{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:RYIQ5OPBSPKU7JCZ4TL6JYEFJS","short_pith_number":"pith:RYIQ5OPB","canonical_record":{"source":{"id":"1709.04211","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2017-09-13T09:35:48Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"d8396e8e6c84429bc16632146c08b9a620eccfe45cb082d1a399ea21b7f50b7f","abstract_canon_sha256":"6e4d0751dc54f2426820ba67c9b62da5455f88814d7f43b21dfdbfbbc91fe500"},"schema_version":"1.0"},"canonical_sha256":"8e110eb9e193d54fa459e4d7e4e0854c9cafb9c3897ec44a8c78be3c026df5d1","source":{"kind":"arxiv","id":"1709.04211","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04211","created_at":"2026-05-18T00:15:42Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04211v2","created_at":"2026-05-18T00:15:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04211","created_at":"2026-05-18T00:15:42Z"},{"alias_kind":"pith_short_12","alias_value":"RYIQ5OPBSPKU","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"RYIQ5OPBSPKU7JCZ","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"RYIQ5OPB","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:RYIQ5OPBSPKU7JCZ4TL6JYEFJS","target":"record","payload":{"canonical_record":{"source":{"id":"1709.04211","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2017-09-13T09:35:48Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"d8396e8e6c84429bc16632146c08b9a620eccfe45cb082d1a399ea21b7f50b7f","abstract_canon_sha256":"6e4d0751dc54f2426820ba67c9b62da5455f88814d7f43b21dfdbfbbc91fe500"},"schema_version":"1.0"},"canonical_sha256":"8e110eb9e193d54fa459e4d7e4e0854c9cafb9c3897ec44a8c78be3c026df5d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:42.073065Z","signature_b64":"CdN7sYfG1i0EzNa+cNl4JtsArjjTVl+CiySY1JSaIaE0g7DFPX/h6TSuSI6wKzt/aFHuEMVUrvYivzfoLXbUAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e110eb9e193d54fa459e4d7e4e0854c9cafb9c3897ec44a8c78be3c026df5d1","last_reissued_at":"2026-05-18T00:15:42.072530Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:42.072530Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.04211","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:15:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wYqNc1H+oU1K2pVlikSBuYMrOx1V3n3jBwGSwolPHUICrrEvTsvckSXgvelXgCCFNvQb0No5s5LB7H9lFtyMAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:47:15.258999Z"},"content_sha256":"fb4c47aebdd788d0cc8b936613cf994a3ded3f0ca13ea1a7fd1f4f43ff9402ac","schema_version":"1.0","event_id":"sha256:fb4c47aebdd788d0cc8b936613cf994a3ded3f0ca13ea1a7fd1f4f43ff9402ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:RYIQ5OPBSPKU7JCZ4TL6JYEFJS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transition from nodal loop to nodal chain phase in a periodically modulated optical lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.other","authors_text":"Chuanhao Yin, Linhu Li, Shu Chen","submitted_at":"2017-09-13T09:35:48Z","abstract_excerpt":"We propose to study the transition from a nodal loop to nodal chain phase in a tunable two-dimensional $\\pi$-flux lattice with periodical modulation potential. The Hamiltonian describes a periodically modulated optical lattice system under artificial magnetic fluxes and the tunable modulation phase factor provides additionally an artificial dimension of external parameter space. We demonstrate that this lattice system is able to describe a semimetal with either nodal loop or nodal chain Fermi surface in the extended three-dimensional Brillouin zone. By changing the strength of modulation poten"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04211","kind":"arxiv","version":2},"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":"2026-05-18T00:15:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n8xDrmnE5UOqwhl0guoEsM1z4cbxq7BsKZfcwDzWQwaKUsIxv/dGf7Bs1XeOo9ETuvrIp8vq0VB9BcOmv9OcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:47:15.259646Z"},"content_sha256":"db06646dbfc331c38a05fd99b075d04fc5ef6f71418c622a1cf839870612205f","schema_version":"1.0","event_id":"sha256:db06646dbfc331c38a05fd99b075d04fc5ef6f71418c622a1cf839870612205f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS/bundle.json","state_url":"https://pith.science/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS/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":"2026-05-27T15:47:15Z","links":{"resolver":"https://pith.science/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS","bundle":"https://pith.science/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS/bundle.json","state":"https://pith.science/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RYIQ5OPBSPKU7JCZ4TL6JYEFJS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RYIQ5OPBSPKU7JCZ4TL6JYEFJS","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":"6e4d0751dc54f2426820ba67c9b62da5455f88814d7f43b21dfdbfbbc91fe500","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2017-09-13T09:35:48Z","title_canon_sha256":"d8396e8e6c84429bc16632146c08b9a620eccfe45cb082d1a399ea21b7f50b7f"},"schema_version":"1.0","source":{"id":"1709.04211","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04211","created_at":"2026-05-18T00:15:42Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04211v2","created_at":"2026-05-18T00:15:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04211","created_at":"2026-05-18T00:15:42Z"},{"alias_kind":"pith_short_12","alias_value":"RYIQ5OPBSPKU","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"RYIQ5OPBSPKU7JCZ","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"RYIQ5OPB","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:db06646dbfc331c38a05fd99b075d04fc5ef6f71418c622a1cf839870612205f","target":"graph","created_at":"2026-05-18T00:15:42Z","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 propose to study the transition from a nodal loop to nodal chain phase in a tunable two-dimensional $\\pi$-flux lattice with periodical modulation potential. The Hamiltonian describes a periodically modulated optical lattice system under artificial magnetic fluxes and the tunable modulation phase factor provides additionally an artificial dimension of external parameter space. We demonstrate that this lattice system is able to describe a semimetal with either nodal loop or nodal chain Fermi surface in the extended three-dimensional Brillouin zone. By changing the strength of modulation poten","authors_text":"Chuanhao Yin, Linhu Li, Shu Chen","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2017-09-13T09:35:48Z","title":"Transition from nodal loop to nodal chain phase in a periodically modulated optical lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04211","kind":"arxiv","version":2},"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:fb4c47aebdd788d0cc8b936613cf994a3ded3f0ca13ea1a7fd1f4f43ff9402ac","target":"record","created_at":"2026-05-18T00:15:42Z","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":"6e4d0751dc54f2426820ba67c9b62da5455f88814d7f43b21dfdbfbbc91fe500","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2017-09-13T09:35:48Z","title_canon_sha256":"d8396e8e6c84429bc16632146c08b9a620eccfe45cb082d1a399ea21b7f50b7f"},"schema_version":"1.0","source":{"id":"1709.04211","kind":"arxiv","version":2}},"canonical_sha256":"8e110eb9e193d54fa459e4d7e4e0854c9cafb9c3897ec44a8c78be3c026df5d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e110eb9e193d54fa459e4d7e4e0854c9cafb9c3897ec44a8c78be3c026df5d1","first_computed_at":"2026-05-18T00:15:42.072530Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:42.072530Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CdN7sYfG1i0EzNa+cNl4JtsArjjTVl+CiySY1JSaIaE0g7DFPX/h6TSuSI6wKzt/aFHuEMVUrvYivzfoLXbUAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:42.073065Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04211","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb4c47aebdd788d0cc8b936613cf994a3ded3f0ca13ea1a7fd1f4f43ff9402ac","sha256:db06646dbfc331c38a05fd99b075d04fc5ef6f71418c622a1cf839870612205f"],"state_sha256":"13f6cda4bfd137e6e7a752bb366a172a60ffc97f948ec718414bfd811f198d0b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"flhwlPApiW6JKuO1DtavZRR+RqTO3fOun1We47kJBgyDwrYWfqx1C5HGKdZr9fxeQfd4yVdNCQ2Mx6/rMS+yCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:47:15.262916Z","bundle_sha256":"71fcd9db95093761b59a5702af5fdb463cff3ccc7d697c3d2c6b493510249ae8"}}