{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:HDQHU5EOJULZYQI72VMQVL26A4","short_pith_number":"pith:HDQHU5EO","canonical_record":{"source":{"id":"astro-ph/0411626","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-11-23T03:43:30Z","cross_cats_sorted":[],"title_canon_sha256":"1bb898c0f83a2a9dba9b371b5ec4c4048a66f3e29699aab2ac01c8283dfadf47","abstract_canon_sha256":"024905ed90fe8c9aeb2b060c2b6cb86ddc1070ca614a9d8959bbc60172180d4d"},"schema_version":"1.0"},"canonical_sha256":"38e07a748e4d179c411fd5590aaf5e072f2413e2ad9201814cef2dfd48dac151","source":{"kind":"arxiv","id":"astro-ph/0411626","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0411626","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0411626v2","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0411626","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"pith_short_12","alias_value":"HDQHU5EOJULZ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"HDQHU5EOJULZYQI7","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"HDQHU5EO","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:HDQHU5EOJULZYQI72VMQVL26A4","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0411626","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-11-23T03:43:30Z","cross_cats_sorted":[],"title_canon_sha256":"1bb898c0f83a2a9dba9b371b5ec4c4048a66f3e29699aab2ac01c8283dfadf47","abstract_canon_sha256":"024905ed90fe8c9aeb2b060c2b6cb86ddc1070ca614a9d8959bbc60172180d4d"},"schema_version":"1.0"},"canonical_sha256":"38e07a748e4d179c411fd5590aaf5e072f2413e2ad9201814cef2dfd48dac151","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:31.868358Z","signature_b64":"9hKQcyNdMQs/uJbJr77c1MAQgsCT6hvT+AVJm/BocTzp+xEsvgAo/mVNFOPZ7pn81E/pcZAnMW7Ui23LznQXAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38e07a748e4d179c411fd5590aaf5e072f2413e2ad9201814cef2dfd48dac151","last_reissued_at":"2026-05-18T01:07:31.867656Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:31.867656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0411626","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":"2026-05-18T01:07:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wtbvko13SJJgjr339yKlSDY1k1EcGc7xwaz/yvZfuF6jCu52QKAuvbmE55FfruNpF5jF51mifcGUzJF5wenOBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:06:40.881433Z"},"content_sha256":"583f5cb02941f9b32085838db7af48232116e954f7b3929e4437727f85ca9edf","schema_version":"1.0","event_id":"sha256:583f5cb02941f9b32085838db7af48232116e954f7b3929e4437727f85ca9edf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:HDQHU5EOJULZYQI72VMQVL26A4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive Mesh Refinement for Supersonic Molecular Cloud Turbulence","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alexei G. Kritsuk, Michael L. Norman, Paolo Padoan (U.C. San Diego)","submitted_at":"2004-11-23T03:43:30Z","abstract_excerpt":"We performed a series of three-dimensional numerical simulations of supersonic homogeneous Euler turbulence with adaptive mesh refinement (AMR) and effective grid resolution up to 1024^3 zones. Our experiments describe non-magnetized driven supersonic turbulent flows with an isothermal equation of state. Mesh refinement on shocks and shear is implemented to cover dynamically important structures with the highest resolution subgrids and calibrated to match the turbulence statistics obtained from the equivalent uniform grid simulations.\n  We found that at a level of resolution slightly below 512"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0411626","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":"2026-05-18T01:07:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D3FkaNyvmV8ixhPF9qR+mywC8zsp1VJ1qJNcg2AwX3WadZOhAZZoaawJhQRs/WVwAM/bNLDudew3kPtNo3rDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T22:06:40.882073Z"},"content_sha256":"f0a31193373519b64a72a625273b265e1b287194e85dc6e1b750d941dedb40a8","schema_version":"1.0","event_id":"sha256:f0a31193373519b64a72a625273b265e1b287194e85dc6e1b750d941dedb40a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HDQHU5EOJULZYQI72VMQVL26A4/bundle.json","state_url":"https://pith.science/pith/HDQHU5EOJULZYQI72VMQVL26A4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HDQHU5EOJULZYQI72VMQVL26A4/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":"2026-05-28T22:06:40Z","links":{"resolver":"https://pith.science/pith/HDQHU5EOJULZYQI72VMQVL26A4","bundle":"https://pith.science/pith/HDQHU5EOJULZYQI72VMQVL26A4/bundle.json","state":"https://pith.science/pith/HDQHU5EOJULZYQI72VMQVL26A4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HDQHU5EOJULZYQI72VMQVL26A4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:HDQHU5EOJULZYQI72VMQVL26A4","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":"024905ed90fe8c9aeb2b060c2b6cb86ddc1070ca614a9d8959bbc60172180d4d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-11-23T03:43:30Z","title_canon_sha256":"1bb898c0f83a2a9dba9b371b5ec4c4048a66f3e29699aab2ac01c8283dfadf47"},"schema_version":"1.0","source":{"id":"astro-ph/0411626","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0411626","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0411626v2","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0411626","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"pith_short_12","alias_value":"HDQHU5EOJULZ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"HDQHU5EOJULZYQI7","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"HDQHU5EO","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:f0a31193373519b64a72a625273b265e1b287194e85dc6e1b750d941dedb40a8","target":"graph","created_at":"2026-05-18T01:07:31Z","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 performed a series of three-dimensional numerical simulations of supersonic homogeneous Euler turbulence with adaptive mesh refinement (AMR) and effective grid resolution up to 1024^3 zones. Our experiments describe non-magnetized driven supersonic turbulent flows with an isothermal equation of state. Mesh refinement on shocks and shear is implemented to cover dynamically important structures with the highest resolution subgrids and calibrated to match the turbulence statistics obtained from the equivalent uniform grid simulations.\n  We found that at a level of resolution slightly below 512","authors_text":"Alexei G. Kritsuk, Michael L. Norman, Paolo Padoan (U.C. San Diego)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-11-23T03:43:30Z","title":"Adaptive Mesh Refinement for Supersonic Molecular Cloud Turbulence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0411626","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":"sha256:583f5cb02941f9b32085838db7af48232116e954f7b3929e4437727f85ca9edf","target":"record","created_at":"2026-05-18T01:07:31Z","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":"024905ed90fe8c9aeb2b060c2b6cb86ddc1070ca614a9d8959bbc60172180d4d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-11-23T03:43:30Z","title_canon_sha256":"1bb898c0f83a2a9dba9b371b5ec4c4048a66f3e29699aab2ac01c8283dfadf47"},"schema_version":"1.0","source":{"id":"astro-ph/0411626","kind":"arxiv","version":2}},"canonical_sha256":"38e07a748e4d179c411fd5590aaf5e072f2413e2ad9201814cef2dfd48dac151","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38e07a748e4d179c411fd5590aaf5e072f2413e2ad9201814cef2dfd48dac151","first_computed_at":"2026-05-18T01:07:31.867656Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:31.867656Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9hKQcyNdMQs/uJbJr77c1MAQgsCT6hvT+AVJm/BocTzp+xEsvgAo/mVNFOPZ7pn81E/pcZAnMW7Ui23LznQXAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:31.868358Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0411626","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:583f5cb02941f9b32085838db7af48232116e954f7b3929e4437727f85ca9edf","sha256:f0a31193373519b64a72a625273b265e1b287194e85dc6e1b750d941dedb40a8"],"state_sha256":"e1b75625f459fea4c0587cf6f3eb7860945ceca062326870523b04cd57af7e60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qi8cRO7RrkZiT2q3zT5c4qEkUzHWw8G07WdTAz3qOAAC7DFoQw6lzNknLmB0d9jAs6clsEW+AlENlrMwyMXwBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T22:06:40.885829Z","bundle_sha256":"6393d3cf2722523e4b9a86ba56b947a2b6f82f284ed01afe2314b75a3c873973"}}