{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:CM36YSMJ775N4VW4ZPYKEMTPFZ","short_pith_number":"pith:CM36YSMJ","canonical_record":{"source":{"id":"1607.03726","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-13T13:41:00Z","cross_cats_sorted":[],"title_canon_sha256":"28544d98626dd57729f9b654713af19146403aa7f5b5215699f2e417523aa8f1","abstract_canon_sha256":"b04c3c79d277795deef95ac9f7e9578ba285c350a87aa73d3385110f2f3563b9"},"schema_version":"1.0"},"canonical_sha256":"1337ec4989fffade56dccbf0a2326f2e5c90be51eb58aab723b138ae82153ef8","source":{"kind":"arxiv","id":"1607.03726","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.03726","created_at":"2026-05-18T01:02:23Z"},{"alias_kind":"arxiv_version","alias_value":"1607.03726v2","created_at":"2026-05-18T01:02:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.03726","created_at":"2026-05-18T01:02:23Z"},{"alias_kind":"pith_short_12","alias_value":"CM36YSMJ775N","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CM36YSMJ775N4VW4","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CM36YSMJ","created_at":"2026-05-18T12:30:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:CM36YSMJ775N4VW4ZPYKEMTPFZ","target":"record","payload":{"canonical_record":{"source":{"id":"1607.03726","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-13T13:41:00Z","cross_cats_sorted":[],"title_canon_sha256":"28544d98626dd57729f9b654713af19146403aa7f5b5215699f2e417523aa8f1","abstract_canon_sha256":"b04c3c79d277795deef95ac9f7e9578ba285c350a87aa73d3385110f2f3563b9"},"schema_version":"1.0"},"canonical_sha256":"1337ec4989fffade56dccbf0a2326f2e5c90be51eb58aab723b138ae82153ef8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:23.476530Z","signature_b64":"KdKpvefc2g9RLuDhyVHy4gMS51FlLtItHxgBz4lbp+6TdVJ8DzRmzGt2j2nHQyZkKgw4dfco3tS9KcWP6qugAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1337ec4989fffade56dccbf0a2326f2e5c90be51eb58aab723b138ae82153ef8","last_reissued_at":"2026-05-18T01:02:23.475854Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:23.475854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.03726","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":"2026-05-18T01:02:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RCJqi8Urfn66MdrcRC6xDNCKK4s1Sx9Hg1ECxvRGoYua8DlvYvqFMh6WO1NuR/DQKzuZt7SmKVPYdaqvBBF6AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T18:36:30.649132Z"},"content_sha256":"a01948dcb9e7f15fa57ce10805d94770d840e936612b937c00b13475cbc73472","schema_version":"1.0","event_id":"sha256:a01948dcb9e7f15fa57ce10805d94770d840e936612b937c00b13475cbc73472"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:CM36YSMJ775N4VW4ZPYKEMTPFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron hydrodynamics dilemma: whirlpools or no whirlpools","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andre K. Geim, Francesco M. D. Pellegrino, Iacopo Torre, Marco Polini","submitted_at":"2016-07-13T13:41:00Z","abstract_excerpt":"In highly viscous electron systems such as, for example, high quality graphene above liquid nitrogen temperature, a linear response to applied electric current becomes essentially nonlocal, which can give rise to a number of new and counterintuitive phenomena including negative nonlocal resistance and current whirlpools. It has also been shown that, although both effects originate from high electron viscosity, a negative voltage drop does not principally require current backflow. In this work, we study the role of geometry on viscous flow and show that confinement effects and relative position"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.03726","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":""},"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":"2026-05-18T01:02:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z5K1gG7B2bLKiO6rS3AEe/0H/LN0iD9f5hzjIXWCwf6EX13d0ygNBN+vvU6yf5eiYl/BBFv20BTaamNG9AP5Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T18:36:30.649799Z"},"content_sha256":"d35162981a01133db5e5a15d937e05a5c38791f28a6ee13f8405e47a2e638d79","schema_version":"1.0","event_id":"sha256:d35162981a01133db5e5a15d937e05a5c38791f28a6ee13f8405e47a2e638d79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ/bundle.json","state_url":"https://pith.science/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ/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":"2026-06-06T18:36:30Z","links":{"resolver":"https://pith.science/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ","bundle":"https://pith.science/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ/bundle.json","state":"https://pith.science/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CM36YSMJ775N4VW4ZPYKEMTPFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CM36YSMJ775N4VW4ZPYKEMTPFZ","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":"b04c3c79d277795deef95ac9f7e9578ba285c350a87aa73d3385110f2f3563b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-13T13:41:00Z","title_canon_sha256":"28544d98626dd57729f9b654713af19146403aa7f5b5215699f2e417523aa8f1"},"schema_version":"1.0","source":{"id":"1607.03726","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.03726","created_at":"2026-05-18T01:02:23Z"},{"alias_kind":"arxiv_version","alias_value":"1607.03726v2","created_at":"2026-05-18T01:02:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.03726","created_at":"2026-05-18T01:02:23Z"},{"alias_kind":"pith_short_12","alias_value":"CM36YSMJ775N","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CM36YSMJ775N4VW4","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CM36YSMJ","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:d35162981a01133db5e5a15d937e05a5c38791f28a6ee13f8405e47a2e638d79","target":"graph","created_at":"2026-05-18T01:02:23Z","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":"In highly viscous electron systems such as, for example, high quality graphene above liquid nitrogen temperature, a linear response to applied electric current becomes essentially nonlocal, which can give rise to a number of new and counterintuitive phenomena including negative nonlocal resistance and current whirlpools. It has also been shown that, although both effects originate from high electron viscosity, a negative voltage drop does not principally require current backflow. In this work, we study the role of geometry on viscous flow and show that confinement effects and relative position","authors_text":"Andre K. Geim, Francesco M. D. Pellegrino, Iacopo Torre, Marco Polini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-13T13:41:00Z","title":"Electron hydrodynamics dilemma: whirlpools or no whirlpools"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.03726","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:a01948dcb9e7f15fa57ce10805d94770d840e936612b937c00b13475cbc73472","target":"record","created_at":"2026-05-18T01:02:23Z","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":"b04c3c79d277795deef95ac9f7e9578ba285c350a87aa73d3385110f2f3563b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-13T13:41:00Z","title_canon_sha256":"28544d98626dd57729f9b654713af19146403aa7f5b5215699f2e417523aa8f1"},"schema_version":"1.0","source":{"id":"1607.03726","kind":"arxiv","version":2}},"canonical_sha256":"1337ec4989fffade56dccbf0a2326f2e5c90be51eb58aab723b138ae82153ef8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1337ec4989fffade56dccbf0a2326f2e5c90be51eb58aab723b138ae82153ef8","first_computed_at":"2026-05-18T01:02:23.475854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:23.475854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KdKpvefc2g9RLuDhyVHy4gMS51FlLtItHxgBz4lbp+6TdVJ8DzRmzGt2j2nHQyZkKgw4dfco3tS9KcWP6qugAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:23.476530Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.03726","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a01948dcb9e7f15fa57ce10805d94770d840e936612b937c00b13475cbc73472","sha256:d35162981a01133db5e5a15d937e05a5c38791f28a6ee13f8405e47a2e638d79"],"state_sha256":"115c791a0fb0f3593f1e5ed77040a8555a48ac22c82a9a5eca6ed0edb487cae8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r1Xs3g6UyZ0lEqdaMkncXOtwSEwv86t2EYczaZ56Uj3prauGETrp7XGsQziPb5gxBlsPC0uxfeAcGrbO9a/BCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T18:36:30.653393Z","bundle_sha256":"c4954bfc7ab59a2195e3c93f2edcd53a53ef0d51c5fdba2823845bb72792e886"}}