{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:YEAK467DF3W3ODJYODVTMT3RU7","short_pith_number":"pith:YEAK467D","canonical_record":{"source":{"id":"1612.06901","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2016-12-20T22:13:02Z","cross_cats_sorted":["cond-mat.soft","q-bio.TO"],"title_canon_sha256":"e48d93fcf481c9c6422c0060277d82ce97189f46899e49dd627a617e6ec9814f","abstract_canon_sha256":"2bdba0fb0e62de485994563bf6833e304ee12667b1b2373ba6be8387269347c7"},"schema_version":"1.0"},"canonical_sha256":"c100ae7be32eedb70d3870eb364f71a7f49b89cb28f54eac2989d4b9c9d31472","source":{"kind":"arxiv","id":"1612.06901","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.06901","created_at":"2026-05-18T00:54:15Z"},{"alias_kind":"arxiv_version","alias_value":"1612.06901v1","created_at":"2026-05-18T00:54:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.06901","created_at":"2026-05-18T00:54:15Z"},{"alias_kind":"pith_short_12","alias_value":"YEAK467DF3W3","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YEAK467DF3W3ODJY","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YEAK467D","created_at":"2026-05-18T12:30:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:YEAK467DF3W3ODJYODVTMT3RU7","target":"record","payload":{"canonical_record":{"source":{"id":"1612.06901","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2016-12-20T22:13:02Z","cross_cats_sorted":["cond-mat.soft","q-bio.TO"],"title_canon_sha256":"e48d93fcf481c9c6422c0060277d82ce97189f46899e49dd627a617e6ec9814f","abstract_canon_sha256":"2bdba0fb0e62de485994563bf6833e304ee12667b1b2373ba6be8387269347c7"},"schema_version":"1.0"},"canonical_sha256":"c100ae7be32eedb70d3870eb364f71a7f49b89cb28f54eac2989d4b9c9d31472","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:15.082911Z","signature_b64":"8F0tVGtOWyswbyPHXVj12jktoXFSnf+O8Zm8+gjIeIYODa6L/X1TWLCsq9eJx2KTcsxq0scmEjWZ15NBPz9JCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c100ae7be32eedb70d3870eb364f71a7f49b89cb28f54eac2989d4b9c9d31472","last_reissued_at":"2026-05-18T00:54:15.082482Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:15.082482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.06901","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":"2026-05-18T00:54:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d/1ru1yQYe2OJ5KcXSf0c1wbX2RBLY6Ot9fzyyTF3cnGdg1WO9WqCmZQgV48fL8YSf048PiBJR3ruBKTu8XyBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:53:03.610817Z"},"content_sha256":"66e34b0bf1376413fab347eb1067dd41186188c33947160a8372af847b664052","schema_version":"1.0","event_id":"sha256:66e34b0bf1376413fab347eb1067dd41186188c33947160a8372af847b664052"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:YEAK467DF3W3ODJYODVTMT3RU7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Emergent structures and dynamics of cell colonies by contact inhibition of locomotion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","q-bio.TO"],"primary_cat":"physics.bio-ph","authors_text":"Bart Smeets, Herman Ramon, Ignacio Pagonabarraga, Jiri Pesek, Ricard Alert, Romaric Vincent","submitted_at":"2016-12-20T22:13:02Z","abstract_excerpt":"Cells in tissues can organize into a broad spectrum of structures according to their function. Drastic changes of organization, such as epithelial-mesenchymal transitions or the formation of spheroidal aggregates, are often associated either to tissue morphogenesis or to cancer progression. Here, we study the organization of cell colonies by means of simulations of self-propelled particles with generic cell-like interactions. The interplay between cell softness, cell-cell adhesion, and contact inhibition of locomotion (CIL) yields structures and collective dynamics observed in several existing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.06901","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":"2026-05-18T00:54:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JwbneORlCfPP0hThdLy2Y2alHB8RxfREv9v4x0hxIpUSxo1mTylbaEi6gTPE0vex7TlqqHXWw1Ci2PqiXg/QCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:53:03.611520Z"},"content_sha256":"28bfb4f1a47766d3bc9ac976ddaff286812002ee2bc23810a034a0465ff9a6f0","schema_version":"1.0","event_id":"sha256:28bfb4f1a47766d3bc9ac976ddaff286812002ee2bc23810a034a0465ff9a6f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YEAK467DF3W3ODJYODVTMT3RU7/bundle.json","state_url":"https://pith.science/pith/YEAK467DF3W3ODJYODVTMT3RU7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YEAK467DF3W3ODJYODVTMT3RU7/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":"2026-05-31T13:53:03Z","links":{"resolver":"https://pith.science/pith/YEAK467DF3W3ODJYODVTMT3RU7","bundle":"https://pith.science/pith/YEAK467DF3W3ODJYODVTMT3RU7/bundle.json","state":"https://pith.science/pith/YEAK467DF3W3ODJYODVTMT3RU7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YEAK467DF3W3ODJYODVTMT3RU7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:YEAK467DF3W3ODJYODVTMT3RU7","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":"2bdba0fb0e62de485994563bf6833e304ee12667b1b2373ba6be8387269347c7","cross_cats_sorted":["cond-mat.soft","q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2016-12-20T22:13:02Z","title_canon_sha256":"e48d93fcf481c9c6422c0060277d82ce97189f46899e49dd627a617e6ec9814f"},"schema_version":"1.0","source":{"id":"1612.06901","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.06901","created_at":"2026-05-18T00:54:15Z"},{"alias_kind":"arxiv_version","alias_value":"1612.06901v1","created_at":"2026-05-18T00:54:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.06901","created_at":"2026-05-18T00:54:15Z"},{"alias_kind":"pith_short_12","alias_value":"YEAK467DF3W3","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YEAK467DF3W3ODJY","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YEAK467D","created_at":"2026-05-18T12:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:28bfb4f1a47766d3bc9ac976ddaff286812002ee2bc23810a034a0465ff9a6f0","target":"graph","created_at":"2026-05-18T00:54:15Z","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":"Cells in tissues can organize into a broad spectrum of structures according to their function. Drastic changes of organization, such as epithelial-mesenchymal transitions or the formation of spheroidal aggregates, are often associated either to tissue morphogenesis or to cancer progression. Here, we study the organization of cell colonies by means of simulations of self-propelled particles with generic cell-like interactions. The interplay between cell softness, cell-cell adhesion, and contact inhibition of locomotion (CIL) yields structures and collective dynamics observed in several existing","authors_text":"Bart Smeets, Herman Ramon, Ignacio Pagonabarraga, Jiri Pesek, Ricard Alert, Romaric Vincent","cross_cats":["cond-mat.soft","q-bio.TO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2016-12-20T22:13:02Z","title":"Emergent structures and dynamics of cell colonies by contact inhibition of locomotion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.06901","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":"sha256:66e34b0bf1376413fab347eb1067dd41186188c33947160a8372af847b664052","target":"record","created_at":"2026-05-18T00:54:15Z","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":"2bdba0fb0e62de485994563bf6833e304ee12667b1b2373ba6be8387269347c7","cross_cats_sorted":["cond-mat.soft","q-bio.TO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2016-12-20T22:13:02Z","title_canon_sha256":"e48d93fcf481c9c6422c0060277d82ce97189f46899e49dd627a617e6ec9814f"},"schema_version":"1.0","source":{"id":"1612.06901","kind":"arxiv","version":1}},"canonical_sha256":"c100ae7be32eedb70d3870eb364f71a7f49b89cb28f54eac2989d4b9c9d31472","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c100ae7be32eedb70d3870eb364f71a7f49b89cb28f54eac2989d4b9c9d31472","first_computed_at":"2026-05-18T00:54:15.082482Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:15.082482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8F0tVGtOWyswbyPHXVj12jktoXFSnf+O8Zm8+gjIeIYODa6L/X1TWLCsq9eJx2KTcsxq0scmEjWZ15NBPz9JCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:15.082911Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.06901","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66e34b0bf1376413fab347eb1067dd41186188c33947160a8372af847b664052","sha256:28bfb4f1a47766d3bc9ac976ddaff286812002ee2bc23810a034a0465ff9a6f0"],"state_sha256":"3efaccffa68948c574318cee837d51faa31acca0dcb85942d992157e897932fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mJ2gpYuchX7dswrmJArBIok5unpcxxFYLPw13uV3EQqTmSduEl5mt5FNTNqjJjimhPiVu/yAXsD3gOeQTjOeDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T13:53:03.614905Z","bundle_sha256":"e2b4dbbb449facbdb2cf6e08c8c2bea37d69a348ca1560b6adb5989e6a2d293c"}}