{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:3IWC6SBDR74DTYS4ZXPCSJ2TWX","short_pith_number":"pith:3IWC6SBD","canonical_record":{"source":{"id":"1407.6774","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-07-25T01:59:43Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"e259ba4bf7190be1c5703d1d1de6207e9e3e3ce4b393b9d1a1e33d5b1a9621fe","abstract_canon_sha256":"49e9e9386b5e15bebf37a8ee9774e6f5a42adb2f85b53bb985cd2bb5d46a8f45"},"schema_version":"1.0"},"canonical_sha256":"da2c2f48238ff839e25ccdde292753b5c251d4edbb573c3fe6f2a21f305eca79","source":{"kind":"arxiv","id":"1407.6774","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6774","created_at":"2026-05-18T02:43:44Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6774v1","created_at":"2026-05-18T02:43:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6774","created_at":"2026-05-18T02:43:44Z"},{"alias_kind":"pith_short_12","alias_value":"3IWC6SBDR74D","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3IWC6SBDR74DTYS4","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3IWC6SBD","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:3IWC6SBDR74DTYS4ZXPCSJ2TWX","target":"record","payload":{"canonical_record":{"source":{"id":"1407.6774","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-07-25T01:59:43Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"e259ba4bf7190be1c5703d1d1de6207e9e3e3ce4b393b9d1a1e33d5b1a9621fe","abstract_canon_sha256":"49e9e9386b5e15bebf37a8ee9774e6f5a42adb2f85b53bb985cd2bb5d46a8f45"},"schema_version":"1.0"},"canonical_sha256":"da2c2f48238ff839e25ccdde292753b5c251d4edbb573c3fe6f2a21f305eca79","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:44.988627Z","signature_b64":"6aM/F8+LI/LmYkKuELEv/u2Rsyuif6d/whB1/NdMYMCSlfMbwZygwKq14pp0oQcvImezhVTwUKPzN1bNM4L3DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da2c2f48238ff839e25ccdde292753b5c251d4edbb573c3fe6f2a21f305eca79","last_reissued_at":"2026-05-18T02:43:44.988180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:44.988180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.6774","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":"2026-05-18T02:43:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6U2Yh9QypyTtsqWAaVqW0aXyi/qfNWtuTyOV8UxKkPfL5TM5Ii82S3sMaETfIM7pBRWW9Zm0PlDEiRbX7JNRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:26:22.249726Z"},"content_sha256":"f810bcd384a21fce8a77b132016fbff4c676b016fae749dbb27fff514c5264c3","schema_version":"1.0","event_id":"sha256:f810bcd384a21fce8a77b132016fbff4c676b016fae749dbb27fff514c5264c3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:3IWC6SBDR74DTYS4ZXPCSJ2TWX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Raman scattering investigation of the electron-phonon coupling in superconducting Nd(O,F)BiS$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"C. S. Lian, H. Ding, J. T. Wang, N. L. Wang, P. Richard, S. F. Wu, S. M. Nie, X. B. Wang","submitted_at":"2014-07-25T01:59:43Z","abstract_excerpt":"We have performed polarized Raman scattering measurements on the newly discovered superconductor Nd(O,F)BiS$_2$ ($T_c = 4$ K). We observe 2 Raman active modes, with frequencies in accordance with first-principles calculations. One A$_{1g}$ phonon mode at 112.4 cm$^{-1}$ exhibits a Fano line shape due to electron-phonon coupling. We find a resonance for this mode at 2.45 eV excitation energy. We estimate a 0.68 contribution of this mode to the electron-phonon coupling constant $\\lambda$. Our Raman results suggest that the BiS$_2$-based superconductors are possibly phonon-mediated BCS supercondu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6774","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":"2026-05-18T02:43:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T2UiAVJAu61hTD6NDwPty243FSPd2nqQi9lwYXxQANODfUyDG57i5IkMT0SFVyQIM9CloRgx3kWQP0lCju3JAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:26:22.250494Z"},"content_sha256":"47a57aa5dee1e47fb275c75ffc324fc1e8504f4aa9b31b7e0fa201f2c91468ba","schema_version":"1.0","event_id":"sha256:47a57aa5dee1e47fb275c75ffc324fc1e8504f4aa9b31b7e0fa201f2c91468ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX/bundle.json","state_url":"https://pith.science/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX/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":"2026-05-25T15:26:22Z","links":{"resolver":"https://pith.science/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX","bundle":"https://pith.science/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX/bundle.json","state":"https://pith.science/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3IWC6SBDR74DTYS4ZXPCSJ2TWX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:3IWC6SBDR74DTYS4ZXPCSJ2TWX","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":"49e9e9386b5e15bebf37a8ee9774e6f5a42adb2f85b53bb985cd2bb5d46a8f45","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-07-25T01:59:43Z","title_canon_sha256":"e259ba4bf7190be1c5703d1d1de6207e9e3e3ce4b393b9d1a1e33d5b1a9621fe"},"schema_version":"1.0","source":{"id":"1407.6774","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.6774","created_at":"2026-05-18T02:43:44Z"},{"alias_kind":"arxiv_version","alias_value":"1407.6774v1","created_at":"2026-05-18T02:43:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.6774","created_at":"2026-05-18T02:43:44Z"},{"alias_kind":"pith_short_12","alias_value":"3IWC6SBDR74D","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"3IWC6SBDR74DTYS4","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"3IWC6SBD","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:47a57aa5dee1e47fb275c75ffc324fc1e8504f4aa9b31b7e0fa201f2c91468ba","target":"graph","created_at":"2026-05-18T02:43:44Z","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":"We have performed polarized Raman scattering measurements on the newly discovered superconductor Nd(O,F)BiS$_2$ ($T_c = 4$ K). We observe 2 Raman active modes, with frequencies in accordance with first-principles calculations. One A$_{1g}$ phonon mode at 112.4 cm$^{-1}$ exhibits a Fano line shape due to electron-phonon coupling. We find a resonance for this mode at 2.45 eV excitation energy. We estimate a 0.68 contribution of this mode to the electron-phonon coupling constant $\\lambda$. Our Raman results suggest that the BiS$_2$-based superconductors are possibly phonon-mediated BCS supercondu","authors_text":"C. S. Lian, H. Ding, J. T. Wang, N. L. Wang, P. Richard, S. F. Wu, S. M. Nie, X. B. Wang","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-07-25T01:59:43Z","title":"Raman scattering investigation of the electron-phonon coupling in superconducting Nd(O,F)BiS$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6774","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:f810bcd384a21fce8a77b132016fbff4c676b016fae749dbb27fff514c5264c3","target":"record","created_at":"2026-05-18T02:43:44Z","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":"49e9e9386b5e15bebf37a8ee9774e6f5a42adb2f85b53bb985cd2bb5d46a8f45","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-07-25T01:59:43Z","title_canon_sha256":"e259ba4bf7190be1c5703d1d1de6207e9e3e3ce4b393b9d1a1e33d5b1a9621fe"},"schema_version":"1.0","source":{"id":"1407.6774","kind":"arxiv","version":1}},"canonical_sha256":"da2c2f48238ff839e25ccdde292753b5c251d4edbb573c3fe6f2a21f305eca79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da2c2f48238ff839e25ccdde292753b5c251d4edbb573c3fe6f2a21f305eca79","first_computed_at":"2026-05-18T02:43:44.988180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:44.988180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6aM/F8+LI/LmYkKuELEv/u2Rsyuif6d/whB1/NdMYMCSlfMbwZygwKq14pp0oQcvImezhVTwUKPzN1bNM4L3DA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:44.988627Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.6774","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f810bcd384a21fce8a77b132016fbff4c676b016fae749dbb27fff514c5264c3","sha256:47a57aa5dee1e47fb275c75ffc324fc1e8504f4aa9b31b7e0fa201f2c91468ba"],"state_sha256":"84466787eabebe597826efd13d3203ddaf6f9c6b062e1309320fef9bd35b232a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0K3ywu694xzrcxyuR7buD42NyFz8nLk7hCW0l57wNv1BNjtKmxrxGrXfHeTdIwa7x66POxiu45g6cLsQO4sXAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:26:22.254588Z","bundle_sha256":"65fa6704f158efecb7183be744eaf40b3807b475cd5b9e63a66988df86a397cc"}}