{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:U7H67MKM2TKPULHONECGZ3MOPS","short_pith_number":"pith:U7H67MKM","canonical_record":{"source":{"id":"cond-mat/9811089","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-11-06T11:26:40Z","cross_cats_sorted":[],"title_canon_sha256":"4b5a02a712db6eac767bc68b6b49460d00d39372dd402396b7481e084e45fea6","abstract_canon_sha256":"3844493ee49004f19f38c00a0fc1f188af4db192408fdced48dadddaff39539f"},"schema_version":"1.0"},"canonical_sha256":"a7cfefb14cd4d4fa2cee69046ced8e7cb11f505c1c20c54971c2f76763ea2ca0","source":{"kind":"arxiv","id":"cond-mat/9811089","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9811089","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9811089v1","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9811089","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"pith_short_12","alias_value":"U7H67MKM2TKP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"U7H67MKM2TKPULHO","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"U7H67MKM","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:U7H67MKM2TKPULHONECGZ3MOPS","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9811089","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-11-06T11:26:40Z","cross_cats_sorted":[],"title_canon_sha256":"4b5a02a712db6eac767bc68b6b49460d00d39372dd402396b7481e084e45fea6","abstract_canon_sha256":"3844493ee49004f19f38c00a0fc1f188af4db192408fdced48dadddaff39539f"},"schema_version":"1.0"},"canonical_sha256":"a7cfefb14cd4d4fa2cee69046ced8e7cb11f505c1c20c54971c2f76763ea2ca0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:17.013963Z","signature_b64":"3augvHr/THeTDHZ4ooM7VIP9uA3oMx2VH7ajJyHVM2A5CMFYbwUGCcu4v9agDjvwA3muSlQwzG823O7dIBEBDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7cfefb14cd4d4fa2cee69046ced8e7cb11f505c1c20c54971c2f76763ea2ca0","last_reissued_at":"2026-05-18T00:34:17.013356Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:17.013356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9811089","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":"2026-05-18T00:34:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eNE3kJq02wFzJbhiFdfKMYorUmRmMWA+lf6GvoGymnRQEjaM5P7gwsKWigvIt2HkVIMhTgOTd509EOf3kzC3Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:19:47.436957Z"},"content_sha256":"89f3ce0280021cac2e588e4c6e53c0a148096e6238724b09c04b1f12c38fcd8a","schema_version":"1.0","event_id":"sha256:89f3ce0280021cac2e588e4c6e53c0a148096e6238724b09c04b1f12c38fcd8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:U7H67MKM2TKPULHONECGZ3MOPS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lax pair formulation for a small-polaron chain with integrable boundaries","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Rudolf A. Roemer, Uwe Grimm, Xi-Wen Guan","submitted_at":"1998-11-06T11:26:40Z","abstract_excerpt":"Using a fermionic version of the Lax pair formulation, we construct an integrable small-polaron model with general open boundary conditions. The Lax pair and the boundary supermatrices $K_{\\pm}$ for the model are obtained. This provides a direct proof of the integrability of the model."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9811089","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":"2026-05-18T00:34:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z8C2fZtOIrhnd+N8dnqz0SeHSPBuwirHua0OpEdJAypFNN0Yvd4ANl+nyADgZ4gV/S9aG5OBX1hiXQVPmeWqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:19:47.437623Z"},"content_sha256":"c595b6f65570acd97b895bc3b269489a4bba0c8048e224049371f700f06e68ae","schema_version":"1.0","event_id":"sha256:c595b6f65570acd97b895bc3b269489a4bba0c8048e224049371f700f06e68ae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U7H67MKM2TKPULHONECGZ3MOPS/bundle.json","state_url":"https://pith.science/pith/U7H67MKM2TKPULHONECGZ3MOPS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U7H67MKM2TKPULHONECGZ3MOPS/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":"2026-05-27T19:19:47Z","links":{"resolver":"https://pith.science/pith/U7H67MKM2TKPULHONECGZ3MOPS","bundle":"https://pith.science/pith/U7H67MKM2TKPULHONECGZ3MOPS/bundle.json","state":"https://pith.science/pith/U7H67MKM2TKPULHONECGZ3MOPS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U7H67MKM2TKPULHONECGZ3MOPS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:U7H67MKM2TKPULHONECGZ3MOPS","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":"3844493ee49004f19f38c00a0fc1f188af4db192408fdced48dadddaff39539f","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-11-06T11:26:40Z","title_canon_sha256":"4b5a02a712db6eac767bc68b6b49460d00d39372dd402396b7481e084e45fea6"},"schema_version":"1.0","source":{"id":"cond-mat/9811089","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9811089","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9811089v1","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9811089","created_at":"2026-05-18T00:34:17Z"},{"alias_kind":"pith_short_12","alias_value":"U7H67MKM2TKP","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"U7H67MKM2TKPULHO","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"U7H67MKM","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:c595b6f65570acd97b895bc3b269489a4bba0c8048e224049371f700f06e68ae","target":"graph","created_at":"2026-05-18T00:34:17Z","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":"Using a fermionic version of the Lax pair formulation, we construct an integrable small-polaron model with general open boundary conditions. The Lax pair and the boundary supermatrices $K_{\\pm}$ for the model are obtained. This provides a direct proof of the integrability of the model.","authors_text":"Rudolf A. Roemer, Uwe Grimm, Xi-Wen Guan","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-11-06T11:26:40Z","title":"Lax pair formulation for a small-polaron chain with integrable boundaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9811089","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":"sha256:89f3ce0280021cac2e588e4c6e53c0a148096e6238724b09c04b1f12c38fcd8a","target":"record","created_at":"2026-05-18T00:34:17Z","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":"3844493ee49004f19f38c00a0fc1f188af4db192408fdced48dadddaff39539f","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-11-06T11:26:40Z","title_canon_sha256":"4b5a02a712db6eac767bc68b6b49460d00d39372dd402396b7481e084e45fea6"},"schema_version":"1.0","source":{"id":"cond-mat/9811089","kind":"arxiv","version":1}},"canonical_sha256":"a7cfefb14cd4d4fa2cee69046ced8e7cb11f505c1c20c54971c2f76763ea2ca0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7cfefb14cd4d4fa2cee69046ced8e7cb11f505c1c20c54971c2f76763ea2ca0","first_computed_at":"2026-05-18T00:34:17.013356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:17.013356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3augvHr/THeTDHZ4ooM7VIP9uA3oMx2VH7ajJyHVM2A5CMFYbwUGCcu4v9agDjvwA3muSlQwzG823O7dIBEBDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:17.013963Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9811089","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89f3ce0280021cac2e588e4c6e53c0a148096e6238724b09c04b1f12c38fcd8a","sha256:c595b6f65570acd97b895bc3b269489a4bba0c8048e224049371f700f06e68ae"],"state_sha256":"f5ac324a99da5bf14cf802ebe249fd737bead6842ef78a37828e98eb1df32e25"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dl0vW5D6P4hu02hGcge7TBOc4KB6KDDZok0e8VCK9eVC8uvqQPB9q1WK/4yf9xhJaldJlOmbMnVWelaEpjUECg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:19:47.441196Z","bundle_sha256":"7376d582363eac376626c1c44a806eab98d9d36dfc5abaa2cd7d7b180a6fa7de"}}