{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:OPLR27PJUT637BS7NKXFJYKCOY","short_pith_number":"pith:OPLR27PJ","schema_version":"1.0","canonical_sha256":"73d71d7de9a4fdbf865f6aae54e1427636c58e50e5f8fb88d87cb7644a3dcdb5","source":{"kind":"arxiv","id":"1902.05149","version":1},"attestation_state":"computed","paper":{"title":"Seismic characterization of multiple fracture sets at Rulison Field, Colorado","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Ivan Vasconcelos, Vladimir Grechka","submitted_at":"2019-02-13T22:11:50Z","abstract_excerpt":"Conventional fracture-characterization methods assume the presence of a single set of aligned, vertical cracks in the subsurface. We relax this assumption and demonstrate the feasibility of seismic characterization of multiple fracture sets. Our technique relies on recent numerical findings, indicating that multiple, differently oriented, possibly intersecting planar cracks embedded in an otherwise isotropic host rock result in a nearly orthorhombic (or orthotropic) effective medium. Here, the governing parameters of crack-induced orthotropy are estimated from 3D, wide-azimuth, multicomponent "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1902.05149","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2019-02-13T22:11:50Z","cross_cats_sorted":[],"title_canon_sha256":"1975d8d8f0de630a7e756b7de29c3eab3ec9f2ff215136a92fce706d059928fe","abstract_canon_sha256":"5cb80b91e430658d04fd5722793cd1b7b536ca625ab5959587b189b37f6f14d0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:01.793419Z","signature_b64":"CMh3syo3/r0s/mkSv1bQxbemjsR54ZC9sDpukeoa5pt6e2MPptfWR99pEY6ikQ2Em07xAa/tRltNkBYP7Ng2CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"73d71d7de9a4fdbf865f6aae54e1427636c58e50e5f8fb88d87cb7644a3dcdb5","last_reissued_at":"2026-05-17T23:54:01.792724Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:01.792724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Seismic characterization of multiple fracture sets at Rulison Field, Colorado","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Ivan Vasconcelos, Vladimir Grechka","submitted_at":"2019-02-13T22:11:50Z","abstract_excerpt":"Conventional fracture-characterization methods assume the presence of a single set of aligned, vertical cracks in the subsurface. We relax this assumption and demonstrate the feasibility of seismic characterization of multiple fracture sets. Our technique relies on recent numerical findings, indicating that multiple, differently oriented, possibly intersecting planar cracks embedded in an otherwise isotropic host rock result in a nearly orthorhombic (or orthotropic) effective medium. Here, the governing parameters of crack-induced orthotropy are estimated from 3D, wide-azimuth, multicomponent "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05149","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1902.05149","created_at":"2026-05-17T23:54:01.792853+00:00"},{"alias_kind":"arxiv_version","alias_value":"1902.05149v1","created_at":"2026-05-17T23:54:01.792853+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.05149","created_at":"2026-05-17T23:54:01.792853+00:00"},{"alias_kind":"pith_short_12","alias_value":"OPLR27PJUT63","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"OPLR27PJUT637BS7","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"OPLR27PJ","created_at":"2026-05-18T12:33:24.271573+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY","json":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY.json","graph_json":"https://pith.science/api/pith-number/OPLR27PJUT637BS7NKXFJYKCOY/graph.json","events_json":"https://pith.science/api/pith-number/OPLR27PJUT637BS7NKXFJYKCOY/events.json","paper":"https://pith.science/paper/OPLR27PJ"},"agent_actions":{"view_html":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY","download_json":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY.json","view_paper":"https://pith.science/paper/OPLR27PJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1902.05149&json=true","fetch_graph":"https://pith.science/api/pith-number/OPLR27PJUT637BS7NKXFJYKCOY/graph.json","fetch_events":"https://pith.science/api/pith-number/OPLR27PJUT637BS7NKXFJYKCOY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY/action/storage_attestation","attest_author":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY/action/author_attestation","sign_citation":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY/action/citation_signature","submit_replication":"https://pith.science/pith/OPLR27PJUT637BS7NKXFJYKCOY/action/replication_record"}},"created_at":"2026-05-17T23:54:01.792853+00:00","updated_at":"2026-05-17T23:54:01.792853+00:00"}