{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:6AJ4UMZUY5KEXSOOBIIRYHXSZD","short_pith_number":"pith:6AJ4UMZU","canonical_record":{"source":{"id":"1706.03229","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T12:45:38Z","cross_cats_sorted":["physics.app-ph","physics.optics"],"title_canon_sha256":"5e45041f3a82f69d77b810b20378147a7bfc7be805bc390c8dd54dd48079a1a9","abstract_canon_sha256":"1f818ca50e6c92e55ddc820067a0dcc7f1a9e11dfebe2eba6bb24c6bc484607d"},"schema_version":"1.0"},"canonical_sha256":"f013ca3334c7544bc9ce0a111c1ef2c8f321edd23f3e227cc826b087f1f97c54","source":{"kind":"arxiv","id":"1706.03229","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03229","created_at":"2026-05-18T00:33:01Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03229v3","created_at":"2026-05-18T00:33:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03229","created_at":"2026-05-18T00:33:01Z"},{"alias_kind":"pith_short_12","alias_value":"6AJ4UMZUY5KE","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6AJ4UMZUY5KEXSOO","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6AJ4UMZU","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:6AJ4UMZUY5KEXSOOBIIRYHXSZD","target":"record","payload":{"canonical_record":{"source":{"id":"1706.03229","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T12:45:38Z","cross_cats_sorted":["physics.app-ph","physics.optics"],"title_canon_sha256":"5e45041f3a82f69d77b810b20378147a7bfc7be805bc390c8dd54dd48079a1a9","abstract_canon_sha256":"1f818ca50e6c92e55ddc820067a0dcc7f1a9e11dfebe2eba6bb24c6bc484607d"},"schema_version":"1.0"},"canonical_sha256":"f013ca3334c7544bc9ce0a111c1ef2c8f321edd23f3e227cc826b087f1f97c54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:01.972981Z","signature_b64":"Fnp1ILMzgAiqGR2DtMc/+2GbP4daqN6ucK55jAMPktrr/OYqDJ7xhP+mbscjnhLepVZRz+e2/aieFvbwJl8VDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f013ca3334c7544bc9ce0a111c1ef2c8f321edd23f3e227cc826b087f1f97c54","last_reissued_at":"2026-05-18T00:33:01.972382Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:01.972382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.03229","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:33:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R9LZ3bhbfOwyGHBSc/XeokmXqNBR3gClU87xHYffp/M11tRet1nhpQT1PQywxNYgJpAKOY600noARgNVQ7LlAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T20:31:34.329471Z"},"content_sha256":"025eb5465e6a7d2ed93f5537037cc6b31a0fad954ffb565c806cfa94d2b0c110","schema_version":"1.0","event_id":"sha256:025eb5465e6a7d2ed93f5537037cc6b31a0fad954ffb565c806cfa94d2b0c110"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:6AJ4UMZUY5KEXSOOBIIRYHXSZD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Smart patterned surfaces with programmable thermal emissivity and their design through combinatorial strategies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph","physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Nicolaos J. Siakavellas, Nikolaos Athanasopoulos","submitted_at":"2017-06-10T12:45:38Z","abstract_excerpt":"The emissivity of common materials remains constant with temperature variations, and cannot drastically change. However, it is possible to design its entire behaviour as a function of temperature, and to significantly modify the thermal emissivity of a surface through the combination of different materials and patterns. Here, we show that smart patterned surfaces consisting of smaller structures (motifs) may be designed to respond uniquely through combinatorial design strategies by transforming themselves from 2D to 3D complex structures with a two-way shape memory effect. The smart surfaces c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03229","kind":"arxiv","version":3},"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":"2026-05-18T00:33:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Xd3vkLI8AHV8U30L4tsAel0X9nZ5MEI6hz91UjOiHajHMW78CFzQMgBPmzbUvB3zdK5mxTaJRxUV4/RoH1uBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T20:31:34.329813Z"},"content_sha256":"2bd419b4fc72d143bc86b77040520c63e7d54d341b5d11ef1b6625824006eba4","schema_version":"1.0","event_id":"sha256:2bd419b4fc72d143bc86b77040520c63e7d54d341b5d11ef1b6625824006eba4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD/bundle.json","state_url":"https://pith.science/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD/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":"2026-06-27T20:31:34Z","links":{"resolver":"https://pith.science/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD","bundle":"https://pith.science/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD/bundle.json","state":"https://pith.science/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6AJ4UMZUY5KEXSOOBIIRYHXSZD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6AJ4UMZUY5KEXSOOBIIRYHXSZD","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":"1f818ca50e6c92e55ddc820067a0dcc7f1a9e11dfebe2eba6bb24c6bc484607d","cross_cats_sorted":["physics.app-ph","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T12:45:38Z","title_canon_sha256":"5e45041f3a82f69d77b810b20378147a7bfc7be805bc390c8dd54dd48079a1a9"},"schema_version":"1.0","source":{"id":"1706.03229","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03229","created_at":"2026-05-18T00:33:01Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03229v3","created_at":"2026-05-18T00:33:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03229","created_at":"2026-05-18T00:33:01Z"},{"alias_kind":"pith_short_12","alias_value":"6AJ4UMZUY5KE","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6AJ4UMZUY5KEXSOO","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6AJ4UMZU","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:2bd419b4fc72d143bc86b77040520c63e7d54d341b5d11ef1b6625824006eba4","target":"graph","created_at":"2026-05-18T00:33:01Z","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 emissivity of common materials remains constant with temperature variations, and cannot drastically change. However, it is possible to design its entire behaviour as a function of temperature, and to significantly modify the thermal emissivity of a surface through the combination of different materials and patterns. Here, we show that smart patterned surfaces consisting of smaller structures (motifs) may be designed to respond uniquely through combinatorial design strategies by transforming themselves from 2D to 3D complex structures with a two-way shape memory effect. The smart surfaces c","authors_text":"Nicolaos J. Siakavellas, Nikolaos Athanasopoulos","cross_cats":["physics.app-ph","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T12:45:38Z","title":"Smart patterned surfaces with programmable thermal emissivity and their design through combinatorial strategies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03229","kind":"arxiv","version":3},"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":"sha256:025eb5465e6a7d2ed93f5537037cc6b31a0fad954ffb565c806cfa94d2b0c110","target":"record","created_at":"2026-05-18T00:33:01Z","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":"1f818ca50e6c92e55ddc820067a0dcc7f1a9e11dfebe2eba6bb24c6bc484607d","cross_cats_sorted":["physics.app-ph","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T12:45:38Z","title_canon_sha256":"5e45041f3a82f69d77b810b20378147a7bfc7be805bc390c8dd54dd48079a1a9"},"schema_version":"1.0","source":{"id":"1706.03229","kind":"arxiv","version":3}},"canonical_sha256":"f013ca3334c7544bc9ce0a111c1ef2c8f321edd23f3e227cc826b087f1f97c54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f013ca3334c7544bc9ce0a111c1ef2c8f321edd23f3e227cc826b087f1f97c54","first_computed_at":"2026-05-18T00:33:01.972382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:01.972382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fnp1ILMzgAiqGR2DtMc/+2GbP4daqN6ucK55jAMPktrr/OYqDJ7xhP+mbscjnhLepVZRz+e2/aieFvbwJl8VDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:01.972981Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.03229","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:025eb5465e6a7d2ed93f5537037cc6b31a0fad954ffb565c806cfa94d2b0c110","sha256:2bd419b4fc72d143bc86b77040520c63e7d54d341b5d11ef1b6625824006eba4"],"state_sha256":"f69c3938843648c936118a44ac1d11ee53ced14aaed402c7553579b61400a9e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r7zV2XzqOHuZ20zV5+55spTZZPsocE0YjHjtbhynyD4QhOhYcnVc16AD4MJMKHu17atNk4G0s5IbAY/joizzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T20:31:34.331711Z","bundle_sha256":"3a8c94c534fa62aa605c7bf000af6641f1802407a581ec65d074b30aff5371ab"}}