{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LED2IEKVV4HLW24GJMP4HAGYO5","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":"c4f3a6c45d479a3670112d9a473c29db1f6ac6b8b0eda1558c68f97d7e824ea7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-12-09T23:54:29Z","title_canon_sha256":"b357e7d9584c7ede7b91022dc4a7838d112ce46fd5bc56221e46e236a625a10a"},"schema_version":"1.0","source":{"id":"1612.03221","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03221","created_at":"2026-05-18T00:55:19Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03221v1","created_at":"2026-05-18T00:55:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03221","created_at":"2026-05-18T00:55:19Z"},{"alias_kind":"pith_short_12","alias_value":"LED2IEKVV4HL","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LED2IEKVV4HLW24G","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LED2IEKV","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:e06d3dc03a5f88d4c5d9e86db1165f2b6507e0bd28a0130abce3491196c10cdb","target":"graph","created_at":"2026-05-18T00:55:19Z","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":"This paper discusses a continuum approach to track the evolution of permeability in granular rocks by accounting for the combined effect of porosity changes, grain breakage and cement bond damage. To account for such a broad range of microscopic processes under general loading paths, the Breakage Mechanics theory is used and the computed mechanical response is linked with the Kozeny equation, i.e. a permeability model able to evaluate the reduction of the hydraulic conductivity resulting from the simultaneous loss of porosity and growth of surface area. In particular, the evolution of the inte","authors_text":"Arghya Das, Giuseppe Buscarnera, Shiva Esna Ashari","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-12-09T23:54:29Z","title":"Continuum modeling of the effect of surface area growth due to crushing and damage on the permeability of granular rocks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03221","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:eb3c0ac093d855346911e19bd7b820e99f7d3acac560175b45b7aa23b28b2ebd","target":"record","created_at":"2026-05-18T00:55:19Z","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":"c4f3a6c45d479a3670112d9a473c29db1f6ac6b8b0eda1558c68f97d7e824ea7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2016-12-09T23:54:29Z","title_canon_sha256":"b357e7d9584c7ede7b91022dc4a7838d112ce46fd5bc56221e46e236a625a10a"},"schema_version":"1.0","source":{"id":"1612.03221","kind":"arxiv","version":1}},"canonical_sha256":"5907a41155af0ebb6b864b1fc380d87742199acf9b89a8f1e651d24386fa905c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5907a41155af0ebb6b864b1fc380d87742199acf9b89a8f1e651d24386fa905c","first_computed_at":"2026-05-18T00:55:19.914383Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:19.914383Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Hzxm62rKef9WK+U4G5WKUO/Xoc7X34GlV7MYSlJbsuCNbtZGCGDAVZ1EMhCusE3Nf7RD1IHo7jJuqdaLSOu/CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:19.915050Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.03221","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eb3c0ac093d855346911e19bd7b820e99f7d3acac560175b45b7aa23b28b2ebd","sha256:e06d3dc03a5f88d4c5d9e86db1165f2b6507e0bd28a0130abce3491196c10cdb"],"state_sha256":"43b0386669da8a118cad5542fa3dd4aeb81889b2b9f4d691264a70ddb239055f"}