{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YU52JEHBT7OOLT4R2P4T47HSZO","short_pith_number":"pith:YU52JEHB","canonical_record":{"source":{"id":"1808.04892","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-08-14T20:57:38Z","cross_cats_sorted":[],"title_canon_sha256":"fda94089ddddba9bc93d4705e12bc424e7e17f221d45987a88537839b4a288cb","abstract_canon_sha256":"255a9c1f8c61032aaec30a20c024027919a189a014cd386a9c530715397c501a"},"schema_version":"1.0"},"canonical_sha256":"c53ba490e19fdce5cf91d3f93e7cf2cbb2c8f86af382bd2523cfadb9453f3a92","source":{"kind":"arxiv","id":"1808.04892","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04892","created_at":"2026-05-18T00:08:02Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04892v1","created_at":"2026-05-18T00:08:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04892","created_at":"2026-05-18T00:08:02Z"},{"alias_kind":"pith_short_12","alias_value":"YU52JEHBT7OO","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YU52JEHBT7OOLT4R","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YU52JEHB","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YU52JEHBT7OOLT4R2P4T47HSZO","target":"record","payload":{"canonical_record":{"source":{"id":"1808.04892","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-08-14T20:57:38Z","cross_cats_sorted":[],"title_canon_sha256":"fda94089ddddba9bc93d4705e12bc424e7e17f221d45987a88537839b4a288cb","abstract_canon_sha256":"255a9c1f8c61032aaec30a20c024027919a189a014cd386a9c530715397c501a"},"schema_version":"1.0"},"canonical_sha256":"c53ba490e19fdce5cf91d3f93e7cf2cbb2c8f86af382bd2523cfadb9453f3a92","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:02.277220Z","signature_b64":"tr10noZvy8vTa+fKE7n3zKybKjwQYz3hc985oc0HpZHkD9B8lyE81g1h8dONc6LM3s/gtVEFlgMoQv9HWKykAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c53ba490e19fdce5cf91d3f93e7cf2cbb2c8f86af382bd2523cfadb9453f3a92","last_reissued_at":"2026-05-18T00:08:02.276518Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:02.276518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.04892","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":"2026-05-18T00:08:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KMCF6/Mi2W1HsK/B3LX0b8XE7ojrvws+M4929vbWAzruM9ocn8NLrD4a7v/k/mTSOQ6Xz7DNX50NtyuwatdbCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:24:59.792695Z"},"content_sha256":"9f31a34c754563d0ef506b7e91d88f7e5680759074f70b9994c09941b9e0521a","schema_version":"1.0","event_id":"sha256:9f31a34c754563d0ef506b7e91d88f7e5680759074f70b9994c09941b9e0521a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YU52JEHBT7OOLT4R2P4T47HSZO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Local Mechanical Description of an Elastic Fold","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Fr\\'ed\\'eric Lechenault, Mokhtar Adda-Bedia, Th\\'eo Jules","submitted_at":"2018-08-14T20:57:38Z","abstract_excerpt":"To go beyond the simple model for the fold as two flexible surfaces or faces linked by a crease that behaves as an elastic hinge, we carefully shape and anneal a crease within a polymer sheet and study its mechanical response. First, we carry out an experimental study that consists on recording both the shape of the fold in various loading configurations and the associated force needed to deform it. Then, an elastic model of the fold is built upon a continuous description of both the faces and the crease as a thin sheet with a non flat reference configuration. The comparison between the model "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04892","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":"2026-05-18T00:08:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VvkiFS6ENONQaCBOutpk8rgDeA9yaTgU5E/dOr0YMMsIXJ5iq0F4qggSP/lpUAB7RAm4B/C26EFRvVjF7kbeCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T12:24:59.793350Z"},"content_sha256":"a64629edd21f99413d7b6fa5e49cc3f73a82d1f99694490c1f6eec64a5c5ff76","schema_version":"1.0","event_id":"sha256:a64629edd21f99413d7b6fa5e49cc3f73a82d1f99694490c1f6eec64a5c5ff76"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YU52JEHBT7OOLT4R2P4T47HSZO/bundle.json","state_url":"https://pith.science/pith/YU52JEHBT7OOLT4R2P4T47HSZO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YU52JEHBT7OOLT4R2P4T47HSZO/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":"2026-05-31T12:24:59Z","links":{"resolver":"https://pith.science/pith/YU52JEHBT7OOLT4R2P4T47HSZO","bundle":"https://pith.science/pith/YU52JEHBT7OOLT4R2P4T47HSZO/bundle.json","state":"https://pith.science/pith/YU52JEHBT7OOLT4R2P4T47HSZO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YU52JEHBT7OOLT4R2P4T47HSZO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YU52JEHBT7OOLT4R2P4T47HSZO","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":"255a9c1f8c61032aaec30a20c024027919a189a014cd386a9c530715397c501a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-08-14T20:57:38Z","title_canon_sha256":"fda94089ddddba9bc93d4705e12bc424e7e17f221d45987a88537839b4a288cb"},"schema_version":"1.0","source":{"id":"1808.04892","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04892","created_at":"2026-05-18T00:08:02Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04892v1","created_at":"2026-05-18T00:08:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04892","created_at":"2026-05-18T00:08:02Z"},{"alias_kind":"pith_short_12","alias_value":"YU52JEHBT7OO","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YU52JEHBT7OOLT4R","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YU52JEHB","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:a64629edd21f99413d7b6fa5e49cc3f73a82d1f99694490c1f6eec64a5c5ff76","target":"graph","created_at":"2026-05-18T00:08:02Z","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":"To go beyond the simple model for the fold as two flexible surfaces or faces linked by a crease that behaves as an elastic hinge, we carefully shape and anneal a crease within a polymer sheet and study its mechanical response. First, we carry out an experimental study that consists on recording both the shape of the fold in various loading configurations and the associated force needed to deform it. Then, an elastic model of the fold is built upon a continuous description of both the faces and the crease as a thin sheet with a non flat reference configuration. The comparison between the model ","authors_text":"Fr\\'ed\\'eric Lechenault, Mokhtar Adda-Bedia, Th\\'eo Jules","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-08-14T20:57:38Z","title":"Local Mechanical Description of an Elastic Fold"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04892","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":"sha256:9f31a34c754563d0ef506b7e91d88f7e5680759074f70b9994c09941b9e0521a","target":"record","created_at":"2026-05-18T00:08:02Z","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":"255a9c1f8c61032aaec30a20c024027919a189a014cd386a9c530715397c501a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-08-14T20:57:38Z","title_canon_sha256":"fda94089ddddba9bc93d4705e12bc424e7e17f221d45987a88537839b4a288cb"},"schema_version":"1.0","source":{"id":"1808.04892","kind":"arxiv","version":1}},"canonical_sha256":"c53ba490e19fdce5cf91d3f93e7cf2cbb2c8f86af382bd2523cfadb9453f3a92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c53ba490e19fdce5cf91d3f93e7cf2cbb2c8f86af382bd2523cfadb9453f3a92","first_computed_at":"2026-05-18T00:08:02.276518Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:02.276518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tr10noZvy8vTa+fKE7n3zKybKjwQYz3hc985oc0HpZHkD9B8lyE81g1h8dONc6LM3s/gtVEFlgMoQv9HWKykAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:02.277220Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.04892","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f31a34c754563d0ef506b7e91d88f7e5680759074f70b9994c09941b9e0521a","sha256:a64629edd21f99413d7b6fa5e49cc3f73a82d1f99694490c1f6eec64a5c5ff76"],"state_sha256":"0bf56ec5d45c1d6aa6ef32bdbcf817d482b8ed672e29bf859a85c58d940cbb58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c9TtHPDTyk4hH57iXQ8KJXpewylf51dXUKx58KZ1SbaE7PWrG1qoxo794yU71jKgjWOIxzYIi/j5mnGtvVYkBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T12:24:59.797000Z","bundle_sha256":"d73118ae254ae57822a86d9b21e9c695039a80af2fd43f09e45a197155bff917"}}