{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MJO6SFEYGQAVYOMZFPJRYDH6TJ","short_pith_number":"pith:MJO6SFEY","canonical_record":{"source":{"id":"1707.03673","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-07-12T12:24:48Z","cross_cats_sorted":[],"title_canon_sha256":"51ed7fdd199683b86a9e04312b4474c43c957e94f8b4c8111676c3e94c115506","abstract_canon_sha256":"09caed5352efdf31dd24e90862b12de934c379e0172aa28b600d36879d07cd53"},"schema_version":"1.0"},"canonical_sha256":"625de9149834015c39992bd31c0cfe9a6b6bd749c85eff62da366fb959cf48b4","source":{"kind":"arxiv","id":"1707.03673","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03673","created_at":"2026-05-18T00:40:25Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03673v1","created_at":"2026-05-18T00:40:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03673","created_at":"2026-05-18T00:40:25Z"},{"alias_kind":"pith_short_12","alias_value":"MJO6SFEYGQAV","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MJO6SFEYGQAVYOMZ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MJO6SFEY","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MJO6SFEYGQAVYOMZFPJRYDH6TJ","target":"record","payload":{"canonical_record":{"source":{"id":"1707.03673","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-07-12T12:24:48Z","cross_cats_sorted":[],"title_canon_sha256":"51ed7fdd199683b86a9e04312b4474c43c957e94f8b4c8111676c3e94c115506","abstract_canon_sha256":"09caed5352efdf31dd24e90862b12de934c379e0172aa28b600d36879d07cd53"},"schema_version":"1.0"},"canonical_sha256":"625de9149834015c39992bd31c0cfe9a6b6bd749c85eff62da366fb959cf48b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:25.348588Z","signature_b64":"kg898C6BUjV+/wMptsZfACaBFK3suZw++Gg4cOXXNsuwCvWU0JDXtvA10lnS15fQNJvWr69pTRZcMLzXo8T3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"625de9149834015c39992bd31c0cfe9a6b6bd749c85eff62da366fb959cf48b4","last_reissued_at":"2026-05-18T00:40:25.347961Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:25.347961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.03673","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":"2026-05-18T00:40:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TRLpJWw9P7zbgI42xtSsoaYYo6RVSchuzYE1pclEBYnJB13sgUkaPh1eV3WJES8eDSYU0A7+gslZ3R/o4GtvCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:11:07.668916Z"},"content_sha256":"a68e6d26cdffcab84961cd6191feb4fa059c74aeda2fae71541e5e74ab0cebea","schema_version":"1.0","event_id":"sha256:a68e6d26cdffcab84961cd6191feb4fa059c74aeda2fae71541e5e74ab0cebea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MJO6SFEYGQAVYOMZFPJRYDH6TJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Twist Coupled Kirigami Cellular Metamaterials and Mechanisms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"A. John Hart, Nigamaa Nayakanti, Sameh H. Tawfick","submitted_at":"2017-07-12T12:24:48Z","abstract_excerpt":"Manipulation of thin sheets by folding and cutting offers opportunity to engineer structures with novel mechanical properties, and to prescribe complex force-displacement relationships via material elasticity in combination with the trajectory imposed by the fold topology. We study the mechanics of cellular Kirigami that rotates upon compression, which we call Flexigami; the addition of diagonal cuts to an equivalent closed cell permits its reversible collapse without incurring significant tensile strains in its panels. Using finite-element modeling and experiment we show how the mechanics of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03673","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":"2026-05-18T00:40:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KjUkqeZD4/urQawLi2clcjw4jVwvs36ZsRNIeBOzeHZDOrdrFB7cGjqB2bBxGNn/CeQNCRPaEKFVdkgmJn6vBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:11:07.669357Z"},"content_sha256":"3e4122b549ff84870f3a18b2bee3bd00235069016fda08590cbfeefb2f4827e2","schema_version":"1.0","event_id":"sha256:3e4122b549ff84870f3a18b2bee3bd00235069016fda08590cbfeefb2f4827e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ/bundle.json","state_url":"https://pith.science/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ/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":"2026-06-22T12:11:07Z","links":{"resolver":"https://pith.science/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ","bundle":"https://pith.science/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ/bundle.json","state":"https://pith.science/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJO6SFEYGQAVYOMZFPJRYDH6TJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MJO6SFEYGQAVYOMZFPJRYDH6TJ","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":"09caed5352efdf31dd24e90862b12de934c379e0172aa28b600d36879d07cd53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-07-12T12:24:48Z","title_canon_sha256":"51ed7fdd199683b86a9e04312b4474c43c957e94f8b4c8111676c3e94c115506"},"schema_version":"1.0","source":{"id":"1707.03673","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03673","created_at":"2026-05-18T00:40:25Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03673v1","created_at":"2026-05-18T00:40:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03673","created_at":"2026-05-18T00:40:25Z"},{"alias_kind":"pith_short_12","alias_value":"MJO6SFEYGQAV","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MJO6SFEYGQAVYOMZ","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MJO6SFEY","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:3e4122b549ff84870f3a18b2bee3bd00235069016fda08590cbfeefb2f4827e2","target":"graph","created_at":"2026-05-18T00:40:25Z","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":"Manipulation of thin sheets by folding and cutting offers opportunity to engineer structures with novel mechanical properties, and to prescribe complex force-displacement relationships via material elasticity in combination with the trajectory imposed by the fold topology. We study the mechanics of cellular Kirigami that rotates upon compression, which we call Flexigami; the addition of diagonal cuts to an equivalent closed cell permits its reversible collapse without incurring significant tensile strains in its panels. Using finite-element modeling and experiment we show how the mechanics of ","authors_text":"A. John Hart, Nigamaa Nayakanti, Sameh H. Tawfick","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-07-12T12:24:48Z","title":"Twist Coupled Kirigami Cellular Metamaterials and Mechanisms"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03673","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:a68e6d26cdffcab84961cd6191feb4fa059c74aeda2fae71541e5e74ab0cebea","target":"record","created_at":"2026-05-18T00:40:25Z","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":"09caed5352efdf31dd24e90862b12de934c379e0172aa28b600d36879d07cd53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-07-12T12:24:48Z","title_canon_sha256":"51ed7fdd199683b86a9e04312b4474c43c957e94f8b4c8111676c3e94c115506"},"schema_version":"1.0","source":{"id":"1707.03673","kind":"arxiv","version":1}},"canonical_sha256":"625de9149834015c39992bd31c0cfe9a6b6bd749c85eff62da366fb959cf48b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"625de9149834015c39992bd31c0cfe9a6b6bd749c85eff62da366fb959cf48b4","first_computed_at":"2026-05-18T00:40:25.347961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:25.347961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kg898C6BUjV+/wMptsZfACaBFK3suZw++Gg4cOXXNsuwCvWU0JDXtvA10lnS15fQNJvWr69pTRZcMLzXo8T3Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:25.348588Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.03673","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a68e6d26cdffcab84961cd6191feb4fa059c74aeda2fae71541e5e74ab0cebea","sha256:3e4122b549ff84870f3a18b2bee3bd00235069016fda08590cbfeefb2f4827e2"],"state_sha256":"712dd41e8993ddaf897cecb0cbb7072d4ab040c0106cf362ae99930206a6776d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aNA5ogwsWLJfZ2MNvG+ocOkGLBgLO8P2OFjmLKmtgDtbUKlacuK8VE85xWwzLLGqsvIALQZ6kYRgVgR0umJzBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T12:11:07.671643Z","bundle_sha256":"8bde8e1dc61871930203701d69a8df5a648ac90f002a6c4ec6ce32ca135d40a1"}}