{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:L5FIOAHQODYW3GYRXAUZMFFW6E","short_pith_number":"pith:L5FIOAHQ","canonical_record":{"source":{"id":"1111.0820","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-11-03T12:49:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"f57039ce7fc993f38b58a0fd00b3df1e4d2d05c0883209b091fc1e021efbb032","abstract_canon_sha256":"64a6bbe8e51fef70f0606709f027bbf39c8fa477dc131a600ebdd28135e5743a"},"schema_version":"1.0"},"canonical_sha256":"5f4a8700f070f16d9b11b8299614b6f1105dfe748f7a62a2551782777c45c792","source":{"kind":"arxiv","id":"1111.0820","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.0820","created_at":"2026-05-18T04:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"1111.0820v2","created_at":"2026-05-18T04:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.0820","created_at":"2026-05-18T04:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"L5FIOAHQODYW","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L5FIOAHQODYW3GYR","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L5FIOAHQ","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:L5FIOAHQODYW3GYRXAUZMFFW6E","target":"record","payload":{"canonical_record":{"source":{"id":"1111.0820","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-11-03T12:49:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"f57039ce7fc993f38b58a0fd00b3df1e4d2d05c0883209b091fc1e021efbb032","abstract_canon_sha256":"64a6bbe8e51fef70f0606709f027bbf39c8fa477dc131a600ebdd28135e5743a"},"schema_version":"1.0"},"canonical_sha256":"5f4a8700f070f16d9b11b8299614b6f1105dfe748f7a62a2551782777c45c792","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:07:42.813111Z","signature_b64":"xD4F5DHz5OFJO8/FH2Tbzopoc0CR0u8secd4Futt0mf6E1+igDdm+Yd1Kfd9aulTxioQ4QzkiaT1bdjW1G8mDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f4a8700f070f16d9b11b8299614b6f1105dfe748f7a62a2551782777c45c792","last_reissued_at":"2026-05-18T04:07:42.812519Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:07:42.812519Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.0820","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":"2026-05-18T04:07:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KVMHA1Xq9P86tphl6KDMcatPwOV0SC3pNz22CnJ/Alr1I2yXYOFFV+oeUJ3WIcLcCTUlyhysVRNG9tl5+uvRCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:37:19.209397Z"},"content_sha256":"9f075ffe1b954954f01bc581c6eeacd393050e04d90f19f34168d4e52a3fe547","schema_version":"1.0","event_id":"sha256:9f075ffe1b954954f01bc581c6eeacd393050e04d90f19f34168d4e52a3fe547"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:L5FIOAHQODYW3GYRXAUZMFFW6E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity at 33 K in potassium-doped 1,2:8,9-dibenzopentacene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"Duming Wang, Fengwang Li, G. F. Chen, Huaixin Yang, Junbao He, Mianqi Xue, Tingbing Cao, Xiaoli Dong, Yue Wu","submitted_at":"2011-11-03T12:49:07Z","abstract_excerpt":"We report the observation of superconductivity at 33 K in K-doped 1,2:8,9-dibenzopentacene (C30H18). This is higher than any Tc reported previously for an organic superconductor besides the alkali-metal doped C60. This finding provides an indication that superconductivity at much higher temperature may be possible in such system, if PAHs with longer benzene rings can be synthesized."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.0820","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":"2026-05-18T04:07:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0Vk9gSat9aW+3Ho7P4jGP3V7nfLFJmPyIVN+UZWBj7iiYrQCszY7QmPN8m0cs8c6RCQJdI52tBJhn9I73wyKAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:37:19.209752Z"},"content_sha256":"66a5cba41341e209f6f8242a6cd33ed3a93bbbe77aa1e283360f515f05248ce5","schema_version":"1.0","event_id":"sha256:66a5cba41341e209f6f8242a6cd33ed3a93bbbe77aa1e283360f515f05248ce5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L5FIOAHQODYW3GYRXAUZMFFW6E/bundle.json","state_url":"https://pith.science/pith/L5FIOAHQODYW3GYRXAUZMFFW6E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L5FIOAHQODYW3GYRXAUZMFFW6E/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":"2026-05-31T02:37:19Z","links":{"resolver":"https://pith.science/pith/L5FIOAHQODYW3GYRXAUZMFFW6E","bundle":"https://pith.science/pith/L5FIOAHQODYW3GYRXAUZMFFW6E/bundle.json","state":"https://pith.science/pith/L5FIOAHQODYW3GYRXAUZMFFW6E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L5FIOAHQODYW3GYRXAUZMFFW6E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:L5FIOAHQODYW3GYRXAUZMFFW6E","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":"64a6bbe8e51fef70f0606709f027bbf39c8fa477dc131a600ebdd28135e5743a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-11-03T12:49:07Z","title_canon_sha256":"f57039ce7fc993f38b58a0fd00b3df1e4d2d05c0883209b091fc1e021efbb032"},"schema_version":"1.0","source":{"id":"1111.0820","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.0820","created_at":"2026-05-18T04:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"1111.0820v2","created_at":"2026-05-18T04:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.0820","created_at":"2026-05-18T04:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"L5FIOAHQODYW","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L5FIOAHQODYW3GYR","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L5FIOAHQ","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:66a5cba41341e209f6f8242a6cd33ed3a93bbbe77aa1e283360f515f05248ce5","target":"graph","created_at":"2026-05-18T04:07:42Z","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"},"paper":{"abstract_excerpt":"We report the observation of superconductivity at 33 K in K-doped 1,2:8,9-dibenzopentacene (C30H18). This is higher than any Tc reported previously for an organic superconductor besides the alkali-metal doped C60. This finding provides an indication that superconductivity at much higher temperature may be possible in such system, if PAHs with longer benzene rings can be synthesized.","authors_text":"Duming Wang, Fengwang Li, G. F. Chen, Huaixin Yang, Junbao He, Mianqi Xue, Tingbing Cao, Xiaoli Dong, Yue Wu","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-11-03T12:49:07Z","title":"Superconductivity at 33 K in potassium-doped 1,2:8,9-dibenzopentacene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.0820","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":"sha256:9f075ffe1b954954f01bc581c6eeacd393050e04d90f19f34168d4e52a3fe547","target":"record","created_at":"2026-05-18T04:07:42Z","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":"64a6bbe8e51fef70f0606709f027bbf39c8fa477dc131a600ebdd28135e5743a","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2011-11-03T12:49:07Z","title_canon_sha256":"f57039ce7fc993f38b58a0fd00b3df1e4d2d05c0883209b091fc1e021efbb032"},"schema_version":"1.0","source":{"id":"1111.0820","kind":"arxiv","version":2}},"canonical_sha256":"5f4a8700f070f16d9b11b8299614b6f1105dfe748f7a62a2551782777c45c792","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f4a8700f070f16d9b11b8299614b6f1105dfe748f7a62a2551782777c45c792","first_computed_at":"2026-05-18T04:07:42.812519Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:42.812519Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xD4F5DHz5OFJO8/FH2Tbzopoc0CR0u8secd4Futt0mf6E1+igDdm+Yd1Kfd9aulTxioQ4QzkiaT1bdjW1G8mDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:42.813111Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.0820","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f075ffe1b954954f01bc581c6eeacd393050e04d90f19f34168d4e52a3fe547","sha256:66a5cba41341e209f6f8242a6cd33ed3a93bbbe77aa1e283360f515f05248ce5"],"state_sha256":"a047c214bb88a154d193df521aa3088c511b1f531ff0f3e4639593f311cc3ada"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7nniaXHLuHF9mEHY/dtNyU3K+8angl3j8CqCDbYtbNfiH8fZv9S+zaEpKrY9F2HD7Er93lw8TbPV7U0QiddBDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:37:19.212085Z","bundle_sha256":"34b6af451374eb13fcf97622bc95654795591b5a01fa75074ce5bf5105e38776"}}