{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2JUQHLMNAWIXMC5XPIJJV7BA2K","short_pith_number":"pith:2JUQHLMN","canonical_record":{"source":{"id":"1802.05075","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2018-02-14T12:49:29Z","cross_cats_sorted":[],"title_canon_sha256":"0f7b76dc2840bd6a5fe53e7ece4335710495c8ffe7842cc45070764704a34dd4","abstract_canon_sha256":"c4710600e255e035ff58eaf668391b64518a1b3c1d40094206a8db44de6743de"},"schema_version":"1.0"},"canonical_sha256":"d26903ad8d0591760bb77a129afc20d2bdb7c29f2a53d4b6b892e0ec5d9bad7a","source":{"kind":"arxiv","id":"1802.05075","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.05075","created_at":"2026-05-18T00:00:57Z"},{"alias_kind":"arxiv_version","alias_value":"1802.05075v1","created_at":"2026-05-18T00:00:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.05075","created_at":"2026-05-18T00:00:57Z"},{"alias_kind":"pith_short_12","alias_value":"2JUQHLMNAWIX","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2JUQHLMNAWIXMC5X","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2JUQHLMN","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2JUQHLMNAWIXMC5XPIJJV7BA2K","target":"record","payload":{"canonical_record":{"source":{"id":"1802.05075","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2018-02-14T12:49:29Z","cross_cats_sorted":[],"title_canon_sha256":"0f7b76dc2840bd6a5fe53e7ece4335710495c8ffe7842cc45070764704a34dd4","abstract_canon_sha256":"c4710600e255e035ff58eaf668391b64518a1b3c1d40094206a8db44de6743de"},"schema_version":"1.0"},"canonical_sha256":"d26903ad8d0591760bb77a129afc20d2bdb7c29f2a53d4b6b892e0ec5d9bad7a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:57.375810Z","signature_b64":"Nrr9H6aK7y1opxah09l2N6vrVBpbpvja+sYrk9WKTv9r4PCdmNiX8udWLwFTFwTIjqjxZzFvO0lqCOGydhADBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d26903ad8d0591760bb77a129afc20d2bdb7c29f2a53d4b6b892e0ec5d9bad7a","last_reissued_at":"2026-05-18T00:00:57.375186Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:57.375186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.05075","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":"2026-05-18T00:00:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CnVMMDy+NYK8z4xK2m3kqRMHDteyu5BDSUEESzul8wHP8YbTNwvvcIxxqFNJ5lYXg1wYnNIpzT8QSKenIUdmDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:16:31.019026Z"},"content_sha256":"5040d5edb0712da9dcda1e9c6716ee514dce6a28efe2dab4244e79129a6eca69","schema_version":"1.0","event_id":"sha256:5040d5edb0712da9dcda1e9c6716ee514dce6a28efe2dab4244e79129a6eca69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2JUQHLMNAWIXMC5XPIJJV7BA2K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear elasticity of the extracellular matrix fibers facilitates efficient inter-cellular mechanical communication","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.bio-ph","authors_text":"Ayelet Lesman, Hanan Tokash, Mirit Sharabi, Oren Tchaicheeyan, Ortal Shelah, Ran S Sopher, Sari Natan","submitted_at":"2018-02-14T12:49:29Z","abstract_excerpt":"Biological cells embedded in fibrous matrices have been observed to form inter-cellular bands of dense and aligned fibers, through which they mechanically interact over long distances. Such matrix-mediated cellular interactions have been shown to regulate a variety of biological processes. The current study was aimed at exploring the effects of elastic nonlinearity of the fibers contained in the extracellular matrix (ECM) on the transmission of mechanical loads between contracting cells. Based on our biological experiments, we developed a finite-element model of two contracting cells embedded "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.05075","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":"2026-05-18T00:00:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0mpxQNXIWNAVn0r2nJtc/+cijDM2A3OvYmXYBSW7v/Kv8WzKiWpC1OzZJHamJ6URvfbgR4tFepVZaCVsCulNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:16:31.019394Z"},"content_sha256":"498d8d93846eff094a4a13acf3346ebcc014436e2a30f842338b8a200f2340a3","schema_version":"1.0","event_id":"sha256:498d8d93846eff094a4a13acf3346ebcc014436e2a30f842338b8a200f2340a3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K/bundle.json","state_url":"https://pith.science/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K/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":"2026-05-31T17:16:31Z","links":{"resolver":"https://pith.science/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K","bundle":"https://pith.science/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K/bundle.json","state":"https://pith.science/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2JUQHLMNAWIXMC5XPIJJV7BA2K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2JUQHLMNAWIXMC5XPIJJV7BA2K","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":"c4710600e255e035ff58eaf668391b64518a1b3c1d40094206a8db44de6743de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2018-02-14T12:49:29Z","title_canon_sha256":"0f7b76dc2840bd6a5fe53e7ece4335710495c8ffe7842cc45070764704a34dd4"},"schema_version":"1.0","source":{"id":"1802.05075","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.05075","created_at":"2026-05-18T00:00:57Z"},{"alias_kind":"arxiv_version","alias_value":"1802.05075v1","created_at":"2026-05-18T00:00:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.05075","created_at":"2026-05-18T00:00:57Z"},{"alias_kind":"pith_short_12","alias_value":"2JUQHLMNAWIX","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2JUQHLMNAWIXMC5X","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2JUQHLMN","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:498d8d93846eff094a4a13acf3346ebcc014436e2a30f842338b8a200f2340a3","target":"graph","created_at":"2026-05-18T00:00:57Z","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":"Biological cells embedded in fibrous matrices have been observed to form inter-cellular bands of dense and aligned fibers, through which they mechanically interact over long distances. Such matrix-mediated cellular interactions have been shown to regulate a variety of biological processes. The current study was aimed at exploring the effects of elastic nonlinearity of the fibers contained in the extracellular matrix (ECM) on the transmission of mechanical loads between contracting cells. Based on our biological experiments, we developed a finite-element model of two contracting cells embedded ","authors_text":"Ayelet Lesman, Hanan Tokash, Mirit Sharabi, Oren Tchaicheeyan, Ortal Shelah, Ran S Sopher, Sari Natan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2018-02-14T12:49:29Z","title":"Nonlinear elasticity of the extracellular matrix fibers facilitates efficient inter-cellular mechanical communication"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.05075","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":"sha256:5040d5edb0712da9dcda1e9c6716ee514dce6a28efe2dab4244e79129a6eca69","target":"record","created_at":"2026-05-18T00:00:57Z","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":"c4710600e255e035ff58eaf668391b64518a1b3c1d40094206a8db44de6743de","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2018-02-14T12:49:29Z","title_canon_sha256":"0f7b76dc2840bd6a5fe53e7ece4335710495c8ffe7842cc45070764704a34dd4"},"schema_version":"1.0","source":{"id":"1802.05075","kind":"arxiv","version":1}},"canonical_sha256":"d26903ad8d0591760bb77a129afc20d2bdb7c29f2a53d4b6b892e0ec5d9bad7a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d26903ad8d0591760bb77a129afc20d2bdb7c29f2a53d4b6b892e0ec5d9bad7a","first_computed_at":"2026-05-18T00:00:57.375186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:57.375186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Nrr9H6aK7y1opxah09l2N6vrVBpbpvja+sYrk9WKTv9r4PCdmNiX8udWLwFTFwTIjqjxZzFvO0lqCOGydhADBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:57.375810Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.05075","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5040d5edb0712da9dcda1e9c6716ee514dce6a28efe2dab4244e79129a6eca69","sha256:498d8d93846eff094a4a13acf3346ebcc014436e2a30f842338b8a200f2340a3"],"state_sha256":"1cb40a9c0298cfcba6977b33649bf51c1120aa5e6d09c8c1d5d8589ee5d18cd3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OxWfDwYkl0BgQ/Kn2RbEBA3hzSn+s9Z8ue43RLf1VImsX6YEy1ULELxPIcNcBKTkxua51JaTHMRDSHSZYS1hBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T17:16:31.021727Z","bundle_sha256":"f74a2e979d041e929aff18d08eec001d510b5c86376c850a75224ffafaef32f9"}}