin Texture in a Cold Exciton Gas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A.A. High, A.C. Gossard, A.T. Hammack, A.V. Kavokin, J.R. Leonard, L.V. Butov, Sen Yang, T. Ostatnicky","submitted_at":"2011-03-02T00:09:56Z","abstract_excerpt":"We report on the observation of a spin texture in a cold exciton gas in a GaAs/AlGaAs coupled quantum well structure. The spin texture is observed around the exciton rings. The observed phenomena include: a ring of linear polarization, a vortex of linear polarization with polarization perpendicular to the radial direction, an anisotropy in the exciton flux, a skew of the exciton fluxes in orthogonal circular polarizations and a corresponding four-leaf pattern of circular polarization, a periodic spin texture, and extended exciton coherence in the region of the polarization vortex. The data ind"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0321","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":"2026-05-18T03:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7d7o7kLUhDeOGd/v87V4qH27VVs3sGCDJU3d+Zv9BfrVLFYjGsLDHyPIspQ+HC1ihJAtnGSYBCvmLuHDYE9lAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T19:04:56.555547Z"},"content_sha256":"05ea798d74215b7ac2a8803394095037a57076d70caaa550ab50b0a0768c35b4","schema_version":"1.0","event_id":"sha256:05ea798d74215b7ac2a8803394095037a57076d70caaa550ab50b0a0768c35b4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR/bundle.json","state_url":"https://pith.science/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR/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":"2026-05-20T19:04:56Z","links":{"resolver":"https://pith.science/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR","bundle":"https://pith.science/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR/bundle.json","state":"https://pith.science/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LF2HFWBJ3CSMPOH4QAFSQWTDHR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:LF2HFWBJ3CSMPOH4QAFSQWTDHR","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":"db4d6b702afcf8ecf9bd50277c3f29a5982912e7824be1311b81a37ff605c94d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-03-02T00:09:56Z","title_canon_sha256":"05e15193772566cafcd6f7aa79d678be9feaf6c0f585220b530eca9348f73027"},"schema_version":"1.0","source":{"id":"1103.0321","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.0321","created_at":"2026-05-18T03:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"1103.0321v2","created_at":"2026-05-18T03:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0321","created_at":"2026-05-18T03:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"LF2HFWBJ3CSM","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"LF2HFWBJ3CSMPOH4","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"LF2HFWBJ","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:05ea798d74215b7ac2a8803394095037a57076d70caaa550ab50b0a0768c35b4","target":"graph","created_at":"2026-05-18T03:07:41Z","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 the observation of a spin texture in a cold exciton gas in a GaAs/AlGaAs coupled quantum well structure. The spin texture is observed around the exciton rings. The observed phenomena include: a ring of linear polarization, a vortex of linear polarization with polarization perpendicular to the radial direction, an anisotropy in the exciton flux, a skew of the exciton fluxes in orthogonal circular polarizations and a corresponding four-leaf pattern of circular polarization, a periodic spin texture, and extended exciton coherence in the region of the polarization vortex. The data ind","authors_text":"A.A. High, A.C. Gossard, A.T. Hammack, A.V. Kavokin, J.R. Leonard, L.V. Butov, Sen Yang, T. Ostatnicky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-03-02T00:09:56Z","title":"Spin Texture in a Cold Exciton Gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0321","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":"sha256:0968467ee89b397c8a367a2cc9cb9983a5754a0f0ee7cfe18ad0ac69fe50ceec","target":"record","created_at":"2026-05-18T03:07:41Z","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":"db4d6b702afcf8ecf9bd50277c3f29a5982912e7824be1311b81a37ff605c94d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-03-02T00:09:56Z","title_canon_sha256":"05e15193772566cafcd6f7aa79d678be9feaf6c0f585220b530eca9348f73027"},"schema_version":"1.0","source":{"id":"1103.0321","kind":"arxiv","version":2}},"canonical_sha256":"597472d829d8a4c7b8fc800b285a633c43b038cea2a7f6d60ffd19cb81ce0338","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"597472d829d8a4c7b8fc800b285a633c43b038cea2a7f6d60ffd19cb81ce0338","first_computed_at":"2026-05-18T03:07:41.532213Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:07:41.532213Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iw2+KJJqweI8AnKQ6hqeguxa9Qk00EWPXvbs6LlWJgVNGxHqeeVsIN2NEsVgbGoFWMA6l6FTr7BRb2Cv9f1DDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:07:41.533000Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.0321","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0968467ee89b397c8a367a2cc9cb9983a5754a0f0ee7cfe18ad0ac69fe50ceec","sha256:05ea798d74215b7ac2a8803394095037a57076d70caaa550ab50b0a0768c35b4"],"state_sha256":"07000b3db410fd0390f05674b8066b72706396f17f401c989b5a5cc43317d277"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FAexhZ4FPNM5XL5I+jvuZHSOlXwz2jDxGtTggi+pKJ1PrtBwB5ieDhxJFW7X1ZjKmZXcTJiv4H4vRjZ7PmyGAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T19:04:56.557468Z","bundle_sha256":"efc0a1dd4559e5b4c1ad28059de0dde72fb849c4a466b8f5a813424e48bdf866"}}