{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:TLT4UK4NRP7EX5U3DEFOWWTT72","short_pith_number":"pith:TLT4UK4N","canonical_record":{"source":{"id":"1012.1574","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-12-07T18:35:38Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"5f6b553c34d8355e4ba79121d7335b58b1da6d4ec660d3d0034e0ad228aa9f2e","abstract_canon_sha256":"00b07c7be0dbd2617e6d4efdb21fb4b59ef7abfacd9e17ffecc20e6ed950f569"},"schema_version":"1.0"},"canonical_sha256":"9ae7ca2b8d8bfe4bf69b190aeb5a73fea82c40e6bbe83ac7339490ba686ff81a","source":{"kind":"arxiv","id":"1012.1574","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1574","created_at":"2026-05-18T02:04:32Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1574v1","created_at":"2026-05-18T02:04:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1574","created_at":"2026-05-18T02:04:32Z"},{"alias_kind":"pith_short_12","alias_value":"TLT4UK4NRP7E","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"TLT4UK4NRP7EX5U3","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"TLT4UK4N","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:TLT4UK4NRP7EX5U3DEFOWWTT72","target":"record","payload":{"canonical_record":{"source":{"id":"1012.1574","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-12-07T18:35:38Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"5f6b553c34d8355e4ba79121d7335b58b1da6d4ec660d3d0034e0ad228aa9f2e","abstract_canon_sha256":"00b07c7be0dbd2617e6d4efdb21fb4b59ef7abfacd9e17ffecc20e6ed950f569"},"schema_version":"1.0"},"canonical_sha256":"9ae7ca2b8d8bfe4bf69b190aeb5a73fea82c40e6bbe83ac7339490ba686ff81a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:32.011845Z","signature_b64":"Wx8tMYiuNsNkPSzzCYe3tzP4n3C8kF1Bgsfrl2/4ggaCWMqklIr4U1WojOaJtzfP90QQSkCrqVD96co39TNwAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ae7ca2b8d8bfe4bf69b190aeb5a73fea82c40e6bbe83ac7339490ba686ff81a","last_reissued_at":"2026-05-18T02:04:32.010986Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:32.010986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.1574","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":"2026-05-18T02:04:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b8p8MC2o9R6TiVtioxZyulPvLcopHU4BLc34py1WM92Zehr3djSRz0zncUTUMEDUB1b5tqgIzkSnW7hIM6KKDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:20:28.958802Z"},"content_sha256":"8634c5a2fa26402ed77de5b0d24ff8e30a1918f38aac20d11c0b6158f86814d9","schema_version":"1.0","event_id":"sha256:8634c5a2fa26402ed77de5b0d24ff8e30a1918f38aac20d11c0b6158f86814d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:TLT4UK4NRP7EX5U3DEFOWWTT72","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Photon Counting for Bragg Spectroscopy of Quantum Gases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"D. S. Jin, E. A. Cornell, J. M. Pino, P. Makotyn, R. J. Wild","submitted_at":"2010-12-07T18:35:38Z","abstract_excerpt":"We demonstrate a photon-counting technique for detecting Bragg excitation of an ultracold gas of atoms. By measuring the response of the light field to the atoms, we derive a signal independent of traditional time-of-flight atom-imaging techniques. With heterodyne detection we achieve photon shot-noise limited detection of the amplification or depletion of one of the Bragg laser beams. Photon counting for Bragg spectroscopy will be useful for strongly interacting gases where atom-imaging detection fails. In addition, this technique provides the ability to resolve the evolution of excitations a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1574","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":"2026-05-18T02:04:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nO6QLsYSJIozqwwP6KLE7kBEhTrMwDe2HQNjzzgt7zynKHk+xFAEfa3wphFCVVuVvkZajrZhONIZ/fjpuV63Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:20:28.959150Z"},"content_sha256":"3842a17b885fafb86a70223e104db89521bc12d75c978867a607914517d96cb4","schema_version":"1.0","event_id":"sha256:3842a17b885fafb86a70223e104db89521bc12d75c978867a607914517d96cb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TLT4UK4NRP7EX5U3DEFOWWTT72/bundle.json","state_url":"https://pith.science/pith/TLT4UK4NRP7EX5U3DEFOWWTT72/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TLT4UK4NRP7EX5U3DEFOWWTT72/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":"2026-05-19T22:20:28Z","links":{"resolver":"https://pith.science/pith/TLT4UK4NRP7EX5U3DEFOWWTT72","bundle":"https://pith.science/pith/TLT4UK4NRP7EX5U3DEFOWWTT72/bundle.json","state":"https://pith.science/pith/TLT4UK4NRP7EX5U3DEFOWWTT72/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TLT4UK4NRP7EX5U3DEFOWWTT72/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:TLT4UK4NRP7EX5U3DEFOWWTT72","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":"00b07c7be0dbd2617e6d4efdb21fb4b59ef7abfacd9e17ffecc20e6ed950f569","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-12-07T18:35:38Z","title_canon_sha256":"5f6b553c34d8355e4ba79121d7335b58b1da6d4ec660d3d0034e0ad228aa9f2e"},"schema_version":"1.0","source":{"id":"1012.1574","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.1574","created_at":"2026-05-18T02:04:32Z"},{"alias_kind":"arxiv_version","alias_value":"1012.1574v1","created_at":"2026-05-18T02:04:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.1574","created_at":"2026-05-18T02:04:32Z"},{"alias_kind":"pith_short_12","alias_value":"TLT4UK4NRP7E","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"TLT4UK4NRP7EX5U3","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"TLT4UK4N","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:3842a17b885fafb86a70223e104db89521bc12d75c978867a607914517d96cb4","target":"graph","created_at":"2026-05-18T02:04:32Z","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":"We demonstrate a photon-counting technique for detecting Bragg excitation of an ultracold gas of atoms. By measuring the response of the light field to the atoms, we derive a signal independent of traditional time-of-flight atom-imaging techniques. With heterodyne detection we achieve photon shot-noise limited detection of the amplification or depletion of one of the Bragg laser beams. Photon counting for Bragg spectroscopy will be useful for strongly interacting gases where atom-imaging detection fails. In addition, this technique provides the ability to resolve the evolution of excitations a","authors_text":"D. S. Jin, E. A. Cornell, J. M. Pino, P. Makotyn, R. J. Wild","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-12-07T18:35:38Z","title":"Photon Counting for Bragg Spectroscopy of Quantum Gases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.1574","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":"sha256:8634c5a2fa26402ed77de5b0d24ff8e30a1918f38aac20d11c0b6158f86814d9","target":"record","created_at":"2026-05-18T02:04:32Z","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":"00b07c7be0dbd2617e6d4efdb21fb4b59ef7abfacd9e17ffecc20e6ed950f569","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2010-12-07T18:35:38Z","title_canon_sha256":"5f6b553c34d8355e4ba79121d7335b58b1da6d4ec660d3d0034e0ad228aa9f2e"},"schema_version":"1.0","source":{"id":"1012.1574","kind":"arxiv","version":1}},"canonical_sha256":"9ae7ca2b8d8bfe4bf69b190aeb5a73fea82c40e6bbe83ac7339490ba686ff81a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ae7ca2b8d8bfe4bf69b190aeb5a73fea82c40e6bbe83ac7339490ba686ff81a","first_computed_at":"2026-05-18T02:04:32.010986Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:32.010986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wx8tMYiuNsNkPSzzCYe3tzP4n3C8kF1Bgsfrl2/4ggaCWMqklIr4U1WojOaJtzfP90QQSkCrqVD96co39TNwAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:32.011845Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.1574","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8634c5a2fa26402ed77de5b0d24ff8e30a1918f38aac20d11c0b6158f86814d9","sha256:3842a17b885fafb86a70223e104db89521bc12d75c978867a607914517d96cb4"],"state_sha256":"889393a71c55829aaadc98eb89fd970bf2e4fcd001eb242ab46fea9163662ac5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gRGOZzLpfloPZFruBU8+dJ2jRwSL3vDemzxXZo8LPGMB4bOvxYeCsBlV6XEIW0+HFTThwsMwKkd91ypDxzCyCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T22:20:28.961282Z","bundle_sha256":"c017e6230de8ee343861cb7cbfd65b58453fdd4beaf16739ba3fc7b84f4befc2"}}