{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3SF4N24U5TTZDEZLOE4UXMS4C3","short_pith_number":"pith:3SF4N24U","canonical_record":{"source":{"id":"1901.02766","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-01-09T14:46:35Z","cross_cats_sorted":[],"title_canon_sha256":"bad7002bfdd803dce70f6982e849ebe100fe5fcbb4ac2703e95d387dadc41228","abstract_canon_sha256":"31431e442b47afdcee04886cfbc225a6f3f8ff25256d53f10ae526087cf442ba"},"schema_version":"1.0"},"canonical_sha256":"dc8bc6eb94ece791932b71394bb25c16d5f6c986795680c354063530445909a1","source":{"kind":"arxiv","id":"1901.02766","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.02766","created_at":"2026-05-17T23:51:05Z"},{"alias_kind":"arxiv_version","alias_value":"1901.02766v3","created_at":"2026-05-17T23:51:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.02766","created_at":"2026-05-17T23:51:05Z"},{"alias_kind":"pith_short_12","alias_value":"3SF4N24U5TTZ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"3SF4N24U5TTZDEZL","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"3SF4N24U","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3SF4N24U5TTZDEZLOE4UXMS4C3","target":"record","payload":{"canonical_record":{"source":{"id":"1901.02766","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-01-09T14:46:35Z","cross_cats_sorted":[],"title_canon_sha256":"bad7002bfdd803dce70f6982e849ebe100fe5fcbb4ac2703e95d387dadc41228","abstract_canon_sha256":"31431e442b47afdcee04886cfbc225a6f3f8ff25256d53f10ae526087cf442ba"},"schema_version":"1.0"},"canonical_sha256":"dc8bc6eb94ece791932b71394bb25c16d5f6c986795680c354063530445909a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:05.073632Z","signature_b64":"1chp5dK2HuBw5+orQ/2Phl87BltitG+S9qSrRaXJ29CeWWk/HtRIs51hEOCT222VF8ptJmz9VRXG0BJKWTe5Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc8bc6eb94ece791932b71394bb25c16d5f6c986795680c354063530445909a1","last_reissued_at":"2026-05-17T23:51:05.073142Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:05.073142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.02766","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:51:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hYRbiS6AnlWOEamQ7MeqskH2A2BekxN1kv1x0oE5aGK4HDFiEcDSJ+qxSiUGpyvOwgT6n1QcF6gIdaKAvB7yCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T06:12:25.350022Z"},"content_sha256":"e21fc50fb0a3b6e751d936a9663652cf9f40bbca22e46fb9701cb79deee0cc42","schema_version":"1.0","event_id":"sha256:e21fc50fb0a3b6e751d936a9663652cf9f40bbca22e46fb9701cb79deee0cc42"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3SF4N24U5TTZDEZLOE4UXMS4C3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polaron in a $p+ip$ Fermi topological superfluid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Fang Qin, Wei Yi, Xiaoling Cui","submitted_at":"2019-01-09T14:46:35Z","abstract_excerpt":"We study polaron excitations induced by an impurity interacting with a two-dimensional $p+ip$ Fermi superfluid. As the Fermi-Fermi pairing interaction is tuned, the background Fermi superfluid undergoes a topological phase transition. We show that such a transition is accompanied by a discontinuity in the second derivative of the polaron energy, regardless of the impurity-fermion interaction. We also identify a polaron to trimer crossover when the Fermi superfluid is in the strongly interacting, thus topologically trivial, regime. However, the trimer state is metastable against the molecular s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.02766","kind":"arxiv","version":3},"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":"2026-05-17T23:51:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"chaogytLyScfAX+znAkJaG4wzqQAgzRLgbhhcxCeOMK76tJyvj+3bWRgdedOFL3FePHWqOdl+/gjuwrDvPnEDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T06:12:25.350742Z"},"content_sha256":"adde6b40f924f9a37d5aa1212f3f1d0a6a8064c7ac95cbe7f96696cac6d50311","schema_version":"1.0","event_id":"sha256:adde6b40f924f9a37d5aa1212f3f1d0a6a8064c7ac95cbe7f96696cac6d50311"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3SF4N24U5TTZDEZLOE4UXMS4C3/bundle.json","state_url":"https://pith.science/pith/3SF4N24U5TTZDEZLOE4UXMS4C3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3SF4N24U5TTZDEZLOE4UXMS4C3/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":"2026-06-07T06:12:25Z","links":{"resolver":"https://pith.science/pith/3SF4N24U5TTZDEZLOE4UXMS4C3","bundle":"https://pith.science/pith/3SF4N24U5TTZDEZLOE4UXMS4C3/bundle.json","state":"https://pith.science/pith/3SF4N24U5TTZDEZLOE4UXMS4C3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3SF4N24U5TTZDEZLOE4UXMS4C3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3SF4N24U5TTZDEZLOE4UXMS4C3","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":"31431e442b47afdcee04886cfbc225a6f3f8ff25256d53f10ae526087cf442ba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-01-09T14:46:35Z","title_canon_sha256":"bad7002bfdd803dce70f6982e849ebe100fe5fcbb4ac2703e95d387dadc41228"},"schema_version":"1.0","source":{"id":"1901.02766","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.02766","created_at":"2026-05-17T23:51:05Z"},{"alias_kind":"arxiv_version","alias_value":"1901.02766v3","created_at":"2026-05-17T23:51:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.02766","created_at":"2026-05-17T23:51:05Z"},{"alias_kind":"pith_short_12","alias_value":"3SF4N24U5TTZ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"3SF4N24U5TTZDEZL","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"3SF4N24U","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:adde6b40f924f9a37d5aa1212f3f1d0a6a8064c7ac95cbe7f96696cac6d50311","target":"graph","created_at":"2026-05-17T23:51:05Z","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 polaron excitations induced by an impurity interacting with a two-dimensional $p+ip$ Fermi superfluid. As the Fermi-Fermi pairing interaction is tuned, the background Fermi superfluid undergoes a topological phase transition. We show that such a transition is accompanied by a discontinuity in the second derivative of the polaron energy, regardless of the impurity-fermion interaction. We also identify a polaron to trimer crossover when the Fermi superfluid is in the strongly interacting, thus topologically trivial, regime. However, the trimer state is metastable against the molecular s","authors_text":"Fang Qin, Wei Yi, Xiaoling Cui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-01-09T14:46:35Z","title":"Polaron in a $p+ip$ Fermi topological superfluid"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.02766","kind":"arxiv","version":3},"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:e21fc50fb0a3b6e751d936a9663652cf9f40bbca22e46fb9701cb79deee0cc42","target":"record","created_at":"2026-05-17T23:51:05Z","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":"31431e442b47afdcee04886cfbc225a6f3f8ff25256d53f10ae526087cf442ba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-01-09T14:46:35Z","title_canon_sha256":"bad7002bfdd803dce70f6982e849ebe100fe5fcbb4ac2703e95d387dadc41228"},"schema_version":"1.0","source":{"id":"1901.02766","kind":"arxiv","version":3}},"canonical_sha256":"dc8bc6eb94ece791932b71394bb25c16d5f6c986795680c354063530445909a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc8bc6eb94ece791932b71394bb25c16d5f6c986795680c354063530445909a1","first_computed_at":"2026-05-17T23:51:05.073142Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:05.073142Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1chp5dK2HuBw5+orQ/2Phl87BltitG+S9qSrRaXJ29CeWWk/HtRIs51hEOCT222VF8ptJmz9VRXG0BJKWTe5Dw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:05.073632Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.02766","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e21fc50fb0a3b6e751d936a9663652cf9f40bbca22e46fb9701cb79deee0cc42","sha256:adde6b40f924f9a37d5aa1212f3f1d0a6a8064c7ac95cbe7f96696cac6d50311"],"state_sha256":"9d3ec70723439c78f1927dbf0afdea8f7042f99f65ddfdd90d9fae841539f1f2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W0DaAF36AcmA9kJ3cF0s2E0SC2kWVrtjOAFulHHvEmZHKaLgfCb/WmqyPTKBdie6dqJGcpxJ9nndsBDsSzkjCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T06:12:25.354041Z","bundle_sha256":"345fd407afcd0cc87984e1ab5b7aedf46c7d34add06bea8b0971ef55d706cdcd"}}