{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XTQVBW57RUN4ERMTDXQ75LV4DV","short_pith_number":"pith:XTQVBW57","canonical_record":{"source":{"id":"1809.00746","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-03T23:55:28Z","cross_cats_sorted":[],"title_canon_sha256":"b3bb7f10b0aab26cff177be436c035ca804aa628e00b27068950bc426cb3c384","abstract_canon_sha256":"43d2196b0ebd7ff59925da1f821881a5bff91da18b0aa101f72dd2b7f61764eb"},"schema_version":"1.0"},"canonical_sha256":"bce150dbbf8d1bc245931de1feaebc1d4723baab71efa782011ef35c4a31fb6e","source":{"kind":"arxiv","id":"1809.00746","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00746","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00746v2","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00746","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"XTQVBW57RUN4","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTQVBW57RUN4ERMT","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTQVBW57","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XTQVBW57RUN4ERMTDXQ75LV4DV","target":"record","payload":{"canonical_record":{"source":{"id":"1809.00746","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-03T23:55:28Z","cross_cats_sorted":[],"title_canon_sha256":"b3bb7f10b0aab26cff177be436c035ca804aa628e00b27068950bc426cb3c384","abstract_canon_sha256":"43d2196b0ebd7ff59925da1f821881a5bff91da18b0aa101f72dd2b7f61764eb"},"schema_version":"1.0"},"canonical_sha256":"bce150dbbf8d1bc245931de1feaebc1d4723baab71efa782011ef35c4a31fb6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:59.388487Z","signature_b64":"sTahebwSm6GfZZT8rc+vb0My3wSXxDydU7M4u2xKsKHIDfzF47qvtD4lcpmpvoQyArRulv0OR6A/fG6/0w+qDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bce150dbbf8d1bc245931de1feaebc1d4723baab71efa782011ef35c4a31fb6e","last_reissued_at":"2026-05-17T23:50:59.387866Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:59.387866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.00746","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":"2026-05-17T23:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Kdbiz2j2oEGMbFYd+UGqu6Vry6IsYv2J+Ioo5ZTnBjNH3ZtGN8F1kxGiBTdqUUt/T364Y6XspyFbzh/xBVyAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:43:46.161852Z"},"content_sha256":"2f3894f454db422272717b5a012ee0efcc89a74fdfe7aa1391fb703a04791e01","schema_version":"1.0","event_id":"sha256:2f3894f454db422272717b5a012ee0efcc89a74fdfe7aa1391fb703a04791e01"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XTQVBW57RUN4ERMTDXQ75LV4DV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DMRG investigation of constrained models: from quantum dimer and quantum loop ladders to hard-boson and Fibonacci anyon chains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Fr\\'ed\\'eric Mila, Natalia Chepiga","submitted_at":"2018-09-03T23:55:28Z","abstract_excerpt":"Motivated by the presence of Ising transitions that take place entirely in the singlet sector of frustrated spin-1/2 ladders and spin-1 chains, we study two types of effective dimer models on ladders, a quantum dimer model and a quantum loop model. Building on the constraints imposed on the dimers, we develop a Density Matrix Renormalization Group algorithm that takes full advantage of the relatively small Hilbert space that only grows as Fibonacci number. We further show that both models can be mapped rigorously onto a hard-boson model first studied by Fendley, Sengupta and Sachdev [Phys. Rev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00746","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":"2026-05-17T23:50:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zw9o+CKjYyco0BcD5lw0vYkPc+3Z2ZiFNLI9AHJcXCVyi3C2T4chtK74kwlxpkciTv4yUSJDo7ACY714zcoDAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T19:43:46.162485Z"},"content_sha256":"65a028ed1558edb77116b53f08477154752d80655f839ba339d9e3dc82a1ddf1","schema_version":"1.0","event_id":"sha256:65a028ed1558edb77116b53f08477154752d80655f839ba339d9e3dc82a1ddf1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XTQVBW57RUN4ERMTDXQ75LV4DV/bundle.json","state_url":"https://pith.science/pith/XTQVBW57RUN4ERMTDXQ75LV4DV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XTQVBW57RUN4ERMTDXQ75LV4DV/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":"2026-06-05T19:43:46Z","links":{"resolver":"https://pith.science/pith/XTQVBW57RUN4ERMTDXQ75LV4DV","bundle":"https://pith.science/pith/XTQVBW57RUN4ERMTDXQ75LV4DV/bundle.json","state":"https://pith.science/pith/XTQVBW57RUN4ERMTDXQ75LV4DV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XTQVBW57RUN4ERMTDXQ75LV4DV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XTQVBW57RUN4ERMTDXQ75LV4DV","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":"43d2196b0ebd7ff59925da1f821881a5bff91da18b0aa101f72dd2b7f61764eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-03T23:55:28Z","title_canon_sha256":"b3bb7f10b0aab26cff177be436c035ca804aa628e00b27068950bc426cb3c384"},"schema_version":"1.0","source":{"id":"1809.00746","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00746","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00746v2","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00746","created_at":"2026-05-17T23:50:59Z"},{"alias_kind":"pith_short_12","alias_value":"XTQVBW57RUN4","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTQVBW57RUN4ERMT","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTQVBW57","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:65a028ed1558edb77116b53f08477154752d80655f839ba339d9e3dc82a1ddf1","target":"graph","created_at":"2026-05-17T23:50:59Z","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":"Motivated by the presence of Ising transitions that take place entirely in the singlet sector of frustrated spin-1/2 ladders and spin-1 chains, we study two types of effective dimer models on ladders, a quantum dimer model and a quantum loop model. Building on the constraints imposed on the dimers, we develop a Density Matrix Renormalization Group algorithm that takes full advantage of the relatively small Hilbert space that only grows as Fibonacci number. We further show that both models can be mapped rigorously onto a hard-boson model first studied by Fendley, Sengupta and Sachdev [Phys. Rev","authors_text":"Fr\\'ed\\'eric Mila, Natalia Chepiga","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-03T23:55:28Z","title":"DMRG investigation of constrained models: from quantum dimer and quantum loop ladders to hard-boson and Fibonacci anyon chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00746","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":"sha256:2f3894f454db422272717b5a012ee0efcc89a74fdfe7aa1391fb703a04791e01","target":"record","created_at":"2026-05-17T23:50:59Z","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":"43d2196b0ebd7ff59925da1f821881a5bff91da18b0aa101f72dd2b7f61764eb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-09-03T23:55:28Z","title_canon_sha256":"b3bb7f10b0aab26cff177be436c035ca804aa628e00b27068950bc426cb3c384"},"schema_version":"1.0","source":{"id":"1809.00746","kind":"arxiv","version":2}},"canonical_sha256":"bce150dbbf8d1bc245931de1feaebc1d4723baab71efa782011ef35c4a31fb6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bce150dbbf8d1bc245931de1feaebc1d4723baab71efa782011ef35c4a31fb6e","first_computed_at":"2026-05-17T23:50:59.387866Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:59.387866Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sTahebwSm6GfZZT8rc+vb0My3wSXxDydU7M4u2xKsKHIDfzF47qvtD4lcpmpvoQyArRulv0OR6A/fG6/0w+qDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:59.388487Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00746","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f3894f454db422272717b5a012ee0efcc89a74fdfe7aa1391fb703a04791e01","sha256:65a028ed1558edb77116b53f08477154752d80655f839ba339d9e3dc82a1ddf1"],"state_sha256":"51836bb2a14afb063eb0c069c6c91d0966a93f88ba2ffb0ada2eaa1ba355ec21"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v2nm7QQHb0IxnXh6clx0M7LL1oKjV4yLoROUYF7jQh5t8P+OViW2GMmnbsbNBcxDfId+fQF3RlUhBFh0PriWBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T19:43:46.166086Z","bundle_sha256":"81d5d15883250ecde1eaa109f07939a51e71c69641650f25bae2789feb277304"}}