{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:BEPEGFQRSRPA7NPWHCTLIEWUWT","short_pith_number":"pith:BEPEGFQR","canonical_record":{"source":{"id":"1101.3602","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-01-19T02:59:02Z","cross_cats_sorted":[],"title_canon_sha256":"745a02ab41d722fe22cd68dd43f61c7ad92ff45ffe3b92670a2fe82a6713ff42","abstract_canon_sha256":"658111495e47c844d7299d2fae76e981b4a458e3ea907499c3d3bbbd86a2203c"},"schema_version":"1.0"},"canonical_sha256":"091e431611945e0fb5f638a6b412d4b4f16f2233595b8309360020f4ef8d38ed","source":{"kind":"arxiv","id":"1101.3602","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.3602","created_at":"2026-05-18T02:22:51Z"},{"alias_kind":"arxiv_version","alias_value":"1101.3602v1","created_at":"2026-05-18T02:22:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.3602","created_at":"2026-05-18T02:22:51Z"},{"alias_kind":"pith_short_12","alias_value":"BEPEGFQRSRPA","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"BEPEGFQRSRPA7NPW","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"BEPEGFQR","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:BEPEGFQRSRPA7NPWHCTLIEWUWT","target":"record","payload":{"canonical_record":{"source":{"id":"1101.3602","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-01-19T02:59:02Z","cross_cats_sorted":[],"title_canon_sha256":"745a02ab41d722fe22cd68dd43f61c7ad92ff45ffe3b92670a2fe82a6713ff42","abstract_canon_sha256":"658111495e47c844d7299d2fae76e981b4a458e3ea907499c3d3bbbd86a2203c"},"schema_version":"1.0"},"canonical_sha256":"091e431611945e0fb5f638a6b412d4b4f16f2233595b8309360020f4ef8d38ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:51.515728Z","signature_b64":"3BdBqOW04nQyNWm348N3Supj8JlAF/wjvjLkbZSivJpbR8ImWhphaCEwPaLw+uXoYmE9I6oCBhNWIpZGBJqfDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"091e431611945e0fb5f638a6b412d4b4f16f2233595b8309360020f4ef8d38ed","last_reissued_at":"2026-05-18T02:22:51.515226Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:51.515226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1101.3602","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":"2026-05-18T02:22:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OAQYFLDBfpGT1nxKX5qzJ+7lLJ1QCXkS+dsdMlgkvTudHaiumBGcewBVQc0DrRyrL1YALnSZHNGThHtXCsDfBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T17:15:34.632026Z"},"content_sha256":"c1c47afcb93efe81ea1eeeddabc61b185e19fce2d31b5f5d8b7fb8bd18dc5058","schema_version":"1.0","event_id":"sha256:c1c47afcb93efe81ea1eeeddabc61b185e19fce2d31b5f5d8b7fb8bd18dc5058"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:BEPEGFQRSRPA7NPWHCTLIEWUWT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A pulsed Sisyphus scheme for laser cooling of atomic (anti)hydrogen","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"J. V. Porto, Roger C. Brown, Saijun Wu, William D. Phillips","submitted_at":"2011-01-19T02:59:02Z","abstract_excerpt":"We propose a laser cooling technique in which atoms are selectively excited to a dressed metastable state whose light shift and decay rate are spatially correlated for Sisyphus cooling. The case of cooling magnetically trapped (anti)hydrogen with the 1S-2S-3P transitions using pulsed ultra violet and continuous-wave visible lasers is numerically simulated. We find a number of appealing features including rapid 3-dimensional cooling from ~1 K to recoil-limited, millikelvin temperatures, as well as suppressed spin-flip loss and manageable photoionization loss."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.3602","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":"2026-05-18T02:22:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"InqlA94oGnmRDF1zhq5P4KlKKIHPWhu0WInRsL37oheVJjF9k5HKAWU9KDfSS3yR9mtpA92vmzPthS/mpxxHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T17:15:34.632384Z"},"content_sha256":"7c3be83ada509606aa65d21084f49bf97e37260bfdcb1c08b9701805d0d9b935","schema_version":"1.0","event_id":"sha256:7c3be83ada509606aa65d21084f49bf97e37260bfdcb1c08b9701805d0d9b935"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT/bundle.json","state_url":"https://pith.science/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT/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":"2026-06-27T17:15:34Z","links":{"resolver":"https://pith.science/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT","bundle":"https://pith.science/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT/bundle.json","state":"https://pith.science/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BEPEGFQRSRPA7NPWHCTLIEWUWT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:BEPEGFQRSRPA7NPWHCTLIEWUWT","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":"658111495e47c844d7299d2fae76e981b4a458e3ea907499c3d3bbbd86a2203c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-01-19T02:59:02Z","title_canon_sha256":"745a02ab41d722fe22cd68dd43f61c7ad92ff45ffe3b92670a2fe82a6713ff42"},"schema_version":"1.0","source":{"id":"1101.3602","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1101.3602","created_at":"2026-05-18T02:22:51Z"},{"alias_kind":"arxiv_version","alias_value":"1101.3602v1","created_at":"2026-05-18T02:22:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.3602","created_at":"2026-05-18T02:22:51Z"},{"alias_kind":"pith_short_12","alias_value":"BEPEGFQRSRPA","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"BEPEGFQRSRPA7NPW","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"BEPEGFQR","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:7c3be83ada509606aa65d21084f49bf97e37260bfdcb1c08b9701805d0d9b935","target":"graph","created_at":"2026-05-18T02:22:51Z","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 propose a laser cooling technique in which atoms are selectively excited to a dressed metastable state whose light shift and decay rate are spatially correlated for Sisyphus cooling. The case of cooling magnetically trapped (anti)hydrogen with the 1S-2S-3P transitions using pulsed ultra violet and continuous-wave visible lasers is numerically simulated. We find a number of appealing features including rapid 3-dimensional cooling from ~1 K to recoil-limited, millikelvin temperatures, as well as suppressed spin-flip loss and manageable photoionization loss.","authors_text":"J. V. Porto, Roger C. Brown, Saijun Wu, William D. Phillips","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-01-19T02:59:02Z","title":"A pulsed Sisyphus scheme for laser cooling of atomic (anti)hydrogen"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.3602","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:c1c47afcb93efe81ea1eeeddabc61b185e19fce2d31b5f5d8b7fb8bd18dc5058","target":"record","created_at":"2026-05-18T02:22:51Z","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":"658111495e47c844d7299d2fae76e981b4a458e3ea907499c3d3bbbd86a2203c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-01-19T02:59:02Z","title_canon_sha256":"745a02ab41d722fe22cd68dd43f61c7ad92ff45ffe3b92670a2fe82a6713ff42"},"schema_version":"1.0","source":{"id":"1101.3602","kind":"arxiv","version":1}},"canonical_sha256":"091e431611945e0fb5f638a6b412d4b4f16f2233595b8309360020f4ef8d38ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"091e431611945e0fb5f638a6b412d4b4f16f2233595b8309360020f4ef8d38ed","first_computed_at":"2026-05-18T02:22:51.515226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:22:51.515226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3BdBqOW04nQyNWm348N3Supj8JlAF/wjvjLkbZSivJpbR8ImWhphaCEwPaLw+uXoYmE9I6oCBhNWIpZGBJqfDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:22:51.515728Z","signed_message":"canonical_sha256_bytes"},"source_id":"1101.3602","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c1c47afcb93efe81ea1eeeddabc61b185e19fce2d31b5f5d8b7fb8bd18dc5058","sha256:7c3be83ada509606aa65d21084f49bf97e37260bfdcb1c08b9701805d0d9b935"],"state_sha256":"842f544027df3016d086caaf5d96d59504256052054b1a018c46e6dd6b09e81c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hd88gwUjA13zD8PQ8Z1UrySXA3zASqJiEnKcYcVpHh8yHGIlzxMtXYc/2nLu8oPI4Efu1ddBwRlogki2pdytDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T17:15:34.634261Z","bundle_sha256":"85d175d995d35365070852f335997603a7e3e54f3bd4b568e23fb077502b0f96"}}