{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:TV6SOOV5V3MCKIGVNNLPJULSME","short_pith_number":"pith:TV6SOOV5","canonical_record":{"source":{"id":"2605.14225","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-14T00:41:54Z","cross_cats_sorted":[],"title_canon_sha256":"471ef49e83b683345f92f4676a5f7a34c1d76bfedff60c82becd246ec90235cc","abstract_canon_sha256":"c2bc533b1cf5269b0102c8407c21a053c46ab65f3618dc70cb71c90dc16e689a"},"schema_version":"1.0"},"canonical_sha256":"9d7d273abdaed82520d56b56f4d1726117512a558d1e7e2d8b4669d071746a0d","source":{"kind":"arxiv","id":"2605.14225","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.14225","created_at":"2026-05-17T23:39:10Z"},{"alias_kind":"arxiv_version","alias_value":"2605.14225v1","created_at":"2026-05-17T23:39:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.14225","created_at":"2026-05-17T23:39:10Z"},{"alias_kind":"pith_short_12","alias_value":"TV6SOOV5V3MC","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"TV6SOOV5V3MCKIGV","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"TV6SOOV5","created_at":"2026-05-18T12:33:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:TV6SOOV5V3MCKIGVNNLPJULSME","target":"record","payload":{"canonical_record":{"source":{"id":"2605.14225","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-14T00:41:54Z","cross_cats_sorted":[],"title_canon_sha256":"471ef49e83b683345f92f4676a5f7a34c1d76bfedff60c82becd246ec90235cc","abstract_canon_sha256":"c2bc533b1cf5269b0102c8407c21a053c46ab65f3618dc70cb71c90dc16e689a"},"schema_version":"1.0"},"canonical_sha256":"9d7d273abdaed82520d56b56f4d1726117512a558d1e7e2d8b4669d071746a0d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:10.788161Z","signature_b64":"8ZF1JRiG+oEOCA2E6z3BBQeclA+C/zEgDBRqEKzmc2GTWCuzuhtRP22ZrOSfGDwmycISaRg3Igo2vPbfNFCjBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d7d273abdaed82520d56b56f4d1726117512a558d1e7e2d8b4669d071746a0d","last_reissued_at":"2026-05-17T23:39:10.787723Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:10.787723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.14225","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":"2026-05-17T23:39:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xcA/0VCyN2B2dK/pnDObaTQxmF/dwNyOnyw65lngCaZ1t52VZKJ0KhqOzA2UJuW3HZph93tbVvTdAcO1eaWyBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:25:28.784500Z"},"content_sha256":"6c56a6dae0e452d4acc557ec2c9c59bbf2dde4d2b8b00ec6eb2a64159291c1b6","schema_version":"1.0","event_id":"sha256:6c56a6dae0e452d4acc557ec2c9c59bbf2dde4d2b8b00ec6eb2a64159291c1b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:TV6SOOV5V3MCKIGVNNLPJULSME","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The thermopower properties of interacting systems","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"Additional interactions beyond on-site repulsion enhance the Seebeck coefficient and produce multiple anomalous sign changes with doping.","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"M. A. Habitzreuter, Natanael C. Costa, Rodrigo A. Fontenele, Thereza Paiva, Willdauany C. de Freitas da Silva","submitted_at":"2026-05-14T00:41:54Z","abstract_excerpt":"The quest for efficient devices has fueled research in thermoelectric materials. In these materials, the goal is to maximize the Figure of Merit $ZT$. One of the components of this quantity is the Seebeck coefficient, which measures the voltage generated in response to a temperature gradient. Recent studies have revealed that strong electronic correlations can enhance the Seebeck coefficient, leading to anomalous behavior near half-filling. However, the impact of interactions beyond the on-site Hubbard remains mostly unexplored. In this work, we investigate the Seebeck coefficient considering "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We find that additional interaction scales can enhance the Seebeck coefficient, while also leading to multiple anomalous changes of sign as a function of doping. We connect these changes of sign in the Seebeck coefficient with a restructuring of the Fermi surface and a change in its topology.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The numerical or analytic method used to compute the Seebeck coefficient from the extended interacting Hamiltonians accurately captures the low-energy physics without uncontrolled approximations or finite-size artifacts.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Additional interactions beyond on-site repulsion enhance the Seebeck coefficient and produce multiple anomalous sign changes with doping.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"d2c50232d28a9a0e37e018aa001b6852132615363f0b40db4a85e41e239d8942"},"source":{"id":"2605.14225","kind":"arxiv","version":1},"verdict":{"id":"9f7cf549-bd8c-4606-b3f9-9dd968b4ca0f","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T02:41:00.448924Z","strongest_claim":"We find that additional interaction scales can enhance the Seebeck coefficient, while also leading to multiple anomalous changes of sign as a function of doping. We connect these changes of sign in the Seebeck coefficient with a restructuring of the Fermi surface and a change in its topology.","one_line_summary":"Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The numerical or analytic method used to compute the Seebeck coefficient from the extended interacting Hamiltonians accurately captures the low-energy physics without uncontrolled approximations or finite-size artifacts.","pith_extraction_headline":"Additional interactions beyond on-site repulsion enhance the Seebeck coefficient and produce multiple anomalous sign changes with doping."},"references":{"count":65,"sample":[{"doi":"","year":null,"title":"Around half-filling We now discuss the effects of near-neighbor interac- tions on the thermoelectric properties. To this end, we examine the extended Hubbard model (EHM) [32, 44], which describes ferm","work_id":"281b71d2-7470-4c3a-9d5f-a6d9d181fd66","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"3 and 4 show an additional sign change of the Seebeck coefficient near quarter-filling, which is robust forT /t≲1","work_id":"20bac829-b9d0-4424-bbc2-dd10bd523dbc","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Since the con- nection between density plateaus and entropy peaks was already highlighted in the previous Hamiltonians, here we show only the Seebeck coefficient in Figure 9","work_id":"7464dc9c-f37e-471d-8d2b-92aa32a7da77","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2023,"title":"Around quarter-filling We now turn our attention to the quarter-filling regime, in which the ground state is less clear. Figure 9 (a) shows that, as ∆ increases for fixedU/t= 10, the Seebeck response ","work_id":"e75c6f63-318c-45b0-8a0c-ad0121940137","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2005,"title":"D. M. Rowe,Thermoelectrics handbook: macro to nano (CRC press, 2005)","work_id":"29e3c499-4f16-41b7-87ce-603a47ded388","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":65,"snapshot_sha256":"4e184b6f33c187212e4dc3861c06bc12e2925a4329808f111989359a4f38f05d","internal_anchors":1},"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":"9f7cf549-bd8c-4606-b3f9-9dd968b4ca0f"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eIe6KxIadmmi6i7TaxNKzvF6rNH2c19jpuAwx98QsMIwVsim4RDPphmq33VCNMsdYr2NBaGHK/P69OhzujuoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T07:25:28.785621Z"},"content_sha256":"4def2edb40d08c930b86a0161034ab829dfdecab0eb11949f590e1601af26d9b","schema_version":"1.0","event_id":"sha256:4def2edb40d08c930b86a0161034ab829dfdecab0eb11949f590e1601af26d9b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TV6SOOV5V3MCKIGVNNLPJULSME/bundle.json","state_url":"https://pith.science/pith/TV6SOOV5V3MCKIGVNNLPJULSME/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TV6SOOV5V3MCKIGVNNLPJULSME/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":"2026-05-25T07:25:28Z","links":{"resolver":"https://pith.science/pith/TV6SOOV5V3MCKIGVNNLPJULSME","bundle":"https://pith.science/pith/TV6SOOV5V3MCKIGVNNLPJULSME/bundle.json","state":"https://pith.science/pith/TV6SOOV5V3MCKIGVNNLPJULSME/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TV6SOOV5V3MCKIGVNNLPJULSME/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:TV6SOOV5V3MCKIGVNNLPJULSME","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":"c2bc533b1cf5269b0102c8407c21a053c46ab65f3618dc70cb71c90dc16e689a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-14T00:41:54Z","title_canon_sha256":"471ef49e83b683345f92f4676a5f7a34c1d76bfedff60c82becd246ec90235cc"},"schema_version":"1.0","source":{"id":"2605.14225","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.14225","created_at":"2026-05-17T23:39:10Z"},{"alias_kind":"arxiv_version","alias_value":"2605.14225v1","created_at":"2026-05-17T23:39:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.14225","created_at":"2026-05-17T23:39:10Z"},{"alias_kind":"pith_short_12","alias_value":"TV6SOOV5V3MC","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"TV6SOOV5V3MCKIGV","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"TV6SOOV5","created_at":"2026-05-18T12:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:4def2edb40d08c930b86a0161034ab829dfdecab0eb11949f590e1601af26d9b","target":"graph","created_at":"2026-05-17T23:39:10Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"We find that additional interaction scales can enhance the Seebeck coefficient, while also leading to multiple anomalous changes of sign as a function of doping. We connect these changes of sign in the Seebeck coefficient with a restructuring of the Fermi surface and a change in its topology."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The numerical or analytic method used to compute the Seebeck coefficient from the extended interacting Hamiltonians accurately captures the low-energy physics without uncontrolled approximations or finite-size artifacts."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Additional interactions beyond on-site repulsion enhance the Seebeck coefficient and produce multiple anomalous sign changes with doping."}],"snapshot_sha256":"d2c50232d28a9a0e37e018aa001b6852132615363f0b40db4a85e41e239d8942"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The quest for efficient devices has fueled research in thermoelectric materials. In these materials, the goal is to maximize the Figure of Merit $ZT$. One of the components of this quantity is the Seebeck coefficient, which measures the voltage generated in response to a temperature gradient. Recent studies have revealed that strong electronic correlations can enhance the Seebeck coefficient, leading to anomalous behavior near half-filling. However, the impact of interactions beyond the on-site Hubbard remains mostly unexplored. In this work, we investigate the Seebeck coefficient considering ","authors_text":"M. A. Habitzreuter, Natanael C. Costa, Rodrigo A. Fontenele, Thereza Paiva, Willdauany C. de Freitas da Silva","cross_cats":[],"headline":"Additional interactions beyond on-site repulsion enhance the Seebeck coefficient and produce multiple anomalous sign changes with doping.","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-14T00:41:54Z","title":"The thermopower properties of interacting systems"},"references":{"count":65,"internal_anchors":1,"resolved_work":65,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"Around half-filling We now discuss the effects of near-neighbor interac- tions on the thermoelectric properties. To this end, we examine the extended Hubbard model (EHM) [32, 44], which describes ferm","work_id":"281b71d2-7470-4c3a-9d5f-a6d9d181fd66","year":null},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"3 and 4 show an additional sign change of the Seebeck coefficient near quarter-filling, which is robust forT /t≲1","work_id":"20bac829-b9d0-4424-bbc2-dd10bd523dbc","year":null},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"Since the con- nection between density plateaus and entropy peaks was already highlighted in the previous Hamiltonians, here we show only the Seebeck coefficient in Figure 9","work_id":"7464dc9c-f37e-471d-8d2b-92aa32a7da77","year":null},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"Around quarter-filling We now turn our attention to the quarter-filling regime, in which the ground state is less clear. Figure 9 (a) shows that, as ∆ increases for fixedU/t= 10, the Seebeck response ","work_id":"e75c6f63-318c-45b0-8a0c-ad0121940137","year":2023},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"D. M. Rowe,Thermoelectrics handbook: macro to nano (CRC press, 2005)","work_id":"29e3c499-4f16-41b7-87ce-603a47ded388","year":2005}],"snapshot_sha256":"4e184b6f33c187212e4dc3861c06bc12e2925a4329808f111989359a4f38f05d"},"source":{"id":"2605.14225","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-15T02:41:00.448924Z","id":"9f7cf549-bd8c-4606-b3f9-9dd968b4ca0f","model_set":{"reader":"grok-4.3"},"one_line_summary":"Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Additional interactions beyond on-site repulsion enhance the Seebeck coefficient and produce multiple anomalous sign changes with doping.","strongest_claim":"We find that additional interaction scales can enhance the Seebeck coefficient, while also leading to multiple anomalous changes of sign as a function of doping. We connect these changes of sign in the Seebeck coefficient with a restructuring of the Fermi surface and a change in its topology.","weakest_assumption":"The numerical or analytic method used to compute the Seebeck coefficient from the extended interacting Hamiltonians accurately captures the low-energy physics without uncontrolled approximations or finite-size artifacts."}},"verdict_id":"9f7cf549-bd8c-4606-b3f9-9dd968b4ca0f"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6c56a6dae0e452d4acc557ec2c9c59bbf2dde4d2b8b00ec6eb2a64159291c1b6","target":"record","created_at":"2026-05-17T23:39:10Z","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":"c2bc533b1cf5269b0102c8407c21a053c46ab65f3618dc70cb71c90dc16e689a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-14T00:41:54Z","title_canon_sha256":"471ef49e83b683345f92f4676a5f7a34c1d76bfedff60c82becd246ec90235cc"},"schema_version":"1.0","source":{"id":"2605.14225","kind":"arxiv","version":1}},"canonical_sha256":"9d7d273abdaed82520d56b56f4d1726117512a558d1e7e2d8b4669d071746a0d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d7d273abdaed82520d56b56f4d1726117512a558d1e7e2d8b4669d071746a0d","first_computed_at":"2026-05-17T23:39:10.787723Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:10.787723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8ZF1JRiG+oEOCA2E6z3BBQeclA+C/zEgDBRqEKzmc2GTWCuzuhtRP22ZrOSfGDwmycISaRg3Igo2vPbfNFCjBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:10.788161Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.14225","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c56a6dae0e452d4acc557ec2c9c59bbf2dde4d2b8b00ec6eb2a64159291c1b6","sha256:4def2edb40d08c930b86a0161034ab829dfdecab0eb11949f590e1601af26d9b"],"state_sha256":"f32076e11980d6bf8e48ef44923f0946405f9be4fa4a527372ce5203efbbdffa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hX15/kBv0uTrIKXdKUWmFsx4uywhLj7ATx2n1KpAwZijdS5t5w9m00lEQ4umsTZfsjop20tjK6lqbOzFkWizDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T07:25:28.791405Z","bundle_sha256":"21200754789b16b29c4d061db6940f3562f89444c9277611ef51fc5158c0bcda"}}