{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:IWKRFS5SNZSHO3H766AXVSFCOQ","short_pith_number":"pith:IWKRFS5S","canonical_record":{"source":{"id":"1704.00900","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-04-04T07:27:21Z","cross_cats_sorted":[],"title_canon_sha256":"1d36450790fc695ab15c36179692a106dea82ac4d3bd96de61a42d8836b3187e","abstract_canon_sha256":"43458e92785f72e8c93818492ebf2236beb17d5cb97140ac59adc1c3647dd875"},"schema_version":"1.0"},"canonical_sha256":"459512cbb26e64776cfff7817ac8a274114fe97765f5715e6ebd82a672bf9ae2","source":{"kind":"arxiv","id":"1704.00900","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00900","created_at":"2026-05-18T00:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00900v1","created_at":"2026-05-18T00:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00900","created_at":"2026-05-18T00:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"IWKRFS5SNZSH","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IWKRFS5SNZSHO3H7","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IWKRFS5S","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:IWKRFS5SNZSHO3H766AXVSFCOQ","target":"record","payload":{"canonical_record":{"source":{"id":"1704.00900","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-04-04T07:27:21Z","cross_cats_sorted":[],"title_canon_sha256":"1d36450790fc695ab15c36179692a106dea82ac4d3bd96de61a42d8836b3187e","abstract_canon_sha256":"43458e92785f72e8c93818492ebf2236beb17d5cb97140ac59adc1c3647dd875"},"schema_version":"1.0"},"canonical_sha256":"459512cbb26e64776cfff7817ac8a274114fe97765f5715e6ebd82a672bf9ae2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:46.234371Z","signature_b64":"qhN5tVNr9iaXMqzHs/lkFX6otVx5r8sZUNRoGrd5tePCyq82cB5uDxvUGCaB4bQCehGBuMhZMPN6Ex2XD7blAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"459512cbb26e64776cfff7817ac8a274114fe97765f5715e6ebd82a672bf9ae2","last_reissued_at":"2026-05-18T00:29:46.233874Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:46.233874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.00900","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":"2026-05-18T00:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6xrl6lbd2R//nekZM04e4Kn6ia3rwvvVRBF7JBiTSWPGK210W6y69f3I1X92aaN0f5CSPLJBJoIkLRpApIZcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:18:26.504954Z"},"content_sha256":"ad0c95adf17148d172744eaa3bcd3bb660dcf791c9395abd95cda853520eff24","schema_version":"1.0","event_id":"sha256:ad0c95adf17148d172744eaa3bcd3bb660dcf791c9395abd95cda853520eff24"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:IWKRFS5SNZSHO3H766AXVSFCOQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Instabilities of jammed packings of frictionless spheres under compression","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Andrea J. Liu, Ning Xu, Sidney R. Nagel","submitted_at":"2017-04-04T07:27:21Z","abstract_excerpt":"We consider the contribution to the density of vibrational states and the distribution of energy barrier heights of incipient instabilities in a glass modeled by a jammed packing of spheres. On approaching an instability, the frequency of a normal mode and the height of the energy barrier to cross into a new ground state both vanish. These instabilities produce a contribution to the density of vibrational states that scales as $\\omega^3$ at low frequencies $\\omega$, but which vanishes in the thermodynamic limit. In addition, they affect an anharmonic property, the distribution of energy barrie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00900","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":"2026-05-18T00:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KzlROyYIOIViewJB+x58rC5eXlK/9uVC/8BamEHudmfHHkn6+AmsOAzNFggaB61X4Y6m6WiMDiHYYDNKIXluCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T19:18:26.505300Z"},"content_sha256":"372797baa0806d75553e00b7a4ccc02562a3421498b195eb18f654b7ae901313","schema_version":"1.0","event_id":"sha256:372797baa0806d75553e00b7a4ccc02562a3421498b195eb18f654b7ae901313"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IWKRFS5SNZSHO3H766AXVSFCOQ/bundle.json","state_url":"https://pith.science/pith/IWKRFS5SNZSHO3H766AXVSFCOQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IWKRFS5SNZSHO3H766AXVSFCOQ/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":"2026-06-04T19:18:26Z","links":{"resolver":"https://pith.science/pith/IWKRFS5SNZSHO3H766AXVSFCOQ","bundle":"https://pith.science/pith/IWKRFS5SNZSHO3H766AXVSFCOQ/bundle.json","state":"https://pith.science/pith/IWKRFS5SNZSHO3H766AXVSFCOQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IWKRFS5SNZSHO3H766AXVSFCOQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IWKRFS5SNZSHO3H766AXVSFCOQ","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":"43458e92785f72e8c93818492ebf2236beb17d5cb97140ac59adc1c3647dd875","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-04-04T07:27:21Z","title_canon_sha256":"1d36450790fc695ab15c36179692a106dea82ac4d3bd96de61a42d8836b3187e"},"schema_version":"1.0","source":{"id":"1704.00900","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00900","created_at":"2026-05-18T00:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00900v1","created_at":"2026-05-18T00:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00900","created_at":"2026-05-18T00:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"IWKRFS5SNZSH","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IWKRFS5SNZSHO3H7","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IWKRFS5S","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:372797baa0806d75553e00b7a4ccc02562a3421498b195eb18f654b7ae901313","target":"graph","created_at":"2026-05-18T00:29:46Z","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":"We consider the contribution to the density of vibrational states and the distribution of energy barrier heights of incipient instabilities in a glass modeled by a jammed packing of spheres. On approaching an instability, the frequency of a normal mode and the height of the energy barrier to cross into a new ground state both vanish. These instabilities produce a contribution to the density of vibrational states that scales as $\\omega^3$ at low frequencies $\\omega$, but which vanishes in the thermodynamic limit. In addition, they affect an anharmonic property, the distribution of energy barrie","authors_text":"Andrea J. Liu, Ning Xu, Sidney R. Nagel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-04-04T07:27:21Z","title":"Instabilities of jammed packings of frictionless spheres under compression"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00900","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:ad0c95adf17148d172744eaa3bcd3bb660dcf791c9395abd95cda853520eff24","target":"record","created_at":"2026-05-18T00:29:46Z","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":"43458e92785f72e8c93818492ebf2236beb17d5cb97140ac59adc1c3647dd875","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-04-04T07:27:21Z","title_canon_sha256":"1d36450790fc695ab15c36179692a106dea82ac4d3bd96de61a42d8836b3187e"},"schema_version":"1.0","source":{"id":"1704.00900","kind":"arxiv","version":1}},"canonical_sha256":"459512cbb26e64776cfff7817ac8a274114fe97765f5715e6ebd82a672bf9ae2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"459512cbb26e64776cfff7817ac8a274114fe97765f5715e6ebd82a672bf9ae2","first_computed_at":"2026-05-18T00:29:46.233874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:46.233874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qhN5tVNr9iaXMqzHs/lkFX6otVx5r8sZUNRoGrd5tePCyq82cB5uDxvUGCaB4bQCehGBuMhZMPN6Ex2XD7blAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:46.234371Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.00900","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad0c95adf17148d172744eaa3bcd3bb660dcf791c9395abd95cda853520eff24","sha256:372797baa0806d75553e00b7a4ccc02562a3421498b195eb18f654b7ae901313"],"state_sha256":"636c2ad65e8bc78978aee847cbbd06ff8130b405b16873b6cc1b9877e6592ba8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qt/QXOPZLORq00yZe+SLuTJK4pzV6j9ohYencISKsGBXnoU6xUB/OyB79HSbOio6GVRwfNYATxS8jq3+Gx/SBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T19:18:26.507236Z","bundle_sha256":"57a8ed1d2a459483e99dad0fd4a929114520009693e1f597fc6696e6bb2f2a3c"}}