{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:N5FQC52UEG6HQVIVNG4SMUJY7K","short_pith_number":"pith:N5FQC52U","canonical_record":{"source":{"id":"1404.6448","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2014-04-25T15:03:15Z","cross_cats_sorted":[],"title_canon_sha256":"59720c91c9a4f74e8b56c0242a9ed11ec5c115f38439e20c0bd0d548959d3fc5","abstract_canon_sha256":"34710aeb036d04f5ce8dcea5a93ee0b86597d4143786aabb4b99e8e1837e2b14"},"schema_version":"1.0"},"canonical_sha256":"6f4b01775421bc78551569b9265138faafe3b4d0d229f6f9c91de7530e86a214","source":{"kind":"arxiv","id":"1404.6448","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6448","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6448v2","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6448","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"pith_short_12","alias_value":"N5FQC52UEG6H","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"N5FQC52UEG6HQVIV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"N5FQC52U","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:N5FQC52UEG6HQVIVNG4SMUJY7K","target":"record","payload":{"canonical_record":{"source":{"id":"1404.6448","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2014-04-25T15:03:15Z","cross_cats_sorted":[],"title_canon_sha256":"59720c91c9a4f74e8b56c0242a9ed11ec5c115f38439e20c0bd0d548959d3fc5","abstract_canon_sha256":"34710aeb036d04f5ce8dcea5a93ee0b86597d4143786aabb4b99e8e1837e2b14"},"schema_version":"1.0"},"canonical_sha256":"6f4b01775421bc78551569b9265138faafe3b4d0d229f6f9c91de7530e86a214","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:43.875417Z","signature_b64":"tJ3smAIxgWjqzRk1bPiU5FUcgAGthrGqmVgykVtIQ0mQiSFR4UbS8mTrC6GO79OCYoqRgQI/IzXGLQDtQRKMDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f4b01775421bc78551569b9265138faafe3b4d0d229f6f9c91de7530e86a214","last_reissued_at":"2026-05-18T01:36:43.874949Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:43.874949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.6448","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:36:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"So30fBBLYxg+VUJl2ZXLPpA7fwMh3KEBF2PWqVG+VoFo0luAMq7h4K5HrWtVxq5cKHF/bB8ave706DN0xvXqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T12:58:06.301860Z"},"content_sha256":"26e603da951479fc3bc1bc71d16e85e0d64dbeb103f5823f64286bf9d6f23969","schema_version":"1.0","event_id":"sha256:26e603da951479fc3bc1bc71d16e85e0d64dbeb103f5823f64286bf9d6f23969"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:N5FQC52UEG6HQVIVNG4SMUJY7K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A modular approach to adaptive structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.QM","authors_text":"C. H\\\"uhne, Manuel Pagitz, Markus Pagitz","submitted_at":"2014-04-25T15:03:15Z","abstract_excerpt":"A remarkable property of nastic, shape changing plants is their complete fusion between actuators and structure. This is achieved by combining a large number of cells whose geometry, internal pressures and material properties are optimized for a given set of target shapes and stiffness requirements. An advantage of such a fusion is that cell walls are prestressed by cell pressures which increases, decreases the overall structural stiffness, weight. Inspired by the nastic movement of plants, Pagitz et al. 2012 Bioinspir. Biomim. 7 published a novel concept for pressure actuated cellular structu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6448","kind":"arxiv","version":2},"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":"2026-05-18T01:36:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tXZAUvKHtEQAL12GJ0Fh4Vh/AAsYPhE1FMEqTYGkjipe8uf4JbAbfUAx8tbB8BK4g/m5lTZ4cGMjpzZP23hjBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T12:58:06.302203Z"},"content_sha256":"891bd743bfeac9b3e612322c649845249655644d81d47a36a1012bf7e2b1b3d4","schema_version":"1.0","event_id":"sha256:891bd743bfeac9b3e612322c649845249655644d81d47a36a1012bf7e2b1b3d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N5FQC52UEG6HQVIVNG4SMUJY7K/bundle.json","state_url":"https://pith.science/pith/N5FQC52UEG6HQVIVNG4SMUJY7K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N5FQC52UEG6HQVIVNG4SMUJY7K/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":"2026-06-23T12:58:06Z","links":{"resolver":"https://pith.science/pith/N5FQC52UEG6HQVIVNG4SMUJY7K","bundle":"https://pith.science/pith/N5FQC52UEG6HQVIVNG4SMUJY7K/bundle.json","state":"https://pith.science/pith/N5FQC52UEG6HQVIVNG4SMUJY7K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N5FQC52UEG6HQVIVNG4SMUJY7K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:N5FQC52UEG6HQVIVNG4SMUJY7K","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":"34710aeb036d04f5ce8dcea5a93ee0b86597d4143786aabb4b99e8e1837e2b14","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2014-04-25T15:03:15Z","title_canon_sha256":"59720c91c9a4f74e8b56c0242a9ed11ec5c115f38439e20c0bd0d548959d3fc5"},"schema_version":"1.0","source":{"id":"1404.6448","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6448","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6448v2","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6448","created_at":"2026-05-18T01:36:43Z"},{"alias_kind":"pith_short_12","alias_value":"N5FQC52UEG6H","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"N5FQC52UEG6HQVIV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"N5FQC52U","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:891bd743bfeac9b3e612322c649845249655644d81d47a36a1012bf7e2b1b3d4","target":"graph","created_at":"2026-05-18T01:36:43Z","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":"A remarkable property of nastic, shape changing plants is their complete fusion between actuators and structure. This is achieved by combining a large number of cells whose geometry, internal pressures and material properties are optimized for a given set of target shapes and stiffness requirements. An advantage of such a fusion is that cell walls are prestressed by cell pressures which increases, decreases the overall structural stiffness, weight. Inspired by the nastic movement of plants, Pagitz et al. 2012 Bioinspir. Biomim. 7 published a novel concept for pressure actuated cellular structu","authors_text":"C. H\\\"uhne, Manuel Pagitz, Markus Pagitz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2014-04-25T15:03:15Z","title":"A modular approach to adaptive structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6448","kind":"arxiv","version":2},"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":"sha256:26e603da951479fc3bc1bc71d16e85e0d64dbeb103f5823f64286bf9d6f23969","target":"record","created_at":"2026-05-18T01:36:43Z","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":"34710aeb036d04f5ce8dcea5a93ee0b86597d4143786aabb4b99e8e1837e2b14","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.QM","submitted_at":"2014-04-25T15:03:15Z","title_canon_sha256":"59720c91c9a4f74e8b56c0242a9ed11ec5c115f38439e20c0bd0d548959d3fc5"},"schema_version":"1.0","source":{"id":"1404.6448","kind":"arxiv","version":2}},"canonical_sha256":"6f4b01775421bc78551569b9265138faafe3b4d0d229f6f9c91de7530e86a214","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f4b01775421bc78551569b9265138faafe3b4d0d229f6f9c91de7530e86a214","first_computed_at":"2026-05-18T01:36:43.874949Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:43.874949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tJ3smAIxgWjqzRk1bPiU5FUcgAGthrGqmVgykVtIQ0mQiSFR4UbS8mTrC6GO79OCYoqRgQI/IzXGLQDtQRKMDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:43.875417Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.6448","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26e603da951479fc3bc1bc71d16e85e0d64dbeb103f5823f64286bf9d6f23969","sha256:891bd743bfeac9b3e612322c649845249655644d81d47a36a1012bf7e2b1b3d4"],"state_sha256":"0c216cfbdd5783178c47df15428698dbf42836307ca4343edba6fd887a926b40"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9P/u2e4xTSDpwJfVYE0S9tMelWW4sPCOComglLp6D44ZzzcTYFAv7AlT0EjGN9PrW0sB24Oihu2m8obHJ8ZpAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T12:58:06.304191Z","bundle_sha256":"e935990565644cb98c7d4034e78d92904634d34f7343abf2b66dd039f6bbcb75"}}