{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:Y7TAR5BYNML6CFHPGFX264WKKA","short_pith_number":"pith:Y7TAR5BY","canonical_record":{"source":{"id":"1803.11494","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-03-30T14:52:00Z","cross_cats_sorted":[],"title_canon_sha256":"844f5d100baef6150207ddf2cc69abf62a2d9badbacb036e8a1329883b4c51ab","abstract_canon_sha256":"c581c64932c70978aced6654f0b26784f51de707e385b1d54718d5456cc0d821"},"schema_version":"1.0"},"canonical_sha256":"c7e608f4386b17e114ef316faf72ca503a1b9360ebdfd987cfcd91c406568338","source":{"kind":"arxiv","id":"1803.11494","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.11494","created_at":"2026-05-17T23:57:10Z"},{"alias_kind":"arxiv_version","alias_value":"1803.11494v2","created_at":"2026-05-17T23:57:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.11494","created_at":"2026-05-17T23:57:10Z"},{"alias_kind":"pith_short_12","alias_value":"Y7TAR5BYNML6","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"Y7TAR5BYNML6CFHP","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"Y7TAR5BY","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:Y7TAR5BYNML6CFHPGFX264WKKA","target":"record","payload":{"canonical_record":{"source":{"id":"1803.11494","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-03-30T14:52:00Z","cross_cats_sorted":[],"title_canon_sha256":"844f5d100baef6150207ddf2cc69abf62a2d9badbacb036e8a1329883b4c51ab","abstract_canon_sha256":"c581c64932c70978aced6654f0b26784f51de707e385b1d54718d5456cc0d821"},"schema_version":"1.0"},"canonical_sha256":"c7e608f4386b17e114ef316faf72ca503a1b9360ebdfd987cfcd91c406568338","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:10.424707Z","signature_b64":"TeLEoLDF8NCMSXXU6NNMPFoI9ewptm2tlbY/wG6+4+74CuKguK4Bw520eAwMmQiFECjFPdChyHZziJVcGqdmAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c7e608f4386b17e114ef316faf72ca503a1b9360ebdfd987cfcd91c406568338","last_reissued_at":"2026-05-17T23:57:10.424095Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:10.424095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.11494","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:57:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0U2LHFnhE/+IScDy0aSBYqYrzEsbNVA0O/om31Netf/9lpAHOYnIK4u2WfRyfp+qNq4pDFazQ3B38jD2fv52CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:45:21.521518Z"},"content_sha256":"646d34eaa519e9ffdf695fccb5fb28b1d1baf7006ca1cac58a19fe80dd611758","schema_version":"1.0","event_id":"sha256:646d34eaa519e9ffdf695fccb5fb28b1d1baf7006ca1cac58a19fe80dd611758"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:Y7TAR5BYNML6CFHPGFX264WKKA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transition from supersonic to subsonic waves in superfluid Fermi gases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Hadrien Kurkjian, Jacques Tempere, Senne Van Loon, Wout Van Alphen","submitted_at":"2018-03-30T14:52:00Z","abstract_excerpt":"We study the propagation of dispersive waves in superfluid Fermi gases in the BEC-BCS crossover. Unlike in other superfluid systems, where dispersive waves have already been studied and observed, Fermi gases can exhibit a subsonic dispersion relation for which the dispersive wave pattern appears at the tail of the wave front. We show that this property can be used to distinguish between a subsonic and a supersonic dispersion relation at unitarity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.11494","kind":"arxiv","version":2},"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":"2026-05-17T23:57:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PccfUKcmTco+78GIydVii7D0wmjQcxqfzu6oeJX0i/bofOlV/IxvdxQXU6NEBzdeOOaIUJAFuZd85vPUV8ORCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:45:21.522200Z"},"content_sha256":"e9eb8f94a2ef9af8fa32dd4512b8ccc59a2a8e12822100eda0a59e14eb5a3fac","schema_version":"1.0","event_id":"sha256:e9eb8f94a2ef9af8fa32dd4512b8ccc59a2a8e12822100eda0a59e14eb5a3fac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y7TAR5BYNML6CFHPGFX264WKKA/bundle.json","state_url":"https://pith.science/pith/Y7TAR5BYNML6CFHPGFX264WKKA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y7TAR5BYNML6CFHPGFX264WKKA/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":"2026-05-18T19:45:21Z","links":{"resolver":"https://pith.science/pith/Y7TAR5BYNML6CFHPGFX264WKKA","bundle":"https://pith.science/pith/Y7TAR5BYNML6CFHPGFX264WKKA/bundle.json","state":"https://pith.science/pith/Y7TAR5BYNML6CFHPGFX264WKKA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y7TAR5BYNML6CFHPGFX264WKKA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:Y7TAR5BYNML6CFHPGFX264WKKA","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":"c581c64932c70978aced6654f0b26784f51de707e385b1d54718d5456cc0d821","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-03-30T14:52:00Z","title_canon_sha256":"844f5d100baef6150207ddf2cc69abf62a2d9badbacb036e8a1329883b4c51ab"},"schema_version":"1.0","source":{"id":"1803.11494","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.11494","created_at":"2026-05-17T23:57:10Z"},{"alias_kind":"arxiv_version","alias_value":"1803.11494v2","created_at":"2026-05-17T23:57:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.11494","created_at":"2026-05-17T23:57:10Z"},{"alias_kind":"pith_short_12","alias_value":"Y7TAR5BYNML6","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"Y7TAR5BYNML6CFHP","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"Y7TAR5BY","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:e9eb8f94a2ef9af8fa32dd4512b8ccc59a2a8e12822100eda0a59e14eb5a3fac","target":"graph","created_at":"2026-05-17T23:57:10Z","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 study the propagation of dispersive waves in superfluid Fermi gases in the BEC-BCS crossover. Unlike in other superfluid systems, where dispersive waves have already been studied and observed, Fermi gases can exhibit a subsonic dispersion relation for which the dispersive wave pattern appears at the tail of the wave front. We show that this property can be used to distinguish between a subsonic and a supersonic dispersion relation at unitarity.","authors_text":"Hadrien Kurkjian, Jacques Tempere, Senne Van Loon, Wout Van Alphen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-03-30T14:52:00Z","title":"Transition from supersonic to subsonic waves in superfluid Fermi gases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.11494","kind":"arxiv","version":2},"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":"sha256:646d34eaa519e9ffdf695fccb5fb28b1d1baf7006ca1cac58a19fe80dd611758","target":"record","created_at":"2026-05-17T23:57:10Z","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":"c581c64932c70978aced6654f0b26784f51de707e385b1d54718d5456cc0d821","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-03-30T14:52:00Z","title_canon_sha256":"844f5d100baef6150207ddf2cc69abf62a2d9badbacb036e8a1329883b4c51ab"},"schema_version":"1.0","source":{"id":"1803.11494","kind":"arxiv","version":2}},"canonical_sha256":"c7e608f4386b17e114ef316faf72ca503a1b9360ebdfd987cfcd91c406568338","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7e608f4386b17e114ef316faf72ca503a1b9360ebdfd987cfcd91c406568338","first_computed_at":"2026-05-17T23:57:10.424095Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:57:10.424095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TeLEoLDF8NCMSXXU6NNMPFoI9ewptm2tlbY/wG6+4+74CuKguK4Bw520eAwMmQiFECjFPdChyHZziJVcGqdmAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:57:10.424707Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.11494","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:646d34eaa519e9ffdf695fccb5fb28b1d1baf7006ca1cac58a19fe80dd611758","sha256:e9eb8f94a2ef9af8fa32dd4512b8ccc59a2a8e12822100eda0a59e14eb5a3fac"],"state_sha256":"56d373383f7c5c87973d907ce23d0a0797cbbb3ac08966e4340c6887cc24131e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zqtr/Mx+jBnSdbqnELjGvDD4Ro5o/AJ2+8wCPqTxgBkztbBi9D6N4u2oUOSSNVM4wgPNChrzmRucv5C0zxAGDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T19:45:21.524408Z","bundle_sha256":"b39b9858a53ddc1585757cabac1840fc45bc7369ad695b758e7fe5258f704d1b"}}