{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2XEPK3YVCXMWMC5K7CIYOCJQ64","short_pith_number":"pith:2XEPK3YV","canonical_record":{"source":{"id":"2404.06615","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-04-09T20:54:17Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"3b7d6dea72d0801ef786b078accbb4c2dbe985c4fc0c7b1786d919b4a699aabf","abstract_canon_sha256":"79d9fccb155daa57a6881e8da8d62531f30f64d11eba335e76084c79ea3f925d"},"schema_version":"1.0"},"canonical_sha256":"d5c8f56f1515d9660baaf891870930f715c6e3b378ce2e0a99e1a5746e9a25a6","source":{"kind":"arxiv","id":"2404.06615","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.06615","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"arxiv_version","alias_value":"2404.06615v2","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.06615","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"pith_short_12","alias_value":"2XEPK3YVCXMW","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"2XEPK3YVCXMWMC5K","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"2XEPK3YV","created_at":"2026-07-05T09:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2XEPK3YVCXMWMC5K7CIYOCJQ64","target":"record","payload":{"canonical_record":{"source":{"id":"2404.06615","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-04-09T20:54:17Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"3b7d6dea72d0801ef786b078accbb4c2dbe985c4fc0c7b1786d919b4a699aabf","abstract_canon_sha256":"79d9fccb155daa57a6881e8da8d62531f30f64d11eba335e76084c79ea3f925d"},"schema_version":"1.0"},"canonical_sha256":"d5c8f56f1515d9660baaf891870930f715c6e3b378ce2e0a99e1a5746e9a25a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:33:30.668555Z","signature_b64":"7Yd9bDmOCSIhjsnj57ae59HlJ81NEQE5sVw9+aqpZ2F8Mf40XU0zJQKaqbFfT2zjbT3iS77ZRpEvSUVQDm9qAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5c8f56f1515d9660baaf891870930f715c6e3b378ce2e0a99e1a5746e9a25a6","last_reissued_at":"2026-07-05T09:33:30.668054Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:33:30.668054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.06615","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:33:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RDvVls7QHQ5B5ldr6oJvk1TDzhhgI3QqIAd4FDTLaJYEy70kylu0oPKmc9zLcIajlB4OpA91+RHhWA34BSk4DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T06:31:09.342652Z"},"content_sha256":"bb986def522d9f7dc768557860de8e1077ed047b030fb5ba7d41239793c085c5","schema_version":"1.0","event_id":"sha256:bb986def522d9f7dc768557860de8e1077ed047b030fb5ba7d41239793c085c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2XEPK3YVCXMWMC5K7CIYOCJQ64","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inertial active matter with Coulomb friction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.soft","authors_text":"Alexander P. Antonov, Anton Ldov, Christian Scholz, Hartmut L\\\"owen, Lorenzo Caprini","submitted_at":"2024-04-09T20:54:17Z","abstract_excerpt":"Friction is central to the motion of active (self-propelled) objects such as bacteria, animals, and robots. While in a viscous fluid friction is described by Stokes's law, objects in contact with other solid bodies are often governed by more complex empirical friction laws. Here, we study active particles subject to Coulomb friction using a combination of active granular experiments and simulations, supported by theoretical predictions. The interplay of friction and activity forces induces a rich behavior resulting in three distinct dynamical regimes. While for low activity, Brownian motion is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.06615","kind":"arxiv","version":2},"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/2404.06615/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":"2026-07-05T09:33:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UHh/uxkKzyRYej7WzKKZnLRrG9rFfEkB6wq7u9slqiiXtawQwxa0/pumd7S/qPh70tYgOZQs80H2CAsvxOvLCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T06:31:09.343279Z"},"content_sha256":"67c393f7aa327ad6f1db276453c884d38659a8d475eec556d958430e5a6ebd46","schema_version":"1.0","event_id":"sha256:67c393f7aa327ad6f1db276453c884d38659a8d475eec556d958430e5a6ebd46"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64/bundle.json","state_url":"https://pith.science/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64/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":"2026-08-14T06:31:09Z","links":{"resolver":"https://pith.science/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64","bundle":"https://pith.science/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64/bundle.json","state":"https://pith.science/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2XEPK3YVCXMWMC5K7CIYOCJQ64/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2XEPK3YVCXMWMC5K7CIYOCJQ64","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":"79d9fccb155daa57a6881e8da8d62531f30f64d11eba335e76084c79ea3f925d","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-04-09T20:54:17Z","title_canon_sha256":"3b7d6dea72d0801ef786b078accbb4c2dbe985c4fc0c7b1786d919b4a699aabf"},"schema_version":"1.0","source":{"id":"2404.06615","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.06615","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"arxiv_version","alias_value":"2404.06615v2","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.06615","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"pith_short_12","alias_value":"2XEPK3YVCXMW","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"2XEPK3YVCXMWMC5K","created_at":"2026-07-05T09:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"2XEPK3YV","created_at":"2026-07-05T09:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:67c393f7aa327ad6f1db276453c884d38659a8d475eec556d958430e5a6ebd46","target":"graph","created_at":"2026-07-05T09:33:30Z","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/2404.06615/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Friction is central to the motion of active (self-propelled) objects such as bacteria, animals, and robots. While in a viscous fluid friction is described by Stokes's law, objects in contact with other solid bodies are often governed by more complex empirical friction laws. Here, we study active particles subject to Coulomb friction using a combination of active granular experiments and simulations, supported by theoretical predictions. The interplay of friction and activity forces induces a rich behavior resulting in three distinct dynamical regimes. While for low activity, Brownian motion is","authors_text":"Alexander P. Antonov, Anton Ldov, Christian Scholz, Hartmut L\\\"owen, Lorenzo Caprini","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-04-09T20:54:17Z","title":"Inertial active matter with Coulomb friction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.06615","kind":"arxiv","version":2},"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:bb986def522d9f7dc768557860de8e1077ed047b030fb5ba7d41239793c085c5","target":"record","created_at":"2026-07-05T09:33:30Z","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":"79d9fccb155daa57a6881e8da8d62531f30f64d11eba335e76084c79ea3f925d","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-04-09T20:54:17Z","title_canon_sha256":"3b7d6dea72d0801ef786b078accbb4c2dbe985c4fc0c7b1786d919b4a699aabf"},"schema_version":"1.0","source":{"id":"2404.06615","kind":"arxiv","version":2}},"canonical_sha256":"d5c8f56f1515d9660baaf891870930f715c6e3b378ce2e0a99e1a5746e9a25a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5c8f56f1515d9660baaf891870930f715c6e3b378ce2e0a99e1a5746e9a25a6","first_computed_at":"2026-07-05T09:33:30.668054Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:33:30.668054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7Yd9bDmOCSIhjsnj57ae59HlJ81NEQE5sVw9+aqpZ2F8Mf40XU0zJQKaqbFfT2zjbT3iS77ZRpEvSUVQDm9qAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:33:30.668555Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.06615","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb986def522d9f7dc768557860de8e1077ed047b030fb5ba7d41239793c085c5","sha256:67c393f7aa327ad6f1db276453c884d38659a8d475eec556d958430e5a6ebd46"],"state_sha256":"5308e9b657d66c0c5c2bc2bc59e51818483c9e8ef49c863952d1d6912ca913e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"htf296/yQK0dfEsV0skCwJNj6y/lNXh2nMB38HwzjDV19RoFgLt4Aom/MJu8ZAMU9e/W68qKeRoB5Ynz9Qv+Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T06:31:09.352923Z","bundle_sha256":"9939983e2fe074bc5e5ec465f6c0a2e1232781c328bfbe356e29617a695a32e2"}}