{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JWMSAM473FO466TAHO4E5YFMVY","short_pith_number":"pith:JWMSAM47","canonical_record":{"source":{"id":"1806.09940","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-06-26T12:25:09Z","cross_cats_sorted":[],"title_canon_sha256":"0136849464a4afbdf14db66fd30c87608f7b3b53aab6e569366c23c7b1e67388","abstract_canon_sha256":"dc4c1839e75b126b90e3dcf3dc13737149ea5c1c016079c031bcf012f134aefa"},"schema_version":"1.0"},"canonical_sha256":"4d9920339fd95dcf7a603bb84ee0acae1c3d637eddf43cae6ec06a3016267b69","source":{"kind":"arxiv","id":"1806.09940","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.09940","created_at":"2026-05-18T00:00:19Z"},{"alias_kind":"arxiv_version","alias_value":"1806.09940v1","created_at":"2026-05-18T00:00:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.09940","created_at":"2026-05-18T00:00:19Z"},{"alias_kind":"pith_short_12","alias_value":"JWMSAM473FO4","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"JWMSAM473FO466TA","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"JWMSAM47","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JWMSAM473FO466TAHO4E5YFMVY","target":"record","payload":{"canonical_record":{"source":{"id":"1806.09940","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-06-26T12:25:09Z","cross_cats_sorted":[],"title_canon_sha256":"0136849464a4afbdf14db66fd30c87608f7b3b53aab6e569366c23c7b1e67388","abstract_canon_sha256":"dc4c1839e75b126b90e3dcf3dc13737149ea5c1c016079c031bcf012f134aefa"},"schema_version":"1.0"},"canonical_sha256":"4d9920339fd95dcf7a603bb84ee0acae1c3d637eddf43cae6ec06a3016267b69","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:19.077560Z","signature_b64":"X9zP3/pN7T4IZFklbwIxLHf96N2Y/2mkqkvoamMfocN0fKODXU6UuE0LDgdA3xuDMj8tI1GVGs18F+wLOTVFDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4d9920339fd95dcf7a603bb84ee0acae1c3d637eddf43cae6ec06a3016267b69","last_reissued_at":"2026-05-18T00:00:19.076985Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:19.076985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.09940","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":"2026-05-18T00:00:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rTC7IxE2Vl5CRsCwD/VIzIkBQfGK9h4wJkb9sTfEBTRDVGyEu2yf9xBR4uiL5B1nfs3xv5My01GvddJBw22UCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:46:38.264553Z"},"content_sha256":"67f237c1d154649e31d840d26598f87067245e150578c3d261971951193a7326","schema_version":"1.0","event_id":"sha256:67f237c1d154649e31d840d26598f87067245e150578c3d261971951193a7326"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JWMSAM473FO466TAHO4E5YFMVY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cooling a Bose gas by three-body losses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Isabelle Bouchoule, Max Schemmer","submitted_at":"2018-06-26T12:25:09Z","abstract_excerpt":"We report the first demonstration of cooling by three-body losses in a Bose gas. We use a harmonically confined one-dimensional (1D) Bose gas in the quasi-condensate regime and, as the atom number decreases under the effect of three-body losses, the temperature $T$ drops up to a factor four. The ratio $k_B T/(m c^2)$ stays close to 0.64, where $m$ is the atomic mass and $c$ the sound speed in the trap center. The dimensionless 1D interaction parameter $\\gamma$, evaluated at the trap center, spans more than two order of magnitudes over the different sets of data. We present a theoretical analys"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.09940","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":"2026-05-18T00:00:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OYyN8wKmult65qb1hxLzF9dtHj02/D14K7nEsQPpQQp7h+DOpZSkERSzaVA8rbw7h+EClusK4xRVV7VmC2XyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:46:38.265206Z"},"content_sha256":"4266320eadf49c973a4582227422bfb3572507eb76a7bb280d82fe84d102c2ee","schema_version":"1.0","event_id":"sha256:4266320eadf49c973a4582227422bfb3572507eb76a7bb280d82fe84d102c2ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JWMSAM473FO466TAHO4E5YFMVY/bundle.json","state_url":"https://pith.science/pith/JWMSAM473FO466TAHO4E5YFMVY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JWMSAM473FO466TAHO4E5YFMVY/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":"2026-06-07T22:46:38Z","links":{"resolver":"https://pith.science/pith/JWMSAM473FO466TAHO4E5YFMVY","bundle":"https://pith.science/pith/JWMSAM473FO466TAHO4E5YFMVY/bundle.json","state":"https://pith.science/pith/JWMSAM473FO466TAHO4E5YFMVY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JWMSAM473FO466TAHO4E5YFMVY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JWMSAM473FO466TAHO4E5YFMVY","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":"dc4c1839e75b126b90e3dcf3dc13737149ea5c1c016079c031bcf012f134aefa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-06-26T12:25:09Z","title_canon_sha256":"0136849464a4afbdf14db66fd30c87608f7b3b53aab6e569366c23c7b1e67388"},"schema_version":"1.0","source":{"id":"1806.09940","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.09940","created_at":"2026-05-18T00:00:19Z"},{"alias_kind":"arxiv_version","alias_value":"1806.09940v1","created_at":"2026-05-18T00:00:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.09940","created_at":"2026-05-18T00:00:19Z"},{"alias_kind":"pith_short_12","alias_value":"JWMSAM473FO4","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"JWMSAM473FO466TA","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"JWMSAM47","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:4266320eadf49c973a4582227422bfb3572507eb76a7bb280d82fe84d102c2ee","target":"graph","created_at":"2026-05-18T00:00:19Z","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 the first demonstration of cooling by three-body losses in a Bose gas. We use a harmonically confined one-dimensional (1D) Bose gas in the quasi-condensate regime and, as the atom number decreases under the effect of three-body losses, the temperature $T$ drops up to a factor four. The ratio $k_B T/(m c^2)$ stays close to 0.64, where $m$ is the atomic mass and $c$ the sound speed in the trap center. The dimensionless 1D interaction parameter $\\gamma$, evaluated at the trap center, spans more than two order of magnitudes over the different sets of data. We present a theoretical analys","authors_text":"Isabelle Bouchoule, Max Schemmer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-06-26T12:25:09Z","title":"Cooling a Bose gas by three-body losses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.09940","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":"sha256:67f237c1d154649e31d840d26598f87067245e150578c3d261971951193a7326","target":"record","created_at":"2026-05-18T00:00:19Z","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":"dc4c1839e75b126b90e3dcf3dc13737149ea5c1c016079c031bcf012f134aefa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-06-26T12:25:09Z","title_canon_sha256":"0136849464a4afbdf14db66fd30c87608f7b3b53aab6e569366c23c7b1e67388"},"schema_version":"1.0","source":{"id":"1806.09940","kind":"arxiv","version":1}},"canonical_sha256":"4d9920339fd95dcf7a603bb84ee0acae1c3d637eddf43cae6ec06a3016267b69","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d9920339fd95dcf7a603bb84ee0acae1c3d637eddf43cae6ec06a3016267b69","first_computed_at":"2026-05-18T00:00:19.076985Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:19.076985Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X9zP3/pN7T4IZFklbwIxLHf96N2Y/2mkqkvoamMfocN0fKODXU6UuE0LDgdA3xuDMj8tI1GVGs18F+wLOTVFDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:19.077560Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.09940","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67f237c1d154649e31d840d26598f87067245e150578c3d261971951193a7326","sha256:4266320eadf49c973a4582227422bfb3572507eb76a7bb280d82fe84d102c2ee"],"state_sha256":"5e6f0d783c368a80d060d807ffa73e0e7fdaade3a8d9ffcc416f23f91f3a8da8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+uqI5/cJxvK9kpsOalt+YJMXlo+/8QQN1CeIQ4gZ4abdMPTfjOjpEZlvc9nYTlpA4fSj+NgqYhCJr6tqDNVGDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T22:46:38.268467Z","bundle_sha256":"c6096aacd63e8179c04503f7fe0811d197e9ad6bf9ef59cec31308b56b2a4620"}}