{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:G2QK35SB4LQQQC2LSKVHX7RDL5","short_pith_number":"pith:G2QK35SB","canonical_record":{"source":{"id":"1811.11657","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-11-28T16:27:57Z","cross_cats_sorted":[],"title_canon_sha256":"828427d4d6ed9c7b9dff397f730a2ee013aff84d8265fea195e3f36ab073ffb7","abstract_canon_sha256":"be84185a9db9b19c3c5880961454ade5bd49364049aabafe7442d455ea160950"},"schema_version":"1.0"},"canonical_sha256":"36a0adf641e2e1080b4b92aa7bfe235f780b16356e6dee4a021a4cccd995b540","source":{"kind":"arxiv","id":"1811.11657","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.11657","created_at":"2026-05-17T23:59:40Z"},{"alias_kind":"arxiv_version","alias_value":"1811.11657v1","created_at":"2026-05-17T23:59:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.11657","created_at":"2026-05-17T23:59:40Z"},{"alias_kind":"pith_short_12","alias_value":"G2QK35SB4LQQ","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G2QK35SB4LQQQC2L","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G2QK35SB","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:G2QK35SB4LQQQC2LSKVHX7RDL5","target":"record","payload":{"canonical_record":{"source":{"id":"1811.11657","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-11-28T16:27:57Z","cross_cats_sorted":[],"title_canon_sha256":"828427d4d6ed9c7b9dff397f730a2ee013aff84d8265fea195e3f36ab073ffb7","abstract_canon_sha256":"be84185a9db9b19c3c5880961454ade5bd49364049aabafe7442d455ea160950"},"schema_version":"1.0"},"canonical_sha256":"36a0adf641e2e1080b4b92aa7bfe235f780b16356e6dee4a021a4cccd995b540","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:40.378755Z","signature_b64":"uFFa8nX6rivWj6n1p2TwFmDdQ0+mQhOeI7aws8kBqTuDVXSEqPnG/rkh62fd2Ro01RDV1wFnHYY3r6g2cWwQCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"36a0adf641e2e1080b4b92aa7bfe235f780b16356e6dee4a021a4cccd995b540","last_reissued_at":"2026-05-17T23:59:40.378019Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:40.378019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.11657","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":"2026-05-17T23:59:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zNOlS+FoCnatVSC450X52q6/rTEwPs863xJNGZau7v1Wbn8wcAjLIHt51J3jV1gbfh/HKHEnk+h7oUBBmY4fAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:28:34.466663Z"},"content_sha256":"bf3d482fc49143bd218dde4e503ff3df05e761ac4bd9db371a94698b7d558096","schema_version":"1.0","event_id":"sha256:bf3d482fc49143bd218dde4e503ff3df05e761ac4bd9db371a94698b7d558096"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:G2QK35SB4LQQQC2LSKVHX7RDL5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An analytical effective excess charge density model to predict the streaming potential generated by unsaturated flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Damien Jougnot, Luis Guarracino, Mariangeles Soldi","submitted_at":"2018-11-28T16:27:57Z","abstract_excerpt":"The self-potential (SP) method is a passive geophysical method that relies on the measurement of naturally occurring electrical field. One of the contributions to the SP signal is the streaming potential, which is of particular interest in hydrogeophysics as it is directly related to both the water flow and porous medium properties. The streaming current is generated by the relative displacement of an excess of electrical charges located in the electrical double layer surrounding the minerals of the porous media. In this study, we develop a physically based analytical model to estimate the eff"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.11657","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":"2026-05-17T23:59:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mPwtmaq8HbkEr8Mw5TvqoeaVlvUqGtyapPm93z79iYjm0yd0roS25V6vlJDfJ+pie9E3Fw6AmZG11o+/aNHSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:28:34.467263Z"},"content_sha256":"32c05f9d79851a2f78cd04b1e5c1e219e09d7955458df80df06922042978e252","schema_version":"1.0","event_id":"sha256:32c05f9d79851a2f78cd04b1e5c1e219e09d7955458df80df06922042978e252"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G2QK35SB4LQQQC2LSKVHX7RDL5/bundle.json","state_url":"https://pith.science/pith/G2QK35SB4LQQQC2LSKVHX7RDL5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G2QK35SB4LQQQC2LSKVHX7RDL5/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":"2026-06-01T15:28:34Z","links":{"resolver":"https://pith.science/pith/G2QK35SB4LQQQC2LSKVHX7RDL5","bundle":"https://pith.science/pith/G2QK35SB4LQQQC2LSKVHX7RDL5/bundle.json","state":"https://pith.science/pith/G2QK35SB4LQQQC2LSKVHX7RDL5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G2QK35SB4LQQQC2LSKVHX7RDL5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:G2QK35SB4LQQQC2LSKVHX7RDL5","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":"be84185a9db9b19c3c5880961454ade5bd49364049aabafe7442d455ea160950","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-11-28T16:27:57Z","title_canon_sha256":"828427d4d6ed9c7b9dff397f730a2ee013aff84d8265fea195e3f36ab073ffb7"},"schema_version":"1.0","source":{"id":"1811.11657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.11657","created_at":"2026-05-17T23:59:40Z"},{"alias_kind":"arxiv_version","alias_value":"1811.11657v1","created_at":"2026-05-17T23:59:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.11657","created_at":"2026-05-17T23:59:40Z"},{"alias_kind":"pith_short_12","alias_value":"G2QK35SB4LQQ","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G2QK35SB4LQQQC2L","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G2QK35SB","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:32c05f9d79851a2f78cd04b1e5c1e219e09d7955458df80df06922042978e252","target":"graph","created_at":"2026-05-17T23:59:40Z","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 self-potential (SP) method is a passive geophysical method that relies on the measurement of naturally occurring electrical field. One of the contributions to the SP signal is the streaming potential, which is of particular interest in hydrogeophysics as it is directly related to both the water flow and porous medium properties. The streaming current is generated by the relative displacement of an excess of electrical charges located in the electrical double layer surrounding the minerals of the porous media. In this study, we develop a physically based analytical model to estimate the eff","authors_text":"Damien Jougnot, Luis Guarracino, Mariangeles Soldi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-11-28T16:27:57Z","title":"An analytical effective excess charge density model to predict the streaming potential generated by unsaturated flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.11657","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:bf3d482fc49143bd218dde4e503ff3df05e761ac4bd9db371a94698b7d558096","target":"record","created_at":"2026-05-17T23:59:40Z","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":"be84185a9db9b19c3c5880961454ade5bd49364049aabafe7442d455ea160950","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-11-28T16:27:57Z","title_canon_sha256":"828427d4d6ed9c7b9dff397f730a2ee013aff84d8265fea195e3f36ab073ffb7"},"schema_version":"1.0","source":{"id":"1811.11657","kind":"arxiv","version":1}},"canonical_sha256":"36a0adf641e2e1080b4b92aa7bfe235f780b16356e6dee4a021a4cccd995b540","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36a0adf641e2e1080b4b92aa7bfe235f780b16356e6dee4a021a4cccd995b540","first_computed_at":"2026-05-17T23:59:40.378019Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:40.378019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uFFa8nX6rivWj6n1p2TwFmDdQ0+mQhOeI7aws8kBqTuDVXSEqPnG/rkh62fd2Ro01RDV1wFnHYY3r6g2cWwQCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:40.378755Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.11657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf3d482fc49143bd218dde4e503ff3df05e761ac4bd9db371a94698b7d558096","sha256:32c05f9d79851a2f78cd04b1e5c1e219e09d7955458df80df06922042978e252"],"state_sha256":"ac6a96cc23c6101d26465172c527cd4b3514730d3081764d19721396ebe735da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s21UjtXwSTTTBEZA6nhXXmSN3dE9l5O0YnNcKnw4jZwt+asv7Vb+pM3i7+VL9w2lILGoVzR0jhRLW0zIh1VSBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T15:28:34.470048Z","bundle_sha256":"f6bba65e70166db795c41efc8842d549ff0504610a12d5f88c96aa3c06b64da0"}}