{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:CLN63XAHFSM6NZKGJX46RVVYW4","short_pith_number":"pith:CLN63XAH","canonical_record":{"source":{"id":"1903.03565","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2019-03-08T17:19:30Z","cross_cats_sorted":["math.DS","physics.bio-ph"],"title_canon_sha256":"3666d2d6489cd1a8a8a7ed16935ad2cce73d60e6016ec98675aa53cac0cc931d","abstract_canon_sha256":"46db81004a8f6aff82db0153d283d8f0a2b1567d21f869928a96c5cd8026d197"},"schema_version":"1.0"},"canonical_sha256":"12dbeddc072c99e6e5464df9e8d6b8b73a8b1fa286f93549e8e3ca2c06fa2c53","source":{"kind":"arxiv","id":"1903.03565","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03565","created_at":"2026-05-17T23:51:45Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03565v1","created_at":"2026-05-17T23:51:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03565","created_at":"2026-05-17T23:51:45Z"},{"alias_kind":"pith_short_12","alias_value":"CLN63XAHFSM6","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"CLN63XAHFSM6NZKG","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"CLN63XAH","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:CLN63XAHFSM6NZKGJX46RVVYW4","target":"record","payload":{"canonical_record":{"source":{"id":"1903.03565","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2019-03-08T17:19:30Z","cross_cats_sorted":["math.DS","physics.bio-ph"],"title_canon_sha256":"3666d2d6489cd1a8a8a7ed16935ad2cce73d60e6016ec98675aa53cac0cc931d","abstract_canon_sha256":"46db81004a8f6aff82db0153d283d8f0a2b1567d21f869928a96c5cd8026d197"},"schema_version":"1.0"},"canonical_sha256":"12dbeddc072c99e6e5464df9e8d6b8b73a8b1fa286f93549e8e3ca2c06fa2c53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:45.153384Z","signature_b64":"p26zvqfd3f7HXAG31KHpBc8HoaR1TZ/Yn5Pc2Ga5al9/UfxWzvRAyzVDoxprvnvfP9Jdlcp48BXvxs2QXcLBCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"12dbeddc072c99e6e5464df9e8d6b8b73a8b1fa286f93549e8e3ca2c06fa2c53","last_reissued_at":"2026-05-17T23:51:45.152905Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:45.152905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.03565","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":"2026-05-17T23:51:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5n2zASkCgt6sSQnlJlVgVqCS9ol22apY5ijOHqPUemet9lFs6OVo5ChJKBonGiin7TWJnhI81LrqOQu/GiNZDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:07:37.565148Z"},"content_sha256":"12355ebf7d16907128aee791e480cf6e208941d8d5e5dbf7907f282279bd02b2","schema_version":"1.0","event_id":"sha256:12355ebf7d16907128aee791e480cf6e208941d8d5e5dbf7907f282279bd02b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:CLN63XAHFSM6NZKGJX46RVVYW4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modeling fungal hypha tip growth via viscous sheet approximation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.DS","physics.bio-ph"],"primary_cat":"q-bio.CB","authors_text":"Georg Prokert, Josephus Hulshof, Thomas de Jong","submitted_at":"2019-03-08T17:19:30Z","abstract_excerpt":"In this paper we present a new model for single-celled, non-branching hypha tip growth. The growth mechanism of hypha cells consists of transport of cell wall building material to the cell wall and subsequent incorporation of this material in the wall as it arrives. To model the transport of cell wall building material to the cell wall we follow Bartnicki-Garcia et al in assuming that the cell wall building material is transported in straight lines by an isotropic point source. To model the dynamics of the cell wall, including its growth by new material, we use the approach of Campas and Mahad"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03565","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":"2026-05-17T23:51:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N16Py/B+50oSeDNr7EGSwDBdVoYu4n4mXeRBlgf+xWZHXPVYr+u3y/JXSMd7yTKOlbMNeWvH7ZanOArRa/6YAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:07:37.565606Z"},"content_sha256":"0cf0e5e5ed67e767b70aa89ae546796f33358aa78daddc4f379ace79b644e354","schema_version":"1.0","event_id":"sha256:0cf0e5e5ed67e767b70aa89ae546796f33358aa78daddc4f379ace79b644e354"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CLN63XAHFSM6NZKGJX46RVVYW4/bundle.json","state_url":"https://pith.science/pith/CLN63XAHFSM6NZKGJX46RVVYW4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CLN63XAHFSM6NZKGJX46RVVYW4/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":"2026-06-10T13:07:37Z","links":{"resolver":"https://pith.science/pith/CLN63XAHFSM6NZKGJX46RVVYW4","bundle":"https://pith.science/pith/CLN63XAHFSM6NZKGJX46RVVYW4/bundle.json","state":"https://pith.science/pith/CLN63XAHFSM6NZKGJX46RVVYW4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CLN63XAHFSM6NZKGJX46RVVYW4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:CLN63XAHFSM6NZKGJX46RVVYW4","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":"46db81004a8f6aff82db0153d283d8f0a2b1567d21f869928a96c5cd8026d197","cross_cats_sorted":["math.DS","physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2019-03-08T17:19:30Z","title_canon_sha256":"3666d2d6489cd1a8a8a7ed16935ad2cce73d60e6016ec98675aa53cac0cc931d"},"schema_version":"1.0","source":{"id":"1903.03565","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.03565","created_at":"2026-05-17T23:51:45Z"},{"alias_kind":"arxiv_version","alias_value":"1903.03565v1","created_at":"2026-05-17T23:51:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.03565","created_at":"2026-05-17T23:51:45Z"},{"alias_kind":"pith_short_12","alias_value":"CLN63XAHFSM6","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"CLN63XAHFSM6NZKG","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"CLN63XAH","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:0cf0e5e5ed67e767b70aa89ae546796f33358aa78daddc4f379ace79b644e354","target":"graph","created_at":"2026-05-17T23:51:45Z","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":"In this paper we present a new model for single-celled, non-branching hypha tip growth. The growth mechanism of hypha cells consists of transport of cell wall building material to the cell wall and subsequent incorporation of this material in the wall as it arrives. To model the transport of cell wall building material to the cell wall we follow Bartnicki-Garcia et al in assuming that the cell wall building material is transported in straight lines by an isotropic point source. To model the dynamics of the cell wall, including its growth by new material, we use the approach of Campas and Mahad","authors_text":"Georg Prokert, Josephus Hulshof, Thomas de Jong","cross_cats":["math.DS","physics.bio-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2019-03-08T17:19:30Z","title":"Modeling fungal hypha tip growth via viscous sheet approximation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.03565","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":"sha256:12355ebf7d16907128aee791e480cf6e208941d8d5e5dbf7907f282279bd02b2","target":"record","created_at":"2026-05-17T23:51:45Z","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":"46db81004a8f6aff82db0153d283d8f0a2b1567d21f869928a96c5cd8026d197","cross_cats_sorted":["math.DS","physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.CB","submitted_at":"2019-03-08T17:19:30Z","title_canon_sha256":"3666d2d6489cd1a8a8a7ed16935ad2cce73d60e6016ec98675aa53cac0cc931d"},"schema_version":"1.0","source":{"id":"1903.03565","kind":"arxiv","version":1}},"canonical_sha256":"12dbeddc072c99e6e5464df9e8d6b8b73a8b1fa286f93549e8e3ca2c06fa2c53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12dbeddc072c99e6e5464df9e8d6b8b73a8b1fa286f93549e8e3ca2c06fa2c53","first_computed_at":"2026-05-17T23:51:45.152905Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:45.152905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p26zvqfd3f7HXAG31KHpBc8HoaR1TZ/Yn5Pc2Ga5al9/UfxWzvRAyzVDoxprvnvfP9Jdlcp48BXvxs2QXcLBCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:45.153384Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.03565","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12355ebf7d16907128aee791e480cf6e208941d8d5e5dbf7907f282279bd02b2","sha256:0cf0e5e5ed67e767b70aa89ae546796f33358aa78daddc4f379ace79b644e354"],"state_sha256":"0d3c03e91053fe308462a6d93d186b39691f2bbc9a2547c71100d3201c7b3de2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zkkylh8XuAIe2SCk0vRPHftVr2y4gGox9e2XdjdaG3gukRjUxro3mMV20wD4AUDqfGxFfA4/aUWVNlev3SM6Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T13:07:37.569158Z","bundle_sha256":"9808ade671f889bd5497d3677036e8590cabb826b914255e76e4d0ad61712b23"}}