{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7TJJXNLMHLJIWKTGCJBFG6OZXT","short_pith_number":"pith:7TJJXNLM","canonical_record":{"source":{"id":"1211.6811","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-29T05:17:15Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.soft"],"title_canon_sha256":"75ba5256f3e8b8c9fbd6919d55ff905d3eb068d55f175d8b98e83afdb1fc2941","abstract_canon_sha256":"a4bc82d345cccc2aa385377415854dcc4e1258a96b36853e699627216f573053"},"schema_version":"1.0"},"canonical_sha256":"fcd29bb56c3ad28b2a6612425379d9bcee8bb04c60cd4bf0a612f0803b2d796b","source":{"kind":"arxiv","id":"1211.6811","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.6811","created_at":"2026-05-18T02:57:15Z"},{"alias_kind":"arxiv_version","alias_value":"1211.6811v1","created_at":"2026-05-18T02:57:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.6811","created_at":"2026-05-18T02:57:15Z"},{"alias_kind":"pith_short_12","alias_value":"7TJJXNLMHLJI","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7TJJXNLMHLJIWKTG","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7TJJXNLM","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7TJJXNLMHLJIWKTGCJBFG6OZXT","target":"record","payload":{"canonical_record":{"source":{"id":"1211.6811","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-29T05:17:15Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.soft"],"title_canon_sha256":"75ba5256f3e8b8c9fbd6919d55ff905d3eb068d55f175d8b98e83afdb1fc2941","abstract_canon_sha256":"a4bc82d345cccc2aa385377415854dcc4e1258a96b36853e699627216f573053"},"schema_version":"1.0"},"canonical_sha256":"fcd29bb56c3ad28b2a6612425379d9bcee8bb04c60cd4bf0a612f0803b2d796b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:57:15.040288Z","signature_b64":"52OYDwv4idGle0uOGzQTT1sc+gDNTBmI2ktEbTAe24ZJAReB+YTADvTY0VuffDAXTClVIwkcil1zPanXjusKDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fcd29bb56c3ad28b2a6612425379d9bcee8bb04c60cd4bf0a612f0803b2d796b","last_reissued_at":"2026-05-18T02:57:15.039791Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:57:15.039791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.6811","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":"2026-05-18T02:57:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5UKAeRx2K9w7C1KblMk6sti0ZrFkllEUdITX1s1eL3gSbSfrW6btNshc1LeyqXSk/jMGf615zhcLN2r1rmakCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:55:44.466515Z"},"content_sha256":"816bad48d453171a583985a71f0cbcc7889a3e353c00589f58017d198ff4a6b8","schema_version":"1.0","event_id":"sha256:816bad48d453171a583985a71f0cbcc7889a3e353c00589f58017d198ff4a6b8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7TJJXNLMHLJIWKTGCJBFG6OZXT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Creating bio-inspired hierarchical 3D-2D photonic stacks via planar lithography on self-assembled inverse opals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.soft"],"primary_cat":"physics.optics","authors_text":"Ian B. Burgess, Joanna Aizenberg, Marko Loncar","submitted_at":"2012-11-29T05:17:15Z","abstract_excerpt":"Structural hierarchy and complex 3D architecture are characteristics of biological photonic designs that are challenging to reproduce in synthetic materials. Top-down lithography allows for designer patterning of arbitrary shapes, but is largely restricted to planar 2D structures. Self-assembly techniques facilitate easy fabrication of 3D photonic crystals, but controllable defect-integration is difficult. In this paper we combine the advantages of top-down and bottom-up fabrication, developing two techniques to deposit 2D-lithographically-patterned planar layers on top of or in between invers"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.6811","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":"2026-05-18T02:57:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VOCMet+t1Uc/TRnFhF3bBcFpEw6PwxbEokB1Pop1qWzA4eNlvaFxhYBqr1iob+nhqje8MWX2AAJ2k+qM1hKvBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:55:44.466873Z"},"content_sha256":"f6467ac1464fc66ed5eb850f916c4fc27c581428d0b53101e693345c9470ed20","schema_version":"1.0","event_id":"sha256:f6467ac1464fc66ed5eb850f916c4fc27c581428d0b53101e693345c9470ed20"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT/bundle.json","state_url":"https://pith.science/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT/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":"2026-06-03T06:55:44Z","links":{"resolver":"https://pith.science/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT","bundle":"https://pith.science/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT/bundle.json","state":"https://pith.science/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7TJJXNLMHLJIWKTGCJBFG6OZXT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7TJJXNLMHLJIWKTGCJBFG6OZXT","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":"a4bc82d345cccc2aa385377415854dcc4e1258a96b36853e699627216f573053","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-29T05:17:15Z","title_canon_sha256":"75ba5256f3e8b8c9fbd6919d55ff905d3eb068d55f175d8b98e83afdb1fc2941"},"schema_version":"1.0","source":{"id":"1211.6811","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.6811","created_at":"2026-05-18T02:57:15Z"},{"alias_kind":"arxiv_version","alias_value":"1211.6811v1","created_at":"2026-05-18T02:57:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.6811","created_at":"2026-05-18T02:57:15Z"},{"alias_kind":"pith_short_12","alias_value":"7TJJXNLMHLJI","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7TJJXNLMHLJIWKTG","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7TJJXNLM","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:f6467ac1464fc66ed5eb850f916c4fc27c581428d0b53101e693345c9470ed20","target":"graph","created_at":"2026-05-18T02:57:15Z","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":"Structural hierarchy and complex 3D architecture are characteristics of biological photonic designs that are challenging to reproduce in synthetic materials. Top-down lithography allows for designer patterning of arbitrary shapes, but is largely restricted to planar 2D structures. Self-assembly techniques facilitate easy fabrication of 3D photonic crystals, but controllable defect-integration is difficult. In this paper we combine the advantages of top-down and bottom-up fabrication, developing two techniques to deposit 2D-lithographically-patterned planar layers on top of or in between invers","authors_text":"Ian B. Burgess, Joanna Aizenberg, Marko Loncar","cross_cats":["cond-mat.mtrl-sci","cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-29T05:17:15Z","title":"Creating bio-inspired hierarchical 3D-2D photonic stacks via planar lithography on self-assembled inverse opals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.6811","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":"sha256:816bad48d453171a583985a71f0cbcc7889a3e353c00589f58017d198ff4a6b8","target":"record","created_at":"2026-05-18T02:57:15Z","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":"a4bc82d345cccc2aa385377415854dcc4e1258a96b36853e699627216f573053","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2012-11-29T05:17:15Z","title_canon_sha256":"75ba5256f3e8b8c9fbd6919d55ff905d3eb068d55f175d8b98e83afdb1fc2941"},"schema_version":"1.0","source":{"id":"1211.6811","kind":"arxiv","version":1}},"canonical_sha256":"fcd29bb56c3ad28b2a6612425379d9bcee8bb04c60cd4bf0a612f0803b2d796b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fcd29bb56c3ad28b2a6612425379d9bcee8bb04c60cd4bf0a612f0803b2d796b","first_computed_at":"2026-05-18T02:57:15.039791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:57:15.039791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"52OYDwv4idGle0uOGzQTT1sc+gDNTBmI2ktEbTAe24ZJAReB+YTADvTY0VuffDAXTClVIwkcil1zPanXjusKDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:57:15.040288Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.6811","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:816bad48d453171a583985a71f0cbcc7889a3e353c00589f58017d198ff4a6b8","sha256:f6467ac1464fc66ed5eb850f916c4fc27c581428d0b53101e693345c9470ed20"],"state_sha256":"f6d62ef9f468a012e954647d0c2400737f7bfebb721fb5cc5f5d7b5af00d265c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D5mlmNo62p2YEFdiEz9+BWONP5+zAQEw7u4xNmbKrNQTNnXKYgt0E3Q/fC1vgMPeharbQ/lYhIqFP+wKbZyrDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T06:55:44.468965Z","bundle_sha256":"d75b4c21e2866c9121a950b3c8d3d949ef8c32deaea56468f8dbd007d21ce796"}}