{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:D5QC5SWYURZOST3SWUSCKCJ3BS","short_pith_number":"pith:D5QC5SWY","canonical_record":{"source":{"id":"1204.5080","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-23T14:58:39Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"f3109db4c183e64148b4fcf73181e0a55e4b4b7fb3389382bd6af1e293b288bc","abstract_canon_sha256":"3a12d2658bf761e1161e16c17980dd57f9ad5f994cc7632d72e4c2ecb077f824"},"schema_version":"1.0"},"canonical_sha256":"1f602ecad8a472e94f72b52425093b0ca7f50a849c654c1ad2ed4b492b1d0104","source":{"kind":"arxiv","id":"1204.5080","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5080","created_at":"2026-05-18T03:51:58Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5080v1","created_at":"2026-05-18T03:51:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5080","created_at":"2026-05-18T03:51:58Z"},{"alias_kind":"pith_short_12","alias_value":"D5QC5SWYURZO","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"D5QC5SWYURZOST3S","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"D5QC5SWY","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:D5QC5SWYURZOST3SWUSCKCJ3BS","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5080","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-23T14:58:39Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"f3109db4c183e64148b4fcf73181e0a55e4b4b7fb3389382bd6af1e293b288bc","abstract_canon_sha256":"3a12d2658bf761e1161e16c17980dd57f9ad5f994cc7632d72e4c2ecb077f824"},"schema_version":"1.0"},"canonical_sha256":"1f602ecad8a472e94f72b52425093b0ca7f50a849c654c1ad2ed4b492b1d0104","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:51:58.056854Z","signature_b64":"WETxZ1F1XEOT5tkqxwi7cS9kCDnHzb6ojryn9KbvdU7uvjR3Ahv8Eivy2TA0fXavFpkjtkQRK56ZvmG28r1RAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f602ecad8a472e94f72b52425093b0ca7f50a849c654c1ad2ed4b492b1d0104","last_reissued_at":"2026-05-18T03:51:58.055999Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:51:58.055999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5080","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":"2026-05-18T03:51:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0HXUNz9Xz++/ATAXbf/bd9diaeA1R48jQbQtQEytKNS90IIsQ6oJTPLDY5zyj0Y7j9Q4t89r4IooA/nMeeqOAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:24:06.857249Z"},"content_sha256":"c9f6a1be241d04c82e212edb57738a9bf95b84c7e15d44a56e5ac3437035ca06","schema_version":"1.0","event_id":"sha256:c9f6a1be241d04c82e212edb57738a9bf95b84c7e15d44a56e5ac3437035ca06"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:D5QC5SWYURZOST3SWUSCKCJ3BS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tensor network techniques for the computation of dynamical observables in 1D quantum spin systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"quant-ph","authors_text":"Alexander M\\\"uller-Hermes, J. Ignacio Cirac, Mari Carmen Ba\\~nuls","submitted_at":"2012-04-23T14:58:39Z","abstract_excerpt":"We analyze the recently developed folding algorithm [Phys. Rev. Lett. 102, 240603 (2009)] to simulate the dynamics of infinite quantum spin chains, and relate its performance to the kind of entanglement produced under the evolution of product states. We benchmark the accomplishments of this technique with respect to alternative strategies using Ising Hamiltonians with transverse and parallel fields, as well as XY models. Additionally, we evaluate its ability to find ground and thermal equilibrium states."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5080","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":""},"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":"2026-05-18T03:51:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rnsoaOnZNEN+py8e9kE13o5HU8FuDW72pJFcET3yOk2EeU3dHlrLwMoLug8rf7U5IFG9LPQYLMYzhb6k27ERBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:24:06.857627Z"},"content_sha256":"da7d9ee2cb2af43d72d385c0cf319cdca1da330d71aa27e4a6f378a379b03b0a","schema_version":"1.0","event_id":"sha256:da7d9ee2cb2af43d72d385c0cf319cdca1da330d71aa27e4a6f378a379b03b0a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D5QC5SWYURZOST3SWUSCKCJ3BS/bundle.json","state_url":"https://pith.science/pith/D5QC5SWYURZOST3SWUSCKCJ3BS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D5QC5SWYURZOST3SWUSCKCJ3BS/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":"2026-06-02T19:24:06Z","links":{"resolver":"https://pith.science/pith/D5QC5SWYURZOST3SWUSCKCJ3BS","bundle":"https://pith.science/pith/D5QC5SWYURZOST3SWUSCKCJ3BS/bundle.json","state":"https://pith.science/pith/D5QC5SWYURZOST3SWUSCKCJ3BS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D5QC5SWYURZOST3SWUSCKCJ3BS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:D5QC5SWYURZOST3SWUSCKCJ3BS","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":"3a12d2658bf761e1161e16c17980dd57f9ad5f994cc7632d72e4c2ecb077f824","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-23T14:58:39Z","title_canon_sha256":"f3109db4c183e64148b4fcf73181e0a55e4b4b7fb3389382bd6af1e293b288bc"},"schema_version":"1.0","source":{"id":"1204.5080","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5080","created_at":"2026-05-18T03:51:58Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5080v1","created_at":"2026-05-18T03:51:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5080","created_at":"2026-05-18T03:51:58Z"},{"alias_kind":"pith_short_12","alias_value":"D5QC5SWYURZO","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"D5QC5SWYURZOST3S","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"D5QC5SWY","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:da7d9ee2cb2af43d72d385c0cf319cdca1da330d71aa27e4a6f378a379b03b0a","target":"graph","created_at":"2026-05-18T03:51:58Z","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":"We analyze the recently developed folding algorithm [Phys. Rev. Lett. 102, 240603 (2009)] to simulate the dynamics of infinite quantum spin chains, and relate its performance to the kind of entanglement produced under the evolution of product states. We benchmark the accomplishments of this technique with respect to alternative strategies using Ising Hamiltonians with transverse and parallel fields, as well as XY models. Additionally, we evaluate its ability to find ground and thermal equilibrium states.","authors_text":"Alexander M\\\"uller-Hermes, J. Ignacio Cirac, Mari Carmen Ba\\~nuls","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-23T14:58:39Z","title":"Tensor network techniques for the computation of dynamical observables in 1D quantum spin systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5080","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:c9f6a1be241d04c82e212edb57738a9bf95b84c7e15d44a56e5ac3437035ca06","target":"record","created_at":"2026-05-18T03:51:58Z","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":"3a12d2658bf761e1161e16c17980dd57f9ad5f994cc7632d72e4c2ecb077f824","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-04-23T14:58:39Z","title_canon_sha256":"f3109db4c183e64148b4fcf73181e0a55e4b4b7fb3389382bd6af1e293b288bc"},"schema_version":"1.0","source":{"id":"1204.5080","kind":"arxiv","version":1}},"canonical_sha256":"1f602ecad8a472e94f72b52425093b0ca7f50a849c654c1ad2ed4b492b1d0104","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f602ecad8a472e94f72b52425093b0ca7f50a849c654c1ad2ed4b492b1d0104","first_computed_at":"2026-05-18T03:51:58.055999Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:51:58.055999Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WETxZ1F1XEOT5tkqxwi7cS9kCDnHzb6ojryn9KbvdU7uvjR3Ahv8Eivy2TA0fXavFpkjtkQRK56ZvmG28r1RAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:51:58.056854Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5080","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9f6a1be241d04c82e212edb57738a9bf95b84c7e15d44a56e5ac3437035ca06","sha256:da7d9ee2cb2af43d72d385c0cf319cdca1da330d71aa27e4a6f378a379b03b0a"],"state_sha256":"7635468036575b408a6e744410e4151b210acc6678060cc2a4e3096f337b2fd3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R7N0aR8K41/JDy4nDPm0h3sQPqcuzDT2o8qj17pAQ5p+c6Jt2DVO0B8wC73FbptyjIKk1NE7njR/5n299SmZCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:24:06.860603Z","bundle_sha256":"3b479e455d312ca613167d30f55eb6e32513c0672d17b538714fbb6bb6b6211f"}}