{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:272U773MYF7XMLL727QGBBQ3ME","short_pith_number":"pith:272U773M","canonical_record":{"source":{"id":"1801.06330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-19T08:15:40Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"af7dae459f17fd72e0aed626be0be6bfbee7a638b869a7321aac3bb8da090924","abstract_canon_sha256":"56990747321b0b17f85b39284f4ed14222fa3f20da2f0f58398d833b67600cba"},"schema_version":"1.0"},"canonical_sha256":"d7f54fff6cc17f762d7fd7e060861b610f6e115ad35e3a5d1649df3787a4a298","source":{"kind":"arxiv","id":"1801.06330","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.06330","created_at":"2026-05-18T00:18:11Z"},{"alias_kind":"arxiv_version","alias_value":"1801.06330v1","created_at":"2026-05-18T00:18:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.06330","created_at":"2026-05-18T00:18:11Z"},{"alias_kind":"pith_short_12","alias_value":"272U773MYF7X","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"272U773MYF7XMLL7","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"272U773M","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:272U773MYF7XMLL727QGBBQ3ME","target":"record","payload":{"canonical_record":{"source":{"id":"1801.06330","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-19T08:15:40Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"af7dae459f17fd72e0aed626be0be6bfbee7a638b869a7321aac3bb8da090924","abstract_canon_sha256":"56990747321b0b17f85b39284f4ed14222fa3f20da2f0f58398d833b67600cba"},"schema_version":"1.0"},"canonical_sha256":"d7f54fff6cc17f762d7fd7e060861b610f6e115ad35e3a5d1649df3787a4a298","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:11.602362Z","signature_b64":"Llxk6m/tWPzT0U1KFSJdiLKfDzTTHv5//W7eMsSqYJqzUCQPeiBSnZK85JufP3xn9P4EksXmjE3zHVSIy9nvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7f54fff6cc17f762d7fd7e060861b610f6e115ad35e3a5d1649df3787a4a298","last_reissued_at":"2026-05-18T00:18:11.601747Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:11.601747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.06330","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":"2026-05-18T00:18:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vSApausvV6P4EyYP+0VfyRLM+jyy1Ia7mhpYlE49hODk1ZsXWB1f6gneEGEJlETyg0JhHenB1VuwkD+APVBzAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:09:15.161331Z"},"content_sha256":"d898d7685403f28fbbe6b223aba6d0f40f7f3ce9a6dfd04a01bda477af102c77","schema_version":"1.0","event_id":"sha256:d898d7685403f28fbbe6b223aba6d0f40f7f3ce9a6dfd04a01bda477af102c77"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:272U773MYF7XMLL727QGBBQ3ME","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pressure-induced superconductivity in palladium sulfide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Bin-Bin Jiang, Hao Yu, Hong-Jie Pang, Lei Su, Li-Dong Chen, Liu-Cheng Chen, Xiao-Jia Chen, Xun Shi","submitted_at":"2018-01-19T08:15:40Z","abstract_excerpt":"An extended study on PdS is carried out with the measurements of the resistivity, Hall coefficient, Raman scattering, and X-ray diffraction at high pressures up to 42.3 GPa. With increasing pressure, superconductivity is observed accompanying with a structural phase transition at around 19.5 GPa. The coexistence of semiconducting and metallic phases observed at normal state is examined by the Raman scattering and X-ray diffraction between 19.5 and 29.5 GPa. After that, only the metallic normal state maintains with an almost constant superconducting transition temperature. The similar evolution"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.06330","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":"2026-05-18T00:18:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wLbrkRYjRH83MieX3NCC1qmneRflmUiS+4bi0cnhVGoZuLcgfcBwV0bkMUX8alww1oNyCSYCGV3dDQ2mMmBZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:09:15.161685Z"},"content_sha256":"3361461308e4fe0b20c249fc9a71ed9bc14c3c32bac6774032f0afecf51cd3f7","schema_version":"1.0","event_id":"sha256:3361461308e4fe0b20c249fc9a71ed9bc14c3c32bac6774032f0afecf51cd3f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/272U773MYF7XMLL727QGBBQ3ME/bundle.json","state_url":"https://pith.science/pith/272U773MYF7XMLL727QGBBQ3ME/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/272U773MYF7XMLL727QGBBQ3ME/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":"2026-06-03T16:09:15Z","links":{"resolver":"https://pith.science/pith/272U773MYF7XMLL727QGBBQ3ME","bundle":"https://pith.science/pith/272U773MYF7XMLL727QGBBQ3ME/bundle.json","state":"https://pith.science/pith/272U773MYF7XMLL727QGBBQ3ME/state.json","well_known_bundle":"https://pith.science/.well-known/pith/272U773MYF7XMLL727QGBBQ3ME/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:272U773MYF7XMLL727QGBBQ3ME","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":"56990747321b0b17f85b39284f4ed14222fa3f20da2f0f58398d833b67600cba","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-19T08:15:40Z","title_canon_sha256":"af7dae459f17fd72e0aed626be0be6bfbee7a638b869a7321aac3bb8da090924"},"schema_version":"1.0","source":{"id":"1801.06330","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.06330","created_at":"2026-05-18T00:18:11Z"},{"alias_kind":"arxiv_version","alias_value":"1801.06330v1","created_at":"2026-05-18T00:18:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.06330","created_at":"2026-05-18T00:18:11Z"},{"alias_kind":"pith_short_12","alias_value":"272U773MYF7X","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"272U773MYF7XMLL7","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"272U773M","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:3361461308e4fe0b20c249fc9a71ed9bc14c3c32bac6774032f0afecf51cd3f7","target":"graph","created_at":"2026-05-18T00:18:11Z","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":"An extended study on PdS is carried out with the measurements of the resistivity, Hall coefficient, Raman scattering, and X-ray diffraction at high pressures up to 42.3 GPa. With increasing pressure, superconductivity is observed accompanying with a structural phase transition at around 19.5 GPa. The coexistence of semiconducting and metallic phases observed at normal state is examined by the Raman scattering and X-ray diffraction between 19.5 and 29.5 GPa. After that, only the metallic normal state maintains with an almost constant superconducting transition temperature. The similar evolution","authors_text":"Bin-Bin Jiang, Hao Yu, Hong-Jie Pang, Lei Su, Li-Dong Chen, Liu-Cheng Chen, Xiao-Jia Chen, Xun Shi","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-19T08:15:40Z","title":"Pressure-induced superconductivity in palladium sulfide"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.06330","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:d898d7685403f28fbbe6b223aba6d0f40f7f3ce9a6dfd04a01bda477af102c77","target":"record","created_at":"2026-05-18T00:18:11Z","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":"56990747321b0b17f85b39284f4ed14222fa3f20da2f0f58398d833b67600cba","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-19T08:15:40Z","title_canon_sha256":"af7dae459f17fd72e0aed626be0be6bfbee7a638b869a7321aac3bb8da090924"},"schema_version":"1.0","source":{"id":"1801.06330","kind":"arxiv","version":1}},"canonical_sha256":"d7f54fff6cc17f762d7fd7e060861b610f6e115ad35e3a5d1649df3787a4a298","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7f54fff6cc17f762d7fd7e060861b610f6e115ad35e3a5d1649df3787a4a298","first_computed_at":"2026-05-18T00:18:11.601747Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:18:11.601747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Llxk6m/tWPzT0U1KFSJdiLKfDzTTHv5//W7eMsSqYJqzUCQPeiBSnZK85JufP3xn9P4EksXmjE3zHVSIy9nvCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:18:11.602362Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.06330","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d898d7685403f28fbbe6b223aba6d0f40f7f3ce9a6dfd04a01bda477af102c77","sha256:3361461308e4fe0b20c249fc9a71ed9bc14c3c32bac6774032f0afecf51cd3f7"],"state_sha256":"67503731c63ce1ce9eb08c6ba5087287341597a974bc7c24e77acfff2d88fe3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RzfQcm48PPtlHAlQ5m5KenQ97Z+xOtrUDBSFmDts5J61z4IncVuq20DOc7OfFEhbZe/WOgnk0sDvD2qWHgP9DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T16:09:15.163621Z","bundle_sha256":"5cb454baba1495d8b5febe0294231de17d1a1ac95672290a788af5354ff4a6df"}}