{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:EH7FQYVHI626BSESAR2HDFTCUF","short_pith_number":"pith:EH7FQYVH","canonical_record":{"source":{"id":"2009.00504","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2020-09-01T15:07:53Z","cross_cats_sorted":[],"title_canon_sha256":"a6e1389c9125bc9cbcb8c067f1af081ddda92f8259c2ae2deb77ba4bf9ee9df5","abstract_canon_sha256":"63a593566ed08b8de86b8d6cd04de2c2cb5c7ccca014d21fb591daa69883a4ab"},"schema_version":"1.0"},"canonical_sha256":"21fe5862a747b5e0c8920474719662a152dd42115aea692879fa749237dfb820","source":{"kind":"arxiv","id":"2009.00504","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.00504","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"arxiv_version","alias_value":"2009.00504v1","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.00504","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"pith_short_12","alias_value":"EH7FQYVHI626","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"pith_short_16","alias_value":"EH7FQYVHI626BSES","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"pith_short_8","alias_value":"EH7FQYVH","created_at":"2026-07-05T02:37:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:EH7FQYVHI626BSESAR2HDFTCUF","target":"record","payload":{"canonical_record":{"source":{"id":"2009.00504","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2020-09-01T15:07:53Z","cross_cats_sorted":[],"title_canon_sha256":"a6e1389c9125bc9cbcb8c067f1af081ddda92f8259c2ae2deb77ba4bf9ee9df5","abstract_canon_sha256":"63a593566ed08b8de86b8d6cd04de2c2cb5c7ccca014d21fb591daa69883a4ab"},"schema_version":"1.0"},"canonical_sha256":"21fe5862a747b5e0c8920474719662a152dd42115aea692879fa749237dfb820","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:37:05.302441Z","signature_b64":"lAY3NzNU5uQSAfI7ggwR5E6/LuwYIdUbUfB6pnyL2mC9ho5+2rT6GBjrxmOQSeeIu8GIgG7STcoOZKrjBf/8DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21fe5862a747b5e0c8920474719662a152dd42115aea692879fa749237dfb820","last_reissued_at":"2026-07-05T02:37:05.301812Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:37:05.301812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.00504","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":"2026-07-05T02:37:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"epYE1lOzOeWFQee83auT/lgi12fvidqKow3mxp0xNiwbDViy2gQWWBZ6WsGODxBCajGG/7ui0tOvRqOjSI0bAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T20:12:34.434393Z"},"content_sha256":"bd70cb5466ff3199d3f5648726d42881d17918d44364cfe6cc78931ebef72cee","schema_version":"1.0","event_id":"sha256:bd70cb5466ff3199d3f5648726d42881d17918d44364cfe6cc78931ebef72cee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:EH7FQYVHI626BSESAR2HDFTCUF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhanced persistence and collective migration in cooperatively aligning cell clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.bio-ph","authors_text":"Cornelis Storm, Liesbeth M.C. Janssen, Vincent E. Debets","submitted_at":"2020-09-01T15:07:53Z","abstract_excerpt":"Most cells possess the capacity to locomote. Alone or collectively, this allows them to adapt, to rearrange, and to explore their surroundings. The biophysical characterization of such motile processes, in health and disease, has so far focused mostly on two limiting cases: single-cell motility on the one hand, and the dynamics of confluent tissues such as the epithelium on the other. The in-between regime of clusters, composed of relatively few cells, moving as a coherent unit has received less attention. Such small clusters are, however, deeply relevant in development but also in cancer meta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.00504","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2009.00504/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:37:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4cfKIaZlF/Ts6n6Pui0GGLnZ+WSiC0Un6JU+Hw+BLsTxxXtdU4StWqx0gv+3H6Zgalo4cVa17a8xdwzm897KBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T20:12:34.434765Z"},"content_sha256":"3f051713c81fe6a97ce53ee790f89ee5b05ba7f80b246306aee8ecd09c5e090d","schema_version":"1.0","event_id":"sha256:3f051713c81fe6a97ce53ee790f89ee5b05ba7f80b246306aee8ecd09c5e090d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EH7FQYVHI626BSESAR2HDFTCUF/bundle.json","state_url":"https://pith.science/pith/EH7FQYVHI626BSESAR2HDFTCUF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EH7FQYVHI626BSESAR2HDFTCUF/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":"2026-07-17T20:12:34Z","links":{"resolver":"https://pith.science/pith/EH7FQYVHI626BSESAR2HDFTCUF","bundle":"https://pith.science/pith/EH7FQYVHI626BSESAR2HDFTCUF/bundle.json","state":"https://pith.science/pith/EH7FQYVHI626BSESAR2HDFTCUF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EH7FQYVHI626BSESAR2HDFTCUF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:EH7FQYVHI626BSESAR2HDFTCUF","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":"63a593566ed08b8de86b8d6cd04de2c2cb5c7ccca014d21fb591daa69883a4ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2020-09-01T15:07:53Z","title_canon_sha256":"a6e1389c9125bc9cbcb8c067f1af081ddda92f8259c2ae2deb77ba4bf9ee9df5"},"schema_version":"1.0","source":{"id":"2009.00504","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.00504","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"arxiv_version","alias_value":"2009.00504v1","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.00504","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"pith_short_12","alias_value":"EH7FQYVHI626","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"pith_short_16","alias_value":"EH7FQYVHI626BSES","created_at":"2026-07-05T02:37:05Z"},{"alias_kind":"pith_short_8","alias_value":"EH7FQYVH","created_at":"2026-07-05T02:37:05Z"}],"graph_snapshots":[{"event_id":"sha256:3f051713c81fe6a97ce53ee790f89ee5b05ba7f80b246306aee8ecd09c5e090d","target":"graph","created_at":"2026-07-05T02:37:05Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2009.00504/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Most cells possess the capacity to locomote. Alone or collectively, this allows them to adapt, to rearrange, and to explore their surroundings. The biophysical characterization of such motile processes, in health and disease, has so far focused mostly on two limiting cases: single-cell motility on the one hand, and the dynamics of confluent tissues such as the epithelium on the other. The in-between regime of clusters, composed of relatively few cells, moving as a coherent unit has received less attention. Such small clusters are, however, deeply relevant in development but also in cancer meta","authors_text":"Cornelis Storm, Liesbeth M.C. Janssen, Vincent E. Debets","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2020-09-01T15:07:53Z","title":"Enhanced persistence and collective migration in cooperatively aligning cell clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.00504","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:bd70cb5466ff3199d3f5648726d42881d17918d44364cfe6cc78931ebef72cee","target":"record","created_at":"2026-07-05T02:37:05Z","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":"63a593566ed08b8de86b8d6cd04de2c2cb5c7ccca014d21fb591daa69883a4ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2020-09-01T15:07:53Z","title_canon_sha256":"a6e1389c9125bc9cbcb8c067f1af081ddda92f8259c2ae2deb77ba4bf9ee9df5"},"schema_version":"1.0","source":{"id":"2009.00504","kind":"arxiv","version":1}},"canonical_sha256":"21fe5862a747b5e0c8920474719662a152dd42115aea692879fa749237dfb820","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"21fe5862a747b5e0c8920474719662a152dd42115aea692879fa749237dfb820","first_computed_at":"2026-07-05T02:37:05.301812Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:37:05.301812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lAY3NzNU5uQSAfI7ggwR5E6/LuwYIdUbUfB6pnyL2mC9ho5+2rT6GBjrxmOQSeeIu8GIgG7STcoOZKrjBf/8DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:37:05.302441Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.00504","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd70cb5466ff3199d3f5648726d42881d17918d44364cfe6cc78931ebef72cee","sha256:3f051713c81fe6a97ce53ee790f89ee5b05ba7f80b246306aee8ecd09c5e090d"],"state_sha256":"55548f42ce20508a3a9d4f307330a23c1687ffdcd4c9f338be4b7782911c1390"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GSg0F5RS4Z2XrI9rPIV4o1mQOGKwQe6Ms8a0kNHAArK+I3Rk9ePyxpe3mexIASB9c0D/STF/1C7aWECaUaHfAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T20:12:34.437148Z","bundle_sha256":"fc1e7348b12d8aaf7aed1992f0efc6ff7c94d9f6fc79193cf3ef63bd598034e4"}}