{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:JQAFHZJOGIH2WXFPWMAYBTINVE","short_pith_number":"pith:JQAFHZJO","canonical_record":{"source":{"id":"1202.2594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-13T01:02:14Z","cross_cats_sorted":[],"title_canon_sha256":"830e99535db4098dc78c1b70e73bfb01d2d505c830ad76cb2cbbd1e3b1dd47e9","abstract_canon_sha256":"c110b203fc5cd67c4f880af2ac8f07a32adc12b80b08214b9af2dec549ed607f"},"schema_version":"1.0"},"canonical_sha256":"4c0053e52e320fab5cafb30180cd0da91fe5852fcc6aee95f590551e82a93b4a","source":{"kind":"arxiv","id":"1202.2594","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2594","created_at":"2026-05-18T01:58:30Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2594v1","created_at":"2026-05-18T01:58:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2594","created_at":"2026-05-18T01:58:30Z"},{"alias_kind":"pith_short_12","alias_value":"JQAFHZJOGIH2","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JQAFHZJOGIH2WXFP","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JQAFHZJO","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:JQAFHZJOGIH2WXFPWMAYBTINVE","target":"record","payload":{"canonical_record":{"source":{"id":"1202.2594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-13T01:02:14Z","cross_cats_sorted":[],"title_canon_sha256":"830e99535db4098dc78c1b70e73bfb01d2d505c830ad76cb2cbbd1e3b1dd47e9","abstract_canon_sha256":"c110b203fc5cd67c4f880af2ac8f07a32adc12b80b08214b9af2dec549ed607f"},"schema_version":"1.0"},"canonical_sha256":"4c0053e52e320fab5cafb30180cd0da91fe5852fcc6aee95f590551e82a93b4a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:30.838256Z","signature_b64":"iYwJIEmksbbNBxHBf4b+vRvqvVKHyji5OGqKqq2DbD57Z3VJtbGv/+qmL2pvvkNcWqpYQyXPAmnoK0EoO29oBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c0053e52e320fab5cafb30180cd0da91fe5852fcc6aee95f590551e82a93b4a","last_reissued_at":"2026-05-18T01:58:30.837851Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:30.837851Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.2594","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":"2026-05-18T01:58:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vD2T0w8zcNXbVVAgq1qzm6tKkmxJrFADrrBduhL+24CulS3I1WydBYf1LQAu7SWHqqNxZLPBr1x1Z5ZckQWKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T14:22:17.267688Z"},"content_sha256":"ffc389ffd17da6a0fe012e96ed94607782f1df190e4f09afcd642a75c656ca7d","schema_version":"1.0","event_id":"sha256:ffc389ffd17da6a0fe012e96ed94607782f1df190e4f09afcd642a75c656ca7d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:JQAFHZJOGIH2WXFPWMAYBTINVE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Two States of Star Forming Clouds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Alexei G. Kritsuk, David Collins, Hao Xu, Hui Li, Michael L. Norman, Paolo Padoan, Sergey D. Ustyugov","submitted_at":"2012-02-13T01:02:14Z","abstract_excerpt":"We examine the effects of self-gravity and magnetic fields on supersonic turbulence in isothermal molecular clouds with high resolution simulations and adaptive mesh refinement. These simulations use large root grids (512^3) to capture turbulence and four levels of refinement to capture high density, for an effective resolution of 8,196^3. Three Mach 9 simulations are performed, two super-Alfv\\'enic and one trans-Alfv\\'enic. We find that gravity splits the clouds into two populations, one low density turbulent state and one high density collapsing state. The low density state exhibits properti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2594","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":"2026-05-18T01:58:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gYn0vGSNXqqsNRyJoG8L42hPi4hBc9bm/KVU63fww1U19+enkkybTwjW9eRBhD+Ex1F7nDswUcMp8YW4tS1yBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T14:22:17.268031Z"},"content_sha256":"b50970ca221ae19889e9348ca50f7c00b9e6d127bc1f13cbda74b697212418af","schema_version":"1.0","event_id":"sha256:b50970ca221ae19889e9348ca50f7c00b9e6d127bc1f13cbda74b697212418af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JQAFHZJOGIH2WXFPWMAYBTINVE/bundle.json","state_url":"https://pith.science/pith/JQAFHZJOGIH2WXFPWMAYBTINVE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JQAFHZJOGIH2WXFPWMAYBTINVE/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":"2026-06-04T14:22:17Z","links":{"resolver":"https://pith.science/pith/JQAFHZJOGIH2WXFPWMAYBTINVE","bundle":"https://pith.science/pith/JQAFHZJOGIH2WXFPWMAYBTINVE/bundle.json","state":"https://pith.science/pith/JQAFHZJOGIH2WXFPWMAYBTINVE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JQAFHZJOGIH2WXFPWMAYBTINVE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:JQAFHZJOGIH2WXFPWMAYBTINVE","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":"c110b203fc5cd67c4f880af2ac8f07a32adc12b80b08214b9af2dec549ed607f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-13T01:02:14Z","title_canon_sha256":"830e99535db4098dc78c1b70e73bfb01d2d505c830ad76cb2cbbd1e3b1dd47e9"},"schema_version":"1.0","source":{"id":"1202.2594","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2594","created_at":"2026-05-18T01:58:30Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2594v1","created_at":"2026-05-18T01:58:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2594","created_at":"2026-05-18T01:58:30Z"},{"alias_kind":"pith_short_12","alias_value":"JQAFHZJOGIH2","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JQAFHZJOGIH2WXFP","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JQAFHZJO","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:b50970ca221ae19889e9348ca50f7c00b9e6d127bc1f13cbda74b697212418af","target":"graph","created_at":"2026-05-18T01:58:30Z","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 examine the effects of self-gravity and magnetic fields on supersonic turbulence in isothermal molecular clouds with high resolution simulations and adaptive mesh refinement. These simulations use large root grids (512^3) to capture turbulence and four levels of refinement to capture high density, for an effective resolution of 8,196^3. Three Mach 9 simulations are performed, two super-Alfv\\'enic and one trans-Alfv\\'enic. We find that gravity splits the clouds into two populations, one low density turbulent state and one high density collapsing state. The low density state exhibits properti","authors_text":"Alexei G. Kritsuk, David Collins, Hao Xu, Hui Li, Michael L. Norman, Paolo Padoan, Sergey D. Ustyugov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-13T01:02:14Z","title":"The Two States of Star Forming Clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2594","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:ffc389ffd17da6a0fe012e96ed94607782f1df190e4f09afcd642a75c656ca7d","target":"record","created_at":"2026-05-18T01:58:30Z","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":"c110b203fc5cd67c4f880af2ac8f07a32adc12b80b08214b9af2dec549ed607f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-02-13T01:02:14Z","title_canon_sha256":"830e99535db4098dc78c1b70e73bfb01d2d505c830ad76cb2cbbd1e3b1dd47e9"},"schema_version":"1.0","source":{"id":"1202.2594","kind":"arxiv","version":1}},"canonical_sha256":"4c0053e52e320fab5cafb30180cd0da91fe5852fcc6aee95f590551e82a93b4a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c0053e52e320fab5cafb30180cd0da91fe5852fcc6aee95f590551e82a93b4a","first_computed_at":"2026-05-18T01:58:30.837851Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:30.837851Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iYwJIEmksbbNBxHBf4b+vRvqvVKHyji5OGqKqq2DbD57Z3VJtbGv/+qmL2pvvkNcWqpYQyXPAmnoK0EoO29oBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:30.838256Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2594","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffc389ffd17da6a0fe012e96ed94607782f1df190e4f09afcd642a75c656ca7d","sha256:b50970ca221ae19889e9348ca50f7c00b9e6d127bc1f13cbda74b697212418af"],"state_sha256":"9d08de1cb01c4a2ae97e3f02a38f946702710353a0e1a51783dac94047723d3f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9JpFXxEohX06fc4mqGLD9NVj907g2e6jSQEwt+UaThJQrmeLf4yPOB2hL/yHLOG2eo4SKgNhXPfHroQYF9sXDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T14:22:17.269989Z","bundle_sha256":"7e5116e9d55a92d7e2091865987d8f61d7ac24540573b6e3828250dfca250ccb"}}