{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:3HWDPMXTNP35NCDH3SPDDAS2MN","short_pith_number":"pith:3HWDPMXT","schema_version":"1.0","canonical_sha256":"d9ec37b2f36bf7d68867dc9e31825a636ad085ce8f5e148fe058645dff986374","source":{"kind":"arxiv","id":"2308.01876","version":2},"attestation_state":"computed","paper":{"title":"Subsurface pulse, crater and ejecta asymmetry from oblique impacts into granular media","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","cond-mat.soft","physics.geo-ph"],"primary_cat":"astro-ph.EP","authors_text":"Abobakar Sediq Miakhel, A. C. Quillen, Bingcheng Suo, Esteban Wright, Hesam Askari, J\\'er\\'emy Couturier, Jiaxin Wang, Luke O'Brient, Max Neiderbach, Nathan Skerrett, Paul S\\'anchez, Victor Lherm","submitted_at":"2023-08-03T17:06:18Z","abstract_excerpt":"We carry out experiments of 104 m/s velocity oblique impacts into a granular medium (sand). Impact craters have nearly round rims even at a grazing angle of about $10^\\circ$, however, the strength of seismic pulses excited by the impact is dependent upon impact angle, and the ratio between uprange and downrange velocity peaks can be as large as 5, particularly at shallow depths. Crater slope, an offset between crater center and impact site, crater volume, azimuthal variation in ejection angle, seismic pulse shapes and subsurface flow direction are also sensitive to impact angle, but to a much "},"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":"2308.01876","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-08-03T17:06:18Z","cross_cats_sorted":["astro-ph.IM","cond-mat.soft","physics.geo-ph"],"title_canon_sha256":"5102bcb5259f3d01e5f979928c91fef2f0a55b1c56db945b354df7590c91ac91","abstract_canon_sha256":"a6ccf8677ad58498d401a4d128d2640ad7d9b3c798639851f873fd0f4b22991c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:57:09.673299Z","signature_b64":"a/FTitKKZVi9s4+6jBABP3nIMzTIspeBz+k0cTCLHQvUy+BFXedVXO3x+I+dJy0chu0AnMZyqQq7VGrcPbRaAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9ec37b2f36bf7d68867dc9e31825a636ad085ce8f5e148fe058645dff986374","last_reissued_at":"2026-07-05T06:57:09.672836Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:57:09.672836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Subsurface pulse, crater and ejecta asymmetry from oblique impacts into granular media","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","cond-mat.soft","physics.geo-ph"],"primary_cat":"astro-ph.EP","authors_text":"Abobakar Sediq Miakhel, A. C. Quillen, Bingcheng Suo, Esteban Wright, Hesam Askari, J\\'er\\'emy Couturier, Jiaxin Wang, Luke O'Brient, Max Neiderbach, Nathan Skerrett, Paul S\\'anchez, Victor Lherm","submitted_at":"2023-08-03T17:06:18Z","abstract_excerpt":"We carry out experiments of 104 m/s velocity oblique impacts into a granular medium (sand). Impact craters have nearly round rims even at a grazing angle of about $10^\\circ$, however, the strength of seismic pulses excited by the impact is dependent upon impact angle, and the ratio between uprange and downrange velocity peaks can be as large as 5, particularly at shallow depths. Crater slope, an offset between crater center and impact site, crater volume, azimuthal variation in ejection angle, seismic pulse shapes and subsurface flow direction are also sensitive to impact angle, but to a much "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.01876","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2308.01876/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2308.01876","created_at":"2026-07-05T06:57:09.672904+00:00"},{"alias_kind":"arxiv_version","alias_value":"2308.01876v2","created_at":"2026-07-05T06:57:09.672904+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.01876","created_at":"2026-07-05T06:57:09.672904+00:00"},{"alias_kind":"pith_short_12","alias_value":"3HWDPMXTNP35","created_at":"2026-07-05T06:57:09.672904+00:00"},{"alias_kind":"pith_short_16","alias_value":"3HWDPMXTNP35NCDH","created_at":"2026-07-05T06:57:09.672904+00:00"},{"alias_kind":"pith_short_8","alias_value":"3HWDPMXT","created_at":"2026-07-05T06:57:09.672904+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/3HWDPMXTNP35NCDH3SPDDAS2MN","json":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN.json","graph_json":"https://pith.science/api/pith-number/3HWDPMXTNP35NCDH3SPDDAS2MN/graph.json","events_json":"https://pith.science/api/pith-number/3HWDPMXTNP35NCDH3SPDDAS2MN/events.json","paper":"https://pith.science/paper/3HWDPMXT"},"agent_actions":{"view_html":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN","download_json":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN.json","view_paper":"https://pith.science/paper/3HWDPMXT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2308.01876&json=true","fetch_graph":"https://pith.science/api/pith-number/3HWDPMXTNP35NCDH3SPDDAS2MN/graph.json","fetch_events":"https://pith.science/api/pith-number/3HWDPMXTNP35NCDH3SPDDAS2MN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN/action/storage_attestation","attest_author":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN/action/author_attestation","sign_citation":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN/action/citation_signature","submit_replication":"https://pith.science/pith/3HWDPMXTNP35NCDH3SPDDAS2MN/action/replication_record"}},"created_at":"2026-07-05T06:57:09.672904+00:00","updated_at":"2026-07-05T06:57:09.672904+00:00"}