{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:N4VZGHRTYS4NYCQ43BMX54UXDX","short_pith_number":"pith:N4VZGHRT","canonical_record":{"source":{"id":"1302.3022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2013-02-13T09:06:42Z","cross_cats_sorted":["cond-mat.soft","physics.bio-ph","physics.med-ph"],"title_canon_sha256":"98f1be35f75438c04d73bc9e7d2d5d90757fbcf25a0721c94e224bc6c9b04ee4","abstract_canon_sha256":"933f08d8f12e8aa226d5eb7216b88990837d6e759f38eeb6059c1bb699b3bbb4"},"schema_version":"1.0"},"canonical_sha256":"6f2b931e33c4b8dc0a1cd8597ef2971de4b63143ab3238aa5146eed140d7bbac","source":{"kind":"arxiv","id":"1302.3022","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.3022","created_at":"2026-05-18T03:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"1302.3022v1","created_at":"2026-05-18T03:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.3022","created_at":"2026-05-18T03:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"N4VZGHRTYS4N","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"N4VZGHRTYS4NYCQ4","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"N4VZGHRT","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:N4VZGHRTYS4NYCQ43BMX54UXDX","target":"record","payload":{"canonical_record":{"source":{"id":"1302.3022","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2013-02-13T09:06:42Z","cross_cats_sorted":["cond-mat.soft","physics.bio-ph","physics.med-ph"],"title_canon_sha256":"98f1be35f75438c04d73bc9e7d2d5d90757fbcf25a0721c94e224bc6c9b04ee4","abstract_canon_sha256":"933f08d8f12e8aa226d5eb7216b88990837d6e759f38eeb6059c1bb699b3bbb4"},"schema_version":"1.0"},"canonical_sha256":"6f2b931e33c4b8dc0a1cd8597ef2971de4b63143ab3238aa5146eed140d7bbac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:33:49.004836Z","signature_b64":"SgPv7pa7490g9JlHiaVc2sKI5XEeAc68Wg1wbei0SFwnK2DA5t0pHbFrbHI5g5HbDfoac2DEH/9vY2oV/zONBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f2b931e33c4b8dc0a1cd8597ef2971de4b63143ab3238aa5146eed140d7bbac","last_reissued_at":"2026-05-18T03:33:49.003996Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:33:49.003996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.3022","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":"2026-05-18T03:33:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1/sdcQID++/KRvNIPQy7qaxnuz/9nQBRheR7GJWW74/Xjez/odsdjQ6GA36Q5lCU5qa6CZXOqkmKMYH1v9hUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:12:18.626850Z"},"content_sha256":"36b4613d410804f0bb3abe9f843fc7f6d432941de94b3e30b097b3dc9cf425f9","schema_version":"1.0","event_id":"sha256:36b4613d410804f0bb3abe9f843fc7f6d432941de94b3e30b097b3dc9cf425f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:N4VZGHRTYS4NYCQ43BMX54UXDX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterising the Anisotropic Mechanical Properties of Excised Human Skin","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","physics.bio-ph","physics.med-ph"],"primary_cat":"q-bio.TO","authors_text":"Aisling Ni Annaidh, Karine Bruyere, Melanie Ottenio, Michael D. Gilchrist, Michel Destrade","submitted_at":"2013-02-13T09:06:42Z","abstract_excerpt":"The mechanical properties of skin are important for a number of applications including surgery, dermatology, impact biomechanics and forensic science. In this study we have investigated the influence of location and orientation on the deformation characteristics of 56 samples of excised human skin. Uniaxial tensile tests were carried out at a strain rate of 0.012s$^{-1}$ on skin from the back. Digital Image Correlation was used for 2D strain measurement and a histological examination of the dermis was also performed. The mean ultimate tensile strength (UTS) was 21.6$\\pm$8.4MPa, the mean failur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.3022","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":"2026-05-18T03:33:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4IiHw+AKqx65+MntapPV25pjom0jH3YtHk5AcGNxTiIKApnkG/gwyaZDxNG/+ZlLLbGgwRp7Q8qa6la9DAm5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:12:18.627682Z"},"content_sha256":"489274f7e7268aa0af58dc2ab7a9ccaebffff83790250e149bee6e6a7c91dc86","schema_version":"1.0","event_id":"sha256:489274f7e7268aa0af58dc2ab7a9ccaebffff83790250e149bee6e6a7c91dc86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N4VZGHRTYS4NYCQ43BMX54UXDX/bundle.json","state_url":"https://pith.science/pith/N4VZGHRTYS4NYCQ43BMX54UXDX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N4VZGHRTYS4NYCQ43BMX54UXDX/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":"2026-06-10T07:12:18Z","links":{"resolver":"https://pith.science/pith/N4VZGHRTYS4NYCQ43BMX54UXDX","bundle":"https://pith.science/pith/N4VZGHRTYS4NYCQ43BMX54UXDX/bundle.json","state":"https://pith.science/pith/N4VZGHRTYS4NYCQ43BMX54UXDX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N4VZGHRTYS4NYCQ43BMX54UXDX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:N4VZGHRTYS4NYCQ43BMX54UXDX","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":"933f08d8f12e8aa226d5eb7216b88990837d6e759f38eeb6059c1bb699b3bbb4","cross_cats_sorted":["cond-mat.soft","physics.bio-ph","physics.med-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2013-02-13T09:06:42Z","title_canon_sha256":"98f1be35f75438c04d73bc9e7d2d5d90757fbcf25a0721c94e224bc6c9b04ee4"},"schema_version":"1.0","source":{"id":"1302.3022","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.3022","created_at":"2026-05-18T03:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"1302.3022v1","created_at":"2026-05-18T03:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.3022","created_at":"2026-05-18T03:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"N4VZGHRTYS4N","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"N4VZGHRTYS4NYCQ4","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"N4VZGHRT","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:489274f7e7268aa0af58dc2ab7a9ccaebffff83790250e149bee6e6a7c91dc86","target":"graph","created_at":"2026-05-18T03:33:49Z","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 mechanical properties of skin are important for a number of applications including surgery, dermatology, impact biomechanics and forensic science. In this study we have investigated the influence of location and orientation on the deformation characteristics of 56 samples of excised human skin. Uniaxial tensile tests were carried out at a strain rate of 0.012s$^{-1}$ on skin from the back. Digital Image Correlation was used for 2D strain measurement and a histological examination of the dermis was also performed. The mean ultimate tensile strength (UTS) was 21.6$\\pm$8.4MPa, the mean failur","authors_text":"Aisling Ni Annaidh, Karine Bruyere, Melanie Ottenio, Michael D. Gilchrist, Michel Destrade","cross_cats":["cond-mat.soft","physics.bio-ph","physics.med-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2013-02-13T09:06:42Z","title":"Characterising the Anisotropic Mechanical Properties of Excised Human Skin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.3022","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":"sha256:36b4613d410804f0bb3abe9f843fc7f6d432941de94b3e30b097b3dc9cf425f9","target":"record","created_at":"2026-05-18T03:33:49Z","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":"933f08d8f12e8aa226d5eb7216b88990837d6e759f38eeb6059c1bb699b3bbb4","cross_cats_sorted":["cond-mat.soft","physics.bio-ph","physics.med-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2013-02-13T09:06:42Z","title_canon_sha256":"98f1be35f75438c04d73bc9e7d2d5d90757fbcf25a0721c94e224bc6c9b04ee4"},"schema_version":"1.0","source":{"id":"1302.3022","kind":"arxiv","version":1}},"canonical_sha256":"6f2b931e33c4b8dc0a1cd8597ef2971de4b63143ab3238aa5146eed140d7bbac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f2b931e33c4b8dc0a1cd8597ef2971de4b63143ab3238aa5146eed140d7bbac","first_computed_at":"2026-05-18T03:33:49.003996Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:33:49.003996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SgPv7pa7490g9JlHiaVc2sKI5XEeAc68Wg1wbei0SFwnK2DA5t0pHbFrbHI5g5HbDfoac2DEH/9vY2oV/zONBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:33:49.004836Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.3022","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36b4613d410804f0bb3abe9f843fc7f6d432941de94b3e30b097b3dc9cf425f9","sha256:489274f7e7268aa0af58dc2ab7a9ccaebffff83790250e149bee6e6a7c91dc86"],"state_sha256":"d571f1db985f31f0be66fa39f7f05d089f7c5cdaccd81d0a371a93b96b91d825"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lPxTenjV3DBUuageJdfXynQyj0yC1dy15IFDgJNgkiyHmVryscGABPUNbwkfknP51fJtb2iFviA3eCErRi8SBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T07:12:18.631780Z","bundle_sha256":"b74f59ea24c8f6590567e683f74da7861dfabc9f480a65098b77bfe8a0fe2fe0"}}