{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:CBQTGJJVT7VHLVCKGU4LKEAZQM","short_pith_number":"pith:CBQTGJJV","canonical_record":{"source":{"id":"cond-mat/0303037","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-03-03T16:46:40Z","cross_cats_sorted":[],"title_canon_sha256":"58d2580886e8f5630ca4624e2faef6de5188c4288f8da87c4eea0353e93a23e0","abstract_canon_sha256":"2f257db1dc09f615005594115bc85b64c47521bc246f7d699f99e48c2d4ecfc6"},"schema_version":"1.0"},"canonical_sha256":"10613325359fea75d44a3538b51019833632db41bdd6ff1a7963a13ec8384b2b","source":{"kind":"arxiv","id":"cond-mat/0303037","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0303037","created_at":"2026-05-18T01:40:01Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0303037v1","created_at":"2026-05-18T01:40:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0303037","created_at":"2026-05-18T01:40:01Z"},{"alias_kind":"pith_short_12","alias_value":"CBQTGJJVT7VH","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"CBQTGJJVT7VHLVCK","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"CBQTGJJV","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:CBQTGJJVT7VHLVCKGU4LKEAZQM","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0303037","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-03-03T16:46:40Z","cross_cats_sorted":[],"title_canon_sha256":"58d2580886e8f5630ca4624e2faef6de5188c4288f8da87c4eea0353e93a23e0","abstract_canon_sha256":"2f257db1dc09f615005594115bc85b64c47521bc246f7d699f99e48c2d4ecfc6"},"schema_version":"1.0"},"canonical_sha256":"10613325359fea75d44a3538b51019833632db41bdd6ff1a7963a13ec8384b2b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:01.843267Z","signature_b64":"6v9Evs9mHdD9pu3Ssms3snZUps2dO1PrHtYBDvLAd0mea+2GxeUViPhegpZ2xmEOISF8/c93xgQpmrVbGOyfAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"10613325359fea75d44a3538b51019833632db41bdd6ff1a7963a13ec8384b2b","last_reissued_at":"2026-05-18T01:40:01.842608Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:01.842608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0303037","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":"2026-05-18T01:40:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mhVXB7Mer/W0AmhdFwjZ0uBwBHoATnUdj+pSroCMzzeqDa/ci/4jAGm8vBnpa+LkXgkZADbZDu/WME/DrScGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:43:13.752172Z"},"content_sha256":"087c4d1aeab2d5eece58b99cb9a50885d5e638dc309221a4dc7913f207f9700a","schema_version":"1.0","event_id":"sha256:087c4d1aeab2d5eece58b99cb9a50885d5e638dc309221a4dc7913f207f9700a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:CBQTGJJVT7VHLVCKGU4LKEAZQM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kinetics of Fragmenting Freely Evolving Granular Gases","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Emmanuel Trizac, Ignacio Pagonabarraga","submitted_at":"2003-03-03T16:46:40Z","abstract_excerpt":"We investigate the effect of fragmentation on the homogeneous free cooling of inelastic hard spheres, using Boltzmann kinetic theory and Direct Monte Carlo simulations. We analyze in detail a model where dissipative collisions may subsequently lead to a break-up of the grains. With a given probability, two off-springs are then created from one of the two colliding partners, with conservation of mass, momentum and kinetic energy. We observe a scaling regime characterized by a single collisional average, that quantifies the deviations from Gaussian behaviour for the joint size and velocity distr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0303037","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":"2026-05-18T01:40:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ts6XHJR/YLrP6N6awJrkXAkGdXjUryorXp9reSClJOj/tj/WXdGRKBjAWJ/iZZc3Yjza/tri0EOVoCE/mKRbDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:43:13.752526Z"},"content_sha256":"7cc9a7cde9bd3e0e787830cc0fee5dbd0c3962220c5fb78bc685c7a2b87eb6b2","schema_version":"1.0","event_id":"sha256:7cc9a7cde9bd3e0e787830cc0fee5dbd0c3962220c5fb78bc685c7a2b87eb6b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM/bundle.json","state_url":"https://pith.science/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM/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":"2026-06-02T15:43:13Z","links":{"resolver":"https://pith.science/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM","bundle":"https://pith.science/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM/bundle.json","state":"https://pith.science/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CBQTGJJVT7VHLVCKGU4LKEAZQM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:CBQTGJJVT7VHLVCKGU4LKEAZQM","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":"2f257db1dc09f615005594115bc85b64c47521bc246f7d699f99e48c2d4ecfc6","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-03-03T16:46:40Z","title_canon_sha256":"58d2580886e8f5630ca4624e2faef6de5188c4288f8da87c4eea0353e93a23e0"},"schema_version":"1.0","source":{"id":"cond-mat/0303037","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0303037","created_at":"2026-05-18T01:40:01Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0303037v1","created_at":"2026-05-18T01:40:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0303037","created_at":"2026-05-18T01:40:01Z"},{"alias_kind":"pith_short_12","alias_value":"CBQTGJJVT7VH","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"CBQTGJJVT7VHLVCK","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"CBQTGJJV","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:7cc9a7cde9bd3e0e787830cc0fee5dbd0c3962220c5fb78bc685c7a2b87eb6b2","target":"graph","created_at":"2026-05-18T01:40:01Z","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 investigate the effect of fragmentation on the homogeneous free cooling of inelastic hard spheres, using Boltzmann kinetic theory and Direct Monte Carlo simulations. We analyze in detail a model where dissipative collisions may subsequently lead to a break-up of the grains. With a given probability, two off-springs are then created from one of the two colliding partners, with conservation of mass, momentum and kinetic energy. We observe a scaling regime characterized by a single collisional average, that quantifies the deviations from Gaussian behaviour for the joint size and velocity distr","authors_text":"Emmanuel Trizac, Ignacio Pagonabarraga","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-03-03T16:46:40Z","title":"Kinetics of Fragmenting Freely Evolving Granular Gases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0303037","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":"sha256:087c4d1aeab2d5eece58b99cb9a50885d5e638dc309221a4dc7913f207f9700a","target":"record","created_at":"2026-05-18T01:40:01Z","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":"2f257db1dc09f615005594115bc85b64c47521bc246f7d699f99e48c2d4ecfc6","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.stat-mech","submitted_at":"2003-03-03T16:46:40Z","title_canon_sha256":"58d2580886e8f5630ca4624e2faef6de5188c4288f8da87c4eea0353e93a23e0"},"schema_version":"1.0","source":{"id":"cond-mat/0303037","kind":"arxiv","version":1}},"canonical_sha256":"10613325359fea75d44a3538b51019833632db41bdd6ff1a7963a13ec8384b2b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"10613325359fea75d44a3538b51019833632db41bdd6ff1a7963a13ec8384b2b","first_computed_at":"2026-05-18T01:40:01.842608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:01.842608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6v9Evs9mHdD9pu3Ssms3snZUps2dO1PrHtYBDvLAd0mea+2GxeUViPhegpZ2xmEOISF8/c93xgQpmrVbGOyfAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:01.843267Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0303037","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:087c4d1aeab2d5eece58b99cb9a50885d5e638dc309221a4dc7913f207f9700a","sha256:7cc9a7cde9bd3e0e787830cc0fee5dbd0c3962220c5fb78bc685c7a2b87eb6b2"],"state_sha256":"7342cb05dae4f90094748594b651b235c1e1181726a7e6e42d585c1cddf6a6a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W2tfrR/a+Pq+IKq60GeP5suKzl1ZL9QWHebUHqmLBmD5m1eeFbywh6VfGXkak1ZusiSof+rBKlIrpkCyPZomCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:43:13.754429Z","bundle_sha256":"2226ef9882391c009d3f9687f38d880db098b71cb28e76a89d5df54129c5df51"}}