{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:N45YHGHM45C5HVYQF2MIWEZWEO","short_pith_number":"pith:N45YHGHM","canonical_record":{"source":{"id":"1703.02427","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2017-03-07T15:13:07Z","cross_cats_sorted":[],"title_canon_sha256":"b6e00ff72e34b9f4a5434887d282c8cd79f49f3911afd67d862ab8cca74d08a2","abstract_canon_sha256":"7238af69959222abe6cb1e81de8d9cb17ca1d7c2753cae113b07b5d314ec1303"},"schema_version":"1.0"},"canonical_sha256":"6f3b8398ece745d3d7102e988b133623841f0dec19ffb3e0eb906fad5942a2f4","source":{"kind":"arxiv","id":"1703.02427","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.02427","created_at":"2026-05-18T00:46:58Z"},{"alias_kind":"arxiv_version","alias_value":"1703.02427v1","created_at":"2026-05-18T00:46:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.02427","created_at":"2026-05-18T00:46:58Z"},{"alias_kind":"pith_short_12","alias_value":"N45YHGHM45C5","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"N45YHGHM45C5HVYQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"N45YHGHM","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:N45YHGHM45C5HVYQF2MIWEZWEO","target":"record","payload":{"canonical_record":{"source":{"id":"1703.02427","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2017-03-07T15:13:07Z","cross_cats_sorted":[],"title_canon_sha256":"b6e00ff72e34b9f4a5434887d282c8cd79f49f3911afd67d862ab8cca74d08a2","abstract_canon_sha256":"7238af69959222abe6cb1e81de8d9cb17ca1d7c2753cae113b07b5d314ec1303"},"schema_version":"1.0"},"canonical_sha256":"6f3b8398ece745d3d7102e988b133623841f0dec19ffb3e0eb906fad5942a2f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:58.983818Z","signature_b64":"l/SV5/hWNwmALaDTOspT9wx2ax4DP9nEdJGKkjnT35f1gNGwiC5zvMuiidwA5k/N6oAhB3cv7evlJmhTXlQqCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f3b8398ece745d3d7102e988b133623841f0dec19ffb3e0eb906fad5942a2f4","last_reissued_at":"2026-05-18T00:46:58.983268Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:58.983268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.02427","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":"2026-05-18T00:46:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYm1n7Hz4Y2vgiZ3q+cqnVX75F07X5PrI86zyt5RJIyRGW8FghEyVBkfE02lTNi9UcEeHeRnlec55SmGRbWNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:09:16.340593Z"},"content_sha256":"e65026e48158b13d7e526cb231464f5e51aad07af843f8f8b2338ed458fe516c","schema_version":"1.0","event_id":"sha256:e65026e48158b13d7e526cb231464f5e51aad07af843f8f8b2338ed458fe516c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:N45YHGHM45C5HVYQF2MIWEZWEO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vortices and antivortices in two-dimensional ultracold Fermi gases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"G. Bighin, L. Salasnich","submitted_at":"2017-03-07T15:13:07Z","abstract_excerpt":"Vortices are commonly observed in the context of classical hydrodynamics: from whirlpools after stirring the coffee in a cup to a violent atmospheric phenomenon such as a tornado, all classical vortices are characterized by an arbitrary circulation value of the local velocity field. On the other hand the appearance of vortices with quantized circulation represents one of the fundamental signatures of macroscopic quantum phenomena. In two-dimensional superfluids quantized vortices play a key role in determining finite-temperature properties, as the superfluid phase and the normal state are sepa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.02427","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":"2026-05-18T00:46:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xyoVKxmw6fA/iwW8WvqglFniHCYraYhgN4vTI6fAZjNJKGLXRI4IDjxzl4dmMNGQty9iNXFozWGimFtcVQkiAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:09:16.341014Z"},"content_sha256":"3741842bc3d103f9ee6e93304df283face7cce44dfa97d1df2dda07e70e8061c","schema_version":"1.0","event_id":"sha256:3741842bc3d103f9ee6e93304df283face7cce44dfa97d1df2dda07e70e8061c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N45YHGHM45C5HVYQF2MIWEZWEO/bundle.json","state_url":"https://pith.science/pith/N45YHGHM45C5HVYQF2MIWEZWEO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N45YHGHM45C5HVYQF2MIWEZWEO/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":"2026-05-26T02:09:16Z","links":{"resolver":"https://pith.science/pith/N45YHGHM45C5HVYQF2MIWEZWEO","bundle":"https://pith.science/pith/N45YHGHM45C5HVYQF2MIWEZWEO/bundle.json","state":"https://pith.science/pith/N45YHGHM45C5HVYQF2MIWEZWEO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N45YHGHM45C5HVYQF2MIWEZWEO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:N45YHGHM45C5HVYQF2MIWEZWEO","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":"7238af69959222abe6cb1e81de8d9cb17ca1d7c2753cae113b07b5d314ec1303","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2017-03-07T15:13:07Z","title_canon_sha256":"b6e00ff72e34b9f4a5434887d282c8cd79f49f3911afd67d862ab8cca74d08a2"},"schema_version":"1.0","source":{"id":"1703.02427","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.02427","created_at":"2026-05-18T00:46:58Z"},{"alias_kind":"arxiv_version","alias_value":"1703.02427v1","created_at":"2026-05-18T00:46:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.02427","created_at":"2026-05-18T00:46:58Z"},{"alias_kind":"pith_short_12","alias_value":"N45YHGHM45C5","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"N45YHGHM45C5HVYQ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"N45YHGHM","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:3741842bc3d103f9ee6e93304df283face7cce44dfa97d1df2dda07e70e8061c","target":"graph","created_at":"2026-05-18T00:46:58Z","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":"Vortices are commonly observed in the context of classical hydrodynamics: from whirlpools after stirring the coffee in a cup to a violent atmospheric phenomenon such as a tornado, all classical vortices are characterized by an arbitrary circulation value of the local velocity field. On the other hand the appearance of vortices with quantized circulation represents one of the fundamental signatures of macroscopic quantum phenomena. In two-dimensional superfluids quantized vortices play a key role in determining finite-temperature properties, as the superfluid phase and the normal state are sepa","authors_text":"G. Bighin, L. Salasnich","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2017-03-07T15:13:07Z","title":"Vortices and antivortices in two-dimensional ultracold Fermi gases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.02427","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:e65026e48158b13d7e526cb231464f5e51aad07af843f8f8b2338ed458fe516c","target":"record","created_at":"2026-05-18T00:46:58Z","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":"7238af69959222abe6cb1e81de8d9cb17ca1d7c2753cae113b07b5d314ec1303","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2017-03-07T15:13:07Z","title_canon_sha256":"b6e00ff72e34b9f4a5434887d282c8cd79f49f3911afd67d862ab8cca74d08a2"},"schema_version":"1.0","source":{"id":"1703.02427","kind":"arxiv","version":1}},"canonical_sha256":"6f3b8398ece745d3d7102e988b133623841f0dec19ffb3e0eb906fad5942a2f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f3b8398ece745d3d7102e988b133623841f0dec19ffb3e0eb906fad5942a2f4","first_computed_at":"2026-05-18T00:46:58.983268Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:58.983268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l/SV5/hWNwmALaDTOspT9wx2ax4DP9nEdJGKkjnT35f1gNGwiC5zvMuiidwA5k/N6oAhB3cv7evlJmhTXlQqCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:58.983818Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.02427","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e65026e48158b13d7e526cb231464f5e51aad07af843f8f8b2338ed458fe516c","sha256:3741842bc3d103f9ee6e93304df283face7cce44dfa97d1df2dda07e70e8061c"],"state_sha256":"15e1d76260e536953cfa5e21561b07ad5782c0a9c74cf1f2ca31ed2292d44bb7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rfViL6NuJDlcIw6pv/5LSSNHmc58ylZTa+UxA+ivILTObZFck310hHivhhkXkbEkVv8ghusv7P6zGJUXbInXDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T02:09:16.343791Z","bundle_sha256":"0ba3b096baa975b8d27f87fc6eaaee1d98b4372da4a5df3ff0b4dde25efc88e1"}}