{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:OGHOGSCMXW46U6OU47GPR25XJS","short_pith_number":"pith:OGHOGSCM","canonical_record":{"source":{"id":"physics/9901053","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"physics.bio-ph","submitted_at":"1999-01-28T14:48:40Z","cross_cats_sorted":["cond-mat","q-bio.MN"],"title_canon_sha256":"9830940c06a48abca3f801ef5c54792da51df7e977003dc14825a33eb34b8c23","abstract_canon_sha256":"dfd376bdb2eecf716d561016dae90a0fda07b160e0f08917aed195fca52b25c4"},"schema_version":"1.0"},"canonical_sha256":"718ee3484cbdb9ea79d4e7ccf8ebb74ca84af2b08085e7850518c128b84f9fb1","source":{"kind":"arxiv","id":"physics/9901053","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/9901053","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"arxiv_version","alias_value":"physics/9901053v3","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/9901053","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"pith_short_12","alias_value":"OGHOGSCMXW46","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"pith_short_16","alias_value":"OGHOGSCMXW46U6OU","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"pith_short_8","alias_value":"OGHOGSCM","created_at":"2026-07-04T16:15:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:OGHOGSCMXW46U6OU47GPR25XJS","target":"record","payload":{"canonical_record":{"source":{"id":"physics/9901053","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"physics.bio-ph","submitted_at":"1999-01-28T14:48:40Z","cross_cats_sorted":["cond-mat","q-bio.MN"],"title_canon_sha256":"9830940c06a48abca3f801ef5c54792da51df7e977003dc14825a33eb34b8c23","abstract_canon_sha256":"dfd376bdb2eecf716d561016dae90a0fda07b160e0f08917aed195fca52b25c4"},"schema_version":"1.0"},"canonical_sha256":"718ee3484cbdb9ea79d4e7ccf8ebb74ca84af2b08085e7850518c128b84f9fb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:15:32.835486Z","signature_b64":"mvaa70EnK2K8MI1HJ7RhKbBN2z5RXP8SlDC442MtFgLrtoewASrrT7r0yplDIcSXh7GJDHSAPWSgROyGpBMOBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"718ee3484cbdb9ea79d4e7ccf8ebb74ca84af2b08085e7850518c128b84f9fb1","last_reissued_at":"2026-07-04T16:15:32.835026Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:15:32.835026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/9901053","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:15:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xt2ubiVHCBAz8Vva/s4pibztjIle1Fy8V2REAqBcTwntPS8oT5ROEtpB5JSpUU5cPOXaLbG5ASsWVhinwkCaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T19:13:36.185202Z"},"content_sha256":"098ae0ef3b9d6dc792ea2feb2c88dab83331f15d27726f0137e512a7b9ed3a99","schema_version":"1.0","event_id":"sha256:098ae0ef3b9d6dc792ea2feb2c88dab83331f15d27726f0137e512a7b9ed3a99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:OGHOGSCMXW46U6OU47GPR25XJS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive Ising Model and Bacterial Chemotactic Receptor Network","license":"","headline":"","cross_cats":["cond-mat","q-bio.MN"],"primary_cat":"physics.bio-ph","authors_text":"Yu Shi","submitted_at":"1999-01-28T14:48:40Z","abstract_excerpt":"We present a so-called adaptive Ising model (AIM) to provide a unifying explanation for sensitivity and perfect adaptation in bacterial chemotactic signalling, based on coupling among receptor dimers. In an AIM, an external field, representing ligand binding, is randomly applied to a fraction of spins, representing the states of the receptor dimers, and there is a delayed negative feedback from the spin value on the local field. This model is solved in an adiabatic approach. If the feedback is slow and weak enough, as indeed in chemotactic signalling, the system evolves through quasi-equilibri"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/9901053","kind":"arxiv","version":3},"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/physics/9901053/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":"2026-07-04T16:15:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M5MzgUZA3+mYmnhOzK3LSB3eDrfdj8wWB8daxg9NmuDnMBGIc72Qvh630bz1shdEhGh5+ukftIljp4AhvSV/Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T19:13:36.186609Z"},"content_sha256":"a99e251dee07a80bd8fd8c2f1585db8fa7df709838d4c40483bd34d813fdfa2e","schema_version":"1.0","event_id":"sha256:a99e251dee07a80bd8fd8c2f1585db8fa7df709838d4c40483bd34d813fdfa2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OGHOGSCMXW46U6OU47GPR25XJS/bundle.json","state_url":"https://pith.science/pith/OGHOGSCMXW46U6OU47GPR25XJS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OGHOGSCMXW46U6OU47GPR25XJS/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":"2026-08-04T19:13:36Z","links":{"resolver":"https://pith.science/pith/OGHOGSCMXW46U6OU47GPR25XJS","bundle":"https://pith.science/pith/OGHOGSCMXW46U6OU47GPR25XJS/bundle.json","state":"https://pith.science/pith/OGHOGSCMXW46U6OU47GPR25XJS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OGHOGSCMXW46U6OU47GPR25XJS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:OGHOGSCMXW46U6OU47GPR25XJS","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":"dfd376bdb2eecf716d561016dae90a0fda07b160e0f08917aed195fca52b25c4","cross_cats_sorted":["cond-mat","q-bio.MN"],"license":"","primary_cat":"physics.bio-ph","submitted_at":"1999-01-28T14:48:40Z","title_canon_sha256":"9830940c06a48abca3f801ef5c54792da51df7e977003dc14825a33eb34b8c23"},"schema_version":"1.0","source":{"id":"physics/9901053","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/9901053","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"arxiv_version","alias_value":"physics/9901053v3","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/9901053","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"pith_short_12","alias_value":"OGHOGSCMXW46","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"pith_short_16","alias_value":"OGHOGSCMXW46U6OU","created_at":"2026-07-04T16:15:32Z"},{"alias_kind":"pith_short_8","alias_value":"OGHOGSCM","created_at":"2026-07-04T16:15:32Z"}],"graph_snapshots":[{"event_id":"sha256:a99e251dee07a80bd8fd8c2f1585db8fa7df709838d4c40483bd34d813fdfa2e","target":"graph","created_at":"2026-07-04T16:15:32Z","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/physics/9901053/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a so-called adaptive Ising model (AIM) to provide a unifying explanation for sensitivity and perfect adaptation in bacterial chemotactic signalling, based on coupling among receptor dimers. In an AIM, an external field, representing ligand binding, is randomly applied to a fraction of spins, representing the states of the receptor dimers, and there is a delayed negative feedback from the spin value on the local field. This model is solved in an adiabatic approach. If the feedback is slow and weak enough, as indeed in chemotactic signalling, the system evolves through quasi-equilibri","authors_text":"Yu Shi","cross_cats":["cond-mat","q-bio.MN"],"headline":"","license":"","primary_cat":"physics.bio-ph","submitted_at":"1999-01-28T14:48:40Z","title":"Adaptive Ising Model and Bacterial Chemotactic Receptor Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/9901053","kind":"arxiv","version":3},"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":"sha256:098ae0ef3b9d6dc792ea2feb2c88dab83331f15d27726f0137e512a7b9ed3a99","target":"record","created_at":"2026-07-04T16:15:32Z","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":"dfd376bdb2eecf716d561016dae90a0fda07b160e0f08917aed195fca52b25c4","cross_cats_sorted":["cond-mat","q-bio.MN"],"license":"","primary_cat":"physics.bio-ph","submitted_at":"1999-01-28T14:48:40Z","title_canon_sha256":"9830940c06a48abca3f801ef5c54792da51df7e977003dc14825a33eb34b8c23"},"schema_version":"1.0","source":{"id":"physics/9901053","kind":"arxiv","version":3}},"canonical_sha256":"718ee3484cbdb9ea79d4e7ccf8ebb74ca84af2b08085e7850518c128b84f9fb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"718ee3484cbdb9ea79d4e7ccf8ebb74ca84af2b08085e7850518c128b84f9fb1","first_computed_at":"2026-07-04T16:15:32.835026Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:15:32.835026Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mvaa70EnK2K8MI1HJ7RhKbBN2z5RXP8SlDC442MtFgLrtoewASrrT7r0yplDIcSXh7GJDHSAPWSgROyGpBMOBg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:15:32.835486Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/9901053","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:098ae0ef3b9d6dc792ea2feb2c88dab83331f15d27726f0137e512a7b9ed3a99","sha256:a99e251dee07a80bd8fd8c2f1585db8fa7df709838d4c40483bd34d813fdfa2e"],"state_sha256":"000bc92af312eac228c543287f1216836c7f24d47a8bcd21a061afcebc68d53c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RYpWqCjMWd53WJf3oSupx/pyhxsvayYbiF1N2IfggU/JfuCSAYSuWgv5HhkTYnY/FXXwiWmkzY8bhOabBCAHAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T19:13:36.204632Z","bundle_sha256":"39fb4f1cd8b2bd55e69774139f82b57b7b3efc84468863c0e9e4d2147fdf73d8"}}