{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:DELHM4VXRQQRWL3L35J52P23Q4","short_pith_number":"pith:DELHM4VX","canonical_record":{"source":{"id":"1605.02367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-08T20:51:17Z","cross_cats_sorted":[],"title_canon_sha256":"99aebe038a349fda1f99e76324e774a91a5c146cfb1d52ca856621b8247dd87d","abstract_canon_sha256":"0b2b7318e4f3217064822e033b4e32ad65e483aa6db568206c092b7672ed88f5"},"schema_version":"1.0"},"canonical_sha256":"19167672b78c211b2f6bdf53dd3f5b8737011294a7137e19f8ccc2242b17dcec","source":{"kind":"arxiv","id":"1605.02367","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.02367","created_at":"2026-05-18T00:35:25Z"},{"alias_kind":"arxiv_version","alias_value":"1605.02367v1","created_at":"2026-05-18T00:35:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.02367","created_at":"2026-05-18T00:35:25Z"},{"alias_kind":"pith_short_12","alias_value":"DELHM4VXRQQR","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DELHM4VXRQQRWL3L","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DELHM4VX","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:DELHM4VXRQQRWL3L35J52P23Q4","target":"record","payload":{"canonical_record":{"source":{"id":"1605.02367","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-08T20:51:17Z","cross_cats_sorted":[],"title_canon_sha256":"99aebe038a349fda1f99e76324e774a91a5c146cfb1d52ca856621b8247dd87d","abstract_canon_sha256":"0b2b7318e4f3217064822e033b4e32ad65e483aa6db568206c092b7672ed88f5"},"schema_version":"1.0"},"canonical_sha256":"19167672b78c211b2f6bdf53dd3f5b8737011294a7137e19f8ccc2242b17dcec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:25.028875Z","signature_b64":"2dNvfiQk1MEtP/XyJRpiy7KDNcfM1X1SbtTKiSF2qOLHK4E8RYkE2z09tdkwHKxt55ihq4tiyH0b89CeYk/kCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19167672b78c211b2f6bdf53dd3f5b8737011294a7137e19f8ccc2242b17dcec","last_reissued_at":"2026-05-18T00:35:25.028254Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:25.028254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.02367","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":"2026-05-18T00:35:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OjXQxCrNx62n5jrbysIvN+bQ5Ge/9JYLrDyRjpANBw3mS3qPIci3uSz5hMBkF9M1wj0b2jZov1mRI1vG6XjiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:04:35.428205Z"},"content_sha256":"81723381bcbcfd964f9babd72d5586384bd50bc5031913904bf1276a7d7a8fab","schema_version":"1.0","event_id":"sha256:81723381bcbcfd964f9babd72d5586384bd50bc5031913904bf1276a7d7a8fab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:DELHM4VXRQQRWL3L35J52P23Q4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Valence fluctuations in Sn(Pb)$_2$P$_2$S$_6$ ferroelectrics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Dziaugys, A. Kohutych, A. Molnar, Ju. Banys, M. Medulych, R. Yevych, V. Haborets, Yu. Vysochanskii","submitted_at":"2016-05-08T20:51:17Z","abstract_excerpt":"The valence fluctuations which are related to the charge disproportionation of phosphorous ions $P^{4+} + P^{4+}\\rightarrow P^{3+} + P^{5+}$ are the origin of ferroelectric and quantum paraelectric states in Sn(Pb)$_2$P$_2$S$_6$ semiconductors. They involve recharging of SnPS$_3$ or PbPS$_3$ structural groups which could be represented as half-filled sites in the crystal lattice. Temperature-pressure phase diagram for Sn$_2$P$_2$S$_6$ compound and temperature-composition phase diagram for (Pb$_y$Sn$_{1-y}$)$_2$P$_2$S$_6$ mixed crystals, which include tricritical points and where a temperature "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02367","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":"2026-05-18T00:35:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DxKYYmeZa9vmOaqVXXj270/F8bkzFra9WTgBo/ZJxHP0sTYeWfDWHWbj8FN4ljtgEghmW0GyDNj/J97PTcRaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:04:35.428950Z"},"content_sha256":"3c2e9f4743c3eb6fc3a55184a272c8a5d9ebfb089b82e725cab4359f94a3e4a9","schema_version":"1.0","event_id":"sha256:3c2e9f4743c3eb6fc3a55184a272c8a5d9ebfb089b82e725cab4359f94a3e4a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DELHM4VXRQQRWL3L35J52P23Q4/bundle.json","state_url":"https://pith.science/pith/DELHM4VXRQQRWL3L35J52P23Q4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DELHM4VXRQQRWL3L35J52P23Q4/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":"2026-05-25T21:04:35Z","links":{"resolver":"https://pith.science/pith/DELHM4VXRQQRWL3L35J52P23Q4","bundle":"https://pith.science/pith/DELHM4VXRQQRWL3L35J52P23Q4/bundle.json","state":"https://pith.science/pith/DELHM4VXRQQRWL3L35J52P23Q4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DELHM4VXRQQRWL3L35J52P23Q4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:DELHM4VXRQQRWL3L35J52P23Q4","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":"0b2b7318e4f3217064822e033b4e32ad65e483aa6db568206c092b7672ed88f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-08T20:51:17Z","title_canon_sha256":"99aebe038a349fda1f99e76324e774a91a5c146cfb1d52ca856621b8247dd87d"},"schema_version":"1.0","source":{"id":"1605.02367","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.02367","created_at":"2026-05-18T00:35:25Z"},{"alias_kind":"arxiv_version","alias_value":"1605.02367v1","created_at":"2026-05-18T00:35:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.02367","created_at":"2026-05-18T00:35:25Z"},{"alias_kind":"pith_short_12","alias_value":"DELHM4VXRQQR","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DELHM4VXRQQRWL3L","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DELHM4VX","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:3c2e9f4743c3eb6fc3a55184a272c8a5d9ebfb089b82e725cab4359f94a3e4a9","target":"graph","created_at":"2026-05-18T00:35:25Z","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 valence fluctuations which are related to the charge disproportionation of phosphorous ions $P^{4+} + P^{4+}\\rightarrow P^{3+} + P^{5+}$ are the origin of ferroelectric and quantum paraelectric states in Sn(Pb)$_2$P$_2$S$_6$ semiconductors. They involve recharging of SnPS$_3$ or PbPS$_3$ structural groups which could be represented as half-filled sites in the crystal lattice. Temperature-pressure phase diagram for Sn$_2$P$_2$S$_6$ compound and temperature-composition phase diagram for (Pb$_y$Sn$_{1-y}$)$_2$P$_2$S$_6$ mixed crystals, which include tricritical points and where a temperature ","authors_text":"A. Dziaugys, A. Kohutych, A. Molnar, Ju. Banys, M. Medulych, R. Yevych, V. Haborets, Yu. Vysochanskii","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-08T20:51:17Z","title":"Valence fluctuations in Sn(Pb)$_2$P$_2$S$_6$ ferroelectrics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02367","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":"sha256:81723381bcbcfd964f9babd72d5586384bd50bc5031913904bf1276a7d7a8fab","target":"record","created_at":"2026-05-18T00:35:25Z","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":"0b2b7318e4f3217064822e033b4e32ad65e483aa6db568206c092b7672ed88f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-08T20:51:17Z","title_canon_sha256":"99aebe038a349fda1f99e76324e774a91a5c146cfb1d52ca856621b8247dd87d"},"schema_version":"1.0","source":{"id":"1605.02367","kind":"arxiv","version":1}},"canonical_sha256":"19167672b78c211b2f6bdf53dd3f5b8737011294a7137e19f8ccc2242b17dcec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19167672b78c211b2f6bdf53dd3f5b8737011294a7137e19f8ccc2242b17dcec","first_computed_at":"2026-05-18T00:35:25.028254Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:25.028254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2dNvfiQk1MEtP/XyJRpiy7KDNcfM1X1SbtTKiSF2qOLHK4E8RYkE2z09tdkwHKxt55ihq4tiyH0b89CeYk/kCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:25.028875Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.02367","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81723381bcbcfd964f9babd72d5586384bd50bc5031913904bf1276a7d7a8fab","sha256:3c2e9f4743c3eb6fc3a55184a272c8a5d9ebfb089b82e725cab4359f94a3e4a9"],"state_sha256":"c3841712f979686fcb4c0137e324221ecb16831ba94ac6f5ff884b637c9128ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TmIs6DXJKrcUciSNOOUGo2QUdQAr7dw+vCQogL+moWNcwGyTkNu3cNsLRrnAs0RH+7Tf+JVThWH/MJruJEgRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:04:35.432861Z","bundle_sha256":"b85caea8a24a3b42e34ae1311e2b4755fe689e3f4b1a8b2955d012a48fa97a75"}}