{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:2RX4EMLLJERTSIX4JXQLLNEHVL","short_pith_number":"pith:2RX4EMLL","canonical_record":{"source":{"id":"0908.4364","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-08-29T21:27:59Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"37846b2af238bcfe2916bd69f1f6c45aa6c51283da00614bdacccd837cac480c","abstract_canon_sha256":"448c0713fa367caa14ac61992b914dbd683d8d41fcc6b6c0dce6d9303fb3e72e"},"schema_version":"1.0"},"canonical_sha256":"d46fc2316b49233922fc4de0b5b487aae3291db34aa3e5d78898ec60c02e2ab3","source":{"kind":"arxiv","id":"0908.4364","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.4364","created_at":"2026-05-18T02:12:13Z"},{"alias_kind":"arxiv_version","alias_value":"0908.4364v1","created_at":"2026-05-18T02:12:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.4364","created_at":"2026-05-18T02:12:13Z"},{"alias_kind":"pith_short_12","alias_value":"2RX4EMLLJERT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2RX4EMLLJERTSIX4","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2RX4EMLL","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:2RX4EMLLJERTSIX4JXQLLNEHVL","target":"record","payload":{"canonical_record":{"source":{"id":"0908.4364","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-08-29T21:27:59Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"37846b2af238bcfe2916bd69f1f6c45aa6c51283da00614bdacccd837cac480c","abstract_canon_sha256":"448c0713fa367caa14ac61992b914dbd683d8d41fcc6b6c0dce6d9303fb3e72e"},"schema_version":"1.0"},"canonical_sha256":"d46fc2316b49233922fc4de0b5b487aae3291db34aa3e5d78898ec60c02e2ab3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:13.069068Z","signature_b64":"ccp3y6inqDIPXHEkXaS7a6/850x40R1dVFfs9I0wq61xyPdgeO6sEmJFmORLC1W91DoK986KVh72ZFonfKwtDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d46fc2316b49233922fc4de0b5b487aae3291db34aa3e5d78898ec60c02e2ab3","last_reissued_at":"2026-05-18T02:12:13.068193Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:13.068193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0908.4364","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":"2026-05-18T02:12:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5OUtYrkhdbeo25qB20qfwoAl8lzl6WEEBznSPPMQcVcUMVXMrhgnx/uKe5Phue67R6QKKgGKPVUYbonICmpeAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:43:45.711602Z"},"content_sha256":"790de55c7579fd6b6fcccd4fab98519433a864818fb3f13b327f9757921b645f","schema_version":"1.0","event_id":"sha256:790de55c7579fd6b6fcccd4fab98519433a864818fb3f13b327f9757921b645f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:2RX4EMLLJERTSIX4JXQLLNEHVL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-energy effects and electron-phonon coupling in Fe-As superconductors","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. T. Lin, D. L. Sun, G. L. Sun, G. Zwicknagl, H. Berger, I. Eremin, K.-Y. Choi, P. Lemmens","submitted_at":"2009-08-29T21:27:59Z","abstract_excerpt":"We report on Raman scattering experiments of the undoped SrFe2As2 and superconducting Sr0.85K0.15Fe2As2 (Tc=28K) and Ba0.72K0.28Fe2As2 (Tc=32K) single crystals. The frequency and linewidth of the B1g mode at 210 cm-1 exhibits an appreciable temperature dependence induced by the superconducting and spin density wave transitions. We give estimates of the electron-phonon coupling related to this renormalization. In addition, we observe a pronounced quasi-elastic Raman response for the undoped compound, suggesting persisting magnetic fluctuations to low temperatures. In the superconducting state t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.4364","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":"2026-05-18T02:12:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZRa1/oEMummMcuSZ79XvFrqdfGQWKgDM8qfaDkI//mlPtp7KcJWlpkesEGMZ0BUKVBWcyyGpqenAfqPEDo7lBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T22:43:45.711946Z"},"content_sha256":"ce89e6e4ff3cc51a7269b596ffcd90e535ad2221fcdae2a1190e625a5f9a6617","schema_version":"1.0","event_id":"sha256:ce89e6e4ff3cc51a7269b596ffcd90e535ad2221fcdae2a1190e625a5f9a6617"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2RX4EMLLJERTSIX4JXQLLNEHVL/bundle.json","state_url":"https://pith.science/pith/2RX4EMLLJERTSIX4JXQLLNEHVL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2RX4EMLLJERTSIX4JXQLLNEHVL/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":"2026-05-19T22:43:45Z","links":{"resolver":"https://pith.science/pith/2RX4EMLLJERTSIX4JXQLLNEHVL","bundle":"https://pith.science/pith/2RX4EMLLJERTSIX4JXQLLNEHVL/bundle.json","state":"https://pith.science/pith/2RX4EMLLJERTSIX4JXQLLNEHVL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2RX4EMLLJERTSIX4JXQLLNEHVL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:2RX4EMLLJERTSIX4JXQLLNEHVL","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":"448c0713fa367caa14ac61992b914dbd683d8d41fcc6b6c0dce6d9303fb3e72e","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-08-29T21:27:59Z","title_canon_sha256":"37846b2af238bcfe2916bd69f1f6c45aa6c51283da00614bdacccd837cac480c"},"schema_version":"1.0","source":{"id":"0908.4364","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.4364","created_at":"2026-05-18T02:12:13Z"},{"alias_kind":"arxiv_version","alias_value":"0908.4364v1","created_at":"2026-05-18T02:12:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.4364","created_at":"2026-05-18T02:12:13Z"},{"alias_kind":"pith_short_12","alias_value":"2RX4EMLLJERT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2RX4EMLLJERTSIX4","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2RX4EMLL","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:ce89e6e4ff3cc51a7269b596ffcd90e535ad2221fcdae2a1190e625a5f9a6617","target":"graph","created_at":"2026-05-18T02:12:13Z","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 report on Raman scattering experiments of the undoped SrFe2As2 and superconducting Sr0.85K0.15Fe2As2 (Tc=28K) and Ba0.72K0.28Fe2As2 (Tc=32K) single crystals. The frequency and linewidth of the B1g mode at 210 cm-1 exhibits an appreciable temperature dependence induced by the superconducting and spin density wave transitions. We give estimates of the electron-phonon coupling related to this renormalization. In addition, we observe a pronounced quasi-elastic Raman response for the undoped compound, suggesting persisting magnetic fluctuations to low temperatures. In the superconducting state t","authors_text":"C. T. Lin, D. L. Sun, G. L. Sun, G. Zwicknagl, H. Berger, I. Eremin, K.-Y. Choi, P. Lemmens","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-08-29T21:27:59Z","title":"Self-energy effects and electron-phonon coupling in Fe-As superconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.4364","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":"sha256:790de55c7579fd6b6fcccd4fab98519433a864818fb3f13b327f9757921b645f","target":"record","created_at":"2026-05-18T02:12:13Z","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":"448c0713fa367caa14ac61992b914dbd683d8d41fcc6b6c0dce6d9303fb3e72e","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-08-29T21:27:59Z","title_canon_sha256":"37846b2af238bcfe2916bd69f1f6c45aa6c51283da00614bdacccd837cac480c"},"schema_version":"1.0","source":{"id":"0908.4364","kind":"arxiv","version":1}},"canonical_sha256":"d46fc2316b49233922fc4de0b5b487aae3291db34aa3e5d78898ec60c02e2ab3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d46fc2316b49233922fc4de0b5b487aae3291db34aa3e5d78898ec60c02e2ab3","first_computed_at":"2026-05-18T02:12:13.068193Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:13.068193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ccp3y6inqDIPXHEkXaS7a6/850x40R1dVFfs9I0wq61xyPdgeO6sEmJFmORLC1W91DoK986KVh72ZFonfKwtDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:13.069068Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.4364","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:790de55c7579fd6b6fcccd4fab98519433a864818fb3f13b327f9757921b645f","sha256:ce89e6e4ff3cc51a7269b596ffcd90e535ad2221fcdae2a1190e625a5f9a6617"],"state_sha256":"978383ce9f6159aa1191180ff0aa140684292c5c38ccdd9da9898bc62e459b7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oqk0ERuA49i6DBu3+S18OpEmzCvizBY6UgsefgPUWc3bIobKb0Q6dfkxOduLeTDXVkFMD9kMqXVh87YRFRuCBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T22:43:45.714138Z","bundle_sha256":"fa54df7b61bf26aec23155a3d10c1d70410a7df141683abba40fe2ac2972ae3d"}}