{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:KHHBXFX3OWJ3ASLLGMZOXJCRQK","short_pith_number":"pith:KHHBXFX3","canonical_record":{"source":{"id":"2109.08891","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2021-09-18T09:52:59Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"3c5f7e507283ce970517e90a6e343d5054c32e661f213f2a1a52da94a3fa0123","abstract_canon_sha256":"f1d636fa5bb6b5a9e0d59c38f36c8b328064d0a1b4cf72c20a5e2c836cde5fbb"},"schema_version":"1.0"},"canonical_sha256":"51ce1b96fb7593b0496b3332eba45182a285b18c996d7aa24e1c44d6110db07b","source":{"kind":"arxiv","id":"2109.08891","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.08891","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"arxiv_version","alias_value":"2109.08891v1","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.08891","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"pith_short_12","alias_value":"KHHBXFX3OWJ3","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"pith_short_16","alias_value":"KHHBXFX3OWJ3ASLL","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"pith_short_8","alias_value":"KHHBXFX3","created_at":"2026-07-05T03:15:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:KHHBXFX3OWJ3ASLLGMZOXJCRQK","target":"record","payload":{"canonical_record":{"source":{"id":"2109.08891","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2021-09-18T09:52:59Z","cross_cats_sorted":["physics.geo-ph"],"title_canon_sha256":"3c5f7e507283ce970517e90a6e343d5054c32e661f213f2a1a52da94a3fa0123","abstract_canon_sha256":"f1d636fa5bb6b5a9e0d59c38f36c8b328064d0a1b4cf72c20a5e2c836cde5fbb"},"schema_version":"1.0"},"canonical_sha256":"51ce1b96fb7593b0496b3332eba45182a285b18c996d7aa24e1c44d6110db07b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:15:39.389273Z","signature_b64":"yLCwQ5R5ok1bEjFz+LjKx1zt0cVkedVZyIfItZ+Zm5vhhAw+b9FQR+SHf43fVYw0r0P0ns0srY3G2pDJk3uuCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"51ce1b96fb7593b0496b3332eba45182a285b18c996d7aa24e1c44d6110db07b","last_reissued_at":"2026-07-05T03:15:39.388841Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:15:39.388841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.08891","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":"2026-07-05T03:15:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XBAOXDeH2+IPCpIbKgP5QOhXpRqQiTU1a4DFDpsR8wJiw4dQ6/qVZ5wLCgQSZZGOMdZ+OrujvrjjwYjNhvC7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:44:26.151074Z"},"content_sha256":"d76f6275f789c867ba470184e3038bdb4447defad002268c1b03f85c015af66a","schema_version":"1.0","event_id":"sha256:d76f6275f789c867ba470184e3038bdb4447defad002268c1b03f85c015af66a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:KHHBXFX3OWJ3ASLLGMZOXJCRQK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stabilization of S3O4 at High Pressure-Implications for the Sulfur Excess Paradox","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.geo-ph"],"primary_cat":"physics.comp-ph","authors_text":"Andreas Hermann, Guochun Yang, Ho-kwang Mao, Jian Lv, Pengyue Gao, Siyu Liu, Yanchao Wang, Yanming Ma","submitted_at":"2021-09-18T09:52:59Z","abstract_excerpt":"The geological conundrum of sulfur excess refers to the finding that predicted amounts of sulfur, in the form of SO2, discharged in volcanic eruptions much exceeds the sulfur available for degassing from the erupted magma. Exploring the source of the excess sulfur has been the subject of considerable interest. Here, from a systematic computational investigation of sulfur-oxygen compounds under pressure, a hitherto unknown S3O4 compound containing a mixture of sulfur oxidation states +II and +IV emerges and is predicted to be stabilized above a pressure of 79 GPa. We predict that S3O4 can be pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.08891","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2109.08891/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:15:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DelCAiBcQ73cM/uNwyM4Zw3JY4htAfZp+1J7eTxbqXwTQ0HKHAo+C164ZE1mZUHajSS+juJuAI9mk3vXR06ECA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:44:26.151467Z"},"content_sha256":"3f5d82f085e431ef3598051aec02ce5ce7ff57d911a385c3682fa7f644bd87b9","schema_version":"1.0","event_id":"sha256:3f5d82f085e431ef3598051aec02ce5ce7ff57d911a385c3682fa7f644bd87b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK/bundle.json","state_url":"https://pith.science/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK/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":"2026-07-07T11:44:26Z","links":{"resolver":"https://pith.science/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK","bundle":"https://pith.science/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK/bundle.json","state":"https://pith.science/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KHHBXFX3OWJ3ASLLGMZOXJCRQK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:KHHBXFX3OWJ3ASLLGMZOXJCRQK","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":"f1d636fa5bb6b5a9e0d59c38f36c8b328064d0a1b4cf72c20a5e2c836cde5fbb","cross_cats_sorted":["physics.geo-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2021-09-18T09:52:59Z","title_canon_sha256":"3c5f7e507283ce970517e90a6e343d5054c32e661f213f2a1a52da94a3fa0123"},"schema_version":"1.0","source":{"id":"2109.08891","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.08891","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"arxiv_version","alias_value":"2109.08891v1","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.08891","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"pith_short_12","alias_value":"KHHBXFX3OWJ3","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"pith_short_16","alias_value":"KHHBXFX3OWJ3ASLL","created_at":"2026-07-05T03:15:39Z"},{"alias_kind":"pith_short_8","alias_value":"KHHBXFX3","created_at":"2026-07-05T03:15:39Z"}],"graph_snapshots":[{"event_id":"sha256:3f5d82f085e431ef3598051aec02ce5ce7ff57d911a385c3682fa7f644bd87b9","target":"graph","created_at":"2026-07-05T03:15:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2109.08891/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The geological conundrum of sulfur excess refers to the finding that predicted amounts of sulfur, in the form of SO2, discharged in volcanic eruptions much exceeds the sulfur available for degassing from the erupted magma. Exploring the source of the excess sulfur has been the subject of considerable interest. Here, from a systematic computational investigation of sulfur-oxygen compounds under pressure, a hitherto unknown S3O4 compound containing a mixture of sulfur oxidation states +II and +IV emerges and is predicted to be stabilized above a pressure of 79 GPa. We predict that S3O4 can be pr","authors_text":"Andreas Hermann, Guochun Yang, Ho-kwang Mao, Jian Lv, Pengyue Gao, Siyu Liu, Yanchao Wang, Yanming Ma","cross_cats":["physics.geo-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2021-09-18T09:52:59Z","title":"Stabilization of S3O4 at High Pressure-Implications for the Sulfur Excess Paradox"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.08891","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:d76f6275f789c867ba470184e3038bdb4447defad002268c1b03f85c015af66a","target":"record","created_at":"2026-07-05T03:15:39Z","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":"f1d636fa5bb6b5a9e0d59c38f36c8b328064d0a1b4cf72c20a5e2c836cde5fbb","cross_cats_sorted":["physics.geo-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2021-09-18T09:52:59Z","title_canon_sha256":"3c5f7e507283ce970517e90a6e343d5054c32e661f213f2a1a52da94a3fa0123"},"schema_version":"1.0","source":{"id":"2109.08891","kind":"arxiv","version":1}},"canonical_sha256":"51ce1b96fb7593b0496b3332eba45182a285b18c996d7aa24e1c44d6110db07b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51ce1b96fb7593b0496b3332eba45182a285b18c996d7aa24e1c44d6110db07b","first_computed_at":"2026-07-05T03:15:39.388841Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:15:39.388841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yLCwQ5R5ok1bEjFz+LjKx1zt0cVkedVZyIfItZ+Zm5vhhAw+b9FQR+SHf43fVYw0r0P0ns0srY3G2pDJk3uuCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:15:39.389273Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.08891","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d76f6275f789c867ba470184e3038bdb4447defad002268c1b03f85c015af66a","sha256:3f5d82f085e431ef3598051aec02ce5ce7ff57d911a385c3682fa7f644bd87b9"],"state_sha256":"e44e2bcf40b0aa950c3b47cda2fb9645321babd13d563b67e669cf38ef657a35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"snYzR57TaqzNvkky+J7g2SVaSnvkxj0W71GScbHuF1clDogEu2qkmywTESiK+5eqPrYsontIzLCQPFjjBFIvCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:44:26.153426Z","bundle_sha256":"ae330a64a3be90f4a2e9deac28f913bbaa41a9cdeaafc1a638e85e0b6e598c4e"}}