{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:UBZKPPR3ZBELWWWA5LXVTEYVKK","short_pith_number":"pith:UBZKPPR3","canonical_record":{"source":{"id":"1904.13180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-30T11:56:50Z","cross_cats_sorted":[],"title_canon_sha256":"58e9b8c19e212fb881b05bbe2007d384236fb99afce842b96986c669e9e2f1af","abstract_canon_sha256":"09b23954e4ba0ed84be16203004cf2fb7842e94ea82143cfb7cb2687ffcf6541"},"schema_version":"1.0"},"canonical_sha256":"a072a7be3bc848bb5ac0eaef59931552b13832e50c21dc6785b029634c984726","source":{"kind":"arxiv","id":"1904.13180","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13180","created_at":"2026-05-17T23:47:21Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13180v1","created_at":"2026-05-17T23:47:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13180","created_at":"2026-05-17T23:47:21Z"},{"alias_kind":"pith_short_12","alias_value":"UBZKPPR3ZBEL","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UBZKPPR3ZBELWWWA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UBZKPPR3","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:UBZKPPR3ZBELWWWA5LXVTEYVKK","target":"record","payload":{"canonical_record":{"source":{"id":"1904.13180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-30T11:56:50Z","cross_cats_sorted":[],"title_canon_sha256":"58e9b8c19e212fb881b05bbe2007d384236fb99afce842b96986c669e9e2f1af","abstract_canon_sha256":"09b23954e4ba0ed84be16203004cf2fb7842e94ea82143cfb7cb2687ffcf6541"},"schema_version":"1.0"},"canonical_sha256":"a072a7be3bc848bb5ac0eaef59931552b13832e50c21dc6785b029634c984726","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:21.991234Z","signature_b64":"MApLT0xFRt0tUOf5cdVwm3w06Ur1Akm31rzF4aC0wXI3GiwY9IEXYWmFt5mRmWB4hxs/trdTQTmpLeJiggnSBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a072a7be3bc848bb5ac0eaef59931552b13832e50c21dc6785b029634c984726","last_reissued_at":"2026-05-17T23:47:21.990782Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:21.990782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.13180","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":"2026-05-17T23:47:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TYr6aUynCnvxmJTonyKvgsfJTLHms8mKhSL+akfnpKHhb84cl5gXisAONnSRK/SDsqeE10EyUHwBQuc3jHXDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T11:15:01.929561Z"},"content_sha256":"aa7d8010f690472ef148ff52ee707cd38d36d2bc94eb60dc1603383add2e9e0b","schema_version":"1.0","event_id":"sha256:aa7d8010f690472ef148ff52ee707cd38d36d2bc94eb60dc1603383add2e9e0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:UBZKPPR3ZBELWWWA5LXVTEYVKK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adsorption of Polylysine on the Surface of the DMPS Monolayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Aleksey M. Tikhonov, Alexander D. Nuzhdin, Boris S. Roshchin, Veijo Honkimaki, Victor E. Asadchikov, Yurii A. Ermakova, Yurii O. Volkov","submitted_at":"2019-04-30T11:56:50Z","abstract_excerpt":"The effect of the adsorption of a polypeptide on the lateral interaction of dimyristoylphosphatidylserine molecules in different phase states on the surface of a 10\\,mM KCl aqueous solution has been studied. Changes in the surface pressure and Volta potential induced by the adsorption of large poly-D-lysine molecules (about 200 links in a chain) have been determined at different areas per lipid molecule in a monolayer. The adsorption of macromolecules noticeably increases the elasticity of the monolayer under lateral compression in the liquid expanded state of lipid and reduces the effective d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13180","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":"2026-05-17T23:47:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3N9GvZUb0uYfW9yHVM0aPBnvg4h37uU1veNSVXRN6U3oTI0na7MLUSUQZ75CyX12EFA2ApUrELikvilIhGPiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T11:15:01.929908Z"},"content_sha256":"62400b678729488559c9d3d5819eda737f56ae76d5b9f25ad932c03b3432d195","schema_version":"1.0","event_id":"sha256:62400b678729488559c9d3d5819eda737f56ae76d5b9f25ad932c03b3432d195"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK/bundle.json","state_url":"https://pith.science/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK/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":"2026-06-23T11:15:01Z","links":{"resolver":"https://pith.science/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK","bundle":"https://pith.science/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK/bundle.json","state":"https://pith.science/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UBZKPPR3ZBELWWWA5LXVTEYVKK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UBZKPPR3ZBELWWWA5LXVTEYVKK","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":"09b23954e4ba0ed84be16203004cf2fb7842e94ea82143cfb7cb2687ffcf6541","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-30T11:56:50Z","title_canon_sha256":"58e9b8c19e212fb881b05bbe2007d384236fb99afce842b96986c669e9e2f1af"},"schema_version":"1.0","source":{"id":"1904.13180","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13180","created_at":"2026-05-17T23:47:21Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13180v1","created_at":"2026-05-17T23:47:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13180","created_at":"2026-05-17T23:47:21Z"},{"alias_kind":"pith_short_12","alias_value":"UBZKPPR3ZBEL","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"UBZKPPR3ZBELWWWA","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"UBZKPPR3","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:62400b678729488559c9d3d5819eda737f56ae76d5b9f25ad932c03b3432d195","target":"graph","created_at":"2026-05-17T23:47:21Z","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 effect of the adsorption of a polypeptide on the lateral interaction of dimyristoylphosphatidylserine molecules in different phase states on the surface of a 10\\,mM KCl aqueous solution has been studied. Changes in the surface pressure and Volta potential induced by the adsorption of large poly-D-lysine molecules (about 200 links in a chain) have been determined at different areas per lipid molecule in a monolayer. The adsorption of macromolecules noticeably increases the elasticity of the monolayer under lateral compression in the liquid expanded state of lipid and reduces the effective d","authors_text":"Aleksey M. Tikhonov, Alexander D. Nuzhdin, Boris S. Roshchin, Veijo Honkimaki, Victor E. Asadchikov, Yurii A. Ermakova, Yurii O. Volkov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-30T11:56:50Z","title":"Adsorption of Polylysine on the Surface of the DMPS Monolayer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13180","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:aa7d8010f690472ef148ff52ee707cd38d36d2bc94eb60dc1603383add2e9e0b","target":"record","created_at":"2026-05-17T23:47:21Z","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":"09b23954e4ba0ed84be16203004cf2fb7842e94ea82143cfb7cb2687ffcf6541","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-04-30T11:56:50Z","title_canon_sha256":"58e9b8c19e212fb881b05bbe2007d384236fb99afce842b96986c669e9e2f1af"},"schema_version":"1.0","source":{"id":"1904.13180","kind":"arxiv","version":1}},"canonical_sha256":"a072a7be3bc848bb5ac0eaef59931552b13832e50c21dc6785b029634c984726","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a072a7be3bc848bb5ac0eaef59931552b13832e50c21dc6785b029634c984726","first_computed_at":"2026-05-17T23:47:21.990782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:21.990782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MApLT0xFRt0tUOf5cdVwm3w06Ur1Akm31rzF4aC0wXI3GiwY9IEXYWmFt5mRmWB4hxs/trdTQTmpLeJiggnSBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:21.991234Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.13180","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa7d8010f690472ef148ff52ee707cd38d36d2bc94eb60dc1603383add2e9e0b","sha256:62400b678729488559c9d3d5819eda737f56ae76d5b9f25ad932c03b3432d195"],"state_sha256":"d9eed399d698d8ec9cdaa5c5a7ab2a356d58a66fb90d82a7e48c8e690e9bbdbe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZtIo7xh6VsLA0AJ8pPHq0WnoDJoCUzh//oqPr+mKNPSOIjyc3Y7QxlEkUzF4+VQCV7r0gsBJj4ShGHQy26A5Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T11:15:01.931889Z","bundle_sha256":"839f79c820a7cb85046707f39c08d44e346e72a177c1217c1354ce1270f3bbaf"}}