{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:B6JWNWOCIYHXD7RRYD52R4D35C","short_pith_number":"pith:B6JWNWOC","canonical_record":{"source":{"id":"1104.3901","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-04-19T23:19:44Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"a8c335effe139d077e467a7ae61c3c0530767f7e21c15ed3997eea46e0f63a4c","abstract_canon_sha256":"3eb58b49be1973b2c98af40740f848d40d8a8a01810dd9ba01a0bed9b7a091a6"},"schema_version":"1.0"},"canonical_sha256":"0f9366d9c2460f71fe31c0fba8f07be889d957dd0f973b5e9f6df8f6da39c296","source":{"kind":"arxiv","id":"1104.3901","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3901","created_at":"2026-05-18T00:35:36Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3901v1","created_at":"2026-05-18T00:35:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3901","created_at":"2026-05-18T00:35:36Z"},{"alias_kind":"pith_short_12","alias_value":"B6JWNWOCIYHX","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"B6JWNWOCIYHXD7RR","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"B6JWNWOC","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:B6JWNWOCIYHXD7RRYD52R4D35C","target":"record","payload":{"canonical_record":{"source":{"id":"1104.3901","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-04-19T23:19:44Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"a8c335effe139d077e467a7ae61c3c0530767f7e21c15ed3997eea46e0f63a4c","abstract_canon_sha256":"3eb58b49be1973b2c98af40740f848d40d8a8a01810dd9ba01a0bed9b7a091a6"},"schema_version":"1.0"},"canonical_sha256":"0f9366d9c2460f71fe31c0fba8f07be889d957dd0f973b5e9f6df8f6da39c296","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:36.391613Z","signature_b64":"889GO3/OFcv4FtNnhUG39wCMIv2VTrxC5V6Ge6HClyNNvtr8JyQa3XnUV77u1E4emPu0uXqqKOT00pjcOYs/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f9366d9c2460f71fe31c0fba8f07be889d957dd0f973b5e9f6df8f6da39c296","last_reissued_at":"2026-05-18T00:35:36.391114Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:36.391114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.3901","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":"2026-05-18T00:35:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DkehCNIgdqCU5a+/3HEpwctj9cRK7q23OsSRJ5WlF7GVqS69k0GS/K9DvOQoComVkRnjTHahn5yRXtHAR3GLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:20:00.099746Z"},"content_sha256":"24a1544a897aab6cdd85fcf7795ffefeb145794614c4863160a296f7f0af0d07","schema_version":"1.0","event_id":"sha256:24a1544a897aab6cdd85fcf7795ffefeb145794614c4863160a296f7f0af0d07"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:B6JWNWOCIYHXD7RRYD52R4D35C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cold and Slow Molecular Beam","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.atom-ph","authors_text":"Dave Patterson, Hsin-I Lu, John M. Doyle, Julia Rasmussen, Matthew J. Wright","submitted_at":"2011-04-19T23:19:44Z","abstract_excerpt":"Employing a two-stage cryogenic buffer gas cell, we produce a cold, hydrodynamically extracted beam of calcium monohydride molecules with a near effusive velocity distribution. Beam dynamics, thermalization and slowing are studied using laser spectroscopy. The key to this hybrid, effusive-like beam source is a \"slowing cell\" placed immediately after a hydrodynamic, cryogenic source [Patterson et al., J. Chem. Phys., 2007, 126, 154307]. The resulting CaH beams are created in two regimes. One modestly boosted beam has a forward velocity of vf = 65 m/s, a narrow velocity spread, and a flux of 10^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3901","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":"2026-05-18T00:35:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gGKmXU9ISdLMKmGBhZjRrCja8g2KmJ3Y+MmcEV/yQeDfUkcdNmP35MEnAY6mSoYYZQT9mHNp20ZCPwZ4iafvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:20:00.100096Z"},"content_sha256":"786332d5f6840f4c5081f642b1172ee08fd4fa368b8d4678058330c1127bb822","schema_version":"1.0","event_id":"sha256:786332d5f6840f4c5081f642b1172ee08fd4fa368b8d4678058330c1127bb822"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B6JWNWOCIYHXD7RRYD52R4D35C/bundle.json","state_url":"https://pith.science/pith/B6JWNWOCIYHXD7RRYD52R4D35C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B6JWNWOCIYHXD7RRYD52R4D35C/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":"2026-06-03T12:20:00Z","links":{"resolver":"https://pith.science/pith/B6JWNWOCIYHXD7RRYD52R4D35C","bundle":"https://pith.science/pith/B6JWNWOCIYHXD7RRYD52R4D35C/bundle.json","state":"https://pith.science/pith/B6JWNWOCIYHXD7RRYD52R4D35C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B6JWNWOCIYHXD7RRYD52R4D35C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:B6JWNWOCIYHXD7RRYD52R4D35C","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":"3eb58b49be1973b2c98af40740f848d40d8a8a01810dd9ba01a0bed9b7a091a6","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-04-19T23:19:44Z","title_canon_sha256":"a8c335effe139d077e467a7ae61c3c0530767f7e21c15ed3997eea46e0f63a4c"},"schema_version":"1.0","source":{"id":"1104.3901","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3901","created_at":"2026-05-18T00:35:36Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3901v1","created_at":"2026-05-18T00:35:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3901","created_at":"2026-05-18T00:35:36Z"},{"alias_kind":"pith_short_12","alias_value":"B6JWNWOCIYHX","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"B6JWNWOCIYHXD7RR","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"B6JWNWOC","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:786332d5f6840f4c5081f642b1172ee08fd4fa368b8d4678058330c1127bb822","target":"graph","created_at":"2026-05-18T00:35:36Z","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":"Employing a two-stage cryogenic buffer gas cell, we produce a cold, hydrodynamically extracted beam of calcium monohydride molecules with a near effusive velocity distribution. Beam dynamics, thermalization and slowing are studied using laser spectroscopy. The key to this hybrid, effusive-like beam source is a \"slowing cell\" placed immediately after a hydrodynamic, cryogenic source [Patterson et al., J. Chem. Phys., 2007, 126, 154307]. The resulting CaH beams are created in two regimes. One modestly boosted beam has a forward velocity of vf = 65 m/s, a narrow velocity spread, and a flux of 10^","authors_text":"Dave Patterson, Hsin-I Lu, John M. Doyle, Julia Rasmussen, Matthew J. Wright","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-04-19T23:19:44Z","title":"Cold and Slow Molecular Beam"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3901","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":"sha256:24a1544a897aab6cdd85fcf7795ffefeb145794614c4863160a296f7f0af0d07","target":"record","created_at":"2026-05-18T00:35:36Z","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":"3eb58b49be1973b2c98af40740f848d40d8a8a01810dd9ba01a0bed9b7a091a6","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2011-04-19T23:19:44Z","title_canon_sha256":"a8c335effe139d077e467a7ae61c3c0530767f7e21c15ed3997eea46e0f63a4c"},"schema_version":"1.0","source":{"id":"1104.3901","kind":"arxiv","version":1}},"canonical_sha256":"0f9366d9c2460f71fe31c0fba8f07be889d957dd0f973b5e9f6df8f6da39c296","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f9366d9c2460f71fe31c0fba8f07be889d957dd0f973b5e9f6df8f6da39c296","first_computed_at":"2026-05-18T00:35:36.391114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:36.391114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"889GO3/OFcv4FtNnhUG39wCMIv2VTrxC5V6Ge6HClyNNvtr8JyQa3XnUV77u1E4emPu0uXqqKOT00pjcOYs/Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:36.391613Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.3901","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24a1544a897aab6cdd85fcf7795ffefeb145794614c4863160a296f7f0af0d07","sha256:786332d5f6840f4c5081f642b1172ee08fd4fa368b8d4678058330c1127bb822"],"state_sha256":"d0192af016861d1fc5361d8cadcd2da4c278c36f254a9d406887fbee0434fed1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rubN63XligobokZB2AFYt9aBy7tEZVeDpqWbRLqCnLkVY1EIaJccmphSxFFT/gTi3j892sqfTvjt4eou0zFZDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T12:20:00.102620Z","bundle_sha256":"4303e16a78c21ccfaf18c0e933de141a60a70cb317a670a8c031a9efb40776cb"}}