{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:4XSFIGBVCARCKB5HVW3BE5OEC3","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":"0de4547df4be2531d04606d3e88c97768c6948e18c553036e0e5fd1f38224ecd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-12-07T14:52:58Z","title_canon_sha256":"37b8a4b456cfc62c1d081fcb38439e75c5c3ec81e8dc72c028c28a6c658078ef"},"schema_version":"1.0","source":{"id":"1512.02554","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.02554","created_at":"2026-05-18T01:24:44Z"},{"alias_kind":"arxiv_version","alias_value":"1512.02554v1","created_at":"2026-05-18T01:24:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.02554","created_at":"2026-05-18T01:24:44Z"},{"alias_kind":"pith_short_12","alias_value":"4XSFIGBVCARC","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"4XSFIGBVCARCKB5H","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"4XSFIGBV","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:d0a32cc8ba94ff02ad3e10bffc766f0aac0f6d77225ae10530cf5834043c905e","target":"graph","created_at":"2026-05-18T01:24:44Z","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 study experimentally fast flames and their transition to detonation in mixtures of methane, ethane, ethylene, acetylene, and propane mixtures with oxygen. Following the interaction of a detonation wave with a column of cylinders of varying blockage ratio, the experiments demonstrate that the fast flames established are Chapman-Jouguet deflagrations, in excellent agreement with the self-similar model of Radulescu et al. (2015). The experiments indicate that these Chapman-Jouguet deflagrations dynamically restructure and amplify into fewer stronger modes until the eventual transition to deton","authors_text":"Andrzej Pekalski, Marc Levin, Matei I. Radulescu, Mohamed Saif, Wentian Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-12-07T14:52:58Z","title":"Chapman-Jouguet deflagrations and their transition to detonation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.02554","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":"sha256:29174ce211ba7f2dd13217bda9354da9c5c7d861fd6cdf7aca30b131c6bc13f0","target":"record","created_at":"2026-05-18T01:24:44Z","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":"0de4547df4be2531d04606d3e88c97768c6948e18c553036e0e5fd1f38224ecd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-12-07T14:52:58Z","title_canon_sha256":"37b8a4b456cfc62c1d081fcb38439e75c5c3ec81e8dc72c028c28a6c658078ef"},"schema_version":"1.0","source":{"id":"1512.02554","kind":"arxiv","version":1}},"canonical_sha256":"e5e454183510222507a7adb61275c416d083396c2074860eac0d76f9145536af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5e454183510222507a7adb61275c416d083396c2074860eac0d76f9145536af","first_computed_at":"2026-05-18T01:24:44.442591Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:44.442591Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CVL6PnWlLwB/DzF3URbMmInxNEMj23w6y18KFNCyi6g86ZQGitOUN69WnnN95NWpls6v3gflGS6MIC3kvfp3AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:44.443077Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.02554","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:29174ce211ba7f2dd13217bda9354da9c5c7d861fd6cdf7aca30b131c6bc13f0","sha256:d0a32cc8ba94ff02ad3e10bffc766f0aac0f6d77225ae10530cf5834043c905e"],"state_sha256":"fc611c8ebd748929120bd0d9f58e9d43c379abd56dfd7e99c318c132d7f92128"}