{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:OSWCNSDZEAHG5MGYZJVC7PM4U4","short_pith_number":"pith:OSWCNSDZ","canonical_record":{"source":{"id":"2011.07021","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2020-11-13T17:09:26Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"91cd657fd16ba5be3edee4f6988223c2aacc711e91f13b7c9ff2032d15ec2845","abstract_canon_sha256":"a590c8270ef70adec2250ef8b19b5dc66d682adb963394908f44793fb739883a"},"schema_version":"1.0"},"canonical_sha256":"74ac26c879200e6eb0d8ca6a2fbd9ca706dcb0bb6eb7b6b950901d5222e4cf18","source":{"kind":"arxiv","id":"2011.07021","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.07021","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"arxiv_version","alias_value":"2011.07021v2","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.07021","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"pith_short_12","alias_value":"OSWCNSDZEAHG","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"pith_short_16","alias_value":"OSWCNSDZEAHG5MGY","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"pith_short_8","alias_value":"OSWCNSDZ","created_at":"2026-07-05T02:30:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:OSWCNSDZEAHG5MGYZJVC7PM4U4","target":"record","payload":{"canonical_record":{"source":{"id":"2011.07021","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2020-11-13T17:09:26Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"91cd657fd16ba5be3edee4f6988223c2aacc711e91f13b7c9ff2032d15ec2845","abstract_canon_sha256":"a590c8270ef70adec2250ef8b19b5dc66d682adb963394908f44793fb739883a"},"schema_version":"1.0"},"canonical_sha256":"74ac26c879200e6eb0d8ca6a2fbd9ca706dcb0bb6eb7b6b950901d5222e4cf18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:30:42.838294Z","signature_b64":"cL5Aze307uydygAfkDo6/wgHp+5I11tPTq6LLu1IL4oTvQibdI0ABAh9HGS0bOiO887DXd2qOUVAUzPEoI/oBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74ac26c879200e6eb0d8ca6a2fbd9ca706dcb0bb6eb7b6b950901d5222e4cf18","last_reissued_at":"2026-07-05T02:30:42.837811Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:30:42.837811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.07021","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":"2026-07-05T02:30:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"soHx0KAobBbp2gfuPophi3U7l7VCrLi+apc88c+LfPhz7h/VIh+6fL/dPwbxW3TWEKQbNrczoohYGsfzMlB3Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T09:07:52.271509Z"},"content_sha256":"1a27694054621507f9be36e123eea4b5d772bf80a330aca859d4a9546456dda0","schema_version":"1.0","event_id":"sha256:1a27694054621507f9be36e123eea4b5d772bf80a330aca859d4a9546456dda0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:OSWCNSDZEAHG5MGYZJVC7PM4U4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cascade of replica bands in flat band systems: predictions for twisted bilayer graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Alex Aperis, Fabian Schrodi, Peter M. Oppeneer","submitted_at":"2020-11-13T17:09:26Z","abstract_excerpt":"We investigate the effect of electron-phonon interactions (EPI) in systems exhibiting one or more flat electron bands close to the Fermi level and a comparatively large phonon energy scale. After solving the self-consistent full-bandwidth Eliashberg equations, we compute Angular Resolved Photo Emission Spectroscopy and Scanning Tunneling Spectroscopy/Microscopy spectra. We obtain a sequence of quasiparticle replica bands in both the normal and superconducting states that originate from frequency dependent features of the electron mass renormalization function. We show that these replica bands "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.07021","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2011.07021/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":"2026-07-05T02:30:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZTijU3fljDxeBE1aR2af+skExyOF3UKan0zqIjRK0X8xZQFdVCKx6t52ry5qb1tDRsAg6Pd1a43Am0jwjyk4Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T09:07:52.272139Z"},"content_sha256":"357570d46df89ce64fd20abe78d82e8a024645f5251aa1b8103c434986efa63e","schema_version":"1.0","event_id":"sha256:357570d46df89ce64fd20abe78d82e8a024645f5251aa1b8103c434986efa63e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4/bundle.json","state_url":"https://pith.science/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4/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":"2026-08-14T09:07:52Z","links":{"resolver":"https://pith.science/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4","bundle":"https://pith.science/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4/bundle.json","state":"https://pith.science/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OSWCNSDZEAHG5MGYZJVC7PM4U4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:OSWCNSDZEAHG5MGYZJVC7PM4U4","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":"a590c8270ef70adec2250ef8b19b5dc66d682adb963394908f44793fb739883a","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2020-11-13T17:09:26Z","title_canon_sha256":"91cd657fd16ba5be3edee4f6988223c2aacc711e91f13b7c9ff2032d15ec2845"},"schema_version":"1.0","source":{"id":"2011.07021","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.07021","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"arxiv_version","alias_value":"2011.07021v2","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.07021","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"pith_short_12","alias_value":"OSWCNSDZEAHG","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"pith_short_16","alias_value":"OSWCNSDZEAHG5MGY","created_at":"2026-07-05T02:30:42Z"},{"alias_kind":"pith_short_8","alias_value":"OSWCNSDZ","created_at":"2026-07-05T02:30:42Z"}],"graph_snapshots":[{"event_id":"sha256:357570d46df89ce64fd20abe78d82e8a024645f5251aa1b8103c434986efa63e","target":"graph","created_at":"2026-07-05T02:30:42Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2011.07021/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the effect of electron-phonon interactions (EPI) in systems exhibiting one or more flat electron bands close to the Fermi level and a comparatively large phonon energy scale. After solving the self-consistent full-bandwidth Eliashberg equations, we compute Angular Resolved Photo Emission Spectroscopy and Scanning Tunneling Spectroscopy/Microscopy spectra. We obtain a sequence of quasiparticle replica bands in both the normal and superconducting states that originate from frequency dependent features of the electron mass renormalization function. We show that these replica bands ","authors_text":"Alex Aperis, Fabian Schrodi, Peter M. Oppeneer","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2020-11-13T17:09:26Z","title":"Cascade of replica bands in flat band systems: predictions for twisted bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.07021","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":"sha256:1a27694054621507f9be36e123eea4b5d772bf80a330aca859d4a9546456dda0","target":"record","created_at":"2026-07-05T02:30:42Z","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":"a590c8270ef70adec2250ef8b19b5dc66d682adb963394908f44793fb739883a","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2020-11-13T17:09:26Z","title_canon_sha256":"91cd657fd16ba5be3edee4f6988223c2aacc711e91f13b7c9ff2032d15ec2845"},"schema_version":"1.0","source":{"id":"2011.07021","kind":"arxiv","version":2}},"canonical_sha256":"74ac26c879200e6eb0d8ca6a2fbd9ca706dcb0bb6eb7b6b950901d5222e4cf18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74ac26c879200e6eb0d8ca6a2fbd9ca706dcb0bb6eb7b6b950901d5222e4cf18","first_computed_at":"2026-07-05T02:30:42.837811Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:30:42.837811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cL5Aze307uydygAfkDo6/wgHp+5I11tPTq6LLu1IL4oTvQibdI0ABAh9HGS0bOiO887DXd2qOUVAUzPEoI/oBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:30:42.838294Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.07021","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a27694054621507f9be36e123eea4b5d772bf80a330aca859d4a9546456dda0","sha256:357570d46df89ce64fd20abe78d82e8a024645f5251aa1b8103c434986efa63e"],"state_sha256":"7300d50236d3b368bcf62c07b7479b220c2fefb8ad84eb410273a0d3b9c6bb35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KqskpX9qz1e2bNRTyQiyToVIqQCWvkNWH+/Fqt56gZlcC35CMvE53WcOt5pl107D9y+QazFqJlMme7tM9UXfCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T09:07:52.280277Z","bundle_sha256":"1778984e07f689c3b3171a46a56041dcc041cad05e94979642878f2454ec056a"}}