{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:AFI6R6DF22SMZHKDZLVNKSUOOV","short_pith_number":"pith:AFI6R6DF","canonical_record":{"source":{"id":"1405.1253","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-05-06T13:06:24Z","cross_cats_sorted":[],"title_canon_sha256":"30f1b4b54a02105a96b5fd1538bb30f8923c865d6384f377384944452b4e0928","abstract_canon_sha256":"6001b01308fa64a5b1660913abe469e849978543a5c0c5ac3bec53629cb6108e"},"schema_version":"1.0"},"canonical_sha256":"0151e8f865d6a4cc9d43caead54a8e754e7abc06cf043cf1e433a2c865582779","source":{"kind":"arxiv","id":"1405.1253","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.1253","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"arxiv_version","alias_value":"1405.1253v2","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.1253","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"pith_short_12","alias_value":"AFI6R6DF22SM","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AFI6R6DF22SMZHKD","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AFI6R6DF","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:AFI6R6DF22SMZHKDZLVNKSUOOV","target":"record","payload":{"canonical_record":{"source":{"id":"1405.1253","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-05-06T13:06:24Z","cross_cats_sorted":[],"title_canon_sha256":"30f1b4b54a02105a96b5fd1538bb30f8923c865d6384f377384944452b4e0928","abstract_canon_sha256":"6001b01308fa64a5b1660913abe469e849978543a5c0c5ac3bec53629cb6108e"},"schema_version":"1.0"},"canonical_sha256":"0151e8f865d6a4cc9d43caead54a8e754e7abc06cf043cf1e433a2c865582779","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:17.277642Z","signature_b64":"S2sVbCOpLya7eVpXjiPLn6vDVrh9xKxYhZw2HoU6rSYs0Cf2FwytZpK3o4tI2ofUca2LGNQqqrrYD9MimWvSCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0151e8f865d6a4cc9d43caead54a8e754e7abc06cf043cf1e433a2c865582779","last_reissued_at":"2026-05-18T01:43:17.276965Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:17.276965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.1253","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:43:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PZHUSHtKIFhOWA0YAWUCu4kKCsx7tWUSGIkyMc48EKJ1GPSVq+giBTGboBJrYrajekV7ZnATOMvg9KxxUyJLCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T06:11:26.795948Z"},"content_sha256":"35a77cb4c19a3ab3437fefdca6d3c324b6e1fd85126dfee5b4b9b4fff40b27f3","schema_version":"1.0","event_id":"sha256:35a77cb4c19a3ab3437fefdca6d3c324b6e1fd85126dfee5b4b9b4fff40b27f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:AFI6R6DF22SMZHKDZLVNKSUOOV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolution of a double-front Rayleigh-Taylor system using a GPU-based high resolution thermal Lattice-Boltzmann model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"L. Biferale, P. Ripesi, R. Tripiccione, S.F. Schifano","submitted_at":"2014-05-06T13:06:24Z","abstract_excerpt":"We study the turbulent evolution originated from a system subjected to a Rayleigh-Taylor instability with a double density at high resolution in a 2 dimensional geometry using a highly optimized thermal Lattice Boltzmann code for GPUs. The novelty of our investigation stems from the initial condition, given by the superposition of three layers with three different densities, leading to the development of two Rayleigh-Taylor fronts that expand upward and downward and collide in the middle of the cell. By using high resolution numerical data we highlight the effects induced by the collision of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1253","kind":"arxiv","version":2},"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":"2026-05-18T01:43:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9dpiGL57OuDvbQLD4ElYQIbj7jAwGKhD/Wz2Q22rZ09hsLnCgC7XKBZZcg/oRzhOeO1v1lUTx82yzNsiXncRDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T06:11:26.796710Z"},"content_sha256":"a32d6aa150e7055e973249d7cc51eb0a2fa3c4def59e71c7aaeb5ce825fdf53a","schema_version":"1.0","event_id":"sha256:a32d6aa150e7055e973249d7cc51eb0a2fa3c4def59e71c7aaeb5ce825fdf53a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AFI6R6DF22SMZHKDZLVNKSUOOV/bundle.json","state_url":"https://pith.science/pith/AFI6R6DF22SMZHKDZLVNKSUOOV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AFI6R6DF22SMZHKDZLVNKSUOOV/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":"2026-06-28T06:11:26Z","links":{"resolver":"https://pith.science/pith/AFI6R6DF22SMZHKDZLVNKSUOOV","bundle":"https://pith.science/pith/AFI6R6DF22SMZHKDZLVNKSUOOV/bundle.json","state":"https://pith.science/pith/AFI6R6DF22SMZHKDZLVNKSUOOV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AFI6R6DF22SMZHKDZLVNKSUOOV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AFI6R6DF22SMZHKDZLVNKSUOOV","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":"6001b01308fa64a5b1660913abe469e849978543a5c0c5ac3bec53629cb6108e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-05-06T13:06:24Z","title_canon_sha256":"30f1b4b54a02105a96b5fd1538bb30f8923c865d6384f377384944452b4e0928"},"schema_version":"1.0","source":{"id":"1405.1253","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.1253","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"arxiv_version","alias_value":"1405.1253v2","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.1253","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"pith_short_12","alias_value":"AFI6R6DF22SM","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AFI6R6DF22SMZHKD","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AFI6R6DF","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:a32d6aa150e7055e973249d7cc51eb0a2fa3c4def59e71c7aaeb5ce825fdf53a","target":"graph","created_at":"2026-05-18T01:43:17Z","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 the turbulent evolution originated from a system subjected to a Rayleigh-Taylor instability with a double density at high resolution in a 2 dimensional geometry using a highly optimized thermal Lattice Boltzmann code for GPUs. The novelty of our investigation stems from the initial condition, given by the superposition of three layers with three different densities, leading to the development of two Rayleigh-Taylor fronts that expand upward and downward and collide in the middle of the cell. By using high resolution numerical data we highlight the effects induced by the collision of t","authors_text":"L. Biferale, P. Ripesi, R. Tripiccione, S.F. Schifano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-05-06T13:06:24Z","title":"Evolution of a double-front Rayleigh-Taylor system using a GPU-based high resolution thermal Lattice-Boltzmann model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1253","kind":"arxiv","version":2},"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":"sha256:35a77cb4c19a3ab3437fefdca6d3c324b6e1fd85126dfee5b4b9b4fff40b27f3","target":"record","created_at":"2026-05-18T01:43:17Z","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":"6001b01308fa64a5b1660913abe469e849978543a5c0c5ac3bec53629cb6108e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2014-05-06T13:06:24Z","title_canon_sha256":"30f1b4b54a02105a96b5fd1538bb30f8923c865d6384f377384944452b4e0928"},"schema_version":"1.0","source":{"id":"1405.1253","kind":"arxiv","version":2}},"canonical_sha256":"0151e8f865d6a4cc9d43caead54a8e754e7abc06cf043cf1e433a2c865582779","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0151e8f865d6a4cc9d43caead54a8e754e7abc06cf043cf1e433a2c865582779","first_computed_at":"2026-05-18T01:43:17.276965Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:17.276965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S2sVbCOpLya7eVpXjiPLn6vDVrh9xKxYhZw2HoU6rSYs0Cf2FwytZpK3o4tI2ofUca2LGNQqqrrYD9MimWvSCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:17.277642Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.1253","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35a77cb4c19a3ab3437fefdca6d3c324b6e1fd85126dfee5b4b9b4fff40b27f3","sha256:a32d6aa150e7055e973249d7cc51eb0a2fa3c4def59e71c7aaeb5ce825fdf53a"],"state_sha256":"2f6031066517c57ac25b0170bc2084c79dc1b733a0acf654439cbb37d8aeb9e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z7xZjx+GjKlqrHFzNma2i4+pqM6D+VCrMLjQwja/6Xqo7677O1mjHRzkL1xg6rXVP8HM/5+83kVfIQ21ONzbAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T06:11:26.798874Z","bundle_sha256":"a80c14f02a911cd1bd879de4fc793818a2685a56403c9f1fb1f9aeeb02e70ed0"}}