{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:CAILWZKV4GB62WMT5N5YNQ5FWY","short_pith_number":"pith:CAILWZKV","canonical_record":{"source":{"id":"1802.06262","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-02-17T17:27:29Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"dc3fa9f855925f1f6c55eb9ce647fd1bac594865f7ed39113bc1a5acaf402e6e","abstract_canon_sha256":"2f7c4a22a96fae7d7325f6ead474897b55015deb52a98878a9ccb535c2ad3053"},"schema_version":"1.0"},"canonical_sha256":"1010bb6555e183ed5993eb7b86c3a5b63aeae0d216273e880f1b660343195c0c","source":{"kind":"arxiv","id":"1802.06262","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06262","created_at":"2026-05-18T00:23:03Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06262v1","created_at":"2026-05-18T00:23:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06262","created_at":"2026-05-18T00:23:03Z"},{"alias_kind":"pith_short_12","alias_value":"CAILWZKV4GB6","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CAILWZKV4GB62WMT","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CAILWZKV","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:CAILWZKV4GB62WMT5N5YNQ5FWY","target":"record","payload":{"canonical_record":{"source":{"id":"1802.06262","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-02-17T17:27:29Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"dc3fa9f855925f1f6c55eb9ce647fd1bac594865f7ed39113bc1a5acaf402e6e","abstract_canon_sha256":"2f7c4a22a96fae7d7325f6ead474897b55015deb52a98878a9ccb535c2ad3053"},"schema_version":"1.0"},"canonical_sha256":"1010bb6555e183ed5993eb7b86c3a5b63aeae0d216273e880f1b660343195c0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:03.888460Z","signature_b64":"kvi07X08QU9OhOkgwuqPKnc3ApH1XEyS4zQlWSPdfiuvr3vohpuTRgFK/T5p2m1Ey0ChGZHGXXZUp+Z9KUttDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1010bb6555e183ed5993eb7b86c3a5b63aeae0d216273e880f1b660343195c0c","last_reissued_at":"2026-05-18T00:23:03.887855Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:03.887855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.06262","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":"2026-05-18T00:23:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BzSUiVssWHhrgheUW9SmtAVmOLhXvFY89VW6nh6eHwRm2qlELSXmziHPRXQ90/hW/NpGFh0i3knfZW/xVPg2Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:39:53.701365Z"},"content_sha256":"1554dd5db861ee62449492c60943cbe6f644984a3d81c78aee19292e6de095c0","schema_version":"1.0","event_id":"sha256:1554dd5db861ee62449492c60943cbe6f644984a3d81c78aee19292e6de095c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:CAILWZKV4GB62WMT5N5YNQ5FWY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Patchy Saturation of Fluids in Nanoporous Media by Ultrasound","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.geo-ph","authors_text":"Boris Gurevich, Gennady Y. Gor, Michel M. Nzikou","submitted_at":"2018-02-17T17:27:29Z","abstract_excerpt":"Nanoporous materials provide high surface area per unit mass and are capable of fluids adsorption. While the measurements of overall amount of fluid adsorbed by a nanopororus sample are straightforward, probing the fluid spacial distribution is non-trivial. We consider published data on adsorption and desorption of fluids in nanoporous glasses reported along with the measurements of ultrasonic waves propagation. We analyse these using Biot's theory of dynamic poroelasticity, approximating the patches as spherical shells. Our calculations show that on adsorption the patch diameter is on the ord"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06262","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":"2026-05-18T00:23:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AeHksySR6tCw5DtlkFBGn0swnadrAVG/puWpUuJKAc9gnnWD9zPCuUBXr4jxR1euzOcswqA8xsR+eUneDcuIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T15:39:53.701718Z"},"content_sha256":"d06f196e1cd1b3537f3e6b02e11a04aee0148de4390befe8572cd18bf7c2dd4c","schema_version":"1.0","event_id":"sha256:d06f196e1cd1b3537f3e6b02e11a04aee0148de4390befe8572cd18bf7c2dd4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CAILWZKV4GB62WMT5N5YNQ5FWY/bundle.json","state_url":"https://pith.science/pith/CAILWZKV4GB62WMT5N5YNQ5FWY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CAILWZKV4GB62WMT5N5YNQ5FWY/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":"2026-06-01T15:39:53Z","links":{"resolver":"https://pith.science/pith/CAILWZKV4GB62WMT5N5YNQ5FWY","bundle":"https://pith.science/pith/CAILWZKV4GB62WMT5N5YNQ5FWY/bundle.json","state":"https://pith.science/pith/CAILWZKV4GB62WMT5N5YNQ5FWY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CAILWZKV4GB62WMT5N5YNQ5FWY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CAILWZKV4GB62WMT5N5YNQ5FWY","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":"2f7c4a22a96fae7d7325f6ead474897b55015deb52a98878a9ccb535c2ad3053","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-02-17T17:27:29Z","title_canon_sha256":"dc3fa9f855925f1f6c55eb9ce647fd1bac594865f7ed39113bc1a5acaf402e6e"},"schema_version":"1.0","source":{"id":"1802.06262","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06262","created_at":"2026-05-18T00:23:03Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06262v1","created_at":"2026-05-18T00:23:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06262","created_at":"2026-05-18T00:23:03Z"},{"alias_kind":"pith_short_12","alias_value":"CAILWZKV4GB6","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CAILWZKV4GB62WMT","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CAILWZKV","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:d06f196e1cd1b3537f3e6b02e11a04aee0148de4390befe8572cd18bf7c2dd4c","target":"graph","created_at":"2026-05-18T00:23:03Z","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":"Nanoporous materials provide high surface area per unit mass and are capable of fluids adsorption. While the measurements of overall amount of fluid adsorbed by a nanopororus sample are straightforward, probing the fluid spacial distribution is non-trivial. We consider published data on adsorption and desorption of fluids in nanoporous glasses reported along with the measurements of ultrasonic waves propagation. We analyse these using Biot's theory of dynamic poroelasticity, approximating the patches as spherical shells. Our calculations show that on adsorption the patch diameter is on the ord","authors_text":"Boris Gurevich, Gennady Y. Gor, Michel M. Nzikou","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-02-17T17:27:29Z","title":"Probing Patchy Saturation of Fluids in Nanoporous Media by Ultrasound"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06262","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":"sha256:1554dd5db861ee62449492c60943cbe6f644984a3d81c78aee19292e6de095c0","target":"record","created_at":"2026-05-18T00:23:03Z","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":"2f7c4a22a96fae7d7325f6ead474897b55015deb52a98878a9ccb535c2ad3053","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2018-02-17T17:27:29Z","title_canon_sha256":"dc3fa9f855925f1f6c55eb9ce647fd1bac594865f7ed39113bc1a5acaf402e6e"},"schema_version":"1.0","source":{"id":"1802.06262","kind":"arxiv","version":1}},"canonical_sha256":"1010bb6555e183ed5993eb7b86c3a5b63aeae0d216273e880f1b660343195c0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1010bb6555e183ed5993eb7b86c3a5b63aeae0d216273e880f1b660343195c0c","first_computed_at":"2026-05-18T00:23:03.887855Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:03.887855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kvi07X08QU9OhOkgwuqPKnc3ApH1XEyS4zQlWSPdfiuvr3vohpuTRgFK/T5p2m1Ey0ChGZHGXXZUp+Z9KUttDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:03.888460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.06262","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1554dd5db861ee62449492c60943cbe6f644984a3d81c78aee19292e6de095c0","sha256:d06f196e1cd1b3537f3e6b02e11a04aee0148de4390befe8572cd18bf7c2dd4c"],"state_sha256":"ccddd944227a4899f1b1dfcb3bc01220b025a3ac42b58ad9fff5f8277bba4eb2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gmDwtQrPlqaW1g1BI03AFznpGM0ZZqsruaBw6yFK7ZTplyDE7MWBWOKUWlmwDH0xYW+cWsIPK5TW9GJoVFbnBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T15:39:53.703662Z","bundle_sha256":"3cc94ae32b23667687179fad73f96e07343b2659d0eb83ef0c5ad4b0a89c3be5"}}