{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SFMGGYHSKZEC5HMUJEIYHTDK22","short_pith_number":"pith:SFMGGYHS","canonical_record":{"source":{"id":"1411.2354","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-10T09:01:25Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"b27426adaca4bbade85ae271e6543162ac80715ac743bcadffd4cc4f7fda9756","abstract_canon_sha256":"83c000675cad08db9f7a5279e3f9fb9fa71c92bef3bf0ac9a550762db739b8ec"},"schema_version":"1.0"},"canonical_sha256":"91586360f256482e9d94491183cc6ad6b506b324ff55c0455195f62fc3001450","source":{"kind":"arxiv","id":"1411.2354","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.2354","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"arxiv_version","alias_value":"1411.2354v1","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.2354","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"pith_short_12","alias_value":"SFMGGYHSKZEC","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SFMGGYHSKZEC5HMU","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SFMGGYHS","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SFMGGYHSKZEC5HMUJEIYHTDK22","target":"record","payload":{"canonical_record":{"source":{"id":"1411.2354","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-10T09:01:25Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"b27426adaca4bbade85ae271e6543162ac80715ac743bcadffd4cc4f7fda9756","abstract_canon_sha256":"83c000675cad08db9f7a5279e3f9fb9fa71c92bef3bf0ac9a550762db739b8ec"},"schema_version":"1.0"},"canonical_sha256":"91586360f256482e9d94491183cc6ad6b506b324ff55c0455195f62fc3001450","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:33.724306Z","signature_b64":"68myr+nSCjJdCkvCTxm+rRzVwxK0vM8MPCYG6AS42xvZFM/sOxjgzYpNE+wWWrSBt/TKs7es1tJ6h95Wlr8qCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91586360f256482e9d94491183cc6ad6b506b324ff55c0455195f62fc3001450","last_reissued_at":"2026-05-18T01:41:33.723590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:33.723590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.2354","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":"2026-05-18T01:41:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G6MOxx+Jftml2fSWY/swTYP2JFZME73ZPE7DNwvMi/rlgRU0DZos+ZVv/Vk50amjNK3zljqq9cJy02Fg7+wxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T14:26:11.570885Z"},"content_sha256":"7ced5bbb76a946f4fb8d845c6689eb47fd7ed0cac4b15648cba372e95a09f5be","schema_version":"1.0","event_id":"sha256:7ced5bbb76a946f4fb8d845c6689eb47fd7ed0cac4b15648cba372e95a09f5be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SFMGGYHSKZEC5HMUJEIYHTDK22","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamics of elastic dumbbells sedimenting in a viscous fluid: oscillations and hydrodynamic repulsion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"physics.flu-dyn","authors_text":"Marek Bukowicki, Maria L. Ekiel-Jezewska, Marta Gruca","submitted_at":"2014-11-10T09:01:25Z","abstract_excerpt":"Hydrodynamic interactions between two identical elastic dumbbells settling under gravity in a viscous fluid at low-Reynolds-number are investigated within the point-particle model. Evolution of a benchmark initial configuration is studied, in which the dumbbells are vertical and their centres are aligned horizontally. Rigid dumbbells and pairs of separate beads starting from the same positions tumble periodically while settling down. We find that elasticity (which breaks time-reversal symmetry of the motion) significantly affects the system's dynamics. This is remarkable taking into account th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2354","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":"2026-05-18T01:41:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6LHGvO3kCItubrTDVAQx+vN/Ahb1UrEeLKzZmo//9ma5LDYnjgQSbYsxhqx10mgkJwRTBpcbYV18grC4n85Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T14:26:11.571226Z"},"content_sha256":"669ad18d5246a35e2457d0b1b3af9edf511e5d42f194b71a18ad6dd0899bc8bd","schema_version":"1.0","event_id":"sha256:669ad18d5246a35e2457d0b1b3af9edf511e5d42f194b71a18ad6dd0899bc8bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SFMGGYHSKZEC5HMUJEIYHTDK22/bundle.json","state_url":"https://pith.science/pith/SFMGGYHSKZEC5HMUJEIYHTDK22/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SFMGGYHSKZEC5HMUJEIYHTDK22/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":"2026-06-26T14:26:11Z","links":{"resolver":"https://pith.science/pith/SFMGGYHSKZEC5HMUJEIYHTDK22","bundle":"https://pith.science/pith/SFMGGYHSKZEC5HMUJEIYHTDK22/bundle.json","state":"https://pith.science/pith/SFMGGYHSKZEC5HMUJEIYHTDK22/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SFMGGYHSKZEC5HMUJEIYHTDK22/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SFMGGYHSKZEC5HMUJEIYHTDK22","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":"83c000675cad08db9f7a5279e3f9fb9fa71c92bef3bf0ac9a550762db739b8ec","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-10T09:01:25Z","title_canon_sha256":"b27426adaca4bbade85ae271e6543162ac80715ac743bcadffd4cc4f7fda9756"},"schema_version":"1.0","source":{"id":"1411.2354","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.2354","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"arxiv_version","alias_value":"1411.2354v1","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.2354","created_at":"2026-05-18T01:41:33Z"},{"alias_kind":"pith_short_12","alias_value":"SFMGGYHSKZEC","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SFMGGYHSKZEC5HMU","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SFMGGYHS","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:669ad18d5246a35e2457d0b1b3af9edf511e5d42f194b71a18ad6dd0899bc8bd","target":"graph","created_at":"2026-05-18T01:41:33Z","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":"Hydrodynamic interactions between two identical elastic dumbbells settling under gravity in a viscous fluid at low-Reynolds-number are investigated within the point-particle model. Evolution of a benchmark initial configuration is studied, in which the dumbbells are vertical and their centres are aligned horizontally. Rigid dumbbells and pairs of separate beads starting from the same positions tumble periodically while settling down. We find that elasticity (which breaks time-reversal symmetry of the motion) significantly affects the system's dynamics. This is remarkable taking into account th","authors_text":"Marek Bukowicki, Maria L. Ekiel-Jezewska, Marta Gruca","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-10T09:01:25Z","title":"Dynamics of elastic dumbbells sedimenting in a viscous fluid: oscillations and hydrodynamic repulsion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.2354","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":"sha256:7ced5bbb76a946f4fb8d845c6689eb47fd7ed0cac4b15648cba372e95a09f5be","target":"record","created_at":"2026-05-18T01:41:33Z","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":"83c000675cad08db9f7a5279e3f9fb9fa71c92bef3bf0ac9a550762db739b8ec","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-11-10T09:01:25Z","title_canon_sha256":"b27426adaca4bbade85ae271e6543162ac80715ac743bcadffd4cc4f7fda9756"},"schema_version":"1.0","source":{"id":"1411.2354","kind":"arxiv","version":1}},"canonical_sha256":"91586360f256482e9d94491183cc6ad6b506b324ff55c0455195f62fc3001450","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91586360f256482e9d94491183cc6ad6b506b324ff55c0455195f62fc3001450","first_computed_at":"2026-05-18T01:41:33.723590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:33.723590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"68myr+nSCjJdCkvCTxm+rRzVwxK0vM8MPCYG6AS42xvZFM/sOxjgzYpNE+wWWrSBt/TKs7es1tJ6h95Wlr8qCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:33.724306Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.2354","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ced5bbb76a946f4fb8d845c6689eb47fd7ed0cac4b15648cba372e95a09f5be","sha256:669ad18d5246a35e2457d0b1b3af9edf511e5d42f194b71a18ad6dd0899bc8bd"],"state_sha256":"dd8a3109099164b83e373edee8dc86ba437404adec2e37a5683c99197e6e0000"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6DIBKNhtCjdQCye2m1YEAkYjYZ+OQSCQljxUXnDLk6jMVfgABXBrQNZ/JMIMLVi+pHOzMJUH4DPS+hWQt25uBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T14:26:11.573250Z","bundle_sha256":"74a3a64fdb3fb7e5fdc2b2a1d9fc0b86266c4d59c901723f0ccbd9b4cb46f4f6"}}