{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:C5TFTZVG5VLWLRYJFK3KNYMOGK","short_pith_number":"pith:C5TFTZVG","canonical_record":{"source":{"id":"1009.1572","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-08T15:55:13Z","cross_cats_sorted":[],"title_canon_sha256":"d963a5cfb7c4ecb5cf5a8b940161390e3984683a41c75c9a420de00a6d5610d7","abstract_canon_sha256":"be0b443823136a2f798d54fe3786f67947ce0f92ccd9eea9be94a2bec4b48e67"},"schema_version":"1.0"},"canonical_sha256":"176659e6a6ed5765c7092ab6a6e18e32bbe23668196721341f7840cb7b58cd81","source":{"kind":"arxiv","id":"1009.1572","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1572","created_at":"2026-05-18T04:11:08Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1572v2","created_at":"2026-05-18T04:11:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1572","created_at":"2026-05-18T04:11:08Z"},{"alias_kind":"pith_short_12","alias_value":"C5TFTZVG5VLW","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"C5TFTZVG5VLWLRYJ","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"C5TFTZVG","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:C5TFTZVG5VLWLRYJFK3KNYMOGK","target":"record","payload":{"canonical_record":{"source":{"id":"1009.1572","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-08T15:55:13Z","cross_cats_sorted":[],"title_canon_sha256":"d963a5cfb7c4ecb5cf5a8b940161390e3984683a41c75c9a420de00a6d5610d7","abstract_canon_sha256":"be0b443823136a2f798d54fe3786f67947ce0f92ccd9eea9be94a2bec4b48e67"},"schema_version":"1.0"},"canonical_sha256":"176659e6a6ed5765c7092ab6a6e18e32bbe23668196721341f7840cb7b58cd81","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:11:08.485232Z","signature_b64":"Wkj48QOtnsS5CB/IaB9kaZPFtyHhZM1D4k70tC09PFUATzOcTc1PRrNzEAd8yTP4WTx/yMlSudcplWt69KPaBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"176659e6a6ed5765c7092ab6a6e18e32bbe23668196721341f7840cb7b58cd81","last_reissued_at":"2026-05-18T04:11:08.484692Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:11:08.484692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.1572","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":"2026-05-18T04:11:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4zqLuo0GtD6qTvPfCC/kI2rNwVGAv6XXDWqpsD3uV9NPPS0qjTfQql2wwoY+dMmWmWOgYAqfEmxJDlN7HDJtCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:30:18.570995Z"},"content_sha256":"5ccccc8c51125cad790142d788b69fb4e7522d826fa0ac70ef80a35607296b2c","schema_version":"1.0","event_id":"sha256:5ccccc8c51125cad790142d788b69fb4e7522d826fa0ac70ef80a35607296b2c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:C5TFTZVG5VLWLRYJFK3KNYMOGK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multigap superconductivity and strong electron-boson coupling in Fe-based superconductors: A point-contact Andreev-reflection study of Ba(Fe1-xCox)2As2 single crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"D. Daghero, E.E. Hellstrom, G.A. Ummarino, J.D. Weiss, J. Jiang, M. Tortello, R.S. Gonnelli, V.A. Stepanov","submitted_at":"2010-09-08T15:55:13Z","abstract_excerpt":"Directional point-contact Andreev-reflection (PCAR) measurements in Ba(Fe1-xCox)2As2 single crystals (Tc=24.5 K) indicate the presence of two superconducting gaps with no line nodes on the Fermi surface. The PCAR spectra also feature additional structures related to the electron-boson interaction, from which the characteristic boson energy Omega_b(T) is obtained, very similar to the spin-resonance energy observed in neutron scattering experiments. Both the gaps and the additional structures can be reproduced within a three-band s+- Eliashberg model by using an electron-boson spectral function "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1572","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":"2026-05-18T04:11:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vGJ6P+tkfCziGahsNXlGQhpiyPlnMTM+hLKqoVBUrfVwwt0/ZhlqCPXnXSo9BToRxkUVKZX3YvoBmnjINVOXAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:30:18.571689Z"},"content_sha256":"b9c1c029cf979f114116eabe62555d6f1c6dd600a816e3af2a67ec6b22b30358","schema_version":"1.0","event_id":"sha256:b9c1c029cf979f114116eabe62555d6f1c6dd600a816e3af2a67ec6b22b30358"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK/bundle.json","state_url":"https://pith.science/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK/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":"2026-05-25T19:30:18Z","links":{"resolver":"https://pith.science/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK","bundle":"https://pith.science/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK/bundle.json","state":"https://pith.science/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C5TFTZVG5VLWLRYJFK3KNYMOGK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:C5TFTZVG5VLWLRYJFK3KNYMOGK","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":"be0b443823136a2f798d54fe3786f67947ce0f92ccd9eea9be94a2bec4b48e67","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-08T15:55:13Z","title_canon_sha256":"d963a5cfb7c4ecb5cf5a8b940161390e3984683a41c75c9a420de00a6d5610d7"},"schema_version":"1.0","source":{"id":"1009.1572","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1572","created_at":"2026-05-18T04:11:08Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1572v2","created_at":"2026-05-18T04:11:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1572","created_at":"2026-05-18T04:11:08Z"},{"alias_kind":"pith_short_12","alias_value":"C5TFTZVG5VLW","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"C5TFTZVG5VLWLRYJ","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"C5TFTZVG","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:b9c1c029cf979f114116eabe62555d6f1c6dd600a816e3af2a67ec6b22b30358","target":"graph","created_at":"2026-05-18T04:11:08Z","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":"Directional point-contact Andreev-reflection (PCAR) measurements in Ba(Fe1-xCox)2As2 single crystals (Tc=24.5 K) indicate the presence of two superconducting gaps with no line nodes on the Fermi surface. The PCAR spectra also feature additional structures related to the electron-boson interaction, from which the characteristic boson energy Omega_b(T) is obtained, very similar to the spin-resonance energy observed in neutron scattering experiments. Both the gaps and the additional structures can be reproduced within a three-band s+- Eliashberg model by using an electron-boson spectral function ","authors_text":"D. Daghero, E.E. Hellstrom, G.A. Ummarino, J.D. Weiss, J. Jiang, M. Tortello, R.S. Gonnelli, V.A. Stepanov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-08T15:55:13Z","title":"Multigap superconductivity and strong electron-boson coupling in Fe-based superconductors: A point-contact Andreev-reflection study of Ba(Fe1-xCox)2As2 single crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1572","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":"sha256:5ccccc8c51125cad790142d788b69fb4e7522d826fa0ac70ef80a35607296b2c","target":"record","created_at":"2026-05-18T04:11:08Z","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":"be0b443823136a2f798d54fe3786f67947ce0f92ccd9eea9be94a2bec4b48e67","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-09-08T15:55:13Z","title_canon_sha256":"d963a5cfb7c4ecb5cf5a8b940161390e3984683a41c75c9a420de00a6d5610d7"},"schema_version":"1.0","source":{"id":"1009.1572","kind":"arxiv","version":2}},"canonical_sha256":"176659e6a6ed5765c7092ab6a6e18e32bbe23668196721341f7840cb7b58cd81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"176659e6a6ed5765c7092ab6a6e18e32bbe23668196721341f7840cb7b58cd81","first_computed_at":"2026-05-18T04:11:08.484692Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:11:08.484692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wkj48QOtnsS5CB/IaB9kaZPFtyHhZM1D4k70tC09PFUATzOcTc1PRrNzEAd8yTP4WTx/yMlSudcplWt69KPaBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:11:08.485232Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.1572","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ccccc8c51125cad790142d788b69fb4e7522d826fa0ac70ef80a35607296b2c","sha256:b9c1c029cf979f114116eabe62555d6f1c6dd600a816e3af2a67ec6b22b30358"],"state_sha256":"6fdd269c411eb047385ffbceb74164526a68011ddf65d47198efc440615dcf63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9casfAUsoiFM2ubBei7JbxOQxU95isA0yDk98JkjQW3F9Ms9145X4OONy7NOkkPDIyl4hPBGdxL22wnA664NDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:30:18.575757Z","bundle_sha256":"660624319591277e225a31b1d0863e83b53ccbaee1604e9057f376ad23a1f769"}}