{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:OB7JIO7PGPMZWPV6KZT2OVSA24","short_pith_number":"pith:OB7JIO7P","canonical_record":{"source":{"id":"2608.08096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2026-08-08T12:24:38Z","cross_cats_sorted":[],"title_canon_sha256":"7e4473f368029afea1a79236d82f3d2ab6eeb5bab51cf53dabc536cd84d3f0b4","abstract_canon_sha256":"3efd2e991603992700542e439fb3074ba760567f5762ccb0282921f13ddc81f2"},"schema_version":"1.0"},"canonical_sha256":"707e943bef33d99b3ebe5667a75640d70b85a329053374bc1b4986fae6c4dfdd","source":{"kind":"arxiv","id":"2608.08096","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.08096","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2608.08096v1","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.08096","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"OB7JIO7PGPMZ","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"OB7JIO7PGPMZWPV6","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"OB7JIO7P","created_at":"2026-08-11T01:21:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:OB7JIO7PGPMZWPV6KZT2OVSA24","target":"record","payload":{"canonical_record":{"source":{"id":"2608.08096","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2026-08-08T12:24:38Z","cross_cats_sorted":[],"title_canon_sha256":"7e4473f368029afea1a79236d82f3d2ab6eeb5bab51cf53dabc536cd84d3f0b4","abstract_canon_sha256":"3efd2e991603992700542e439fb3074ba760567f5762ccb0282921f13ddc81f2"},"schema_version":"1.0"},"canonical_sha256":"707e943bef33d99b3ebe5667a75640d70b85a329053374bc1b4986fae6c4dfdd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-11T01:21:40.982732Z","signature_b64":"uX+xdNBxoLoZLZzVxK+B/AurwD7UioccFa6kPukam1brXVBDb/ENgPpIx57yshHa+WYTXe/Dtfm57xlsXu/9DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"707e943bef33d99b3ebe5667a75640d70b85a329053374bc1b4986fae6c4dfdd","last_reissued_at":"2026-08-11T01:21:40.979944Z","signature_status":"signed_v1","first_computed_at":"2026-08-11T01:21:40.979944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.08096","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":"2026-08-11T01:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zdBb8p4G6iYiEhXhpVj/VfR5hfCB714AJa4bkMAvY9bNxJCd0Qv1bBbuIHFYuSiyUc+2B4/HbphuSwHqfYddBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T13:22:04.599743Z"},"content_sha256":"b892bdf56fa0d9aa56d0da61ae1f348a146abdcf01554a09781606ab8910747e","schema_version":"1.0","event_id":"sha256:b892bdf56fa0d9aa56d0da61ae1f348a146abdcf01554a09781606ab8910747e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:OB7JIO7PGPMZWPV6KZT2OVSA24","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A minimal physical model of cochlear mechanics: Insights into active nonlinear feedback","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.bio-ph","authors_text":"Toby Joseph, Vidyunmathi N. A.","submitted_at":"2026-08-08T12:24:38Z","abstract_excerpt":"The remarkable sensitivity, compressive nonlinearity, and frequency selectivity of the mammalian cochlea arise from an active process that amplifies the passive mechanical response of the basilar membrane. Outer hair cells are widely regarded as the primary effectors of this active process in the basal regions of the cochlea. This active contribution progressively decreases with increasing stimulus level. Motivated by these observations, a minimal cochlear model is investigated in which each location is represented by a forced damped oscillator with an exponential displacement-dependent active"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.08096","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2608.08096/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-08-11T01:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sya4O+fT0aDNzONRNeubwV7CLM20V484uFtrsLBYtkZJOUaw/Ddbc0z1vFXsrgVIN8CGCSGsOgDUwA6/TCnCBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T13:22:04.600248Z"},"content_sha256":"7cd0e2c425c2742a5ae6be5f5be2a34504c3d07a74099ad60f7dc0e76370ca48","schema_version":"1.0","event_id":"sha256:7cd0e2c425c2742a5ae6be5f5be2a34504c3d07a74099ad60f7dc0e76370ca48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OB7JIO7PGPMZWPV6KZT2OVSA24/bundle.json","state_url":"https://pith.science/pith/OB7JIO7PGPMZWPV6KZT2OVSA24/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OB7JIO7PGPMZWPV6KZT2OVSA24/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":"2026-08-22T13:22:04Z","links":{"resolver":"https://pith.science/pith/OB7JIO7PGPMZWPV6KZT2OVSA24","bundle":"https://pith.science/pith/OB7JIO7PGPMZWPV6KZT2OVSA24/bundle.json","state":"https://pith.science/pith/OB7JIO7PGPMZWPV6KZT2OVSA24/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OB7JIO7PGPMZWPV6KZT2OVSA24/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:OB7JIO7PGPMZWPV6KZT2OVSA24","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":"3efd2e991603992700542e439fb3074ba760567f5762ccb0282921f13ddc81f2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2026-08-08T12:24:38Z","title_canon_sha256":"7e4473f368029afea1a79236d82f3d2ab6eeb5bab51cf53dabc536cd84d3f0b4"},"schema_version":"1.0","source":{"id":"2608.08096","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.08096","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2608.08096v1","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.08096","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"OB7JIO7PGPMZ","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"OB7JIO7PGPMZWPV6","created_at":"2026-08-11T01:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"OB7JIO7P","created_at":"2026-08-11T01:21:40Z"}],"graph_snapshots":[{"event_id":"sha256:7cd0e2c425c2742a5ae6be5f5be2a34504c3d07a74099ad60f7dc0e76370ca48","target":"graph","created_at":"2026-08-11T01:21:40Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2608.08096/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The remarkable sensitivity, compressive nonlinearity, and frequency selectivity of the mammalian cochlea arise from an active process that amplifies the passive mechanical response of the basilar membrane. Outer hair cells are widely regarded as the primary effectors of this active process in the basal regions of the cochlea. This active contribution progressively decreases with increasing stimulus level. Motivated by these observations, a minimal cochlear model is investigated in which each location is represented by a forced damped oscillator with an exponential displacement-dependent active","authors_text":"Toby Joseph, Vidyunmathi N. A.","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2026-08-08T12:24:38Z","title":"A minimal physical model of cochlear mechanics: Insights into active nonlinear feedback"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.08096","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:b892bdf56fa0d9aa56d0da61ae1f348a146abdcf01554a09781606ab8910747e","target":"record","created_at":"2026-08-11T01:21:40Z","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":"3efd2e991603992700542e439fb3074ba760567f5762ccb0282921f13ddc81f2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2026-08-08T12:24:38Z","title_canon_sha256":"7e4473f368029afea1a79236d82f3d2ab6eeb5bab51cf53dabc536cd84d3f0b4"},"schema_version":"1.0","source":{"id":"2608.08096","kind":"arxiv","version":1}},"canonical_sha256":"707e943bef33d99b3ebe5667a75640d70b85a329053374bc1b4986fae6c4dfdd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"707e943bef33d99b3ebe5667a75640d70b85a329053374bc1b4986fae6c4dfdd","first_computed_at":"2026-08-11T01:21:40.979944Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-11T01:21:40.979944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uX+xdNBxoLoZLZzVxK+B/AurwD7UioccFa6kPukam1brXVBDb/ENgPpIx57yshHa+WYTXe/Dtfm57xlsXu/9DA==","signature_status":"signed_v1","signed_at":"2026-08-11T01:21:40.982732Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.08096","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b892bdf56fa0d9aa56d0da61ae1f348a146abdcf01554a09781606ab8910747e","sha256:7cd0e2c425c2742a5ae6be5f5be2a34504c3d07a74099ad60f7dc0e76370ca48"],"state_sha256":"5c8fedbf144ce48cb4f0e9eeb07419e2c5fd54b604b86289af73f1e5ab7eeae0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X+cFleOEmBckG2UhrY7T6oj9UiQeGyjhBQdHOgfZnLlgiKzQnhnUgpKaIHSTu6HTzeDwJFO+HW8qLivseYy+CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T13:22:04.605677Z","bundle_sha256":"318ef2ad75aa3ecd2e23304718d267122d70db02945ea764ddec1891b253bd88"}}