{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:CLBQ4IPHFWYI2QZZUXE5522OHR","short_pith_number":"pith:CLBQ4IPH","canonical_record":{"source":{"id":"1602.04195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-02-12T20:26:25Z","cross_cats_sorted":[],"title_canon_sha256":"bf557b8e532d1b583085c7820672649633c656e2f670ebe6a2b566a45792b8d5","abstract_canon_sha256":"413176ca18ee20c69ee4eec8e3bbadea1ee4253b86675f6a9d708c17ba7a103a"},"schema_version":"1.0"},"canonical_sha256":"12c30e21e72db08d4339a5c9deeb4e3c457a7f8617281989a179193cbb421ac7","source":{"kind":"arxiv","id":"1602.04195","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.04195","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"arxiv_version","alias_value":"1602.04195v1","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.04195","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"pith_short_12","alias_value":"CLBQ4IPHFWYI","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CLBQ4IPHFWYI2QZZ","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CLBQ4IPH","created_at":"2026-05-18T12:30:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:CLBQ4IPHFWYI2QZZUXE5522OHR","target":"record","payload":{"canonical_record":{"source":{"id":"1602.04195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-02-12T20:26:25Z","cross_cats_sorted":[],"title_canon_sha256":"bf557b8e532d1b583085c7820672649633c656e2f670ebe6a2b566a45792b8d5","abstract_canon_sha256":"413176ca18ee20c69ee4eec8e3bbadea1ee4253b86675f6a9d708c17ba7a103a"},"schema_version":"1.0"},"canonical_sha256":"12c30e21e72db08d4339a5c9deeb4e3c457a7f8617281989a179193cbb421ac7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:42.682569Z","signature_b64":"T4s/E6qMEK0ws5tXTXT4aGh41J+3vAko0LREE0SO5EmCoc4efqWeFfIn2bPsq2TRzm9Vf3nDhLEoI9bgN/Q+BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"12c30e21e72db08d4339a5c9deeb4e3c457a7f8617281989a179193cbb421ac7","last_reissued_at":"2026-05-18T01:08:42.682099Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:42.682099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.04195","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":"2026-05-18T01:08:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eR423fMFt2V+MIzcB2fqWpFRj1bwgE4gaUP2ll/uyMDt2xEaBdGcgxC6+FeSKUM9iwdeT9AmRcbKyWqS/3R0DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T03:49:31.390072Z"},"content_sha256":"145d7b59a467c192be0e5f04fc07c069488b6ef5226557af6af8565f4e791d74","schema_version":"1.0","event_id":"sha256:145d7b59a467c192be0e5f04fc07c069488b6ef5226557af6af8565f4e791d74"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:CLBQ4IPHFWYI2QZZUXE5522OHR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Density matrix embedding theory for interacting electron-phonon systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Barbara Sandhoefer, Garnet Kin-Lic Chan","submitted_at":"2016-02-12T20:26:25Z","abstract_excerpt":"We describe the extension of the density matrix embedding theory (DMET) framework to coupled interacting fermion-boson systems. This provides a frequency-independent, entanglement embedding formalism to treat bulk fermion-boson problems. We illustrate the concepts within the context of the one-dimensional Hubbard-Holstein model, where the phonon bath states are obtained from the Schmidt decomposition of a self-consistently adjusted coherent state. We benchmark our results against accurate density matrix renormalization group calculations."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.04195","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":"2026-05-18T01:08:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ixXyFJHgEEtDoVg9Ch6oxo0+WHYC4NCHCzNISwNem7ZjoYdgeLmCOvm81DNz8yGwv9xp/uPfw/wp4eHiUHhsBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T03:49:31.390766Z"},"content_sha256":"9af963c3be410898c6d3e2cb3c2b01ea7b798aadd344d71aa3bdc2b282f210b6","schema_version":"1.0","event_id":"sha256:9af963c3be410898c6d3e2cb3c2b01ea7b798aadd344d71aa3bdc2b282f210b6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CLBQ4IPHFWYI2QZZUXE5522OHR/bundle.json","state_url":"https://pith.science/pith/CLBQ4IPHFWYI2QZZUXE5522OHR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CLBQ4IPHFWYI2QZZUXE5522OHR/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":"2026-06-09T03:49:31Z","links":{"resolver":"https://pith.science/pith/CLBQ4IPHFWYI2QZZUXE5522OHR","bundle":"https://pith.science/pith/CLBQ4IPHFWYI2QZZUXE5522OHR/bundle.json","state":"https://pith.science/pith/CLBQ4IPHFWYI2QZZUXE5522OHR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CLBQ4IPHFWYI2QZZUXE5522OHR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CLBQ4IPHFWYI2QZZUXE5522OHR","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":"413176ca18ee20c69ee4eec8e3bbadea1ee4253b86675f6a9d708c17ba7a103a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-02-12T20:26:25Z","title_canon_sha256":"bf557b8e532d1b583085c7820672649633c656e2f670ebe6a2b566a45792b8d5"},"schema_version":"1.0","source":{"id":"1602.04195","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.04195","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"arxiv_version","alias_value":"1602.04195v1","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.04195","created_at":"2026-05-18T01:08:42Z"},{"alias_kind":"pith_short_12","alias_value":"CLBQ4IPHFWYI","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CLBQ4IPHFWYI2QZZ","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CLBQ4IPH","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:9af963c3be410898c6d3e2cb3c2b01ea7b798aadd344d71aa3bdc2b282f210b6","target":"graph","created_at":"2026-05-18T01:08:42Z","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 describe the extension of the density matrix embedding theory (DMET) framework to coupled interacting fermion-boson systems. This provides a frequency-independent, entanglement embedding formalism to treat bulk fermion-boson problems. We illustrate the concepts within the context of the one-dimensional Hubbard-Holstein model, where the phonon bath states are obtained from the Schmidt decomposition of a self-consistently adjusted coherent state. We benchmark our results against accurate density matrix renormalization group calculations.","authors_text":"Barbara Sandhoefer, Garnet Kin-Lic Chan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-02-12T20:26:25Z","title":"Density matrix embedding theory for interacting electron-phonon systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.04195","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":"sha256:145d7b59a467c192be0e5f04fc07c069488b6ef5226557af6af8565f4e791d74","target":"record","created_at":"2026-05-18T01:08:42Z","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":"413176ca18ee20c69ee4eec8e3bbadea1ee4253b86675f6a9d708c17ba7a103a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-02-12T20:26:25Z","title_canon_sha256":"bf557b8e532d1b583085c7820672649633c656e2f670ebe6a2b566a45792b8d5"},"schema_version":"1.0","source":{"id":"1602.04195","kind":"arxiv","version":1}},"canonical_sha256":"12c30e21e72db08d4339a5c9deeb4e3c457a7f8617281989a179193cbb421ac7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12c30e21e72db08d4339a5c9deeb4e3c457a7f8617281989a179193cbb421ac7","first_computed_at":"2026-05-18T01:08:42.682099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:42.682099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T4s/E6qMEK0ws5tXTXT4aGh41J+3vAko0LREE0SO5EmCoc4efqWeFfIn2bPsq2TRzm9Vf3nDhLEoI9bgN/Q+BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:42.682569Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.04195","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:145d7b59a467c192be0e5f04fc07c069488b6ef5226557af6af8565f4e791d74","sha256:9af963c3be410898c6d3e2cb3c2b01ea7b798aadd344d71aa3bdc2b282f210b6"],"state_sha256":"d67f2207f37e940b5d0fa558fc88a144b635f4b4a858d298258845de6be130ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6yBWtn1dfHCrMLap4T2ceJsvUW0+vVJeRAQu9/PqZBXIJMDqI4EGUjMnanLzcjXUaQ3f9k24Ag1eS3ywmBD5Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T03:49:31.394253Z","bundle_sha256":"760ba1ed50564cfa4bd3d1245114a784ca9253097def04a0dddce0a599f46a56"}}