{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:QFTSZKGWTI6KXFCUGD2SZDDCYD","short_pith_number":"pith:QFTSZKGW","canonical_record":{"source":{"id":"1003.3335","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.BM","submitted_at":"2010-03-17T09:49:10Z","cross_cats_sorted":[],"title_canon_sha256":"56d16bd808ff0af61a9eefd887602b2bf9afca85e90c642890bccbb36a917bed","abstract_canon_sha256":"cd47e4acac8b188ad46748b851867f4d4a494f274c800141c125f58557fd9ddf"},"schema_version":"1.0"},"canonical_sha256":"81672ca8d69a3cab945430f52c8c62c0d8548e22163104760858bac8c715d404","source":{"kind":"arxiv","id":"1003.3335","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.3335","created_at":"2026-05-18T02:08:26Z"},{"alias_kind":"arxiv_version","alias_value":"1003.3335v1","created_at":"2026-05-18T02:08:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.3335","created_at":"2026-05-18T02:08:26Z"},{"alias_kind":"pith_short_12","alias_value":"QFTSZKGWTI6K","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QFTSZKGWTI6KXFCU","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QFTSZKGW","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:QFTSZKGWTI6KXFCUGD2SZDDCYD","target":"record","payload":{"canonical_record":{"source":{"id":"1003.3335","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.BM","submitted_at":"2010-03-17T09:49:10Z","cross_cats_sorted":[],"title_canon_sha256":"56d16bd808ff0af61a9eefd887602b2bf9afca85e90c642890bccbb36a917bed","abstract_canon_sha256":"cd47e4acac8b188ad46748b851867f4d4a494f274c800141c125f58557fd9ddf"},"schema_version":"1.0"},"canonical_sha256":"81672ca8d69a3cab945430f52c8c62c0d8548e22163104760858bac8c715d404","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:26.508270Z","signature_b64":"hd/T5i4r06uot+m9kVUzWPG9BSFU6xgdMqTjKYNNtGS6Wcw9U11w8ebAEZ4Al8Gf0eKHCFBD25kjCATdnmsvBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81672ca8d69a3cab945430f52c8c62c0d8548e22163104760858bac8c715d404","last_reissued_at":"2026-05-18T02:08:26.507269Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:26.507269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.3335","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":"2026-05-18T02:08:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aAxr00OxaoSaCAcJdGwzmfIHbaNPWzFb5M2o11j/pX4BicFyHiNjlIvW70DpzwA8O3DWJYR6OO/0XjyGHBU1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:19:58.679173Z"},"content_sha256":"898393c70f68c9cd120a8ab892fcc017aca62f4ec7ada7f937849ac9db8ba6a1","schema_version":"1.0","event_id":"sha256:898393c70f68c9cd120a8ab892fcc017aca62f4ec7ada7f937849ac9db8ba6a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:QFTSZKGWTI6KXFCUGD2SZDDCYD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanoindentation of virus capsids in a molecular model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.BM","authors_text":"Marek Cieplak, Mark O. Robbins","submitted_at":"2010-03-17T09:49:10Z","abstract_excerpt":"A molecular-level model is used to study the mechanical response of empty cowpea chlorotic mottle virus (CCMV) and cowpea mosaic virus (CPMV) capsids. The model is based on the native structure of the proteins that consitute the capsids and is described in terms of the C-alpha atoms. Nanoindentation by a large tip is modeled as compression between parallel plates. Plots of the compressive force versus plate separation for CCMV are qualitatively consistent with continuum models and experiments, showing an elastic region followed by an irreversible drop in force. The mechanical response of CPMV "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.3335","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":"2026-05-18T02:08:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/RzNc7+etXVTzXciwlmQOcA6THKuxplzvaf5AhXJArfr4lZXslVqjhm3lqn0mA1JVrbXSdQAT+jGzmf8CpviAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:19:58.679862Z"},"content_sha256":"77bd193eb9860d40d0d227b2c6813c370ccb4f86607a0f147ecdc1c37581ae0d","schema_version":"1.0","event_id":"sha256:77bd193eb9860d40d0d227b2c6813c370ccb4f86607a0f147ecdc1c37581ae0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD/bundle.json","state_url":"https://pith.science/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD/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":"2026-05-25T17:19:58Z","links":{"resolver":"https://pith.science/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD","bundle":"https://pith.science/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD/bundle.json","state":"https://pith.science/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QFTSZKGWTI6KXFCUGD2SZDDCYD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:QFTSZKGWTI6KXFCUGD2SZDDCYD","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":"cd47e4acac8b188ad46748b851867f4d4a494f274c800141c125f58557fd9ddf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.BM","submitted_at":"2010-03-17T09:49:10Z","title_canon_sha256":"56d16bd808ff0af61a9eefd887602b2bf9afca85e90c642890bccbb36a917bed"},"schema_version":"1.0","source":{"id":"1003.3335","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.3335","created_at":"2026-05-18T02:08:26Z"},{"alias_kind":"arxiv_version","alias_value":"1003.3335v1","created_at":"2026-05-18T02:08:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.3335","created_at":"2026-05-18T02:08:26Z"},{"alias_kind":"pith_short_12","alias_value":"QFTSZKGWTI6K","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QFTSZKGWTI6KXFCU","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QFTSZKGW","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:77bd193eb9860d40d0d227b2c6813c370ccb4f86607a0f147ecdc1c37581ae0d","target":"graph","created_at":"2026-05-18T02:08:26Z","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":"A molecular-level model is used to study the mechanical response of empty cowpea chlorotic mottle virus (CCMV) and cowpea mosaic virus (CPMV) capsids. The model is based on the native structure of the proteins that consitute the capsids and is described in terms of the C-alpha atoms. Nanoindentation by a large tip is modeled as compression between parallel plates. Plots of the compressive force versus plate separation for CCMV are qualitatively consistent with continuum models and experiments, showing an elastic region followed by an irreversible drop in force. The mechanical response of CPMV ","authors_text":"Marek Cieplak, Mark O. Robbins","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.BM","submitted_at":"2010-03-17T09:49:10Z","title":"Nanoindentation of virus capsids in a molecular model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.3335","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":"sha256:898393c70f68c9cd120a8ab892fcc017aca62f4ec7ada7f937849ac9db8ba6a1","target":"record","created_at":"2026-05-18T02:08:26Z","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":"cd47e4acac8b188ad46748b851867f4d4a494f274c800141c125f58557fd9ddf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.BM","submitted_at":"2010-03-17T09:49:10Z","title_canon_sha256":"56d16bd808ff0af61a9eefd887602b2bf9afca85e90c642890bccbb36a917bed"},"schema_version":"1.0","source":{"id":"1003.3335","kind":"arxiv","version":1}},"canonical_sha256":"81672ca8d69a3cab945430f52c8c62c0d8548e22163104760858bac8c715d404","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"81672ca8d69a3cab945430f52c8c62c0d8548e22163104760858bac8c715d404","first_computed_at":"2026-05-18T02:08:26.507269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:26.507269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hd/T5i4r06uot+m9kVUzWPG9BSFU6xgdMqTjKYNNtGS6Wcw9U11w8ebAEZ4Al8Gf0eKHCFBD25kjCATdnmsvBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:26.508270Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.3335","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:898393c70f68c9cd120a8ab892fcc017aca62f4ec7ada7f937849ac9db8ba6a1","sha256:77bd193eb9860d40d0d227b2c6813c370ccb4f86607a0f147ecdc1c37581ae0d"],"state_sha256":"06ef2edec8b8e2ec3b6a35eec860fb2f61abd4d899cd320c0a893a2be75d0fe5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VCXFM28Lb7GmrdEXPYMaia1qSEnZFFHWeZxKuMABXpufklDtdCLRVDgftx3UW+wmh2j/Kk1WrMmh2LFCRQbqBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:19:58.683648Z","bundle_sha256":"f6d88a3d8efdf17c12a328723cc05af3e4056d07f2cc51482e36e5b64b18ccae"}}