{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FKZU4B74RQMCGRL4W63QXMAVHG","short_pith_number":"pith:FKZU4B74","canonical_record":{"source":{"id":"1805.06109","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-16T03:18:16Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"837619c946b6c5e5176902c970d12fc7bcd54aa18c1766fb8842044abd1c0b8b","abstract_canon_sha256":"357ab6e56582ac3ec59c5e4de947edfbe89976819b8021128a99347c0fa482e1"},"schema_version":"1.0"},"canonical_sha256":"2ab34e07fc8c1823457cb7b70bb015399640d0bbbf016f50d206456784ed6227","source":{"kind":"arxiv","id":"1805.06109","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.06109","created_at":"2026-05-17T23:47:44Z"},{"alias_kind":"arxiv_version","alias_value":"1805.06109v2","created_at":"2026-05-17T23:47:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.06109","created_at":"2026-05-17T23:47:44Z"},{"alias_kind":"pith_short_12","alias_value":"FKZU4B74RQMC","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"FKZU4B74RQMCGRL4","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"FKZU4B74","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FKZU4B74RQMCGRL4W63QXMAVHG","target":"record","payload":{"canonical_record":{"source":{"id":"1805.06109","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-16T03:18:16Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"837619c946b6c5e5176902c970d12fc7bcd54aa18c1766fb8842044abd1c0b8b","abstract_canon_sha256":"357ab6e56582ac3ec59c5e4de947edfbe89976819b8021128a99347c0fa482e1"},"schema_version":"1.0"},"canonical_sha256":"2ab34e07fc8c1823457cb7b70bb015399640d0bbbf016f50d206456784ed6227","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:44.320046Z","signature_b64":"dZNBn+H52ror7+U03pC8U+al0kkggvrMjiXnIgznsRNK/o6RHr7XM5n3cGjStOJQfi9bDwO47cQb1V/y/uNBCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ab34e07fc8c1823457cb7b70bb015399640d0bbbf016f50d206456784ed6227","last_reissued_at":"2026-05-17T23:47:44.319590Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:44.319590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.06109","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":"2026-05-17T23:47:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oEKqqiAiA1QXTMZkRbhG05NU/7M8grlULcGApGRUH6bf1jXFDy0UTptxxRUWtptLeG5igLyYHYJ8+G3YPN//Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:49:22.653797Z"},"content_sha256":"b306a9cfbf8ea689a6571a0bb600683a02eacaa9e5c09b93232b271c4b9c9c7d","schema_version":"1.0","event_id":"sha256:b306a9cfbf8ea689a6571a0bb600683a02eacaa9e5c09b93232b271c4b9c9c7d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FKZU4B74RQMCGRL4W63QXMAVHG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Light Bipolarons Stabilized by Peierls Electron-Phonon Coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"John Sous, Mona Berciu, Monodeep Chakraborty, Roman V. Krems","submitted_at":"2018-05-16T03:18:16Z","abstract_excerpt":"It is widely accepted that phonon-mediated high-temperature superconductivity is impossible at ambient pressure, because of the very large effective masses of polarons/bipolarons at strong electron-phonon coupling. Here we challenge this belief by showing that strongly bound yet very light bipolarons appear for strong Peierls/Su-Schrieffer-Heeger interaction. These bipolarons also exhibit many other unconventional properties, e.g. at strong coupling there are two low-energy bipolaron bands that are stable against strong on-site Hubbard repulsion. Using numerical simulations and analytical argu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.06109","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":"2026-05-17T23:47:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JL+efLpEcn2mSI/UyqrHXeAm3JHa6mg0LWTEmLhURnfka+C/YLxh3cZpLnC9a+22ElSJXfZtACnkpg8g69K6AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:49:22.654155Z"},"content_sha256":"f321b762c850e8c4a81ba023f6d9091ccffe2ae7ded7d1513d823886332fbe25","schema_version":"1.0","event_id":"sha256:f321b762c850e8c4a81ba023f6d9091ccffe2ae7ded7d1513d823886332fbe25"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FKZU4B74RQMCGRL4W63QXMAVHG/bundle.json","state_url":"https://pith.science/pith/FKZU4B74RQMCGRL4W63QXMAVHG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FKZU4B74RQMCGRL4W63QXMAVHG/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":"2026-05-28T11:49:22Z","links":{"resolver":"https://pith.science/pith/FKZU4B74RQMCGRL4W63QXMAVHG","bundle":"https://pith.science/pith/FKZU4B74RQMCGRL4W63QXMAVHG/bundle.json","state":"https://pith.science/pith/FKZU4B74RQMCGRL4W63QXMAVHG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FKZU4B74RQMCGRL4W63QXMAVHG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FKZU4B74RQMCGRL4W63QXMAVHG","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":"357ab6e56582ac3ec59c5e4de947edfbe89976819b8021128a99347c0fa482e1","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-16T03:18:16Z","title_canon_sha256":"837619c946b6c5e5176902c970d12fc7bcd54aa18c1766fb8842044abd1c0b8b"},"schema_version":"1.0","source":{"id":"1805.06109","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.06109","created_at":"2026-05-17T23:47:44Z"},{"alias_kind":"arxiv_version","alias_value":"1805.06109v2","created_at":"2026-05-17T23:47:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.06109","created_at":"2026-05-17T23:47:44Z"},{"alias_kind":"pith_short_12","alias_value":"FKZU4B74RQMC","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"FKZU4B74RQMCGRL4","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"FKZU4B74","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:f321b762c850e8c4a81ba023f6d9091ccffe2ae7ded7d1513d823886332fbe25","target":"graph","created_at":"2026-05-17T23:47:44Z","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":"It is widely accepted that phonon-mediated high-temperature superconductivity is impossible at ambient pressure, because of the very large effective masses of polarons/bipolarons at strong electron-phonon coupling. Here we challenge this belief by showing that strongly bound yet very light bipolarons appear for strong Peierls/Su-Schrieffer-Heeger interaction. These bipolarons also exhibit many other unconventional properties, e.g. at strong coupling there are two low-energy bipolaron bands that are stable against strong on-site Hubbard repulsion. Using numerical simulations and analytical argu","authors_text":"John Sous, Mona Berciu, Monodeep Chakraborty, Roman V. Krems","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-16T03:18:16Z","title":"Light Bipolarons Stabilized by Peierls Electron-Phonon Coupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.06109","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:b306a9cfbf8ea689a6571a0bb600683a02eacaa9e5c09b93232b271c4b9c9c7d","target":"record","created_at":"2026-05-17T23:47:44Z","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":"357ab6e56582ac3ec59c5e4de947edfbe89976819b8021128a99347c0fa482e1","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-16T03:18:16Z","title_canon_sha256":"837619c946b6c5e5176902c970d12fc7bcd54aa18c1766fb8842044abd1c0b8b"},"schema_version":"1.0","source":{"id":"1805.06109","kind":"arxiv","version":2}},"canonical_sha256":"2ab34e07fc8c1823457cb7b70bb015399640d0bbbf016f50d206456784ed6227","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ab34e07fc8c1823457cb7b70bb015399640d0bbbf016f50d206456784ed6227","first_computed_at":"2026-05-17T23:47:44.319590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:44.319590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dZNBn+H52ror7+U03pC8U+al0kkggvrMjiXnIgznsRNK/o6RHr7XM5n3cGjStOJQfi9bDwO47cQb1V/y/uNBCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:44.320046Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.06109","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b306a9cfbf8ea689a6571a0bb600683a02eacaa9e5c09b93232b271c4b9c9c7d","sha256:f321b762c850e8c4a81ba023f6d9091ccffe2ae7ded7d1513d823886332fbe25"],"state_sha256":"98a058c65454184f2f2dbc6d14dc644e7d9fe8fcf9152946b43c63c6714be9e5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O3skOHrtoQ+6TQyaw8XRmAfuKbcRUfGXF6HOIAvPrccVOXIAzMz2nQJW5VQqzpdGW9XPI0tztPhXT1Rj88x+AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:49:22.656217Z","bundle_sha256":"75ca5e9d08b2519355be86d42d8ba2b14f6d550eae46d8888606649a7ca15109"}}