{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ORSSMZ2JTLMBQWPVWHKGPM5AGL","short_pith_number":"pith:ORSSMZ2J","canonical_record":{"source":{"id":"1403.1405","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-03-06T11:04:02Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"06c056886ae9a0467ab368f066f3f56683407e6e8adf27ef7f824f0e65206f62","abstract_canon_sha256":"0c0700c55feccd78ecbc5d65fc4c777e8befaa306cbb8ae814c6fbf7e68077a6"},"schema_version":"1.0"},"canonical_sha256":"74652667499ad81859f5b1d467b3a032c81da37629221f40cfb11b261801969c","source":{"kind":"arxiv","id":"1403.1405","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.1405","created_at":"2026-05-18T01:44:19Z"},{"alias_kind":"arxiv_version","alias_value":"1403.1405v1","created_at":"2026-05-18T01:44:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1405","created_at":"2026-05-18T01:44:19Z"},{"alias_kind":"pith_short_12","alias_value":"ORSSMZ2JTLMB","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"ORSSMZ2JTLMBQWPV","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"ORSSMZ2J","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ORSSMZ2JTLMBQWPVWHKGPM5AGL","target":"record","payload":{"canonical_record":{"source":{"id":"1403.1405","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-03-06T11:04:02Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"06c056886ae9a0467ab368f066f3f56683407e6e8adf27ef7f824f0e65206f62","abstract_canon_sha256":"0c0700c55feccd78ecbc5d65fc4c777e8befaa306cbb8ae814c6fbf7e68077a6"},"schema_version":"1.0"},"canonical_sha256":"74652667499ad81859f5b1d467b3a032c81da37629221f40cfb11b261801969c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:19.018748Z","signature_b64":"dMYtbEKssmsyusRthkQmxGnZXeAHx0ZDSVhDgztqyjbBEdyf3MC+QxGkSvv7rLh7niIKHYWO05HY+OU3dzi0Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"74652667499ad81859f5b1d467b3a032c81da37629221f40cfb11b261801969c","last_reissued_at":"2026-05-18T01:44:19.018116Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:19.018116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.1405","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":"2026-05-18T01:44:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aXHy2zgBpHSsKB5x7hC4MZfN19TiNh+1gogW962jIPKW6MWpdrc7k6PfREiJz3Rgjp/YXM/XmjNnz6QkkkEgAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T16:59:02.511331Z"},"content_sha256":"b9252d19af60a5054dc9a00361ebb78fc806ec7a49cb89fb64778e5da52269d7","schema_version":"1.0","event_id":"sha256:b9252d19af60a5054dc9a00361ebb78fc806ec7a49cb89fb64778e5da52269d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ORSSMZ2JTLMBQWPVWHKGPM5AGL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Living bacteria rheology: population growth, aggregation patterns and cooperative behaviour under different shear flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.bio-ph","authors_text":"C. R. Leal, I. R. Grilo, P. L. Almeida, P. Patricio, R. G. Sobral, R. Portela, T. Cidade","submitted_at":"2014-03-06T11:04:02Z","abstract_excerpt":"The activity of growing living bacteria was investigated using real-time and in situ rheology -- in stationary and oscillatory shear. Two different strains of the human pathogen Staphylococcus aureus -- strain COL and its isogenic cell wall autolysis mutant -- were considered in this work. For low bacteria density, strain COL forms small clusters, while the mutant, presenting deficient cell separation, forms irregular larger aggregates. In the early stages of growth, when subjected to a stationary shear, the viscosity of both strains increases with the population of cells. As the bacteria reac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1405","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":"2026-05-18T01:44:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n7fMhAY2rtbEV+mUInuOg0Nos0s5bm5PS0zY6cI/NikBYtkBsvltTzZ53Wxp9232UImSy0R3FZayN5JR3GfGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T16:59:02.511680Z"},"content_sha256":"dc10c255fe66652d8dbfbb99705caf52e8b8ec886b46db949686ceec6a6fb1f4","schema_version":"1.0","event_id":"sha256:dc10c255fe66652d8dbfbb99705caf52e8b8ec886b46db949686ceec6a6fb1f4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL/bundle.json","state_url":"https://pith.science/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL/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":"2026-06-30T16:59:02Z","links":{"resolver":"https://pith.science/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL","bundle":"https://pith.science/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL/bundle.json","state":"https://pith.science/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ORSSMZ2JTLMBQWPVWHKGPM5AGL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ORSSMZ2JTLMBQWPVWHKGPM5AGL","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":"0c0700c55feccd78ecbc5d65fc4c777e8befaa306cbb8ae814c6fbf7e68077a6","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-03-06T11:04:02Z","title_canon_sha256":"06c056886ae9a0467ab368f066f3f56683407e6e8adf27ef7f824f0e65206f62"},"schema_version":"1.0","source":{"id":"1403.1405","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.1405","created_at":"2026-05-18T01:44:19Z"},{"alias_kind":"arxiv_version","alias_value":"1403.1405v1","created_at":"2026-05-18T01:44:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1405","created_at":"2026-05-18T01:44:19Z"},{"alias_kind":"pith_short_12","alias_value":"ORSSMZ2JTLMB","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"ORSSMZ2JTLMBQWPV","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"ORSSMZ2J","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:dc10c255fe66652d8dbfbb99705caf52e8b8ec886b46db949686ceec6a6fb1f4","target":"graph","created_at":"2026-05-18T01:44:19Z","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":"The activity of growing living bacteria was investigated using real-time and in situ rheology -- in stationary and oscillatory shear. Two different strains of the human pathogen Staphylococcus aureus -- strain COL and its isogenic cell wall autolysis mutant -- were considered in this work. For low bacteria density, strain COL forms small clusters, while the mutant, presenting deficient cell separation, forms irregular larger aggregates. In the early stages of growth, when subjected to a stationary shear, the viscosity of both strains increases with the population of cells. As the bacteria reac","authors_text":"C. R. Leal, I. R. Grilo, P. L. Almeida, P. Patricio, R. G. Sobral, R. Portela, T. Cidade","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-03-06T11:04:02Z","title":"Living bacteria rheology: population growth, aggregation patterns and cooperative behaviour under different shear flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1405","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:b9252d19af60a5054dc9a00361ebb78fc806ec7a49cb89fb64778e5da52269d7","target":"record","created_at":"2026-05-18T01:44:19Z","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":"0c0700c55feccd78ecbc5d65fc4c777e8befaa306cbb8ae814c6fbf7e68077a6","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-03-06T11:04:02Z","title_canon_sha256":"06c056886ae9a0467ab368f066f3f56683407e6e8adf27ef7f824f0e65206f62"},"schema_version":"1.0","source":{"id":"1403.1405","kind":"arxiv","version":1}},"canonical_sha256":"74652667499ad81859f5b1d467b3a032c81da37629221f40cfb11b261801969c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"74652667499ad81859f5b1d467b3a032c81da37629221f40cfb11b261801969c","first_computed_at":"2026-05-18T01:44:19.018116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:19.018116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dMYtbEKssmsyusRthkQmxGnZXeAHx0ZDSVhDgztqyjbBEdyf3MC+QxGkSvv7rLh7niIKHYWO05HY+OU3dzi0Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:19.018748Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.1405","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9252d19af60a5054dc9a00361ebb78fc806ec7a49cb89fb64778e5da52269d7","sha256:dc10c255fe66652d8dbfbb99705caf52e8b8ec886b46db949686ceec6a6fb1f4"],"state_sha256":"447883d50a831e70805d74a454dee5f99bfc33abe410a07f2de54328f23c075b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V3XlrFMLahlC37Iq63Bdmg8F8BctWBo/CPWyB/OmPEBU9Gq9ouMxjEAsUvU1NQRd0NKYX1k0XHByJFRXgBoQBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T16:59:02.513546Z","bundle_sha256":"7fd679c365065081e0c7ca6288fbdc4846f0ebc199f18180c369af632dbc6f3f"}}