{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:D7P3KZ4CMH65IVVZCUF6CXYX54","short_pith_number":"pith:D7P3KZ4C","canonical_record":{"source":{"id":"2103.06826","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-03-11T17:52:17Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"84256a6970e770b1e663066966a955ea89ef2f7a8215cf46f95e5863abe1d492","abstract_canon_sha256":"e3cd3b9be717c5b27da6e2cfed6bec13544a963988bfb7110ae52db7e5d6a13e"},"schema_version":"1.0"},"canonical_sha256":"1fdfb5678261fdd456b9150be15f17ef057c85e5f4cc6464b4333fda9fa14b86","source":{"kind":"arxiv","id":"2103.06826","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.06826","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"arxiv_version","alias_value":"2103.06826v1","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.06826","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"pith_short_12","alias_value":"D7P3KZ4CMH65","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"pith_short_16","alias_value":"D7P3KZ4CMH65IVVZ","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"pith_short_8","alias_value":"D7P3KZ4C","created_at":"2026-07-05T02:51:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:D7P3KZ4CMH65IVVZCUF6CXYX54","target":"record","payload":{"canonical_record":{"source":{"id":"2103.06826","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-03-11T17:52:17Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"84256a6970e770b1e663066966a955ea89ef2f7a8215cf46f95e5863abe1d492","abstract_canon_sha256":"e3cd3b9be717c5b27da6e2cfed6bec13544a963988bfb7110ae52db7e5d6a13e"},"schema_version":"1.0"},"canonical_sha256":"1fdfb5678261fdd456b9150be15f17ef057c85e5f4cc6464b4333fda9fa14b86","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:51:19.848937Z","signature_b64":"0Zv33HlT5oHvWD+Tnd8TwM8Ib/fXoL1/2TJSAFy+rjuEs3mPJ7UwFe52el2zhSMgJZVSKF1CTqRT4rv/Z/KnCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1fdfb5678261fdd456b9150be15f17ef057c85e5f4cc6464b4333fda9fa14b86","last_reissued_at":"2026-07-05T02:51:19.848497Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:51:19.848497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.06826","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":"2026-07-05T02:51:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0W5Z4zJCCRNxTjozWW6sY4RYBn0AWB4gZf9hCTDwu2ZKACaN28c8/NHzCTyU1L46C5LOiiOhAmmfUxEk2m2NAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T13:18:18.306818Z"},"content_sha256":"ba62a7d189891bc1a9aacac8dc97d2c9642b90d161aeeb7cb16b625ecc91b398","schema_version":"1.0","event_id":"sha256:ba62a7d189891bc1a9aacac8dc97d2c9642b90d161aeeb7cb16b625ecc91b398"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:D7P3KZ4CMH65IVVZCUF6CXYX54","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-topological fractional fermion number in the Jackiw-Rossi model","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"hep-th","authors_text":"Alberto Alonso-Izquierdo, Caio Almeida, Dmitri Vassilevich, Juan Mateos Guilarte, Rodrigo Fresneda","submitted_at":"2021-03-11T17:52:17Z","abstract_excerpt":"We compute the vacuum fermion current in $(2+1)$ dimensional Jackiw-Rossi model by using the $1/m$ expansion. The current is expressed through a weighted $\\eta$-function with a matrix weight. In the presence of such a weight, the usual proof of topological nature of $\\eta(0)$ is not longer applicable. Direct computations confirm the following surprising result: the fermion number induced by vortices in the Jackiw-Rossi model is \\textit{not} topological."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.06826","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.06826/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:51:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ABoUOWW8eyv6wmRzhvrmntrbteFbAvH8CHFPWvEeb9vM2AJh+M1XE2mtZRHCPn9yF3i8g/6i5Xta7pFVL4nECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T13:18:18.307289Z"},"content_sha256":"36c0ce396f0425fcd2bff0c4f7390d936c0235830cb8f1b932b89ccd787c66e2","schema_version":"1.0","event_id":"sha256:36c0ce396f0425fcd2bff0c4f7390d936c0235830cb8f1b932b89ccd787c66e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D7P3KZ4CMH65IVVZCUF6CXYX54/bundle.json","state_url":"https://pith.science/pith/D7P3KZ4CMH65IVVZCUF6CXYX54/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D7P3KZ4CMH65IVVZCUF6CXYX54/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":"2026-08-04T13:18:18Z","links":{"resolver":"https://pith.science/pith/D7P3KZ4CMH65IVVZCUF6CXYX54","bundle":"https://pith.science/pith/D7P3KZ4CMH65IVVZCUF6CXYX54/bundle.json","state":"https://pith.science/pith/D7P3KZ4CMH65IVVZCUF6CXYX54/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D7P3KZ4CMH65IVVZCUF6CXYX54/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:D7P3KZ4CMH65IVVZCUF6CXYX54","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":"e3cd3b9be717c5b27da6e2cfed6bec13544a963988bfb7110ae52db7e5d6a13e","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-03-11T17:52:17Z","title_canon_sha256":"84256a6970e770b1e663066966a955ea89ef2f7a8215cf46f95e5863abe1d492"},"schema_version":"1.0","source":{"id":"2103.06826","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.06826","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"arxiv_version","alias_value":"2103.06826v1","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.06826","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"pith_short_12","alias_value":"D7P3KZ4CMH65","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"pith_short_16","alias_value":"D7P3KZ4CMH65IVVZ","created_at":"2026-07-05T02:51:19Z"},{"alias_kind":"pith_short_8","alias_value":"D7P3KZ4C","created_at":"2026-07-05T02:51:19Z"}],"graph_snapshots":[{"event_id":"sha256:36c0ce396f0425fcd2bff0c4f7390d936c0235830cb8f1b932b89ccd787c66e2","target":"graph","created_at":"2026-07-05T02:51:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2103.06826/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We compute the vacuum fermion current in $(2+1)$ dimensional Jackiw-Rossi model by using the $1/m$ expansion. The current is expressed through a weighted $\\eta$-function with a matrix weight. In the presence of such a weight, the usual proof of topological nature of $\\eta(0)$ is not longer applicable. Direct computations confirm the following surprising result: the fermion number induced by vortices in the Jackiw-Rossi model is \\textit{not} topological.","authors_text":"Alberto Alonso-Izquierdo, Caio Almeida, Dmitri Vassilevich, Juan Mateos Guilarte, Rodrigo Fresneda","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-03-11T17:52:17Z","title":"Non-topological fractional fermion number in the Jackiw-Rossi model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.06826","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:ba62a7d189891bc1a9aacac8dc97d2c9642b90d161aeeb7cb16b625ecc91b398","target":"record","created_at":"2026-07-05T02:51:19Z","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":"e3cd3b9be717c5b27da6e2cfed6bec13544a963988bfb7110ae52db7e5d6a13e","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2021-03-11T17:52:17Z","title_canon_sha256":"84256a6970e770b1e663066966a955ea89ef2f7a8215cf46f95e5863abe1d492"},"schema_version":"1.0","source":{"id":"2103.06826","kind":"arxiv","version":1}},"canonical_sha256":"1fdfb5678261fdd456b9150be15f17ef057c85e5f4cc6464b4333fda9fa14b86","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1fdfb5678261fdd456b9150be15f17ef057c85e5f4cc6464b4333fda9fa14b86","first_computed_at":"2026-07-05T02:51:19.848497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:51:19.848497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0Zv33HlT5oHvWD+Tnd8TwM8Ib/fXoL1/2TJSAFy+rjuEs3mPJ7UwFe52el2zhSMgJZVSKF1CTqRT4rv/Z/KnCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:51:19.848937Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.06826","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ba62a7d189891bc1a9aacac8dc97d2c9642b90d161aeeb7cb16b625ecc91b398","sha256:36c0ce396f0425fcd2bff0c4f7390d936c0235830cb8f1b932b89ccd787c66e2"],"state_sha256":"087c6f57fc6d5d9e5315a4264e3da8688b5fd5328999538a956b6e35f0e16b94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z682RUsrfWdcfGoxa34g5AUPxeHGWTz/uoQktA/Cy7mLDtsnSz6MFqUWaJVLDnERuFDBwGd+/8s4s4k+BwsyAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T13:18:18.311721Z","bundle_sha256":"0ec67c70572e4c9d43e4ed275c153803b052f692765900e4f283c4ceca4cec68"}}