{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:DIOBPTZAJYF27WVUXG6MYYP2Y6","short_pith_number":"pith:DIOBPTZA","canonical_record":{"source":{"id":"1001.4564","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-01-26T18:39:05Z","cross_cats_sorted":[],"title_canon_sha256":"bbdfb1b1554c8668e6fb7766547f6a8c237a3a81e9dde47bc6ac4ee783f79635","abstract_canon_sha256":"c7f174cfad233b741eee1ae1c23be4391e4ce669473d23a50c23d9309784e46a"},"schema_version":"1.0"},"canonical_sha256":"1a1c17cf204e0bafdab4b9bccc61fac7a7a06423ec64bf37ab4bbbdb2d07384c","source":{"kind":"arxiv","id":"1001.4564","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.4564","created_at":"2026-05-18T02:09:30Z"},{"alias_kind":"arxiv_version","alias_value":"1001.4564v1","created_at":"2026-05-18T02:09:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.4564","created_at":"2026-05-18T02:09:30Z"},{"alias_kind":"pith_short_12","alias_value":"DIOBPTZAJYF2","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DIOBPTZAJYF27WVU","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DIOBPTZA","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:DIOBPTZAJYF27WVUXG6MYYP2Y6","target":"record","payload":{"canonical_record":{"source":{"id":"1001.4564","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-01-26T18:39:05Z","cross_cats_sorted":[],"title_canon_sha256":"bbdfb1b1554c8668e6fb7766547f6a8c237a3a81e9dde47bc6ac4ee783f79635","abstract_canon_sha256":"c7f174cfad233b741eee1ae1c23be4391e4ce669473d23a50c23d9309784e46a"},"schema_version":"1.0"},"canonical_sha256":"1a1c17cf204e0bafdab4b9bccc61fac7a7a06423ec64bf37ab4bbbdb2d07384c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:30.036704Z","signature_b64":"hWltTShI+2YBF9FzAYM/qO13retlZNPuOU6YCw1dOuyQsw32pL6Sx+BEiKTeqQbUOjhxRHGgnJoA3iBiBbu/BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a1c17cf204e0bafdab4b9bccc61fac7a7a06423ec64bf37ab4bbbdb2d07384c","last_reissued_at":"2026-05-18T02:09:30.035993Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:30.035993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.4564","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":"2026-05-18T02:09:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0G2FVqyyIsJL0EjqP6z+zv9EuBrO5pPB+u0VDZuE7LTWtxdxBoN3GdsXtvecccT+Va4LBNrElXY/QY9aWgE5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:07:37.044961Z"},"content_sha256":"fbf199e2cf419ee2e703d676d60ceaf1dd71803ea2325469385aabdd5c341148","schema_version":"1.0","event_id":"sha256:fbf199e2cf419ee2e703d676d60ceaf1dd71803ea2325469385aabdd5c341148"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:DIOBPTZAJYF27WVUXG6MYYP2Y6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gap structure in the electron-doped Iron-Arsenide Superconductor Ba(Fe0.92Co0.08)2As2: low-temperature specific heat study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A.S. Sefat, B.C. Sales, D. Mandrus, E.D. Bauer, F. Ronning, J.D. Thompson, K. Gofryk, M.A. McGuire","submitted_at":"2010-01-26T18:39:05Z","abstract_excerpt":"We report the field and temperature dependence of the low-temperature specific heat down to 400 mK and in magnetic fields up to 9 T of the electron-doped Ba(Fe0.92Co0.08)2As2 superconductor. Using the phonon specific heat obtained from pure BaFe2As2 we find the normal state Sommerfeld coefficient to be 18 mJ/mol.K^2 and a condensation energy of 1.27 J/mol. The temperature dependence of the electronic specific heat clearly indicate the presence of the low-energy excitations in the system. The magnetic field variation of field-induced specific heat cannot be described by single clean s- or d-wav"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.4564","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":"2026-05-18T02:09:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"59RZChmYpUEYJZz3GfzSo3xDtzkwaRTktcYTinSiVXh9WbcxJ0mhO9HXjzQcJTco9iZAzEis8oui2WmubMm+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T17:07:37.045619Z"},"content_sha256":"47b2c047fd99eb94c2df21570aec7044a3b23b2dcf56759a5ca7d841cee70061","schema_version":"1.0","event_id":"sha256:47b2c047fd99eb94c2df21570aec7044a3b23b2dcf56759a5ca7d841cee70061"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6/bundle.json","state_url":"https://pith.science/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6/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":"2026-05-22T17:07:37Z","links":{"resolver":"https://pith.science/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6","bundle":"https://pith.science/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6/bundle.json","state":"https://pith.science/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIOBPTZAJYF27WVUXG6MYYP2Y6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DIOBPTZAJYF27WVUXG6MYYP2Y6","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":"c7f174cfad233b741eee1ae1c23be4391e4ce669473d23a50c23d9309784e46a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-01-26T18:39:05Z","title_canon_sha256":"bbdfb1b1554c8668e6fb7766547f6a8c237a3a81e9dde47bc6ac4ee783f79635"},"schema_version":"1.0","source":{"id":"1001.4564","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.4564","created_at":"2026-05-18T02:09:30Z"},{"alias_kind":"arxiv_version","alias_value":"1001.4564v1","created_at":"2026-05-18T02:09:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.4564","created_at":"2026-05-18T02:09:30Z"},{"alias_kind":"pith_short_12","alias_value":"DIOBPTZAJYF2","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DIOBPTZAJYF27WVU","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DIOBPTZA","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:47b2c047fd99eb94c2df21570aec7044a3b23b2dcf56759a5ca7d841cee70061","target":"graph","created_at":"2026-05-18T02:09:30Z","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 the field and temperature dependence of the low-temperature specific heat down to 400 mK and in magnetic fields up to 9 T of the electron-doped Ba(Fe0.92Co0.08)2As2 superconductor. Using the phonon specific heat obtained from pure BaFe2As2 we find the normal state Sommerfeld coefficient to be 18 mJ/mol.K^2 and a condensation energy of 1.27 J/mol. The temperature dependence of the electronic specific heat clearly indicate the presence of the low-energy excitations in the system. The magnetic field variation of field-induced specific heat cannot be described by single clean s- or d-wav","authors_text":"A.S. Sefat, B.C. Sales, D. Mandrus, E.D. Bauer, F. Ronning, J.D. Thompson, K. Gofryk, M.A. McGuire","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-01-26T18:39:05Z","title":"Gap structure in the electron-doped Iron-Arsenide Superconductor Ba(Fe0.92Co0.08)2As2: low-temperature specific heat study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.4564","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:fbf199e2cf419ee2e703d676d60ceaf1dd71803ea2325469385aabdd5c341148","target":"record","created_at":"2026-05-18T02:09:30Z","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":"c7f174cfad233b741eee1ae1c23be4391e4ce669473d23a50c23d9309784e46a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-01-26T18:39:05Z","title_canon_sha256":"bbdfb1b1554c8668e6fb7766547f6a8c237a3a81e9dde47bc6ac4ee783f79635"},"schema_version":"1.0","source":{"id":"1001.4564","kind":"arxiv","version":1}},"canonical_sha256":"1a1c17cf204e0bafdab4b9bccc61fac7a7a06423ec64bf37ab4bbbdb2d07384c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a1c17cf204e0bafdab4b9bccc61fac7a7a06423ec64bf37ab4bbbdb2d07384c","first_computed_at":"2026-05-18T02:09:30.035993Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:30.035993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hWltTShI+2YBF9FzAYM/qO13retlZNPuOU6YCw1dOuyQsw32pL6Sx+BEiKTeqQbUOjhxRHGgnJoA3iBiBbu/BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:30.036704Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.4564","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fbf199e2cf419ee2e703d676d60ceaf1dd71803ea2325469385aabdd5c341148","sha256:47b2c047fd99eb94c2df21570aec7044a3b23b2dcf56759a5ca7d841cee70061"],"state_sha256":"f3745f4b3ffb240fcab90607f70cd411e7685b19bcbbfa81548b00836ea30342"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KYmSEA5cGNjG3H14qU4Wa3+YjGqHKC/kgepQOYqO0lD2FLkfmswpG7OwNXtW317k3pH5RFOxOYxxrqRGcJS3DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T17:07:37.049423Z","bundle_sha256":"38b658398fa48f1645f1a055d6b92b935f1f6baa86a3424c092fb3a12832329e"}}