{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:2PPAM4Q7KMCSSSXUDGWPWYNCP4","short_pith_number":"pith:2PPAM4Q7","canonical_record":{"source":{"id":"1411.6470","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2014-11-24T14:45:34Z","cross_cats_sorted":["q-bio.NC"],"title_canon_sha256":"ceb6cac452d65541be2f86837d750a575022e76ef7b6c5d69d69d4b1d569ddb7","abstract_canon_sha256":"71486d2647f8370a9423f1e03bc63a8ca2b84d32b9cb08b9f484fb3c5cd08b8b"},"schema_version":"1.0"},"canonical_sha256":"d3de06721f5305294af419acfb61a27f279c6012bf7ea35a91413d7709746692","source":{"kind":"arxiv","id":"1411.6470","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6470","created_at":"2026-05-18T02:32:54Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6470v1","created_at":"2026-05-18T02:32:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6470","created_at":"2026-05-18T02:32:54Z"},{"alias_kind":"pith_short_12","alias_value":"2PPAM4Q7KMCS","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2PPAM4Q7KMCSSSXU","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2PPAM4Q7","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:2PPAM4Q7KMCSSSXUDGWPWYNCP4","target":"record","payload":{"canonical_record":{"source":{"id":"1411.6470","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2014-11-24T14:45:34Z","cross_cats_sorted":["q-bio.NC"],"title_canon_sha256":"ceb6cac452d65541be2f86837d750a575022e76ef7b6c5d69d69d4b1d569ddb7","abstract_canon_sha256":"71486d2647f8370a9423f1e03bc63a8ca2b84d32b9cb08b9f484fb3c5cd08b8b"},"schema_version":"1.0"},"canonical_sha256":"d3de06721f5305294af419acfb61a27f279c6012bf7ea35a91413d7709746692","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:32:54.889264Z","signature_b64":"oohGGL6GS0Ekfn8UpDtzqh7G4ptuQmxx0c71msL4v0DRSx+G+DEN+LyUd7/kD7u1mTGpo0A28hJ2CIVrQ3a9Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3de06721f5305294af419acfb61a27f279c6012bf7ea35a91413d7709746692","last_reissued_at":"2026-05-18T02:32:54.888757Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:32:54.888757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.6470","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":"2026-05-18T02:32:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mV16viIi7wYBZmmUHEcYR7iWekan6duSMVxHXCAIg44eEimthoNNhPHemt2YvRQ0jr+TkcDb4od8sleQA6emDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:50:47.731981Z"},"content_sha256":"66d30a4256ffe1498057365be9e9065d53d6a331bc4e415360f9de205de3a864","schema_version":"1.0","event_id":"sha256:66d30a4256ffe1498057365be9e9065d53d6a331bc4e415360f9de205de3a864"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:2PPAM4Q7KMCSSSXUDGWPWYNCP4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comparing different muscle activation dynamics using sensitivity analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.NC"],"primary_cat":"math.DS","authors_text":"Michael Guenther, Robert Rockenfeller, Syn Schmitt, Thomas Goetz","submitted_at":"2014-11-24T14:45:34Z","abstract_excerpt":"In this paper, we mathematically compared two models of mammalian striated muscle activation dynamics proposed by Hatze and Zajac. Both models are representative of a broad variety of biomechanical models formulated as ordinary differential equations (ODEs). The models incorporate some parameters that directly represent known physiological properties. Other parameters have been introduced to reproduce empirical observations. We used sensitivity analysis as a mathematical tool for investigating the influence of model parameters on the solution of the ODEs. That is, we adopted a former approach "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6470","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":"2026-05-18T02:32:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3Ty0BTJKeDk8cFQRpuUivawm11cJF8HoNAFO2nQJRBiUy/2RRCOEyzEctzpYbEibusbSbg0PywvfoqncB+E4AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:50:47.732679Z"},"content_sha256":"f685f0c372d3fc7cc5bfbb7ea72464bcfd294f5fcb73a0bd84f44866fcfd30b9","schema_version":"1.0","event_id":"sha256:f685f0c372d3fc7cc5bfbb7ea72464bcfd294f5fcb73a0bd84f44866fcfd30b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4/bundle.json","state_url":"https://pith.science/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4/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":"2026-05-27T13:50:47Z","links":{"resolver":"https://pith.science/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4","bundle":"https://pith.science/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4/bundle.json","state":"https://pith.science/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2PPAM4Q7KMCSSSXUDGWPWYNCP4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2PPAM4Q7KMCSSSXUDGWPWYNCP4","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":"71486d2647f8370a9423f1e03bc63a8ca2b84d32b9cb08b9f484fb3c5cd08b8b","cross_cats_sorted":["q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2014-11-24T14:45:34Z","title_canon_sha256":"ceb6cac452d65541be2f86837d750a575022e76ef7b6c5d69d69d4b1d569ddb7"},"schema_version":"1.0","source":{"id":"1411.6470","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6470","created_at":"2026-05-18T02:32:54Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6470v1","created_at":"2026-05-18T02:32:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6470","created_at":"2026-05-18T02:32:54Z"},{"alias_kind":"pith_short_12","alias_value":"2PPAM4Q7KMCS","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2PPAM4Q7KMCSSSXU","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2PPAM4Q7","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:f685f0c372d3fc7cc5bfbb7ea72464bcfd294f5fcb73a0bd84f44866fcfd30b9","target":"graph","created_at":"2026-05-18T02:32:54Z","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 mathematically compared two models of mammalian striated muscle activation dynamics proposed by Hatze and Zajac. Both models are representative of a broad variety of biomechanical models formulated as ordinary differential equations (ODEs). The models incorporate some parameters that directly represent known physiological properties. Other parameters have been introduced to reproduce empirical observations. We used sensitivity analysis as a mathematical tool for investigating the influence of model parameters on the solution of the ODEs. That is, we adopted a former approach ","authors_text":"Michael Guenther, Robert Rockenfeller, Syn Schmitt, Thomas Goetz","cross_cats":["q-bio.NC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2014-11-24T14:45:34Z","title":"Comparing different muscle activation dynamics using sensitivity analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6470","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":"sha256:66d30a4256ffe1498057365be9e9065d53d6a331bc4e415360f9de205de3a864","target":"record","created_at":"2026-05-18T02:32:54Z","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":"71486d2647f8370a9423f1e03bc63a8ca2b84d32b9cb08b9f484fb3c5cd08b8b","cross_cats_sorted":["q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2014-11-24T14:45:34Z","title_canon_sha256":"ceb6cac452d65541be2f86837d750a575022e76ef7b6c5d69d69d4b1d569ddb7"},"schema_version":"1.0","source":{"id":"1411.6470","kind":"arxiv","version":1}},"canonical_sha256":"d3de06721f5305294af419acfb61a27f279c6012bf7ea35a91413d7709746692","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3de06721f5305294af419acfb61a27f279c6012bf7ea35a91413d7709746692","first_computed_at":"2026-05-18T02:32:54.888757Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:32:54.888757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oohGGL6GS0Ekfn8UpDtzqh7G4ptuQmxx0c71msL4v0DRSx+G+DEN+LyUd7/kD7u1mTGpo0A28hJ2CIVrQ3a9Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:32:54.889264Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.6470","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66d30a4256ffe1498057365be9e9065d53d6a331bc4e415360f9de205de3a864","sha256:f685f0c372d3fc7cc5bfbb7ea72464bcfd294f5fcb73a0bd84f44866fcfd30b9"],"state_sha256":"4d60303391db3664b698597936e90bc025b7a78f9f0967ab66d92719352364e2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZdvxWNnsvK5j7e2NA+E44gii2Grdv4yPyHdacx5ZqgYyp3RkMNOeE3DxcvIAfqtixsDXE01uygVnhDTlzGPoAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:50:47.736233Z","bundle_sha256":"af489b0e47a8b405f15b9dcaf6abeb8be29eaafaa2b2b59608ceca7af6e212bf"}}