{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:HTRTSEJOHIXRRUMWNKKX7YCT26","short_pith_number":"pith:HTRTSEJO","canonical_record":{"source":{"id":"1409.8616","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-09-30T16:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"6e42b4d38ea072c9c01c8765728d27de97ef5a98eab185f952bfdb4a3aaafadf","abstract_canon_sha256":"f85ca0b9597e819a075c9e545d342a37731e9df12bfd3d024b5409147567e441"},"schema_version":"1.0"},"canonical_sha256":"3ce339112e3a2f18d1966a957fe053d7b77b3abd838c5a67844d36fc10bcfae8","source":{"kind":"arxiv","id":"1409.8616","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.8616","created_at":"2026-05-18T01:55:53Z"},{"alias_kind":"arxiv_version","alias_value":"1409.8616v2","created_at":"2026-05-18T01:55:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.8616","created_at":"2026-05-18T01:55:53Z"},{"alias_kind":"pith_short_12","alias_value":"HTRTSEJOHIXR","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HTRTSEJOHIXRRUMW","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HTRTSEJO","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:HTRTSEJOHIXRRUMWNKKX7YCT26","target":"record","payload":{"canonical_record":{"source":{"id":"1409.8616","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-09-30T16:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"6e42b4d38ea072c9c01c8765728d27de97ef5a98eab185f952bfdb4a3aaafadf","abstract_canon_sha256":"f85ca0b9597e819a075c9e545d342a37731e9df12bfd3d024b5409147567e441"},"schema_version":"1.0"},"canonical_sha256":"3ce339112e3a2f18d1966a957fe053d7b77b3abd838c5a67844d36fc10bcfae8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:53.134453Z","signature_b64":"25SiDMDbpjHbrwX5RL1Ir/jdrJamVGMmsc1Fdpg/1nsPkZVmtqvIg30q3RumZ0A0If3C4w5OcwTHvcykSwz1Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ce339112e3a2f18d1966a957fe053d7b77b3abd838c5a67844d36fc10bcfae8","last_reissued_at":"2026-05-18T01:55:53.133777Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:53.133777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.8616","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":"2026-05-18T01:55:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q5Jm4YIh9W0lA0khRrf+xoUzg5OYw+yld1VI55KQ65AIQeWTiRu+VLN7XUEIxN7eZ9d5lUizvpk365VUDwQ/AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:21:43.561823Z"},"content_sha256":"6f17632902e46db648ac0743b38413295dcf658b394016abdd0bb55cfb319dcc","schema_version":"1.0","event_id":"sha256:6f17632902e46db648ac0743b38413295dcf658b394016abdd0bb55cfb319dcc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:HTRTSEJOHIXRRUMWNKKX7YCT26","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Distinct trivial phases protected by a point-group symmetry in quantum spin chains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Frank Pollmann, Masaki Oshikawa, Yohei Fuji","submitted_at":"2014-09-30T16:24:28Z","abstract_excerpt":"The ground state of the $S=1$ antiferromagnetic Heisenberg chain belongs to the Haldane phase -- a well known example of symmetry-protected topological phase. A staggered field applied to the $S=1$ antiferromagnetic chain breaks all the symmetries that protect the Haldane phase as a topological phase, reducing it to a trivial phase. That is, the Haldane phase is then connected adiabatically to an antiferromagnetic product state. Nevertheless, as long as the symmetry under site-centered inversion combined with a spin rotation is preserved, the phase is still distinct from another trivial phase."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.8616","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":"2026-05-18T01:55:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4shA/BCWVFsUM43hcSHnB8fPsbOx0y/K5oQwjqLXtPeALUgwRy35M2P9zyDG4SZfJB7zcalutXfu6AhTdjORAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:21:43.562493Z"},"content_sha256":"12319602609acf1ae9319d10c9edd3a8884501a2990f2c15dcec9cbf4221f90b","schema_version":"1.0","event_id":"sha256:12319602609acf1ae9319d10c9edd3a8884501a2990f2c15dcec9cbf4221f90b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HTRTSEJOHIXRRUMWNKKX7YCT26/bundle.json","state_url":"https://pith.science/pith/HTRTSEJOHIXRRUMWNKKX7YCT26/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HTRTSEJOHIXRRUMWNKKX7YCT26/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":"2026-05-24T17:21:43Z","links":{"resolver":"https://pith.science/pith/HTRTSEJOHIXRRUMWNKKX7YCT26","bundle":"https://pith.science/pith/HTRTSEJOHIXRRUMWNKKX7YCT26/bundle.json","state":"https://pith.science/pith/HTRTSEJOHIXRRUMWNKKX7YCT26/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HTRTSEJOHIXRRUMWNKKX7YCT26/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HTRTSEJOHIXRRUMWNKKX7YCT26","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":"f85ca0b9597e819a075c9e545d342a37731e9df12bfd3d024b5409147567e441","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-09-30T16:24:28Z","title_canon_sha256":"6e42b4d38ea072c9c01c8765728d27de97ef5a98eab185f952bfdb4a3aaafadf"},"schema_version":"1.0","source":{"id":"1409.8616","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.8616","created_at":"2026-05-18T01:55:53Z"},{"alias_kind":"arxiv_version","alias_value":"1409.8616v2","created_at":"2026-05-18T01:55:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.8616","created_at":"2026-05-18T01:55:53Z"},{"alias_kind":"pith_short_12","alias_value":"HTRTSEJOHIXR","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HTRTSEJOHIXRRUMW","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HTRTSEJO","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:12319602609acf1ae9319d10c9edd3a8884501a2990f2c15dcec9cbf4221f90b","target":"graph","created_at":"2026-05-18T01:55:53Z","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":"The ground state of the $S=1$ antiferromagnetic Heisenberg chain belongs to the Haldane phase -- a well known example of symmetry-protected topological phase. A staggered field applied to the $S=1$ antiferromagnetic chain breaks all the symmetries that protect the Haldane phase as a topological phase, reducing it to a trivial phase. That is, the Haldane phase is then connected adiabatically to an antiferromagnetic product state. Nevertheless, as long as the symmetry under site-centered inversion combined with a spin rotation is preserved, the phase is still distinct from another trivial phase.","authors_text":"Frank Pollmann, Masaki Oshikawa, Yohei Fuji","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-09-30T16:24:28Z","title":"Distinct trivial phases protected by a point-group symmetry in quantum spin chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.8616","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":"sha256:6f17632902e46db648ac0743b38413295dcf658b394016abdd0bb55cfb319dcc","target":"record","created_at":"2026-05-18T01:55:53Z","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":"f85ca0b9597e819a075c9e545d342a37731e9df12bfd3d024b5409147567e441","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-09-30T16:24:28Z","title_canon_sha256":"6e42b4d38ea072c9c01c8765728d27de97ef5a98eab185f952bfdb4a3aaafadf"},"schema_version":"1.0","source":{"id":"1409.8616","kind":"arxiv","version":2}},"canonical_sha256":"3ce339112e3a2f18d1966a957fe053d7b77b3abd838c5a67844d36fc10bcfae8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ce339112e3a2f18d1966a957fe053d7b77b3abd838c5a67844d36fc10bcfae8","first_computed_at":"2026-05-18T01:55:53.133777Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:53.133777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"25SiDMDbpjHbrwX5RL1Ir/jdrJamVGMmsc1Fdpg/1nsPkZVmtqvIg30q3RumZ0A0If3C4w5OcwTHvcykSwz1Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:53.134453Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.8616","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f17632902e46db648ac0743b38413295dcf658b394016abdd0bb55cfb319dcc","sha256:12319602609acf1ae9319d10c9edd3a8884501a2990f2c15dcec9cbf4221f90b"],"state_sha256":"9abc50bbf66a8f91a17ca642c3efa8cccd6520f632a90685d2047d4b4b807ea2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UvGJGO97vgbsxa7kF9z6WkeyP64JuplcFMtLdQVNliXOTQBp1MvYqi6ySrJ/W/0891jdSAWFcqqskpm8FGC/Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T17:21:43.567691Z","bundle_sha256":"7c8db02ef4dd91cbf87af13888f04f86a2c3e27e867d5b8d018ff33d55c319d5"}}