{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:KZRGZT6HV4ZATDCJKZLL67YUVT","short_pith_number":"pith:KZRGZT6H","canonical_record":{"source":{"id":"1010.0925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-10-05T15:52:05Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"93d3f776f06efba720d6220fd69aa79eb228c6fe4740509fedd3b705dce21413","abstract_canon_sha256":"9b6d24aa1ce9ecbad0ce41181a6903ab1485647072a6150cd3377aa90515b4d1"},"schema_version":"1.0"},"canonical_sha256":"56626ccfc7af32098c495656bf7f14acc58d022bcd7ab172974b7e8e9d59b540","source":{"kind":"arxiv","id":"1010.0925","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.0925","created_at":"2026-05-18T02:05:11Z"},{"alias_kind":"arxiv_version","alias_value":"1010.0925v1","created_at":"2026-05-18T02:05:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.0925","created_at":"2026-05-18T02:05:11Z"},{"alias_kind":"pith_short_12","alias_value":"KZRGZT6HV4ZA","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KZRGZT6HV4ZATDCJ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KZRGZT6H","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:KZRGZT6HV4ZATDCJKZLL67YUVT","target":"record","payload":{"canonical_record":{"source":{"id":"1010.0925","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-10-05T15:52:05Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"93d3f776f06efba720d6220fd69aa79eb228c6fe4740509fedd3b705dce21413","abstract_canon_sha256":"9b6d24aa1ce9ecbad0ce41181a6903ab1485647072a6150cd3377aa90515b4d1"},"schema_version":"1.0"},"canonical_sha256":"56626ccfc7af32098c495656bf7f14acc58d022bcd7ab172974b7e8e9d59b540","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:11.137454Z","signature_b64":"EQBSdvl77ell34VcLb8DjpLqnPQmAWSyVpOki0nLwAvupM8GXUIzez/uzgcGirEtOrc7euDoidZnRI8ggthMAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56626ccfc7af32098c495656bf7f14acc58d022bcd7ab172974b7e8e9d59b540","last_reissued_at":"2026-05-18T02:05:11.136689Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:11.136689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.0925","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":"2026-05-18T02:05:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G3pXy81KY8RjtfwJTISxfE8Px08z0L3B9TRTsZU5Yc1bJ5LxFP48FbyTABzSDNgn0bRPhxBeMFQy2RXKKm4CCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:31:21.599782Z"},"content_sha256":"ad16cdbf3fbf37caa00eec408333ce3d1258a1bd6dc2917a56e12ff9dbdb9835","schema_version":"1.0","event_id":"sha256:ad16cdbf3fbf37caa00eec408333ce3d1258a1bd6dc2917a56e12ff9dbdb9835"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:KZRGZT6HV4ZATDCJKZLL67YUVT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Carbon Doping of MgB2 by Toluene and Malic-Acid-in-Toluene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"E. W. Collings, M. A. Rindfleisch, M. A. Susner, M. D. Sumption, R. Boone, S. D. Bohnenstiehl, Y. Yang","submitted_at":"2010-10-05T15:52:05Z","abstract_excerpt":"The decomposition of malic acid in the presence of Mg and B was studied using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) which revealed that malic acid reacted with Mg but not B. Also, the addition of toluene to dissolve malic acid followed by subsequent drying resulted in no reaction with Mg, indicating that the malic acid had decomposed during the dissolution/drying stage. The total carbon contributed by toluene versus a toluene/5 wt% malic acid mixture was measured using a LECO CS600 carbon analyzer. The toluene sample contained ~0.4 wt% C while the toluene"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.0925","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":"2026-05-18T02:05:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OlZw1GmPmWjWSXWiqFxXLdRRxHuHORTRy9IUIrX8mQ719Mb32doOMw9kx24oyaT+ERrsSr4H/5KXKMJTzJnHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T04:31:21.600141Z"},"content_sha256":"18c98a8921398536cdc6969574e1a545fbc01a12f6a1b53dea829c7a520dff2b","schema_version":"1.0","event_id":"sha256:18c98a8921398536cdc6969574e1a545fbc01a12f6a1b53dea829c7a520dff2b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KZRGZT6HV4ZATDCJKZLL67YUVT/bundle.json","state_url":"https://pith.science/pith/KZRGZT6HV4ZATDCJKZLL67YUVT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KZRGZT6HV4ZATDCJKZLL67YUVT/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":"2026-06-01T04:31:21Z","links":{"resolver":"https://pith.science/pith/KZRGZT6HV4ZATDCJKZLL67YUVT","bundle":"https://pith.science/pith/KZRGZT6HV4ZATDCJKZLL67YUVT/bundle.json","state":"https://pith.science/pith/KZRGZT6HV4ZATDCJKZLL67YUVT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KZRGZT6HV4ZATDCJKZLL67YUVT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:KZRGZT6HV4ZATDCJKZLL67YUVT","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":"9b6d24aa1ce9ecbad0ce41181a6903ab1485647072a6150cd3377aa90515b4d1","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-10-05T15:52:05Z","title_canon_sha256":"93d3f776f06efba720d6220fd69aa79eb228c6fe4740509fedd3b705dce21413"},"schema_version":"1.0","source":{"id":"1010.0925","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.0925","created_at":"2026-05-18T02:05:11Z"},{"alias_kind":"arxiv_version","alias_value":"1010.0925v1","created_at":"2026-05-18T02:05:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.0925","created_at":"2026-05-18T02:05:11Z"},{"alias_kind":"pith_short_12","alias_value":"KZRGZT6HV4ZA","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KZRGZT6HV4ZATDCJ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KZRGZT6H","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:18c98a8921398536cdc6969574e1a545fbc01a12f6a1b53dea829c7a520dff2b","target":"graph","created_at":"2026-05-18T02:05:11Z","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":"The decomposition of malic acid in the presence of Mg and B was studied using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) which revealed that malic acid reacted with Mg but not B. Also, the addition of toluene to dissolve malic acid followed by subsequent drying resulted in no reaction with Mg, indicating that the malic acid had decomposed during the dissolution/drying stage. The total carbon contributed by toluene versus a toluene/5 wt% malic acid mixture was measured using a LECO CS600 carbon analyzer. The toluene sample contained ~0.4 wt% C while the toluene","authors_text":"E. W. Collings, M. A. Rindfleisch, M. A. Susner, M. D. Sumption, R. Boone, S. D. Bohnenstiehl, Y. Yang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-10-05T15:52:05Z","title":"Carbon Doping of MgB2 by Toluene and Malic-Acid-in-Toluene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.0925","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:ad16cdbf3fbf37caa00eec408333ce3d1258a1bd6dc2917a56e12ff9dbdb9835","target":"record","created_at":"2026-05-18T02:05:11Z","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":"9b6d24aa1ce9ecbad0ce41181a6903ab1485647072a6150cd3377aa90515b4d1","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-10-05T15:52:05Z","title_canon_sha256":"93d3f776f06efba720d6220fd69aa79eb228c6fe4740509fedd3b705dce21413"},"schema_version":"1.0","source":{"id":"1010.0925","kind":"arxiv","version":1}},"canonical_sha256":"56626ccfc7af32098c495656bf7f14acc58d022bcd7ab172974b7e8e9d59b540","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56626ccfc7af32098c495656bf7f14acc58d022bcd7ab172974b7e8e9d59b540","first_computed_at":"2026-05-18T02:05:11.136689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:11.136689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EQBSdvl77ell34VcLb8DjpLqnPQmAWSyVpOki0nLwAvupM8GXUIzez/uzgcGirEtOrc7euDoidZnRI8ggthMAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:11.137454Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.0925","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad16cdbf3fbf37caa00eec408333ce3d1258a1bd6dc2917a56e12ff9dbdb9835","sha256:18c98a8921398536cdc6969574e1a545fbc01a12f6a1b53dea829c7a520dff2b"],"state_sha256":"9ff22038c36bcc1fa676c2773d036f31e5df820c4eed616c2ddd0169ad8a4596"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WjpJMAUIxKFvcF5gzF0hYXD85pY+fGe18GxR0OrnMl/OnCk30rpZ7i5P29GDF/r0dAySWhvGZEoJEVM4KPiRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T04:31:21.602424Z","bundle_sha256":"9dad7ccdf44911d2200cee2524a4172d710a9c603ffc40cd992837f8088df0bf"}}