{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:YQALTRQTC6DSX2FTTUI4MNRNDR","short_pith_number":"pith:YQALTRQT","canonical_record":{"source":{"id":"1412.5141","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-12-16T19:56:47Z","cross_cats_sorted":[],"title_canon_sha256":"643022fdf57d18727fab8a44f84215a882c55240807858f2fbfa2aed17921361","abstract_canon_sha256":"e11859728e64bf26ce2263eb3cfc0f9ba9a5815bb80b9078442aa207f7a0e7aa"},"schema_version":"1.0"},"canonical_sha256":"c400b9c61317872be8b39d11c6362d1c4fc3b24e37f2488f3c297dcda5417e51","source":{"kind":"arxiv","id":"1412.5141","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.5141","created_at":"2026-05-18T02:29:02Z"},{"alias_kind":"arxiv_version","alias_value":"1412.5141v1","created_at":"2026-05-18T02:29:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.5141","created_at":"2026-05-18T02:29:02Z"},{"alias_kind":"pith_short_12","alias_value":"YQALTRQTC6DS","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YQALTRQTC6DSX2FT","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YQALTRQT","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:YQALTRQTC6DSX2FTTUI4MNRNDR","target":"record","payload":{"canonical_record":{"source":{"id":"1412.5141","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-12-16T19:56:47Z","cross_cats_sorted":[],"title_canon_sha256":"643022fdf57d18727fab8a44f84215a882c55240807858f2fbfa2aed17921361","abstract_canon_sha256":"e11859728e64bf26ce2263eb3cfc0f9ba9a5815bb80b9078442aa207f7a0e7aa"},"schema_version":"1.0"},"canonical_sha256":"c400b9c61317872be8b39d11c6362d1c4fc3b24e37f2488f3c297dcda5417e51","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:02.326952Z","signature_b64":"jXXSiAjlqgAqPw4FzrhQVSqTEqmqkDgKJtlX2aaxsGRb8f7EMakuGARJN4MTdjxaGO076MBKt3SZrlGynnkFBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c400b9c61317872be8b39d11c6362d1c4fc3b24e37f2488f3c297dcda5417e51","last_reissued_at":"2026-05-18T02:29:02.326500Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:02.326500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.5141","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":"2026-05-18T02:29:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NmDO1ooy9/D79wD1ulYQrkbbMPXinwSoCHCjziYHhh247G6YW5F3Kc4mFl12cCc7xADD32zFKEzmIDS4qn3LAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:17:08.366916Z"},"content_sha256":"8cecb235a2f902f2eb51a0304b660b3edd03a0dcd1ba33e101a3ce0e0fb27b3f","schema_version":"1.0","event_id":"sha256:8cecb235a2f902f2eb51a0304b660b3edd03a0dcd1ba33e101a3ce0e0fb27b3f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:YQALTRQTC6DSX2FTTUI4MNRNDR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of low-energy Na^+ -- Na total collision rate in an ion--neutral hybrid trap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"D. S. Goodman, F. A. Narducci, J. E. Wells, J. M. Kwolek, R. Bl\\\"umel, W. W. Smith","submitted_at":"2014-12-16T19:56:47Z","abstract_excerpt":"We present measurements of the total elastic and resonant charge-exchange ion-atom collision rate coefficient $k_\\mathrm{ia}$ of cold sodium (\\ce{Na}) with optically-dark low energy \\ce{Na+} ions in a hybrid ion-neutral trap. To determine $k_\\mathrm{ia}$, we measured the trap loading and loss from both a \\ce{Na} magneto-optical trap (MOT) and a linear radio frequency quadrupole Paul trap. We found the total rate coefficient to be $7.4 \\pm 1.9 \\times 10^{-8}$ cm$^3$/s for the type I \\ce{Na} MOT immersed within an $\\approx 140$ K ion cloud and $1.10 \\pm 0.25 \\times 10^{-7}$ cm$^3$/s for the type"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.5141","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":"2026-05-18T02:29:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qJwMp+85IaidedqlRb2CR+1K40A9b6oucaNL2E9vAVGHzkozhWghwmjYUhyUqFt4NZ8acAUVBdquqXx/E2ccAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:17:08.367264Z"},"content_sha256":"8afb1de62f7b418b84a3b8d8dd1935d24fbb6f832ab7b4b93b37510c039769bd","schema_version":"1.0","event_id":"sha256:8afb1de62f7b418b84a3b8d8dd1935d24fbb6f832ab7b4b93b37510c039769bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YQALTRQTC6DSX2FTTUI4MNRNDR/bundle.json","state_url":"https://pith.science/pith/YQALTRQTC6DSX2FTTUI4MNRNDR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YQALTRQTC6DSX2FTTUI4MNRNDR/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":"2026-06-04T19:17:08Z","links":{"resolver":"https://pith.science/pith/YQALTRQTC6DSX2FTTUI4MNRNDR","bundle":"https://pith.science/pith/YQALTRQTC6DSX2FTTUI4MNRNDR/bundle.json","state":"https://pith.science/pith/YQALTRQTC6DSX2FTTUI4MNRNDR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YQALTRQTC6DSX2FTTUI4MNRNDR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:YQALTRQTC6DSX2FTTUI4MNRNDR","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":"e11859728e64bf26ce2263eb3cfc0f9ba9a5815bb80b9078442aa207f7a0e7aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-12-16T19:56:47Z","title_canon_sha256":"643022fdf57d18727fab8a44f84215a882c55240807858f2fbfa2aed17921361"},"schema_version":"1.0","source":{"id":"1412.5141","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.5141","created_at":"2026-05-18T02:29:02Z"},{"alias_kind":"arxiv_version","alias_value":"1412.5141v1","created_at":"2026-05-18T02:29:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.5141","created_at":"2026-05-18T02:29:02Z"},{"alias_kind":"pith_short_12","alias_value":"YQALTRQTC6DS","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"YQALTRQTC6DSX2FT","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"YQALTRQT","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:8afb1de62f7b418b84a3b8d8dd1935d24fbb6f832ab7b4b93b37510c039769bd","target":"graph","created_at":"2026-05-18T02:29:02Z","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 present measurements of the total elastic and resonant charge-exchange ion-atom collision rate coefficient $k_\\mathrm{ia}$ of cold sodium (\\ce{Na}) with optically-dark low energy \\ce{Na+} ions in a hybrid ion-neutral trap. To determine $k_\\mathrm{ia}$, we measured the trap loading and loss from both a \\ce{Na} magneto-optical trap (MOT) and a linear radio frequency quadrupole Paul trap. We found the total rate coefficient to be $7.4 \\pm 1.9 \\times 10^{-8}$ cm$^3$/s for the type I \\ce{Na} MOT immersed within an $\\approx 140$ K ion cloud and $1.10 \\pm 0.25 \\times 10^{-7}$ cm$^3$/s for the type","authors_text":"D. S. Goodman, F. A. Narducci, J. E. Wells, J. M. Kwolek, R. Bl\\\"umel, W. W. Smith","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-12-16T19:56:47Z","title":"Measurement of low-energy Na^+ -- Na total collision rate in an ion--neutral hybrid trap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.5141","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":"sha256:8cecb235a2f902f2eb51a0304b660b3edd03a0dcd1ba33e101a3ce0e0fb27b3f","target":"record","created_at":"2026-05-18T02:29:02Z","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":"e11859728e64bf26ce2263eb3cfc0f9ba9a5815bb80b9078442aa207f7a0e7aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2014-12-16T19:56:47Z","title_canon_sha256":"643022fdf57d18727fab8a44f84215a882c55240807858f2fbfa2aed17921361"},"schema_version":"1.0","source":{"id":"1412.5141","kind":"arxiv","version":1}},"canonical_sha256":"c400b9c61317872be8b39d11c6362d1c4fc3b24e37f2488f3c297dcda5417e51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c400b9c61317872be8b39d11c6362d1c4fc3b24e37f2488f3c297dcda5417e51","first_computed_at":"2026-05-18T02:29:02.326500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:02.326500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jXXSiAjlqgAqPw4FzrhQVSqTEqmqkDgKJtlX2aaxsGRb8f7EMakuGARJN4MTdjxaGO076MBKt3SZrlGynnkFBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:02.326952Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.5141","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8cecb235a2f902f2eb51a0304b660b3edd03a0dcd1ba33e101a3ce0e0fb27b3f","sha256:8afb1de62f7b418b84a3b8d8dd1935d24fbb6f832ab7b4b93b37510c039769bd"],"state_sha256":"34737088ea68e3c1ba8b5bb7cab541832cbdb3fb3a1c3dc71bd3fbdaebd83009"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L0N4ANuosgY50VKcDBcdExBsLdyiR50i80/BdyX94HdrmGxN1nPMl0QLzFGH6Mx0udLnC1KDwxRRQwSnybxpAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T19:17:08.369224Z","bundle_sha256":"5f3f41ad9bfb9fa7b691fb014b0523c35d3e8b754da7e9f85504b17782e6ffc3"}}