{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:SPTIHFKXZN4TE2E5XW5C7KKMXW","short_pith_number":"pith:SPTIHFKX","canonical_record":{"source":{"id":"2606.03438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-06-02T10:21:15Z","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"title_canon_sha256":"7799ee6d6ae3062499edd4bffa4e710bcca9431ff6e8e497c6e63d11224ee21e","abstract_canon_sha256":"631688e25d330b62cbb7a981a47d0ba05a8e8be412e37b0dcd874570414717e7"},"schema_version":"1.0"},"canonical_sha256":"93e6839557cb7932689dbdba2fa94cbd887a473037b9dc2cddf5afaa6257a694","source":{"kind":"arxiv","id":"2606.03438","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03438","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03438v1","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03438","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"pith_short_12","alias_value":"SPTIHFKXZN4T","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"pith_short_16","alias_value":"SPTIHFKXZN4TE2E5","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"pith_short_8","alias_value":"SPTIHFKX","created_at":"2026-06-03T01:05:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:SPTIHFKXZN4TE2E5XW5C7KKMXW","target":"record","payload":{"canonical_record":{"source":{"id":"2606.03438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-06-02T10:21:15Z","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"title_canon_sha256":"7799ee6d6ae3062499edd4bffa4e710bcca9431ff6e8e497c6e63d11224ee21e","abstract_canon_sha256":"631688e25d330b62cbb7a981a47d0ba05a8e8be412e37b0dcd874570414717e7"},"schema_version":"1.0"},"canonical_sha256":"93e6839557cb7932689dbdba2fa94cbd887a473037b9dc2cddf5afaa6257a694","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T01:05:57.784278Z","signature_b64":"5MhQPKBYmy98z1GABdyOAY5nDtzYqX6/nTiGrPB4wRfBPUs3fxkiNlhPFOwvx4cDEbWimvFBYSLaOEolmnm9Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"93e6839557cb7932689dbdba2fa94cbd887a473037b9dc2cddf5afaa6257a694","last_reissued_at":"2026-06-03T01:05:57.783933Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T01:05:57.783933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.03438","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":"2026-06-03T01:05:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wBC/vCT/GxX1WWHZHOlOU/d1OerRhE/ZiccrtnCb1fY1VA+tFvknpdMNgr7laaEHDDrcTiwZYVTn3pr1AAMTAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T08:48:09.552583Z"},"content_sha256":"ad876bff1a2bd005c0b211311c19b259495539d2aaa132b2590923b9d7e6a674","schema_version":"1.0","event_id":"sha256:ad876bff1a2bd005c0b211311c19b259495539d2aaa132b2590923b9d7e6a674"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:SPTIHFKXZN4TE2E5XW5C7KKMXW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Populating topologically protected edge states of a Chern insulator with the cold-atom elevator scheme and measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Anne E. B. Nielsen, Toke Marstrand Pontoppidan Lindhard","submitted_at":"2026-06-02T10:21:15Z","abstract_excerpt":"Two-dimensional Chern insulators support topologically protected, chiral edge currents, and these can be detected in experiments with ultracold atoms in optical lattices. It has previously been shown that one can populate a selected group of edge states of a Chern insulator by transferring particles from a reservoir. Here, we numerically investigate the effect of performing an instantaneous, projective measurement on the reservoir before the reservoir is discarded. In this way, the final state of the system is pure and described by a wavefunction. We also show that quite likely measurement out"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03438","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/2606.03438/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":"2026-06-03T01:05:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R9H1wyKzC2VJfSv+EmPZ+ZDUayYF/xfzGyw/l1Oc9jYYKzsGVEDIj+cdsG5QEJs/nBPAi7cZaR4Ut5Jm5jR4Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T08:48:09.553405Z"},"content_sha256":"7eaf472ca5315e25019958cd0ebe6262853cf3bde6ff1e7fde3988431773357f","schema_version":"1.0","event_id":"sha256:7eaf472ca5315e25019958cd0ebe6262853cf3bde6ff1e7fde3988431773357f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW/bundle.json","state_url":"https://pith.science/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW/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":"2026-08-10T08:48:09Z","links":{"resolver":"https://pith.science/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW","bundle":"https://pith.science/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW/bundle.json","state":"https://pith.science/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SPTIHFKXZN4TE2E5XW5C7KKMXW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:SPTIHFKXZN4TE2E5XW5C7KKMXW","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":"631688e25d330b62cbb7a981a47d0ba05a8e8be412e37b0dcd874570414717e7","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-06-02T10:21:15Z","title_canon_sha256":"7799ee6d6ae3062499edd4bffa4e710bcca9431ff6e8e497c6e63d11224ee21e"},"schema_version":"1.0","source":{"id":"2606.03438","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03438","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03438v1","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03438","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"pith_short_12","alias_value":"SPTIHFKXZN4T","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"pith_short_16","alias_value":"SPTIHFKXZN4TE2E5","created_at":"2026-06-03T01:05:57Z"},{"alias_kind":"pith_short_8","alias_value":"SPTIHFKX","created_at":"2026-06-03T01:05:57Z"}],"graph_snapshots":[{"event_id":"sha256:7eaf472ca5315e25019958cd0ebe6262853cf3bde6ff1e7fde3988431773357f","target":"graph","created_at":"2026-06-03T01:05:57Z","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/2606.03438/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Two-dimensional Chern insulators support topologically protected, chiral edge currents, and these can be detected in experiments with ultracold atoms in optical lattices. It has previously been shown that one can populate a selected group of edge states of a Chern insulator by transferring particles from a reservoir. Here, we numerically investigate the effect of performing an instantaneous, projective measurement on the reservoir before the reservoir is discarded. In this way, the final state of the system is pure and described by a wavefunction. We also show that quite likely measurement out","authors_text":"Anne E. B. Nielsen, Toke Marstrand Pontoppidan Lindhard","cross_cats":["cond-mat.mes-hall","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-06-02T10:21:15Z","title":"Populating topologically protected edge states of a Chern insulator with the cold-atom elevator scheme and measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03438","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:ad876bff1a2bd005c0b211311c19b259495539d2aaa132b2590923b9d7e6a674","target":"record","created_at":"2026-06-03T01:05:57Z","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":"631688e25d330b62cbb7a981a47d0ba05a8e8be412e37b0dcd874570414717e7","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2026-06-02T10:21:15Z","title_canon_sha256":"7799ee6d6ae3062499edd4bffa4e710bcca9431ff6e8e497c6e63d11224ee21e"},"schema_version":"1.0","source":{"id":"2606.03438","kind":"arxiv","version":1}},"canonical_sha256":"93e6839557cb7932689dbdba2fa94cbd887a473037b9dc2cddf5afaa6257a694","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93e6839557cb7932689dbdba2fa94cbd887a473037b9dc2cddf5afaa6257a694","first_computed_at":"2026-06-03T01:05:57.783933Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T01:05:57.783933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5MhQPKBYmy98z1GABdyOAY5nDtzYqX6/nTiGrPB4wRfBPUs3fxkiNlhPFOwvx4cDEbWimvFBYSLaOEolmnm9Bw==","signature_status":"signed_v1","signed_at":"2026-06-03T01:05:57.784278Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.03438","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad876bff1a2bd005c0b211311c19b259495539d2aaa132b2590923b9d7e6a674","sha256:7eaf472ca5315e25019958cd0ebe6262853cf3bde6ff1e7fde3988431773357f"],"state_sha256":"4a5ac08c96dd629434827d94dd229f700d624451cedf0a447e68bf235a945ca6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9s+wIftbh0qG79X4SxNWX1S8wR04nq/4BhPzaaPGMzDrInikOmkpCZXFEuaa4w1Sf8/nruZ3QXWhCZY4BeGWCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T08:48:09.561962Z","bundle_sha256":"b2a0bc44a16b4af0810a4eebd787b5b006e54b27a5b015343e5c3d6e2c4ead07"}}