{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:YNWD7K4EZ6QFDBXMRDR6WWD4HF","short_pith_number":"pith:YNWD7K4E","canonical_record":{"source":{"id":"1602.02686","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-08T18:33:21Z","cross_cats_sorted":[],"title_canon_sha256":"8c803b729f6ee9e4adcac2a2c02671cde43c7e0c76e8e3d48a1a93537879f883","abstract_canon_sha256":"42df6c2a900d243fb47285a2a10c07a6f9ca85b3cad239ac8c314ac277e1decc"},"schema_version":"1.0"},"canonical_sha256":"c36c3fab84cfa05186ec88e3eb587c3971885873626acd8f0b021b31465d319b","source":{"kind":"arxiv","id":"1602.02686","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.02686","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"arxiv_version","alias_value":"1602.02686v4","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.02686","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"pith_short_12","alias_value":"YNWD7K4EZ6QF","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YNWD7K4EZ6QFDBXM","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YNWD7K4E","created_at":"2026-05-18T12:30:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:YNWD7K4EZ6QFDBXMRDR6WWD4HF","target":"record","payload":{"canonical_record":{"source":{"id":"1602.02686","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-08T18:33:21Z","cross_cats_sorted":[],"title_canon_sha256":"8c803b729f6ee9e4adcac2a2c02671cde43c7e0c76e8e3d48a1a93537879f883","abstract_canon_sha256":"42df6c2a900d243fb47285a2a10c07a6f9ca85b3cad239ac8c314ac277e1decc"},"schema_version":"1.0"},"canonical_sha256":"c36c3fab84cfa05186ec88e3eb587c3971885873626acd8f0b021b31465d319b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:32.485665Z","signature_b64":"IEWp5SwLUk/JhytpYOzFSaIoUPi+QVG0zCNPT4mzryXcRJKV6Nm60P1YtTaMMRcqXmeGsitOHMhsbiupg2xFDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c36c3fab84cfa05186ec88e3eb587c3971885873626acd8f0b021b31465d319b","last_reissued_at":"2026-05-18T01:17:32.484971Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:32.484971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.02686","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:17:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wGsCw+x8VLREk/ijcXJOUKM+8Ve/S4a1/rtVAQ02CFfE3TyT1X7Rwu18EDVTtg6YlqCIerLcWQ11XtSuKdD4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:10:11.003364Z"},"content_sha256":"1b395de9b984e3379f0e69f1b0e0e774451e9abcb1605851ffc2d2d344fdf0df","schema_version":"1.0","event_id":"sha256:1b395de9b984e3379f0e69f1b0e0e774451e9abcb1605851ffc2d2d344fdf0df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:YNWD7K4EZ6QFDBXMRDR6WWD4HF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Structure and Composition of the 200 K-Superconducting Phase of H2S under Ultrahigh Pressure: The Perovskite (SH-)(H3S+)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Annette Bussmann-Holder, Arndt Simon, Elijah E. Gordon{\\S}, Hongjun Xiang, J\\\"urgen K\\\"ohler, Ke Xu{\\S}, Myung-Hwan Whangbo, Reinhard K. Kremer","submitted_at":"2016-02-08T18:33:21Z","abstract_excerpt":"H2S is converted under ultrahigh pressure (> 110 GPa) to a metallic phase that becomes superconducting with a record Tc of 200 K. It has been proposed that the superconducting phase is body-centered cubic H3S ( Im3m , a = 3.089 {\\AA}) resulting from a decomposition reaction 3H2S --> 2H3S + S. The analogy of H2S and H2O leads us to a very different conclusion. The well-known dissociation of water into H3O+ and OH- increases by orders of magnitude under pressure. An equivalent behavior of H2S is anticipated under pressure with the dissociation, 2H2S --> H3S+ + SH- forming a perovskite structure "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.02686","kind":"arxiv","version":4},"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":"2026-05-18T01:17:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X/uERQ9yJIjeInDF581LdM5WneCmIfcs/B48qkSwCbtqYUn+zLZbfiiEm3uA9MCMTgiixG64Sr7T0KoLeDnEBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:10:11.003729Z"},"content_sha256":"854f0894b79d54f26d51424505341c5a65c8df0e7c60b9e3e8d7715af9e42422","schema_version":"1.0","event_id":"sha256:854f0894b79d54f26d51424505341c5a65c8df0e7c60b9e3e8d7715af9e42422"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF/bundle.json","state_url":"https://pith.science/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF/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":"2026-05-28T19:10:11Z","links":{"resolver":"https://pith.science/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF","bundle":"https://pith.science/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF/bundle.json","state":"https://pith.science/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YNWD7K4EZ6QFDBXMRDR6WWD4HF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:YNWD7K4EZ6QFDBXMRDR6WWD4HF","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":"42df6c2a900d243fb47285a2a10c07a6f9ca85b3cad239ac8c314ac277e1decc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-08T18:33:21Z","title_canon_sha256":"8c803b729f6ee9e4adcac2a2c02671cde43c7e0c76e8e3d48a1a93537879f883"},"schema_version":"1.0","source":{"id":"1602.02686","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.02686","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"arxiv_version","alias_value":"1602.02686v4","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.02686","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"pith_short_12","alias_value":"YNWD7K4EZ6QF","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YNWD7K4EZ6QFDBXM","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YNWD7K4E","created_at":"2026-05-18T12:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:854f0894b79d54f26d51424505341c5a65c8df0e7c60b9e3e8d7715af9e42422","target":"graph","created_at":"2026-05-18T01:17:32Z","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":"H2S is converted under ultrahigh pressure (> 110 GPa) to a metallic phase that becomes superconducting with a record Tc of 200 K. It has been proposed that the superconducting phase is body-centered cubic H3S ( Im3m , a = 3.089 {\\AA}) resulting from a decomposition reaction 3H2S --> 2H3S + S. The analogy of H2S and H2O leads us to a very different conclusion. The well-known dissociation of water into H3O+ and OH- increases by orders of magnitude under pressure. An equivalent behavior of H2S is anticipated under pressure with the dissociation, 2H2S --> H3S+ + SH- forming a perovskite structure ","authors_text":"Annette Bussmann-Holder, Arndt Simon, Elijah E. Gordon{\\S}, Hongjun Xiang, J\\\"urgen K\\\"ohler, Ke Xu{\\S}, Myung-Hwan Whangbo, Reinhard K. Kremer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-08T18:33:21Z","title":"Structure and Composition of the 200 K-Superconducting Phase of H2S under Ultrahigh Pressure: The Perovskite (SH-)(H3S+)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.02686","kind":"arxiv","version":4},"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":"sha256:1b395de9b984e3379f0e69f1b0e0e774451e9abcb1605851ffc2d2d344fdf0df","target":"record","created_at":"2026-05-18T01:17:32Z","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":"42df6c2a900d243fb47285a2a10c07a6f9ca85b3cad239ac8c314ac277e1decc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-02-08T18:33:21Z","title_canon_sha256":"8c803b729f6ee9e4adcac2a2c02671cde43c7e0c76e8e3d48a1a93537879f883"},"schema_version":"1.0","source":{"id":"1602.02686","kind":"arxiv","version":4}},"canonical_sha256":"c36c3fab84cfa05186ec88e3eb587c3971885873626acd8f0b021b31465d319b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c36c3fab84cfa05186ec88e3eb587c3971885873626acd8f0b021b31465d319b","first_computed_at":"2026-05-18T01:17:32.484971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:32.484971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IEWp5SwLUk/JhytpYOzFSaIoUPi+QVG0zCNPT4mzryXcRJKV6Nm60P1YtTaMMRcqXmeGsitOHMhsbiupg2xFDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:32.485665Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.02686","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b395de9b984e3379f0e69f1b0e0e774451e9abcb1605851ffc2d2d344fdf0df","sha256:854f0894b79d54f26d51424505341c5a65c8df0e7c60b9e3e8d7715af9e42422"],"state_sha256":"c242882f85eafe91c86d82b0c7fc71d229ded1b8ecf569eceb751199752ab5d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0BalZBGGkwTffcsk3yZNjVOmE/jG/vrADnOWKduoiuQ5FCkdh9NbcSYrxvM2tt+Qm1nqAVb8CKdaL5RAWaovDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:10:11.005899Z","bundle_sha256":"ee88a83f88e2acd9388b370c0781f8439fceeec77dca00c6754e530d41c05c15"}}