{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:VHWZRGABCEOECVRTSFZX26HR5B","short_pith_number":"pith:VHWZRGAB","canonical_record":{"source":{"id":"1402.4319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2014-02-18T12:59:59Z","cross_cats_sorted":["q-bio.CB"],"title_canon_sha256":"d04fea369f4e3e27e7d3a77ef613bd9f1401eea7cf31bc4db0fabf209597fbc6","abstract_canon_sha256":"811f957e6a8d48fd07c38e7745b8ce35bfeec81461a89308fe0c4720537d2087"},"schema_version":"1.0"},"canonical_sha256":"a9ed989801111c41563391737d78f1e8540f8335f366e1c9586215175106fd55","source":{"kind":"arxiv","id":"1402.4319","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.4319","created_at":"2026-05-18T02:58:44Z"},{"alias_kind":"arxiv_version","alias_value":"1402.4319v1","created_at":"2026-05-18T02:58:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.4319","created_at":"2026-05-18T02:58:44Z"},{"alias_kind":"pith_short_12","alias_value":"VHWZRGABCEOE","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VHWZRGABCEOECVRT","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VHWZRGAB","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:VHWZRGABCEOECVRTSFZX26HR5B","target":"record","payload":{"canonical_record":{"source":{"id":"1402.4319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2014-02-18T12:59:59Z","cross_cats_sorted":["q-bio.CB"],"title_canon_sha256":"d04fea369f4e3e27e7d3a77ef613bd9f1401eea7cf31bc4db0fabf209597fbc6","abstract_canon_sha256":"811f957e6a8d48fd07c38e7745b8ce35bfeec81461a89308fe0c4720537d2087"},"schema_version":"1.0"},"canonical_sha256":"a9ed989801111c41563391737d78f1e8540f8335f366e1c9586215175106fd55","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:58:44.234631Z","signature_b64":"+WYhog7d5RNbJJ8jxIo1Uw5zgsH5OjPac3yE7zaNNP5ekiOXOKoUnAJb4YvSJspPpSdKY8mfiyoSnSrG2K2WCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9ed989801111c41563391737d78f1e8540f8335f366e1c9586215175106fd55","last_reissued_at":"2026-05-18T02:58:44.233895Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:58:44.233895Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.4319","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":"2026-05-18T02:58:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gzogc3fS6NPMukcVZMtk+ZQ0eY375vdgcTaK8PPY409SKucCMhKzJsBIaeHUwBL9ikzCFua4NuOB4VsAxUEgDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:14:20.131157Z"},"content_sha256":"429eff35f41b303fda1c0cbe1d6fbba73989b5c2bdfb0bfda3d3b76f6a2b717d","schema_version":"1.0","event_id":"sha256:429eff35f41b303fda1c0cbe1d6fbba73989b5c2bdfb0bfda3d3b76f6a2b717d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:VHWZRGABCEOECVRTSFZX26HR5B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robustness of force and stress inference in an epithelial tissue","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.CB"],"primary_cat":"q-bio.TO","authors_text":"F. Graner, K. Sugimura, P. Marcq, S. Ishihara, Y. Bella\\\"iche","submitted_at":"2014-02-18T12:59:59Z","abstract_excerpt":"During morphogenesis, the shape of a tissue emerges from collective cellular behaviors, which are in part regulated by mechanical and biochemical interactions between cells. Quantification of force and stress is therefore necessary to analyze the mechanisms controlling tissue morphogenesis. Recently, a mechanical measurement method based on force inference from cell shapes and connectivity has been developed. It is non-invasive, and can provide space-time maps of force and stress within an epithelial tissue, up to prefactors. We previously performed a comparative study of three force-inference"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.4319","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":"2026-05-18T02:58:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8iRIC7GscKVSPOwHIVBd3GURNat8EBkf4UYB/iGTrpkxamgiY7quC/Lkuv6OO2FIXe4HEjl875yQjbLItz+YCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:14:20.131964Z"},"content_sha256":"b01ebebdbd556467d9a30a33d4005af235253091356d84ebb22123c377ea5e05","schema_version":"1.0","event_id":"sha256:b01ebebdbd556467d9a30a33d4005af235253091356d84ebb22123c377ea5e05"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VHWZRGABCEOECVRTSFZX26HR5B/bundle.json","state_url":"https://pith.science/pith/VHWZRGABCEOECVRTSFZX26HR5B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VHWZRGABCEOECVRTSFZX26HR5B/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":"2026-06-06T15:14:20Z","links":{"resolver":"https://pith.science/pith/VHWZRGABCEOECVRTSFZX26HR5B","bundle":"https://pith.science/pith/VHWZRGABCEOECVRTSFZX26HR5B/bundle.json","state":"https://pith.science/pith/VHWZRGABCEOECVRTSFZX26HR5B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VHWZRGABCEOECVRTSFZX26HR5B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:VHWZRGABCEOECVRTSFZX26HR5B","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":"811f957e6a8d48fd07c38e7745b8ce35bfeec81461a89308fe0c4720537d2087","cross_cats_sorted":["q-bio.CB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2014-02-18T12:59:59Z","title_canon_sha256":"d04fea369f4e3e27e7d3a77ef613bd9f1401eea7cf31bc4db0fabf209597fbc6"},"schema_version":"1.0","source":{"id":"1402.4319","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.4319","created_at":"2026-05-18T02:58:44Z"},{"alias_kind":"arxiv_version","alias_value":"1402.4319v1","created_at":"2026-05-18T02:58:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.4319","created_at":"2026-05-18T02:58:44Z"},{"alias_kind":"pith_short_12","alias_value":"VHWZRGABCEOE","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"VHWZRGABCEOECVRT","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"VHWZRGAB","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:b01ebebdbd556467d9a30a33d4005af235253091356d84ebb22123c377ea5e05","target":"graph","created_at":"2026-05-18T02:58:44Z","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":"During morphogenesis, the shape of a tissue emerges from collective cellular behaviors, which are in part regulated by mechanical and biochemical interactions between cells. Quantification of force and stress is therefore necessary to analyze the mechanisms controlling tissue morphogenesis. Recently, a mechanical measurement method based on force inference from cell shapes and connectivity has been developed. It is non-invasive, and can provide space-time maps of force and stress within an epithelial tissue, up to prefactors. We previously performed a comparative study of three force-inference","authors_text":"F. Graner, K. Sugimura, P. Marcq, S. Ishihara, Y. Bella\\\"iche","cross_cats":["q-bio.CB"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2014-02-18T12:59:59Z","title":"Robustness of force and stress inference in an epithelial tissue"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.4319","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":"sha256:429eff35f41b303fda1c0cbe1d6fbba73989b5c2bdfb0bfda3d3b76f6a2b717d","target":"record","created_at":"2026-05-18T02:58:44Z","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":"811f957e6a8d48fd07c38e7745b8ce35bfeec81461a89308fe0c4720537d2087","cross_cats_sorted":["q-bio.CB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.TO","submitted_at":"2014-02-18T12:59:59Z","title_canon_sha256":"d04fea369f4e3e27e7d3a77ef613bd9f1401eea7cf31bc4db0fabf209597fbc6"},"schema_version":"1.0","source":{"id":"1402.4319","kind":"arxiv","version":1}},"canonical_sha256":"a9ed989801111c41563391737d78f1e8540f8335f366e1c9586215175106fd55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9ed989801111c41563391737d78f1e8540f8335f366e1c9586215175106fd55","first_computed_at":"2026-05-18T02:58:44.233895Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:58:44.233895Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+WYhog7d5RNbJJ8jxIo1Uw5zgsH5OjPac3yE7zaNNP5ekiOXOKoUnAJb4YvSJspPpSdKY8mfiyoSnSrG2K2WCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:58:44.234631Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.4319","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:429eff35f41b303fda1c0cbe1d6fbba73989b5c2bdfb0bfda3d3b76f6a2b717d","sha256:b01ebebdbd556467d9a30a33d4005af235253091356d84ebb22123c377ea5e05"],"state_sha256":"0b22acc5af39201d331b9e8f2d36e3da6eae83cdf399f9a6daa5e8579bb9e120"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dmMydVppfU5y9epJA8w27s2JIC7u33hrtr6KWpKs8ncKvUWh1YavvzdjTQuOnIn5CaxG2fVFRk5tSHhknS5FCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:14:20.136821Z","bundle_sha256":"c43552ec7c60934820fe49b56c731b94c8def6e16eb08fb395a9c61850ec79a3"}}