{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:NOBU7CUQJ6IJJDHXDGQ242A5ME","short_pith_number":"pith:NOBU7CUQ","canonical_record":{"source":{"id":"1810.08050","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-10-16T22:43:54Z","cross_cats_sorted":[],"title_canon_sha256":"1f8a1f07ac88ae83d602cd107c119c3f3b8ab3a9763c99829236cbe6f6a374a8","abstract_canon_sha256":"66d8638b385ae6e81a1879063f3608a2b03e83316072a6255b853ab78258812f"},"schema_version":"1.0"},"canonical_sha256":"6b834f8a904f90948cf719a1ae681d6112335ae09c0c6f837934e51e77006abd","source":{"kind":"arxiv","id":"1810.08050","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08050","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08050v3","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08050","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"pith_short_12","alias_value":"NOBU7CUQJ6IJ","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"pith_short_16","alias_value":"NOBU7CUQJ6IJJDHX","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"pith_short_8","alias_value":"NOBU7CUQ","created_at":"2026-07-05T04:59:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:NOBU7CUQJ6IJJDHXDGQ242A5ME","target":"record","payload":{"canonical_record":{"source":{"id":"1810.08050","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-10-16T22:43:54Z","cross_cats_sorted":[],"title_canon_sha256":"1f8a1f07ac88ae83d602cd107c119c3f3b8ab3a9763c99829236cbe6f6a374a8","abstract_canon_sha256":"66d8638b385ae6e81a1879063f3608a2b03e83316072a6255b853ab78258812f"},"schema_version":"1.0"},"canonical_sha256":"6b834f8a904f90948cf719a1ae681d6112335ae09c0c6f837934e51e77006abd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:59:52.504193Z","signature_b64":"oFIHXhaXR9mQLT51YlfJMgsAEHDPwYUuxbVrSMCIqmBywaoFgNQ18Uz8xEzIC7HN5SSkcNHZfSflqq3uQ5F0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b834f8a904f90948cf719a1ae681d6112335ae09c0c6f837934e51e77006abd","last_reissued_at":"2026-07-05T04:59:52.503810Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:59:52.503810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.08050","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":"2026-07-05T04:59:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wVaQiaAvkw0aFzeUG3/YD6etj31sGrAALzDHiqcbq16GCc4otYTrEcCxsUZlAggXRcRuEu9z2SU0x/kBWrhSDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:37:15.903127Z"},"content_sha256":"f3273ec6efd4eae02b3454b73d3ad1a849c0d199cbfad6b1135410f03fe0176c","schema_version":"1.0","event_id":"sha256:f3273ec6efd4eae02b3454b73d3ad1a849c0d199cbfad6b1135410f03fe0176c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:NOBU7CUQJ6IJJDHXDGQ242A5ME","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterizing the quantum field theory vacuum using temporal Matrix Product states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Emanuele Tirrito, Luca Tagliacozzo, Maciej Lewenstein, Neil J. Robinson, Shi-Ju Ran","submitted_at":"2018-10-16T22:43:54Z","abstract_excerpt":"In this paper we construct the continuous Matrix Product State (MPS) representation of the vacuum of the field theory corresponding to the continuous limit of an Ising model. We do this by exploiting the observation made by Hastings and Mahajan in [Phys. Rev. A \\textbf{91}, 032306 (2015)] that the Euclidean time evolution generates a continuous MPS along the time direction. We exploit this fact, together with the emerging Lorentz invariance at the critical point in order to identify the matrix product representation of the quantum field theory (QFT) vacuum with the continuous MPS in the time d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08050","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1810.08050/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:59:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zmbRAKh5pI6/RkbeidAsY4CEUvlsngDM3SOfCjToLALuq0BLbSQndUcaod2P5UOSIMaSfyHVh/4UTIH9QXXHCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:37:15.903518Z"},"content_sha256":"0fd34142ac6ce297d685c7b0038a523fa61636b9453e4883e16713592359a2f2","schema_version":"1.0","event_id":"sha256:0fd34142ac6ce297d685c7b0038a523fa61636b9453e4883e16713592359a2f2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME/bundle.json","state_url":"https://pith.science/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME/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":"2026-07-07T12:37:15Z","links":{"resolver":"https://pith.science/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME","bundle":"https://pith.science/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME/bundle.json","state":"https://pith.science/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NOBU7CUQJ6IJJDHXDGQ242A5ME/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:NOBU7CUQJ6IJJDHXDGQ242A5ME","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":"66d8638b385ae6e81a1879063f3608a2b03e83316072a6255b853ab78258812f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-10-16T22:43:54Z","title_canon_sha256":"1f8a1f07ac88ae83d602cd107c119c3f3b8ab3a9763c99829236cbe6f6a374a8"},"schema_version":"1.0","source":{"id":"1810.08050","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.08050","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"arxiv_version","alias_value":"1810.08050v3","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.08050","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"pith_short_12","alias_value":"NOBU7CUQJ6IJ","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"pith_short_16","alias_value":"NOBU7CUQJ6IJJDHX","created_at":"2026-07-05T04:59:52Z"},{"alias_kind":"pith_short_8","alias_value":"NOBU7CUQ","created_at":"2026-07-05T04:59:52Z"}],"graph_snapshots":[{"event_id":"sha256:0fd34142ac6ce297d685c7b0038a523fa61636b9453e4883e16713592359a2f2","target":"graph","created_at":"2026-07-05T04:59:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1810.08050/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we construct the continuous Matrix Product State (MPS) representation of the vacuum of the field theory corresponding to the continuous limit of an Ising model. We do this by exploiting the observation made by Hastings and Mahajan in [Phys. Rev. A \\textbf{91}, 032306 (2015)] that the Euclidean time evolution generates a continuous MPS along the time direction. We exploit this fact, together with the emerging Lorentz invariance at the critical point in order to identify the matrix product representation of the quantum field theory (QFT) vacuum with the continuous MPS in the time d","authors_text":"Emanuele Tirrito, Luca Tagliacozzo, Maciej Lewenstein, Neil J. Robinson, Shi-Ju Ran","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-10-16T22:43:54Z","title":"Characterizing the quantum field theory vacuum using temporal Matrix Product states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.08050","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:f3273ec6efd4eae02b3454b73d3ad1a849c0d199cbfad6b1135410f03fe0176c","target":"record","created_at":"2026-07-05T04:59:52Z","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":"66d8638b385ae6e81a1879063f3608a2b03e83316072a6255b853ab78258812f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2018-10-16T22:43:54Z","title_canon_sha256":"1f8a1f07ac88ae83d602cd107c119c3f3b8ab3a9763c99829236cbe6f6a374a8"},"schema_version":"1.0","source":{"id":"1810.08050","kind":"arxiv","version":3}},"canonical_sha256":"6b834f8a904f90948cf719a1ae681d6112335ae09c0c6f837934e51e77006abd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b834f8a904f90948cf719a1ae681d6112335ae09c0c6f837934e51e77006abd","first_computed_at":"2026-07-05T04:59:52.503810Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:59:52.503810Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oFIHXhaXR9mQLT51YlfJMgsAEHDPwYUuxbVrSMCIqmBywaoFgNQ18Uz8xEzIC7HN5SSkcNHZfSflqq3uQ5F0Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:59:52.504193Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.08050","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3273ec6efd4eae02b3454b73d3ad1a849c0d199cbfad6b1135410f03fe0176c","sha256:0fd34142ac6ce297d685c7b0038a523fa61636b9453e4883e16713592359a2f2"],"state_sha256":"64a1e69adc83cc6001894e14797d3c453dc2485daf74557824cc9a04286d8073"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vqy4wXaHPCUpyEnsjX01qEPBwkaiBvOMhZLUoMbNejCSds6cQPFQsbP6UZzQdxfjHCjRdhiu09BGD/RDRC+2Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:37:15.905351Z","bundle_sha256":"da1fc6f42f40047fd6b127339904b657f664f242de8f9bb4b27e865c4450e484"}}