{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:U6SSB7GPUXBD6JAMEOS2BMWIQH","short_pith_number":"pith:U6SSB7GP","canonical_record":{"source":{"id":"1608.05785","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-08-20T05:50:31Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech","physics.chem-ph"],"title_canon_sha256":"56a32c281190932ebdbe3a903d69e19ff3ba664c4c32a2b3dbddda568817735a","abstract_canon_sha256":"ddada02dda68b471a1cd4f23b250bc0243dbf4e892323f5a8c320a3949ed7d5e"},"schema_version":"1.0"},"canonical_sha256":"a7a520fccfa5c23f240c23a5a0b2c881d190835c3a3f3d723423d92667e46ce1","source":{"kind":"arxiv","id":"1608.05785","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.05785","created_at":"2026-05-18T00:59:41Z"},{"alias_kind":"arxiv_version","alias_value":"1608.05785v1","created_at":"2026-05-18T00:59:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.05785","created_at":"2026-05-18T00:59:41Z"},{"alias_kind":"pith_short_12","alias_value":"U6SSB7GPUXBD","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"U6SSB7GPUXBD6JAM","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"U6SSB7GP","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:U6SSB7GPUXBD6JAMEOS2BMWIQH","target":"record","payload":{"canonical_record":{"source":{"id":"1608.05785","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-08-20T05:50:31Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech","physics.chem-ph"],"title_canon_sha256":"56a32c281190932ebdbe3a903d69e19ff3ba664c4c32a2b3dbddda568817735a","abstract_canon_sha256":"ddada02dda68b471a1cd4f23b250bc0243dbf4e892323f5a8c320a3949ed7d5e"},"schema_version":"1.0"},"canonical_sha256":"a7a520fccfa5c23f240c23a5a0b2c881d190835c3a3f3d723423d92667e46ce1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:41.691788Z","signature_b64":"vI89psJZqGJ+JFyQNmGWksLp0gTwioDKaz+gxQ7EDq88LZfIhv4vDTcW9ASzbCL5UDXPBm4xpz4Gm2xB0FyxBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7a520fccfa5c23f240c23a5a0b2c881d190835c3a3f3d723423d92667e46ce1","last_reissued_at":"2026-05-18T00:59:41.690882Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:41.690882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.05785","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":"2026-05-18T00:59:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nlpjOfrW/b0fT8ShIqr2JSmtDkFbvWfgWDfsboWAJcdU6NyEGI2tHUKBMFlBQPX+CJPT3GfLD/fs7B4vljXkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:47:28.671511Z"},"content_sha256":"f5c2289ce3ae410ca754b10905826a7fcdc04a59a312fae4d5f49c47139e517a","schema_version":"1.0","event_id":"sha256:f5c2289ce3ae410ca754b10905826a7fcdc04a59a312fae4d5f49c47139e517a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:U6SSB7GPUXBD6JAMEOS2BMWIQH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Defect-free Perpendicular Diblock Copolymer Films: The Synergistic Effect of Surface Topography and Chemistry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.stat-mech","physics.chem-ph"],"primary_cat":"cond-mat.soft","authors_text":"Dadong Yan, David Andelman, Jiuzhou Tang, Pan Zhou, Xingkun Man","submitted_at":"2016-08-20T05:50:31Z","abstract_excerpt":"We propose a direct self-assembly mechanism towards obtaining defect-free perpendicular lamellar phases of diblock copolymer (BCP) thin films. In our numerical study, a thin BCP film having a flat top surface is casted on a uni-directional corrugated solid substrate. The substrate is treated chemically and has a weak preference toward one of the two BCP components. Employing self-consistent field theory (SCFT), we find that there is an enhanced synergy between two substrate characteristics: its topography (geometrical roughness) combined with a weak surface preference. This synergy produces th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.05785","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":"2026-05-18T00:59:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zFijJ8Mmvugufko0weOmEFvDsnHVsESpRd1r/2DFv05enetqeIgRne/vKRDm3/v2bVH/LfpeOqw7EwOcyopGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T17:47:28.671859Z"},"content_sha256":"6273e2fa2bf34dc7f4e451cb6b211d87a6c62f135f6dd7fcdfb80a360091fb2b","schema_version":"1.0","event_id":"sha256:6273e2fa2bf34dc7f4e451cb6b211d87a6c62f135f6dd7fcdfb80a360091fb2b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH/bundle.json","state_url":"https://pith.science/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH/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":"2026-06-01T17:47:28Z","links":{"resolver":"https://pith.science/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH","bundle":"https://pith.science/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH/bundle.json","state":"https://pith.science/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U6SSB7GPUXBD6JAMEOS2BMWIQH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:U6SSB7GPUXBD6JAMEOS2BMWIQH","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":"ddada02dda68b471a1cd4f23b250bc0243dbf4e892323f5a8c320a3949ed7d5e","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-08-20T05:50:31Z","title_canon_sha256":"56a32c281190932ebdbe3a903d69e19ff3ba664c4c32a2b3dbddda568817735a"},"schema_version":"1.0","source":{"id":"1608.05785","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.05785","created_at":"2026-05-18T00:59:41Z"},{"alias_kind":"arxiv_version","alias_value":"1608.05785v1","created_at":"2026-05-18T00:59:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.05785","created_at":"2026-05-18T00:59:41Z"},{"alias_kind":"pith_short_12","alias_value":"U6SSB7GPUXBD","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"U6SSB7GPUXBD6JAM","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"U6SSB7GP","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:6273e2fa2bf34dc7f4e451cb6b211d87a6c62f135f6dd7fcdfb80a360091fb2b","target":"graph","created_at":"2026-05-18T00:59:41Z","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":"We propose a direct self-assembly mechanism towards obtaining defect-free perpendicular lamellar phases of diblock copolymer (BCP) thin films. In our numerical study, a thin BCP film having a flat top surface is casted on a uni-directional corrugated solid substrate. The substrate is treated chemically and has a weak preference toward one of the two BCP components. Employing self-consistent field theory (SCFT), we find that there is an enhanced synergy between two substrate characteristics: its topography (geometrical roughness) combined with a weak surface preference. This synergy produces th","authors_text":"Dadong Yan, David Andelman, Jiuzhou Tang, Pan Zhou, Xingkun Man","cross_cats":["cond-mat.mtrl-sci","cond-mat.stat-mech","physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-08-20T05:50:31Z","title":"Defect-free Perpendicular Diblock Copolymer Films: The Synergistic Effect of Surface Topography and Chemistry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.05785","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:f5c2289ce3ae410ca754b10905826a7fcdc04a59a312fae4d5f49c47139e517a","target":"record","created_at":"2026-05-18T00:59:41Z","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":"ddada02dda68b471a1cd4f23b250bc0243dbf4e892323f5a8c320a3949ed7d5e","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.stat-mech","physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2016-08-20T05:50:31Z","title_canon_sha256":"56a32c281190932ebdbe3a903d69e19ff3ba664c4c32a2b3dbddda568817735a"},"schema_version":"1.0","source":{"id":"1608.05785","kind":"arxiv","version":1}},"canonical_sha256":"a7a520fccfa5c23f240c23a5a0b2c881d190835c3a3f3d723423d92667e46ce1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7a520fccfa5c23f240c23a5a0b2c881d190835c3a3f3d723423d92667e46ce1","first_computed_at":"2026-05-18T00:59:41.690882Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:41.690882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vI89psJZqGJ+JFyQNmGWksLp0gTwioDKaz+gxQ7EDq88LZfIhv4vDTcW9ASzbCL5UDXPBm4xpz4Gm2xB0FyxBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:41.691788Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.05785","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f5c2289ce3ae410ca754b10905826a7fcdc04a59a312fae4d5f49c47139e517a","sha256:6273e2fa2bf34dc7f4e451cb6b211d87a6c62f135f6dd7fcdfb80a360091fb2b"],"state_sha256":"850a2c5441dc1a658b693cc3486630563f7aa81cdb95624481fae60edd60d7aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BXTUQSlXubA3U2I/D6CW0Yg/67W5C0NWCk78WoZosxtwIiF7Tr1X4MBqLxb1sU2e1Tjt/1RPZooK3WcxrShbDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T17:47:28.673858Z","bundle_sha256":"70ea8bc4f92433aab8f885037f29b88d25971e0e254fa4896e221f9fa342cf19"}}