{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:T4KGEISOUH7EWGLHXAQRZFCH6I","short_pith_number":"pith:T4KGEISO","canonical_record":{"source":{"id":"1501.07194","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2015-01-28T17:02:09Z","cross_cats_sorted":["q-bio.CB"],"title_canon_sha256":"cfd1ff3492d9d5d7e652538db36f0668e8ccf5202785b91edf85985115bb9e0b","abstract_canon_sha256":"548180864c8c153bc1cc2f145cbc7ae6fcfb96271afc2374df2e92547a51a1f5"},"schema_version":"1.0"},"canonical_sha256":"9f1462224ea1fe4b1967b8211c9447f2093f17483006e31de647a866078fbfce","source":{"kind":"arxiv","id":"1501.07194","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07194","created_at":"2026-05-18T02:28:29Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07194v1","created_at":"2026-05-18T02:28:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07194","created_at":"2026-05-18T02:28:29Z"},{"alias_kind":"pith_short_12","alias_value":"T4KGEISOUH7E","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"T4KGEISOUH7EWGLH","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"T4KGEISO","created_at":"2026-05-18T12:29:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:T4KGEISOUH7EWGLHXAQRZFCH6I","target":"record","payload":{"canonical_record":{"source":{"id":"1501.07194","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2015-01-28T17:02:09Z","cross_cats_sorted":["q-bio.CB"],"title_canon_sha256":"cfd1ff3492d9d5d7e652538db36f0668e8ccf5202785b91edf85985115bb9e0b","abstract_canon_sha256":"548180864c8c153bc1cc2f145cbc7ae6fcfb96271afc2374df2e92547a51a1f5"},"schema_version":"1.0"},"canonical_sha256":"9f1462224ea1fe4b1967b8211c9447f2093f17483006e31de647a866078fbfce","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:29.926795Z","signature_b64":"4bVYxf/vr06mkQm3HinYZBAkftPHS7H1Pj8Kr1FkhRIfBcfsdqaE4bP2nbyabQhfi03YoXL9y1eBAZilEZZPCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f1462224ea1fe4b1967b8211c9447f2093f17483006e31de647a866078fbfce","last_reissued_at":"2026-05-18T02:28:29.926261Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:29.926261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.07194","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":"2026-05-18T02:28:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0S3QIMhzwYxvZx97HxV9EBDQSsMLVHIv8P9KWbAuvBt3bKHFqzjwQ8UCwBYCxahK8XPd3ipUg/6ucQ/+zKROBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T20:29:23.811692Z"},"content_sha256":"f2a8a3c7b6e09d0e51c34279e6da90e72eb6a057471c481740c45dab1edd1fbc","schema_version":"1.0","event_id":"sha256:f2a8a3c7b6e09d0e51c34279e6da90e72eb6a057471c481740c45dab1edd1fbc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:T4KGEISOUH7EWGLHXAQRZFCH6I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maximum velocity of self-propulsion for an active segment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.CB"],"primary_cat":"physics.bio-ph","authors_text":"Lev Truskinovsky, Pierre Recho","submitted_at":"2015-01-28T17:02:09Z","abstract_excerpt":"The motor part of a crawling eukaryotic cell can be represented schematically as an active continuum layer. The main active processes in this layer are protrusion, originating from non-equilibrium polymerization of actin fibers, contraction, induced by myosin molecular motors and attachment due to active bonding of trans-membrane proteins to a substrate. All three active mechanisms are regulated by complex signaling pathways involving chemical and mechanical feedback loops whose microscopic functioning is still poorly understood. In this situation, it is instructive to take a reverse engineeri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07194","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":"2026-05-18T02:28:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6aimjIKj5/5LEGzRL4RWFKVGsrCN0qQWzVJS2vTdaZYWlwxvoQlhLHZBQ7LkKAiEjQkV/2Kd2qwNGWOJVZtNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T20:29:23.812046Z"},"content_sha256":"ca922d686dd07c6d622104cfd94c43a55a8a895c15e686ad47a7a5c1ddc706ea","schema_version":"1.0","event_id":"sha256:ca922d686dd07c6d622104cfd94c43a55a8a895c15e686ad47a7a5c1ddc706ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T4KGEISOUH7EWGLHXAQRZFCH6I/bundle.json","state_url":"https://pith.science/pith/T4KGEISOUH7EWGLHXAQRZFCH6I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T4KGEISOUH7EWGLHXAQRZFCH6I/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":"2026-06-25T20:29:23Z","links":{"resolver":"https://pith.science/pith/T4KGEISOUH7EWGLHXAQRZFCH6I","bundle":"https://pith.science/pith/T4KGEISOUH7EWGLHXAQRZFCH6I/bundle.json","state":"https://pith.science/pith/T4KGEISOUH7EWGLHXAQRZFCH6I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T4KGEISOUH7EWGLHXAQRZFCH6I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:T4KGEISOUH7EWGLHXAQRZFCH6I","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":"548180864c8c153bc1cc2f145cbc7ae6fcfb96271afc2374df2e92547a51a1f5","cross_cats_sorted":["q-bio.CB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2015-01-28T17:02:09Z","title_canon_sha256":"cfd1ff3492d9d5d7e652538db36f0668e8ccf5202785b91edf85985115bb9e0b"},"schema_version":"1.0","source":{"id":"1501.07194","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07194","created_at":"2026-05-18T02:28:29Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07194v1","created_at":"2026-05-18T02:28:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07194","created_at":"2026-05-18T02:28:29Z"},{"alias_kind":"pith_short_12","alias_value":"T4KGEISOUH7E","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"T4KGEISOUH7EWGLH","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"T4KGEISO","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:ca922d686dd07c6d622104cfd94c43a55a8a895c15e686ad47a7a5c1ddc706ea","target":"graph","created_at":"2026-05-18T02:28:29Z","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 motor part of a crawling eukaryotic cell can be represented schematically as an active continuum layer. The main active processes in this layer are protrusion, originating from non-equilibrium polymerization of actin fibers, contraction, induced by myosin molecular motors and attachment due to active bonding of trans-membrane proteins to a substrate. All three active mechanisms are regulated by complex signaling pathways involving chemical and mechanical feedback loops whose microscopic functioning is still poorly understood. In this situation, it is instructive to take a reverse engineeri","authors_text":"Lev Truskinovsky, Pierre Recho","cross_cats":["q-bio.CB"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2015-01-28T17:02:09Z","title":"Maximum velocity of self-propulsion for an active segment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07194","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:f2a8a3c7b6e09d0e51c34279e6da90e72eb6a057471c481740c45dab1edd1fbc","target":"record","created_at":"2026-05-18T02:28:29Z","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":"548180864c8c153bc1cc2f145cbc7ae6fcfb96271afc2374df2e92547a51a1f5","cross_cats_sorted":["q-bio.CB"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2015-01-28T17:02:09Z","title_canon_sha256":"cfd1ff3492d9d5d7e652538db36f0668e8ccf5202785b91edf85985115bb9e0b"},"schema_version":"1.0","source":{"id":"1501.07194","kind":"arxiv","version":1}},"canonical_sha256":"9f1462224ea1fe4b1967b8211c9447f2093f17483006e31de647a866078fbfce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f1462224ea1fe4b1967b8211c9447f2093f17483006e31de647a866078fbfce","first_computed_at":"2026-05-18T02:28:29.926261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:29.926261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4bVYxf/vr06mkQm3HinYZBAkftPHS7H1Pj8Kr1FkhRIfBcfsdqaE4bP2nbyabQhfi03YoXL9y1eBAZilEZZPCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:29.926795Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.07194","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2a8a3c7b6e09d0e51c34279e6da90e72eb6a057471c481740c45dab1edd1fbc","sha256:ca922d686dd07c6d622104cfd94c43a55a8a895c15e686ad47a7a5c1ddc706ea"],"state_sha256":"985cf9a79e64c47a0b5e3037c202501ee42cbda895b9074de7103c47bece6e15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iA1Z+xv6N1iBjezavywk200myRfoJU+3NCeogv5lw+3uTBgZVMWQDsWudqjQ1L3IWQkvCLMLSU7c9YAVnQJwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T20:29:23.814099Z","bundle_sha256":"6540cd10c107d4dc572e8950fda400255f7d2c1437068afb7189453463e98d4f"}}