{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:Y2IIP5VFVLZYADMQNGIN5WEP2E","short_pith_number":"pith:Y2IIP5VF","schema_version":"1.0","canonical_sha256":"c69087f6a5aaf3800d906990ded88fd139e4d3dc91200e66fe7d4f60a64d1b56","source":{"kind":"arxiv","id":"1511.04133","version":1},"attestation_state":"computed","paper":{"title":"Mechanical impulse propagation in a packing of 3D spheres confined at constant pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Francisco Melo, Francisco Santibanez, Rene Zu\\~niga","submitted_at":"2015-11-13T01:10:00Z","abstract_excerpt":"Mechanical impulse propagation in granular media depends strongly on the imposed confinement conditions. In this work, the propagation of sound in a granular packing contained by flexible walls that enable confinement under hydrostatic pressure conditions is investigated. This configuration also allows the form of the input impulse to be controlled by means of an instrumented impact pendulum. The main characteristics of mechan- ical wave propagation are analyzed, and it is found that the wave speed as function of the wave amplitude of the propagating pulse obeys the predictions of the Hertz co"},"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":"1511.04133","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-11-13T01:10:00Z","cross_cats_sorted":[],"title_canon_sha256":"47d146d032e12893d9dd61b9d9c37f60d3886daa5ea76b506353ee77ab0559f6","abstract_canon_sha256":"d887ad7248a78beb2d7aa0f04c0fbe60480f44b530dd2e51003f3dc12e50d97b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:41.834392Z","signature_b64":"OF/lMw6Fw9BymWs3M9l/LwzDYhmbepPx+tU9It0Xxga/K2NOMJVoWvtTCWzAmEa/GfsXF0H7oDysUh6jaWNuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c69087f6a5aaf3800d906990ded88fd139e4d3dc91200e66fe7d4f60a64d1b56","last_reissued_at":"2026-05-18T01:20:41.833764Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:41.833764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mechanical impulse propagation in a packing of 3D spheres confined at constant pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Francisco Melo, Francisco Santibanez, Rene Zu\\~niga","submitted_at":"2015-11-13T01:10:00Z","abstract_excerpt":"Mechanical impulse propagation in granular media depends strongly on the imposed confinement conditions. In this work, the propagation of sound in a granular packing contained by flexible walls that enable confinement under hydrostatic pressure conditions is investigated. This configuration also allows the form of the input impulse to be controlled by means of an instrumented impact pendulum. The main characteristics of mechan- ical wave propagation are analyzed, and it is found that the wave speed as function of the wave amplitude of the propagating pulse obeys the predictions of the Hertz co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04133","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":"1511.04133","created_at":"2026-05-18T01:20:41.833859+00:00"},{"alias_kind":"arxiv_version","alias_value":"1511.04133v1","created_at":"2026-05-18T01:20:41.833859+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04133","created_at":"2026-05-18T01:20:41.833859+00:00"},{"alias_kind":"pith_short_12","alias_value":"Y2IIP5VFVLZY","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_16","alias_value":"Y2IIP5VFVLZYADMQ","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_8","alias_value":"Y2IIP5VF","created_at":"2026-05-18T12:29:50.041715+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/Y2IIP5VFVLZYADMQNGIN5WEP2E","json":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E.json","graph_json":"https://pith.science/api/pith-number/Y2IIP5VFVLZYADMQNGIN5WEP2E/graph.json","events_json":"https://pith.science/api/pith-number/Y2IIP5VFVLZYADMQNGIN5WEP2E/events.json","paper":"https://pith.science/paper/Y2IIP5VF"},"agent_actions":{"view_html":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E","download_json":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E.json","view_paper":"https://pith.science/paper/Y2IIP5VF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1511.04133&json=true","fetch_graph":"https://pith.science/api/pith-number/Y2IIP5VFVLZYADMQNGIN5WEP2E/graph.json","fetch_events":"https://pith.science/api/pith-number/Y2IIP5VFVLZYADMQNGIN5WEP2E/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E/action/storage_attestation","attest_author":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E/action/author_attestation","sign_citation":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E/action/citation_signature","submit_replication":"https://pith.science/pith/Y2IIP5VFVLZYADMQNGIN5WEP2E/action/replication_record"}},"created_at":"2026-05-18T01:20:41.833859+00:00","updated_at":"2026-05-18T01:20:41.833859+00:00"}