{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VZ6JSVL4ZF4Z2SQLUYLR73D4U6","short_pith_number":"pith:VZ6JSVL4","canonical_record":{"source":{"id":"1511.00794","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-11-03T06:55:21Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"25c486b4152f56b63b8a59b16bb9bc2588149d01208a2646019007f410e4115d","abstract_canon_sha256":"6b421d586be16ff5c7156abab92d2b7f22155279a4da4133f0b6c7f405ab0bb0"},"schema_version":"1.0"},"canonical_sha256":"ae7c99557cc9799d4a0ba6171fec7ca79af97e8b222735cb4fc74f72067ac70d","source":{"kind":"arxiv","id":"1511.00794","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00794","created_at":"2026-05-18T01:27:48Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00794v2","created_at":"2026-05-18T01:27:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00794","created_at":"2026-05-18T01:27:48Z"},{"alias_kind":"pith_short_12","alias_value":"VZ6JSVL4ZF4Z","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VZ6JSVL4ZF4Z2SQL","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VZ6JSVL4","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VZ6JSVL4ZF4Z2SQLUYLR73D4U6","target":"record","payload":{"canonical_record":{"source":{"id":"1511.00794","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-11-03T06:55:21Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"25c486b4152f56b63b8a59b16bb9bc2588149d01208a2646019007f410e4115d","abstract_canon_sha256":"6b421d586be16ff5c7156abab92d2b7f22155279a4da4133f0b6c7f405ab0bb0"},"schema_version":"1.0"},"canonical_sha256":"ae7c99557cc9799d4a0ba6171fec7ca79af97e8b222735cb4fc74f72067ac70d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:48.158311Z","signature_b64":"iEmp63fY5BZYfWhHEZJdfqCYzW2PgJ0+yHX0VvF2/zvXPCnh34rhSXQuI5/3v1ciJkyRolerLTe+EdaHM1IMBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae7c99557cc9799d4a0ba6171fec7ca79af97e8b222735cb4fc74f72067ac70d","last_reissued_at":"2026-05-18T01:27:48.157560Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:48.157560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.00794","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":"2026-05-18T01:27:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SypHNDr72MPyjqdBiYhHAY8mWlmIV45Hwl00GF6xhplpbT5qA0o4hc9u9zYJvzN17zs/g79Lbs4lln3OgXXHBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T12:13:00.371037Z"},"content_sha256":"c3f19fd73bf671938994ac31da2a97337e3debf7d358a9f3dea5a6a92b027a2d","schema_version":"1.0","event_id":"sha256:c3f19fd73bf671938994ac31da2a97337e3debf7d358a9f3dea5a6a92b027a2d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VZ6JSVL4ZF4Z2SQLUYLR73D4U6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal evolution of the one-flavour Schwinger model using Matrix Product States","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"hep-lat","authors_text":"H. Saito, J. I. Cirac, K. Cichy, K. Jansen, M. C. Ba\\~nuls","submitted_at":"2015-11-03T06:55:21Z","abstract_excerpt":"The Schwinger model, or 1+1 dimensional QED, offers an interesting object of study, both at zero and non-zero temperature, because of its similarities to QCD. In this proceeding, we present the a full calculation of the temperature dependent chiral condensate of this model in the continuum limit using Matrix Product States (MPS). MPS methods, in general tensor networks, constitute a very promising technique for the non-perturbative study of Hamiltonian quantum systems. In the last few years, they have shown their suitability as ansatzes for ground states and low-lying excita- tions of lattice "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00794","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":"2026-05-18T01:27:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hd3xkNFSmP7vRNajIZvNa8tOuH7OZcA0BFULSHD4BIs3YPdMO6Y8+rvQWtZ09fe2F9GH1lAyvnONfx5brsSACg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T12:13:00.371739Z"},"content_sha256":"3b4b34b15aa92cc5a103d3e6577ef35b443cbc220508a12ac737d07836e785e2","schema_version":"1.0","event_id":"sha256:3b4b34b15aa92cc5a103d3e6577ef35b443cbc220508a12ac737d07836e785e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6/bundle.json","state_url":"https://pith.science/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6/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":"2026-06-06T12:13:00Z","links":{"resolver":"https://pith.science/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6","bundle":"https://pith.science/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6/bundle.json","state":"https://pith.science/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VZ6JSVL4ZF4Z2SQLUYLR73D4U6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VZ6JSVL4ZF4Z2SQLUYLR73D4U6","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":"6b421d586be16ff5c7156abab92d2b7f22155279a4da4133f0b6c7f405ab0bb0","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-11-03T06:55:21Z","title_canon_sha256":"25c486b4152f56b63b8a59b16bb9bc2588149d01208a2646019007f410e4115d"},"schema_version":"1.0","source":{"id":"1511.00794","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00794","created_at":"2026-05-18T01:27:48Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00794v2","created_at":"2026-05-18T01:27:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00794","created_at":"2026-05-18T01:27:48Z"},{"alias_kind":"pith_short_12","alias_value":"VZ6JSVL4ZF4Z","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VZ6JSVL4ZF4Z2SQL","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VZ6JSVL4","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:3b4b34b15aa92cc5a103d3e6577ef35b443cbc220508a12ac737d07836e785e2","target":"graph","created_at":"2026-05-18T01:27:48Z","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 Schwinger model, or 1+1 dimensional QED, offers an interesting object of study, both at zero and non-zero temperature, because of its similarities to QCD. In this proceeding, we present the a full calculation of the temperature dependent chiral condensate of this model in the continuum limit using Matrix Product States (MPS). MPS methods, in general tensor networks, constitute a very promising technique for the non-perturbative study of Hamiltonian quantum systems. In the last few years, they have shown their suitability as ansatzes for ground states and low-lying excita- tions of lattice ","authors_text":"H. Saito, J. I. Cirac, K. Cichy, K. Jansen, M. C. Ba\\~nuls","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-11-03T06:55:21Z","title":"Thermal evolution of the one-flavour Schwinger model using Matrix Product States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00794","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:c3f19fd73bf671938994ac31da2a97337e3debf7d358a9f3dea5a6a92b027a2d","target":"record","created_at":"2026-05-18T01:27:48Z","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":"6b421d586be16ff5c7156abab92d2b7f22155279a4da4133f0b6c7f405ab0bb0","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2015-11-03T06:55:21Z","title_canon_sha256":"25c486b4152f56b63b8a59b16bb9bc2588149d01208a2646019007f410e4115d"},"schema_version":"1.0","source":{"id":"1511.00794","kind":"arxiv","version":2}},"canonical_sha256":"ae7c99557cc9799d4a0ba6171fec7ca79af97e8b222735cb4fc74f72067ac70d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae7c99557cc9799d4a0ba6171fec7ca79af97e8b222735cb4fc74f72067ac70d","first_computed_at":"2026-05-18T01:27:48.157560Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:48.157560Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iEmp63fY5BZYfWhHEZJdfqCYzW2PgJ0+yHX0VvF2/zvXPCnh34rhSXQuI5/3v1ciJkyRolerLTe+EdaHM1IMBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:48.158311Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00794","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3f19fd73bf671938994ac31da2a97337e3debf7d358a9f3dea5a6a92b027a2d","sha256:3b4b34b15aa92cc5a103d3e6577ef35b443cbc220508a12ac737d07836e785e2"],"state_sha256":"3554bb0ee73548a0929353885cdf921d5cdb2f2fd1bc01a574db55dd4da23ead"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ho1biHFIswG1MHP0o7hJgtnFvZqLh+jleyoH6tUizmbAsYwX3JMSp+d4dAGn5z8BwqfIlGrcsd0jsczZ/YBqAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T12:13:00.375079Z","bundle_sha256":"3d4d9e8d28c8902cb436349d58640f73e7d9a4eef780b2f53c4d8e033c633295"}}