{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:DCSK45ORN3SU66SDBDTHRVPRAL","short_pith_number":"pith:DCSK45OR","canonical_record":{"source":{"id":"1411.7586","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-11-27T13:24:02Z","cross_cats_sorted":[],"title_canon_sha256":"5fc8a1fa231072d160bc1b53bce1054f6b6a815ef3611ef44dbdcca319b6bbcf","abstract_canon_sha256":"49f117dd28f095b7e329aacfb7656cd1002761bb379372802acaee3d2e55c298"},"schema_version":"1.0"},"canonical_sha256":"18a4ae75d16ee54f7a4308e678d5f102c48d9223e1f897f7210a241dd2ea785a","source":{"kind":"arxiv","id":"1411.7586","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.7586","created_at":"2026-05-18T02:32:37Z"},{"alias_kind":"arxiv_version","alias_value":"1411.7586v1","created_at":"2026-05-18T02:32:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.7586","created_at":"2026-05-18T02:32:37Z"},{"alias_kind":"pith_short_12","alias_value":"DCSK45ORN3SU","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DCSK45ORN3SU66SD","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DCSK45OR","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:DCSK45ORN3SU66SDBDTHRVPRAL","target":"record","payload":{"canonical_record":{"source":{"id":"1411.7586","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-11-27T13:24:02Z","cross_cats_sorted":[],"title_canon_sha256":"5fc8a1fa231072d160bc1b53bce1054f6b6a815ef3611ef44dbdcca319b6bbcf","abstract_canon_sha256":"49f117dd28f095b7e329aacfb7656cd1002761bb379372802acaee3d2e55c298"},"schema_version":"1.0"},"canonical_sha256":"18a4ae75d16ee54f7a4308e678d5f102c48d9223e1f897f7210a241dd2ea785a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:37.647415Z","signature_b64":"/0VVwI7cZeZfOadl3lKhPyPBxwTjNqdETnk/CTPx2eCpjCW4OEn9tBmSFl/JF5aWQSYfGoYaH6kf1nNbRmBqCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"18a4ae75d16ee54f7a4308e678d5f102c48d9223e1f897f7210a241dd2ea785a","last_reissued_at":"2026-05-18T02:32:37.646954Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:37.646954Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.7586","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":"2026-05-18T02:32:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zfOVyles05R3Df95Fu+7PO0YVYKR2HRaQsx+iloOWXgFaAnKA/hwBSxRNPilpoAk39phyR3Xou7D8eNi+YFHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T21:21:39.991125Z"},"content_sha256":"a13abe7c570cd903d1ef3883977f2daa1fb6c58a2f860753c17a9ddf58715d8a","schema_version":"1.0","event_id":"sha256:a13abe7c570cd903d1ef3883977f2daa1fb6c58a2f860753c17a9ddf58715d8a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:DCSK45ORN3SU66SDBDTHRVPRAL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Damping effect of helix-like pili","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.bio-ph","authors_text":"Johan Zakrisson, Krister Wiklund, Magnus Andersson, Ove Axner","submitted_at":"2014-11-27T13:24:02Z","abstract_excerpt":"Biopolymers are vital structures for many living organisms; for a variety of bacteria, adhesion polymers play a crucial role for the initiation of colonization. Some bacteria express, on their surface, attachment organelles (pili) that comprise subunits formed into stiff helix-like structures that possess unique biomechanical properties. These helix-like structures possess a high degree of flexibility that gives the biopolymers a unique extendibility. This has been considered beneficial for piliated bacteria adhering to host surfaces in the presence of a fluid flow. We show in this work that h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.7586","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":"2026-05-18T02:32:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d/Wymg+1UdOb+HfLikMIFtYlVCTDlt2EbZXdPADQ2Tp/ymcx7OU8AdrKUiCCluu6LlP1mfwSSvntuFJN0WjBDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T21:21:39.991817Z"},"content_sha256":"553167062f2221175ce0e1659a2cc3943306e8bb8e9c5e5d6ef88f987fc5c123","schema_version":"1.0","event_id":"sha256:553167062f2221175ce0e1659a2cc3943306e8bb8e9c5e5d6ef88f987fc5c123"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DCSK45ORN3SU66SDBDTHRVPRAL/bundle.json","state_url":"https://pith.science/pith/DCSK45ORN3SU66SDBDTHRVPRAL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DCSK45ORN3SU66SDBDTHRVPRAL/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":"2026-06-11T21:21:39Z","links":{"resolver":"https://pith.science/pith/DCSK45ORN3SU66SDBDTHRVPRAL","bundle":"https://pith.science/pith/DCSK45ORN3SU66SDBDTHRVPRAL/bundle.json","state":"https://pith.science/pith/DCSK45ORN3SU66SDBDTHRVPRAL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DCSK45ORN3SU66SDBDTHRVPRAL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:DCSK45ORN3SU66SDBDTHRVPRAL","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":"49f117dd28f095b7e329aacfb7656cd1002761bb379372802acaee3d2e55c298","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-11-27T13:24:02Z","title_canon_sha256":"5fc8a1fa231072d160bc1b53bce1054f6b6a815ef3611ef44dbdcca319b6bbcf"},"schema_version":"1.0","source":{"id":"1411.7586","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.7586","created_at":"2026-05-18T02:32:37Z"},{"alias_kind":"arxiv_version","alias_value":"1411.7586v1","created_at":"2026-05-18T02:32:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.7586","created_at":"2026-05-18T02:32:37Z"},{"alias_kind":"pith_short_12","alias_value":"DCSK45ORN3SU","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DCSK45ORN3SU66SD","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DCSK45OR","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:553167062f2221175ce0e1659a2cc3943306e8bb8e9c5e5d6ef88f987fc5c123","target":"graph","created_at":"2026-05-18T02:32:37Z","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":"Biopolymers are vital structures for many living organisms; for a variety of bacteria, adhesion polymers play a crucial role for the initiation of colonization. Some bacteria express, on their surface, attachment organelles (pili) that comprise subunits formed into stiff helix-like structures that possess unique biomechanical properties. These helix-like structures possess a high degree of flexibility that gives the biopolymers a unique extendibility. This has been considered beneficial for piliated bacteria adhering to host surfaces in the presence of a fluid flow. We show in this work that h","authors_text":"Johan Zakrisson, Krister Wiklund, Magnus Andersson, Ove Axner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-11-27T13:24:02Z","title":"Damping effect of helix-like pili"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.7586","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:a13abe7c570cd903d1ef3883977f2daa1fb6c58a2f860753c17a9ddf58715d8a","target":"record","created_at":"2026-05-18T02:32:37Z","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":"49f117dd28f095b7e329aacfb7656cd1002761bb379372802acaee3d2e55c298","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-11-27T13:24:02Z","title_canon_sha256":"5fc8a1fa231072d160bc1b53bce1054f6b6a815ef3611ef44dbdcca319b6bbcf"},"schema_version":"1.0","source":{"id":"1411.7586","kind":"arxiv","version":1}},"canonical_sha256":"18a4ae75d16ee54f7a4308e678d5f102c48d9223e1f897f7210a241dd2ea785a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"18a4ae75d16ee54f7a4308e678d5f102c48d9223e1f897f7210a241dd2ea785a","first_computed_at":"2026-05-18T02:32:37.646954Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:37.646954Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/0VVwI7cZeZfOadl3lKhPyPBxwTjNqdETnk/CTPx2eCpjCW4OEn9tBmSFl/JF5aWQSYfGoYaH6kf1nNbRmBqCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:37.647415Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.7586","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a13abe7c570cd903d1ef3883977f2daa1fb6c58a2f860753c17a9ddf58715d8a","sha256:553167062f2221175ce0e1659a2cc3943306e8bb8e9c5e5d6ef88f987fc5c123"],"state_sha256":"0f60fa0899e70183d921665f4cae04efe511f35ff37a69a20548f49564ac7d60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b9gY8Fs2U/EPzynhT7hsqa5ObXmRzXn8XHat5KOLdYwQq1rSKsXn6zKw41e9H/Grmj2Me1wHL7LVG1CrK7yzBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T21:21:39.995754Z","bundle_sha256":"b5bd5efd5aba903a9c5519b328a8a6eb27a213d6c39b7a42711f88961a0d05a9"}}