{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:NMIIBPCB3GXNGNMQURXQS6SDDB","short_pith_number":"pith:NMIIBPCB","canonical_record":{"source":{"id":"1206.5023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-06-21T21:55:25Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"dd86443378f5fa7e58dccf5c94b508b9378d316890a8fd86584572096fb2bc33","abstract_canon_sha256":"b13deb1c5e6bb68873ffb6482d66c0df2de4f824897bbc895df3def099536c2e"},"schema_version":"1.0"},"canonical_sha256":"6b1080bc41d9aed33590a46f097a4318666e7df070d674b5d789d99c89dae7a9","source":{"kind":"arxiv","id":"1206.5023","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5023","created_at":"2026-05-18T03:45:43Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5023v1","created_at":"2026-05-18T03:45:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5023","created_at":"2026-05-18T03:45:43Z"},{"alias_kind":"pith_short_12","alias_value":"NMIIBPCB3GXN","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NMIIBPCB3GXNGNMQ","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NMIIBPCB","created_at":"2026-05-18T12:27:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:NMIIBPCB3GXNGNMQURXQS6SDDB","target":"record","payload":{"canonical_record":{"source":{"id":"1206.5023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-06-21T21:55:25Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"dd86443378f5fa7e58dccf5c94b508b9378d316890a8fd86584572096fb2bc33","abstract_canon_sha256":"b13deb1c5e6bb68873ffb6482d66c0df2de4f824897bbc895df3def099536c2e"},"schema_version":"1.0"},"canonical_sha256":"6b1080bc41d9aed33590a46f097a4318666e7df070d674b5d789d99c89dae7a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:45:43.411845Z","signature_b64":"mitP2qbGNX3YWjDN85s1E2SuLaHEayc2I+XAGV0cNIihhyoAt0YGRQIOlDvl3WE2Sp/KS3sd/Of3QW4tPW/NAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b1080bc41d9aed33590a46f097a4318666e7df070d674b5d789d99c89dae7a9","last_reissued_at":"2026-05-18T03:45:43.411176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:45:43.411176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.5023","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":"2026-05-18T03:45:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MmZSdEzu8As56I3onFEvVQk5eiKBfH22g+YstflkZBTwGkhE2DZRLpzZaQxROQHNfDgovBfgSy0a9ZxT0I5bBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:03:06.740056Z"},"content_sha256":"38e9e4c30fa702b6302a907dcc51eb3e434a6164dea2e473d1ecfdddd61ef452","schema_version":"1.0","event_id":"sha256:38e9e4c30fa702b6302a907dcc51eb3e434a6164dea2e473d1ecfdddd61ef452"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:NMIIBPCB3GXNGNMQURXQS6SDDB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultracold Fermionic Feshbach Molecules of $^{23}$Na$^{40}$K","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Cheng-Hsun Wu, Jee Woo Park, Martin W. Zwierlein, Peyman Ahmadi, Sebastian Will","submitted_at":"2012-06-21T21:55:25Z","abstract_excerpt":"We report on the formation of ultracold fermionic Feshbach molecules of $^{23}$Na$^{40}$K, the first fermionic molecule that is chemically stable in its ground state. The lifetime of the nearly degenerate molecular gas exceeds 100 ms in the vicinity of the Feshbach resonance. The measured dependence of the molecular binding energy on the magnetic field demonstrates the open-channel character of the molecules over a wide field range and implies significant singlet admixture. This will enable efficient transfer into the singlet vibrational ground state, resulting in a stable molecular Fermi gas "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5023","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":"2026-05-18T03:45:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xKEJf1xWxfdQ3N684gz2bWys9gUmKh9iq2jCYKHSaVSdtS5mT9xJ9OldlzxDym41nNTXsypzWWGFUVdlgZSDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:03:06.740449Z"},"content_sha256":"b95b5baa03096c860c352c0f85812c5b06ba2b048bcf4720ddac8b92b86cf247","schema_version":"1.0","event_id":"sha256:b95b5baa03096c860c352c0f85812c5b06ba2b048bcf4720ddac8b92b86cf247"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NMIIBPCB3GXNGNMQURXQS6SDDB/bundle.json","state_url":"https://pith.science/pith/NMIIBPCB3GXNGNMQURXQS6SDDB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NMIIBPCB3GXNGNMQURXQS6SDDB/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":"2026-05-26T06:03:06Z","links":{"resolver":"https://pith.science/pith/NMIIBPCB3GXNGNMQURXQS6SDDB","bundle":"https://pith.science/pith/NMIIBPCB3GXNGNMQURXQS6SDDB/bundle.json","state":"https://pith.science/pith/NMIIBPCB3GXNGNMQURXQS6SDDB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NMIIBPCB3GXNGNMQURXQS6SDDB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NMIIBPCB3GXNGNMQURXQS6SDDB","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":"b13deb1c5e6bb68873ffb6482d66c0df2de4f824897bbc895df3def099536c2e","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-06-21T21:55:25Z","title_canon_sha256":"dd86443378f5fa7e58dccf5c94b508b9378d316890a8fd86584572096fb2bc33"},"schema_version":"1.0","source":{"id":"1206.5023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.5023","created_at":"2026-05-18T03:45:43Z"},{"alias_kind":"arxiv_version","alias_value":"1206.5023v1","created_at":"2026-05-18T03:45:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.5023","created_at":"2026-05-18T03:45:43Z"},{"alias_kind":"pith_short_12","alias_value":"NMIIBPCB3GXN","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NMIIBPCB3GXNGNMQ","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NMIIBPCB","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:b95b5baa03096c860c352c0f85812c5b06ba2b048bcf4720ddac8b92b86cf247","target":"graph","created_at":"2026-05-18T03:45:43Z","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 on the formation of ultracold fermionic Feshbach molecules of $^{23}$Na$^{40}$K, the first fermionic molecule that is chemically stable in its ground state. The lifetime of the nearly degenerate molecular gas exceeds 100 ms in the vicinity of the Feshbach resonance. The measured dependence of the molecular binding energy on the magnetic field demonstrates the open-channel character of the molecules over a wide field range and implies significant singlet admixture. This will enable efficient transfer into the singlet vibrational ground state, resulting in a stable molecular Fermi gas ","authors_text":"Cheng-Hsun Wu, Jee Woo Park, Martin W. Zwierlein, Peyman Ahmadi, Sebastian Will","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-06-21T21:55:25Z","title":"Ultracold Fermionic Feshbach Molecules of $^{23}$Na$^{40}$K"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.5023","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":"sha256:38e9e4c30fa702b6302a907dcc51eb3e434a6164dea2e473d1ecfdddd61ef452","target":"record","created_at":"2026-05-18T03:45:43Z","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":"b13deb1c5e6bb68873ffb6482d66c0df2de4f824897bbc895df3def099536c2e","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2012-06-21T21:55:25Z","title_canon_sha256":"dd86443378f5fa7e58dccf5c94b508b9378d316890a8fd86584572096fb2bc33"},"schema_version":"1.0","source":{"id":"1206.5023","kind":"arxiv","version":1}},"canonical_sha256":"6b1080bc41d9aed33590a46f097a4318666e7df070d674b5d789d99c89dae7a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b1080bc41d9aed33590a46f097a4318666e7df070d674b5d789d99c89dae7a9","first_computed_at":"2026-05-18T03:45:43.411176Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:45:43.411176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mitP2qbGNX3YWjDN85s1E2SuLaHEayc2I+XAGV0cNIihhyoAt0YGRQIOlDvl3WE2Sp/KS3sd/Of3QW4tPW/NAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:45:43.411845Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.5023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38e9e4c30fa702b6302a907dcc51eb3e434a6164dea2e473d1ecfdddd61ef452","sha256:b95b5baa03096c860c352c0f85812c5b06ba2b048bcf4720ddac8b92b86cf247"],"state_sha256":"86ebea91dd7080603a6c62ef4d7ff3953c49153df531a90a7ef90aa0cd54dc63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YmPqzLyz3incaCmGKu/BiRdfEskp6GDLb7a5IQCuVZAgdSImUEP2BOgAJaxW3fnRPj+P5K1QdbDAl8K4TrcrAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:03:06.743084Z","bundle_sha256":"ac4670872fc7a8f6a9c0e6cda8019eb92f7162c64a4416a145ad48d482e520a2"}}