{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:AWPETIQ7XXV3CGAYSIVU6TVJF2","short_pith_number":"pith:AWPETIQ7","canonical_record":{"source":{"id":"1410.5483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-10-20T22:02:49Z","cross_cats_sorted":[],"title_canon_sha256":"faf95c2ae3344db6d159c885697c37cb997c2e993b16e50c0172dba20073032f","abstract_canon_sha256":"9f18da07d591439b84ca89c1f4a7d5051f4c22023fabea16d290e5fd441baa46"},"schema_version":"1.0"},"canonical_sha256":"059e49a21fbdebb11818922b4f4ea92ebdf7e8ffe2a505d8c925a67d3466c81e","source":{"kind":"arxiv","id":"1410.5483","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5483","created_at":"2026-05-18T02:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5483v1","created_at":"2026-05-18T02:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5483","created_at":"2026-05-18T02:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"AWPETIQ7XXV3","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AWPETIQ7XXV3CGAY","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AWPETIQ7","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:AWPETIQ7XXV3CGAYSIVU6TVJF2","target":"record","payload":{"canonical_record":{"source":{"id":"1410.5483","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-10-20T22:02:49Z","cross_cats_sorted":[],"title_canon_sha256":"faf95c2ae3344db6d159c885697c37cb997c2e993b16e50c0172dba20073032f","abstract_canon_sha256":"9f18da07d591439b84ca89c1f4a7d5051f4c22023fabea16d290e5fd441baa46"},"schema_version":"1.0"},"canonical_sha256":"059e49a21fbdebb11818922b4f4ea92ebdf7e8ffe2a505d8c925a67d3466c81e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:39.752353Z","signature_b64":"wsQcycrDYAialbCum6kRJJAm62JH9nPQ+Zb7ynZgjFXJCFU6OVz/QDHJhjf5/sUshpoqdn7b971+5U8BSs0sDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"059e49a21fbdebb11818922b4f4ea92ebdf7e8ffe2a505d8c925a67d3466c81e","last_reissued_at":"2026-05-18T02:39:39.751708Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:39.751708Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.5483","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":"2026-05-18T02:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CugHOryV4pY1GZ26zN2ZbaAvwEEdrp0e40+cjfZhSAXZGkj+uqg0Iev+NWnXP/JdFCnfm0xeXi51hV6AGzQbDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:46:41.316903Z"},"content_sha256":"a9afdeb46863ac25fa6e7aee53b77d69f82901891279df99f09a02b4a4850cf0","schema_version":"1.0","event_id":"sha256:a9afdeb46863ac25fa6e7aee53b77d69f82901891279df99f09a02b4a4850cf0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:AWPETIQ7XXV3CGAYSIVU6TVJF2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stress-dependent normal mode frequencies from the effective mass of granular matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"David L. Johnson, Francisco Santibanez, Hern\\'an A. Makse, John J. Valenza, Yanqing Hu","submitted_at":"2014-10-20T22:02:49Z","abstract_excerpt":"A zero-temperature critical point has been invoked to control the anomalous behavior of granular matter as it approaches jamming or mechanical arrest. Criticality manifests itself in an anomalous spectrum of low-frequency normal modes and scaling behavior near the jamming transition. The critical point may explain the peculiar mechanical properties of dissimilar systems such as glasses and granular materials. Here, we study the critical scenario via an experimental measurement of the normal modes frequencies of granular matter under stress from a pole decomposition analysis of the effective ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5483","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":"2026-05-18T02:39:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+NmZVVQZznSqZM4IKpuassWcATVYG4gYtLTtEy3T5isxz8uqExFfW4vKdwjFXfCVEYVKO0zD2gaxmdxfkW14Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:46:41.317610Z"},"content_sha256":"86477cf8933059a4d6b8bdb0d56225ca9921a2b46084e95a44088107d86f34b7","schema_version":"1.0","event_id":"sha256:86477cf8933059a4d6b8bdb0d56225ca9921a2b46084e95a44088107d86f34b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2/bundle.json","state_url":"https://pith.science/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2/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":"2026-05-25T13:46:41Z","links":{"resolver":"https://pith.science/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2","bundle":"https://pith.science/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2/bundle.json","state":"https://pith.science/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AWPETIQ7XXV3CGAYSIVU6TVJF2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AWPETIQ7XXV3CGAYSIVU6TVJF2","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":"9f18da07d591439b84ca89c1f4a7d5051f4c22023fabea16d290e5fd441baa46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-10-20T22:02:49Z","title_canon_sha256":"faf95c2ae3344db6d159c885697c37cb997c2e993b16e50c0172dba20073032f"},"schema_version":"1.0","source":{"id":"1410.5483","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.5483","created_at":"2026-05-18T02:39:39Z"},{"alias_kind":"arxiv_version","alias_value":"1410.5483v1","created_at":"2026-05-18T02:39:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.5483","created_at":"2026-05-18T02:39:39Z"},{"alias_kind":"pith_short_12","alias_value":"AWPETIQ7XXV3","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AWPETIQ7XXV3CGAY","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AWPETIQ7","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:86477cf8933059a4d6b8bdb0d56225ca9921a2b46084e95a44088107d86f34b7","target":"graph","created_at":"2026-05-18T02:39:39Z","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":"A zero-temperature critical point has been invoked to control the anomalous behavior of granular matter as it approaches jamming or mechanical arrest. Criticality manifests itself in an anomalous spectrum of low-frequency normal modes and scaling behavior near the jamming transition. The critical point may explain the peculiar mechanical properties of dissimilar systems such as glasses and granular materials. Here, we study the critical scenario via an experimental measurement of the normal modes frequencies of granular matter under stress from a pole decomposition analysis of the effective ma","authors_text":"David L. Johnson, Francisco Santibanez, Hern\\'an A. Makse, John J. Valenza, Yanqing Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-10-20T22:02:49Z","title":"Stress-dependent normal mode frequencies from the effective mass of granular matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.5483","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:a9afdeb46863ac25fa6e7aee53b77d69f82901891279df99f09a02b4a4850cf0","target":"record","created_at":"2026-05-18T02:39:39Z","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":"9f18da07d591439b84ca89c1f4a7d5051f4c22023fabea16d290e5fd441baa46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-10-20T22:02:49Z","title_canon_sha256":"faf95c2ae3344db6d159c885697c37cb997c2e993b16e50c0172dba20073032f"},"schema_version":"1.0","source":{"id":"1410.5483","kind":"arxiv","version":1}},"canonical_sha256":"059e49a21fbdebb11818922b4f4ea92ebdf7e8ffe2a505d8c925a67d3466c81e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"059e49a21fbdebb11818922b4f4ea92ebdf7e8ffe2a505d8c925a67d3466c81e","first_computed_at":"2026-05-18T02:39:39.751708Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:39.751708Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wsQcycrDYAialbCum6kRJJAm62JH9nPQ+Zb7ynZgjFXJCFU6OVz/QDHJhjf5/sUshpoqdn7b971+5U8BSs0sDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:39.752353Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.5483","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9afdeb46863ac25fa6e7aee53b77d69f82901891279df99f09a02b4a4850cf0","sha256:86477cf8933059a4d6b8bdb0d56225ca9921a2b46084e95a44088107d86f34b7"],"state_sha256":"237e17b3c1a5a67299d785d670d40cbea019cfbf570015b14f8ea92ebaf04a84"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EHX057z518G1kvf+UjPc4wPVJpb/k1kQug7gzMAJCKcZbABX8vALMFWyo8FVWYzDJL2WYjfjUqycRDWUl74dAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T13:46:41.321395Z","bundle_sha256":"abfb0c0e73297b7602724d58c13707b57c3bf8a95183e21d5385ff505e10612e"}}