{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:6CHZB42AQ7IJKDQLYUYIJWPJHO","short_pith_number":"pith:6CHZB42A","canonical_record":{"source":{"id":"cond-mat/0612114","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-12-05T12:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"1e9c6f43edecb817b2b0dcaa602fb32efb00f82a095480ec84b50262ae2c02a7","abstract_canon_sha256":"838349daaf54e0611ca5262b4b4dfc2137df2d1a178dec9a163785afd12ca9e9"},"schema_version":"1.0"},"canonical_sha256":"f08f90f34087d0950e0bc53084d9e93b863335ff63b90734e9660e22a4974f75","source":{"kind":"arxiv","id":"cond-mat/0612114","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0612114","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612114v1","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612114","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"6CHZB42AQ7IJ","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"6CHZB42AQ7IJKDQL","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"6CHZB42A","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:6CHZB42AQ7IJKDQLYUYIJWPJHO","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0612114","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-12-05T12:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"1e9c6f43edecb817b2b0dcaa602fb32efb00f82a095480ec84b50262ae2c02a7","abstract_canon_sha256":"838349daaf54e0611ca5262b4b4dfc2137df2d1a178dec9a163785afd12ca9e9"},"schema_version":"1.0"},"canonical_sha256":"f08f90f34087d0950e0bc53084d9e93b863335ff63b90734e9660e22a4974f75","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:39.110395Z","signature_b64":"ZKR+SNVbvnSeH+tMORCjjFojBPczQ7XDSaS1+MwQI0fQe7W/ijNty8j1+GZDdAafzhxLgavNG8cvWeLR05RtBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f08f90f34087d0950e0bc53084d9e93b863335ff63b90734e9660e22a4974f75","last_reissued_at":"2026-05-18T01:39:39.109737Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:39.109737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0612114","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":"2026-05-18T01:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vGrCJyx37EGhzCkMx9aXjUm8tm7tzvsvzh3O01AQNG9Avkn1qwKaMPvXYnebTZBiuHd2hGPYftRnuM6rx0CsAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T15:03:33.474292Z"},"content_sha256":"fc761d97aebacb9955192af0bb6c89a8b5a59fcfc6c13209b5fadeb8db810a78","schema_version":"1.0","event_id":"sha256:fc761d97aebacb9955192af0bb6c89a8b5a59fcfc6c13209b5fadeb8db810a78"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:6CHZB42AQ7IJKDQLYUYIJWPJHO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bogoliubov-Cerenkov radiation in a Bose-Einstein condensate flowing against an obstacle","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"A. Smerzi, I. Carusotto, L. A. Collins, S. X. Hu","submitted_at":"2006-12-05T12:37:00Z","abstract_excerpt":"We study the density modulation that appears in a Bose-Einstein condensate flowing with supersonic velocity against an obstacle. The experimental density profiles observed at JILA are reproduced by a numerical integration of the Gross-Pitaevskii equation and then interpreted in terms of Cerenkov emission of Bogoliubov excitations by the defect. The phonon and the single-particle regions of the Bogoliubov spectrum are respectively responsible for a conical wavefront and a fan-shaped series of precursors."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612114","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":"2026-05-18T01:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1yVWYJgkOJuBzCM9oMlWQMhL4u55ZCuQkBMXFyGr4teMLCNGGT5Wmial8UPHhvhx7tjW0c452nmDanHPAextDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T15:03:33.474658Z"},"content_sha256":"19e94acd525af28bd362f61fb03f56602e6831eeae6cfb432d765551751ccb3b","schema_version":"1.0","event_id":"sha256:19e94acd525af28bd362f61fb03f56602e6831eeae6cfb432d765551751ccb3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO/bundle.json","state_url":"https://pith.science/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO/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":"2026-06-05T15:03:33Z","links":{"resolver":"https://pith.science/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO","bundle":"https://pith.science/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO/bundle.json","state":"https://pith.science/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6CHZB42AQ7IJKDQLYUYIJWPJHO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:6CHZB42AQ7IJKDQLYUYIJWPJHO","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":"838349daaf54e0611ca5262b4b4dfc2137df2d1a178dec9a163785afd12ca9e9","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-12-05T12:37:00Z","title_canon_sha256":"1e9c6f43edecb817b2b0dcaa602fb32efb00f82a095480ec84b50262ae2c02a7"},"schema_version":"1.0","source":{"id":"cond-mat/0612114","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0612114","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0612114v1","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0612114","created_at":"2026-05-18T01:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"6CHZB42AQ7IJ","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"6CHZB42AQ7IJKDQL","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"6CHZB42A","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:19e94acd525af28bd362f61fb03f56602e6831eeae6cfb432d765551751ccb3b","target":"graph","created_at":"2026-05-18T01:39:39Z","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 density modulation that appears in a Bose-Einstein condensate flowing with supersonic velocity against an obstacle. The experimental density profiles observed at JILA are reproduced by a numerical integration of the Gross-Pitaevskii equation and then interpreted in terms of Cerenkov emission of Bogoliubov excitations by the defect. The phonon and the single-particle regions of the Bogoliubov spectrum are respectively responsible for a conical wavefront and a fan-shaped series of precursors.","authors_text":"A. Smerzi, I. Carusotto, L. A. Collins, S. X. Hu","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2006-12-05T12:37:00Z","title":"Bogoliubov-Cerenkov radiation in a Bose-Einstein condensate flowing against an obstacle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0612114","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:fc761d97aebacb9955192af0bb6c89a8b5a59fcfc6c13209b5fadeb8db810a78","target":"record","created_at":"2026-05-18T01:39:39Z","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":"838349daaf54e0611ca5262b4b4dfc2137df2d1a178dec9a163785afd12ca9e9","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2006-12-05T12:37:00Z","title_canon_sha256":"1e9c6f43edecb817b2b0dcaa602fb32efb00f82a095480ec84b50262ae2c02a7"},"schema_version":"1.0","source":{"id":"cond-mat/0612114","kind":"arxiv","version":1}},"canonical_sha256":"f08f90f34087d0950e0bc53084d9e93b863335ff63b90734e9660e22a4974f75","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f08f90f34087d0950e0bc53084d9e93b863335ff63b90734e9660e22a4974f75","first_computed_at":"2026-05-18T01:39:39.109737Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:39.109737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZKR+SNVbvnSeH+tMORCjjFojBPczQ7XDSaS1+MwQI0fQe7W/ijNty8j1+GZDdAafzhxLgavNG8cvWeLR05RtBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:39.110395Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0612114","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc761d97aebacb9955192af0bb6c89a8b5a59fcfc6c13209b5fadeb8db810a78","sha256:19e94acd525af28bd362f61fb03f56602e6831eeae6cfb432d765551751ccb3b"],"state_sha256":"1aae3febb28e0d64639495863c5eaff611c33007eac7f83920a8124246d3b26f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yDRG9tHCyguvhUwfe3ycQ0BTdnxbnaHz12G6patVrjKDwAddH/ZwF847+ZVYd5aWEb01kIYOJEkSLYxkMMvWBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T15:03:33.476547Z","bundle_sha256":"42e6d5472cb9fa9d34781a1c33618c2cd4b9753f787cbf29a4cba57cfe026679"}}