{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:HL5SKYYUUAKKF7UCG5ZQUMGYYY","short_pith_number":"pith:HL5SKYYU","canonical_record":{"source":{"id":"2503.23279","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-03-30T01:58:34Z","cross_cats_sorted":["cond-mat.soft","q-bio.CB"],"title_canon_sha256":"1964c35f530c8628d31fdb7b627b4c5a6a5324105290a8877c2fb0b540e2985a","abstract_canon_sha256":"38a819bb380535945ce0ea64fe893f732368949b13c3c5247e1e4634e006defc"},"schema_version":"1.0"},"canonical_sha256":"3afb256314a014a2fe8237730a30d8c6084ff02d5952ee71cbfab3767aa8aa9a","source":{"kind":"arxiv","id":"2503.23279","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.23279","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"arxiv_version","alias_value":"2503.23279v1","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.23279","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"pith_short_12","alias_value":"HL5SKYYUUAKK","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"pith_short_16","alias_value":"HL5SKYYUUAKKF7UC","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"pith_short_8","alias_value":"HL5SKYYU","created_at":"2026-07-05T11:05:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:HL5SKYYUUAKKF7UCG5ZQUMGYYY","target":"record","payload":{"canonical_record":{"source":{"id":"2503.23279","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-03-30T01:58:34Z","cross_cats_sorted":["cond-mat.soft","q-bio.CB"],"title_canon_sha256":"1964c35f530c8628d31fdb7b627b4c5a6a5324105290a8877c2fb0b540e2985a","abstract_canon_sha256":"38a819bb380535945ce0ea64fe893f732368949b13c3c5247e1e4634e006defc"},"schema_version":"1.0"},"canonical_sha256":"3afb256314a014a2fe8237730a30d8c6084ff02d5952ee71cbfab3767aa8aa9a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:05:42.750299Z","signature_b64":"StS0ScQ+KFhvZC4bsRb6fyiJhvB1eSR0RVEC8eGEjrCY8G2XDfpvOxQtc4CidZYX+BI1whJhueo7FrQBKBdJCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3afb256314a014a2fe8237730a30d8c6084ff02d5952ee71cbfab3767aa8aa9a","last_reissued_at":"2026-07-05T11:05:42.749813Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:05:42.749813Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.23279","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":"2026-07-05T11:05:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SUmt5RA7V4xp5cVgxcp1owDAIeNTfIwH5i0sW4vIz6BLUq/zS4Vm5WAN2xRWRn4Fe7PPuhGXJNYp3TZk1D51CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T00:36:01.129129Z"},"content_sha256":"6b85886c4be97d8f21201796adf3e279a9e6e2a076aba4ef8ba8a04f0b28dc64","schema_version":"1.0","event_id":"sha256:6b85886c4be97d8f21201796adf3e279a9e6e2a076aba4ef8ba8a04f0b28dc64"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:HL5SKYYUUAKKF7UCG5ZQUMGYYY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Soil-mimicking microfluidic devices reveal restricted flagellar motility of Bradyrhizobium diazoefficiens under microconfinement","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.soft","q-bio.CB"],"primary_cat":"physics.bio-ph","authors_text":"An\\'ibal R. Lodeiro, Juan Pablo Carrillo-Mora, Mar\\'ia Luisa Cordero, Moniellen Pires Monteiro, Nahuel Guti\\'errez, Sof\\'ia Montagna, V. I. Marconi","submitted_at":"2025-03-30T01:58:34Z","abstract_excerpt":"Bradyrhizobium diazoefficiens is a nitrogen-fixing symbiont of soybean, worldwide used as biofertilizer. This soil bacterium possesses two flagellar systems enabling it to swim in water-saturated soils. However, the motility in soil pores, which may be crucial for competitiveness for root nodulation, is difficult to predict. To address this gap, we fabricated microfluidic devices with networks of connected microchannels surrounding grains. In them, we directly visualise bacterial behaviour in transparent geometries mimicking minimalist soils-on-a-chip (SOCs). We measured the population velocit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.23279","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/2503.23279/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":"2026-07-05T11:05:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qq2bQTe4a+zZZJ9JS8xrf0Go2YMSHwmLuxN2ZTAAHxW0nH+y+zULKJgHkyE2uTdZYwf0fkGBxuiFXKmt0SoyCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-24T00:36:01.129658Z"},"content_sha256":"cc0232311fef4b74304cf77ee929933f02c4a349c6790c0b493e63da4cc0c316","schema_version":"1.0","event_id":"sha256:cc0232311fef4b74304cf77ee929933f02c4a349c6790c0b493e63da4cc0c316"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY/bundle.json","state_url":"https://pith.science/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY/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":"2026-08-24T00:36:01Z","links":{"resolver":"https://pith.science/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY","bundle":"https://pith.science/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY/bundle.json","state":"https://pith.science/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HL5SKYYUUAKKF7UCG5ZQUMGYYY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:HL5SKYYUUAKKF7UCG5ZQUMGYYY","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":"38a819bb380535945ce0ea64fe893f732368949b13c3c5247e1e4634e006defc","cross_cats_sorted":["cond-mat.soft","q-bio.CB"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-03-30T01:58:34Z","title_canon_sha256":"1964c35f530c8628d31fdb7b627b4c5a6a5324105290a8877c2fb0b540e2985a"},"schema_version":"1.0","source":{"id":"2503.23279","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.23279","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"arxiv_version","alias_value":"2503.23279v1","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.23279","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"pith_short_12","alias_value":"HL5SKYYUUAKK","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"pith_short_16","alias_value":"HL5SKYYUUAKKF7UC","created_at":"2026-07-05T11:05:42Z"},{"alias_kind":"pith_short_8","alias_value":"HL5SKYYU","created_at":"2026-07-05T11:05:42Z"}],"graph_snapshots":[{"event_id":"sha256:cc0232311fef4b74304cf77ee929933f02c4a349c6790c0b493e63da4cc0c316","target":"graph","created_at":"2026-07-05T11:05:42Z","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/2503.23279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Bradyrhizobium diazoefficiens is a nitrogen-fixing symbiont of soybean, worldwide used as biofertilizer. This soil bacterium possesses two flagellar systems enabling it to swim in water-saturated soils. However, the motility in soil pores, which may be crucial for competitiveness for root nodulation, is difficult to predict. To address this gap, we fabricated microfluidic devices with networks of connected microchannels surrounding grains. In them, we directly visualise bacterial behaviour in transparent geometries mimicking minimalist soils-on-a-chip (SOCs). We measured the population velocit","authors_text":"An\\'ibal R. Lodeiro, Juan Pablo Carrillo-Mora, Mar\\'ia Luisa Cordero, Moniellen Pires Monteiro, Nahuel Guti\\'errez, Sof\\'ia Montagna, V. I. Marconi","cross_cats":["cond-mat.soft","q-bio.CB"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-03-30T01:58:34Z","title":"Soil-mimicking microfluidic devices reveal restricted flagellar motility of Bradyrhizobium diazoefficiens under microconfinement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.23279","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":"sha256:6b85886c4be97d8f21201796adf3e279a9e6e2a076aba4ef8ba8a04f0b28dc64","target":"record","created_at":"2026-07-05T11:05:42Z","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":"38a819bb380535945ce0ea64fe893f732368949b13c3c5247e1e4634e006defc","cross_cats_sorted":["cond-mat.soft","q-bio.CB"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-03-30T01:58:34Z","title_canon_sha256":"1964c35f530c8628d31fdb7b627b4c5a6a5324105290a8877c2fb0b540e2985a"},"schema_version":"1.0","source":{"id":"2503.23279","kind":"arxiv","version":1}},"canonical_sha256":"3afb256314a014a2fe8237730a30d8c6084ff02d5952ee71cbfab3767aa8aa9a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3afb256314a014a2fe8237730a30d8c6084ff02d5952ee71cbfab3767aa8aa9a","first_computed_at":"2026-07-05T11:05:42.749813Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:05:42.749813Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"StS0ScQ+KFhvZC4bsRb6fyiJhvB1eSR0RVEC8eGEjrCY8G2XDfpvOxQtc4CidZYX+BI1whJhueo7FrQBKBdJCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:05:42.750299Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.23279","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b85886c4be97d8f21201796adf3e279a9e6e2a076aba4ef8ba8a04f0b28dc64","sha256:cc0232311fef4b74304cf77ee929933f02c4a349c6790c0b493e63da4cc0c316"],"state_sha256":"90fbcd161780864f9c338578944eb73e4149b00acbdc8dade4fb444e18763fbe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aaxk0kG5vV9gVy9ZpCCilkDXnuJ1Z55fdQv6sNLcM3XQ7o3OwRMv/vLJCgAlL9gUV/nRsCe3NlAygVfAO6DfBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-24T00:36:01.134206Z","bundle_sha256":"7e289713dc5f6d4ebda1143395ee043b19fdb99d8204d489eaa78aa263a1920a"}}