{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:R7EFLQXRQA32ED5DGXTATTRXTW","short_pith_number":"pith:R7EFLQXR","canonical_record":{"source":{"id":"1809.07771","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-20T18:00:01Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"52fb383b0b9f278cdf1dd915c334cd264036004fe9880b40c7e8e115a6b28ae4","abstract_canon_sha256":"1e456d10fbec97ea70cd2eef22d379d9cb9c7c37b8434652ccba07aadaf862dd"},"schema_version":"1.0"},"canonical_sha256":"8fc855c2f18037a20fa335e609ce379dba5bd785e7f305be7318c476d41651cb","source":{"kind":"arxiv","id":"1809.07771","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.07771","created_at":"2026-05-17T23:39:58Z"},{"alias_kind":"arxiv_version","alias_value":"1809.07771v3","created_at":"2026-05-17T23:39:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.07771","created_at":"2026-05-17T23:39:58Z"},{"alias_kind":"pith_short_12","alias_value":"R7EFLQXRQA32","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"R7EFLQXRQA32ED5D","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"R7EFLQXR","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:R7EFLQXRQA32ED5DGXTATTRXTW","target":"record","payload":{"canonical_record":{"source":{"id":"1809.07771","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-20T18:00:01Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"52fb383b0b9f278cdf1dd915c334cd264036004fe9880b40c7e8e115a6b28ae4","abstract_canon_sha256":"1e456d10fbec97ea70cd2eef22d379d9cb9c7c37b8434652ccba07aadaf862dd"},"schema_version":"1.0"},"canonical_sha256":"8fc855c2f18037a20fa335e609ce379dba5bd785e7f305be7318c476d41651cb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:58.204682Z","signature_b64":"4gzgiW/i0oq2BDWi215kC5as23zESDSYOp2+m+yd+L8YmJHpgCjaeNCnOFRkekJQFHG25cccL2x4NdGhCfmIBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8fc855c2f18037a20fa335e609ce379dba5bd785e7f305be7318c476d41651cb","last_reissued_at":"2026-05-17T23:39:58.203987Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:58.203987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.07771","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":"2026-05-17T23:39:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n0l9KZD1vExr1F56+XT8wf4bl3vlDKHz0HIhpkR8LZuhc0FeHT3inDx33+ShiiG7+vCINfpSwgolSsD/JgleCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:29:21.667816Z"},"content_sha256":"b25f36a65b3d8ecf04493360e991763a93b3535cce6880ab68d8acfdec38a350","schema_version":"1.0","event_id":"sha256:b25f36a65b3d8ecf04493360e991763a93b3535cce6880ab68d8acfdec38a350"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:R7EFLQXRQA32ED5DGXTATTRXTW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A continuous topological phase transition between two 1D anti-ferromagnetic spin-1 boson superfluids with the same symmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"Wenjie Ji, Xiao-Gang Wen","submitted_at":"2018-09-20T18:00:01Z","abstract_excerpt":"Spin-1 bosons on a 1-dimensional chain, at incommensurate filling with anti-ferromagnetic spin interaction between neighboring bosons, may form a spin-1 boson condensed state that contains both gapless charge and spin excitations. We argue that the spin-1 boson condensed state is unstable, and will become one of two superfluids by opening a spin gap. One superfluid must have a spin-1 ground state on a ring if it contains an odd number of bosons and has no degenerate states at the chain end. The other superfluid has a spin-0 ground state on a ring for any numbers of bosons and has a spin-$\\frac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07771","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":"2026-05-17T23:39:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zn4EZg56HXJrX0BqcDmNWDML36WuIlTOliUx7km5GrNDOfXOUHhgkOP4XmaAVG3QWgULX/4jkD8MHuA1t6+pCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:29:21.668429Z"},"content_sha256":"385468647047092d0f9b94906b18b401297dee4a927df20189353605433133c5","schema_version":"1.0","event_id":"sha256:385468647047092d0f9b94906b18b401297dee4a927df20189353605433133c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R7EFLQXRQA32ED5DGXTATTRXTW/bundle.json","state_url":"https://pith.science/pith/R7EFLQXRQA32ED5DGXTATTRXTW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R7EFLQXRQA32ED5DGXTATTRXTW/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":"2026-05-27T07:29:21Z","links":{"resolver":"https://pith.science/pith/R7EFLQXRQA32ED5DGXTATTRXTW","bundle":"https://pith.science/pith/R7EFLQXRQA32ED5DGXTATTRXTW/bundle.json","state":"https://pith.science/pith/R7EFLQXRQA32ED5DGXTATTRXTW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R7EFLQXRQA32ED5DGXTATTRXTW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:R7EFLQXRQA32ED5DGXTATTRXTW","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":"1e456d10fbec97ea70cd2eef22d379d9cb9c7c37b8434652ccba07aadaf862dd","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-20T18:00:01Z","title_canon_sha256":"52fb383b0b9f278cdf1dd915c334cd264036004fe9880b40c7e8e115a6b28ae4"},"schema_version":"1.0","source":{"id":"1809.07771","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.07771","created_at":"2026-05-17T23:39:58Z"},{"alias_kind":"arxiv_version","alias_value":"1809.07771v3","created_at":"2026-05-17T23:39:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.07771","created_at":"2026-05-17T23:39:58Z"},{"alias_kind":"pith_short_12","alias_value":"R7EFLQXRQA32","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"R7EFLQXRQA32ED5D","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"R7EFLQXR","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:385468647047092d0f9b94906b18b401297dee4a927df20189353605433133c5","target":"graph","created_at":"2026-05-17T23:39:58Z","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":"Spin-1 bosons on a 1-dimensional chain, at incommensurate filling with anti-ferromagnetic spin interaction between neighboring bosons, may form a spin-1 boson condensed state that contains both gapless charge and spin excitations. We argue that the spin-1 boson condensed state is unstable, and will become one of two superfluids by opening a spin gap. One superfluid must have a spin-1 ground state on a ring if it contains an odd number of bosons and has no degenerate states at the chain end. The other superfluid has a spin-0 ground state on a ring for any numbers of bosons and has a spin-$\\frac","authors_text":"Wenjie Ji, Xiao-Gang Wen","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-20T18:00:01Z","title":"A continuous topological phase transition between two 1D anti-ferromagnetic spin-1 boson superfluids with the same symmetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07771","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:b25f36a65b3d8ecf04493360e991763a93b3535cce6880ab68d8acfdec38a350","target":"record","created_at":"2026-05-17T23:39:58Z","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":"1e456d10fbec97ea70cd2eef22d379d9cb9c7c37b8434652ccba07aadaf862dd","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-20T18:00:01Z","title_canon_sha256":"52fb383b0b9f278cdf1dd915c334cd264036004fe9880b40c7e8e115a6b28ae4"},"schema_version":"1.0","source":{"id":"1809.07771","kind":"arxiv","version":3}},"canonical_sha256":"8fc855c2f18037a20fa335e609ce379dba5bd785e7f305be7318c476d41651cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8fc855c2f18037a20fa335e609ce379dba5bd785e7f305be7318c476d41651cb","first_computed_at":"2026-05-17T23:39:58.203987Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:58.203987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4gzgiW/i0oq2BDWi215kC5as23zESDSYOp2+m+yd+L8YmJHpgCjaeNCnOFRkekJQFHG25cccL2x4NdGhCfmIBg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:58.204682Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.07771","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b25f36a65b3d8ecf04493360e991763a93b3535cce6880ab68d8acfdec38a350","sha256:385468647047092d0f9b94906b18b401297dee4a927df20189353605433133c5"],"state_sha256":"aa279f73ba861fc1eec3b2eb4889aa3b5391b494b5673b5093fa2687fb070cfa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OY+Fb/no43NY+S6kxiAt7A8E4Uy2u9rWBX/ANKyKUM9V5W2zXmLZJsuaPpJARc//binuWVmuXSoiX9xwu/zxDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:29:21.672085Z","bundle_sha256":"1ac000fcf7319face500af20d7cc9f1fe0d1425ba390952dda48e62fcf44d72a"}}