{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:KJZ526JH2YG2IL5QFUGG7JLFU5","short_pith_number":"pith:KJZ526JH","canonical_record":{"source":{"id":"astro-ph/0701795","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-28T05:29:29Z","cross_cats_sorted":[],"title_canon_sha256":"d6418fad29a2262922290661f707b279d271b20f798c9ad6def18b82c6aa7090","abstract_canon_sha256":"ddaae431685942cff7dc0dfe79eb9ab000e8664070c1f64ee33e16c5bdb576ab"},"schema_version":"1.0"},"canonical_sha256":"5273dd7927d60da42fb02d0c6fa565a75c869b2634742afca99e2a379f98f2e7","source":{"kind":"arxiv","id":"astro-ph/0701795","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701795","created_at":"2026-05-18T04:29:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701795v2","created_at":"2026-05-18T04:29:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701795","created_at":"2026-05-18T04:29:06Z"},{"alias_kind":"pith_short_12","alias_value":"KJZ526JH2YG2","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"KJZ526JH2YG2IL5Q","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"KJZ526JH","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:KJZ526JH2YG2IL5QFUGG7JLFU5","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0701795","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-28T05:29:29Z","cross_cats_sorted":[],"title_canon_sha256":"d6418fad29a2262922290661f707b279d271b20f798c9ad6def18b82c6aa7090","abstract_canon_sha256":"ddaae431685942cff7dc0dfe79eb9ab000e8664070c1f64ee33e16c5bdb576ab"},"schema_version":"1.0"},"canonical_sha256":"5273dd7927d60da42fb02d0c6fa565a75c869b2634742afca99e2a379f98f2e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:06.848721Z","signature_b64":"l8RkmYOJ7v12ffccZMwnZAq30+oys+MHUDgVF4by2L0LOcxeMNp6yxZcnYy7YZBnzC7UexnxLFxkJ8Nj55CxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5273dd7927d60da42fb02d0c6fa565a75c869b2634742afca99e2a379f98f2e7","last_reissued_at":"2026-05-18T04:29:06.848222Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:06.848222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0701795","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":"2026-05-18T04:29:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BIp5n9+QgSSH5Dpkj6e2TrogusuilCe4k/ARZkY3HJoM9b1cNn4NYM/o+n+Yi9qvMS3c2ciDbWHIPLCv9GaTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T20:38:12.579066Z"},"content_sha256":"5535904f765ff0a3bd944503d2894c9e173d3b7271b878860c236c8165cdf409","schema_version":"1.0","event_id":"sha256:5535904f765ff0a3bd944503d2894c9e173d3b7271b878860c236c8165cdf409"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:KJZ526JH2YG2IL5QFUGG7JLFU5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two regimes of Turbulent Fragmentation and the stellar IMF from Primordial to Present Day Star Formation","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Aake Nordlund, Alexei G. Kritsuk, Michael L. Norman, Pak Shing Li, Paolo Padoan","submitted_at":"2007-01-28T05:29:29Z","abstract_excerpt":"The Padoan and Nordlund model of the stellar initial mass function (IMF) is derived from low order statistics of supersonic turbulence, neglecting gravity (e.g. gravitational fragmentation, accretion and merging). In this work the predictions of that model are tested using the largest numerical experiments of supersonic hydrodynamic (HD) and magneto-hydrodynamic (MHD) turbulence to date (~1000^3 computational zones) and three different codes (Enzo, Zeus and the Stagger Code). The model predicts a power law distribution for large masses, related to the turbulence energy power spectrum slope, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701795","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":"2026-05-18T04:29:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7qv5za0qdBbSGZ19eTxHZKHByXXFMHybvG877ItiQMgvfsdZkHJpADYPhdZyBnzjqn/RKsuDeZIVJRj5BPAnCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T20:38:12.579437Z"},"content_sha256":"cf991d4bae4e3e89a7a8270638b9744333e9c5fd7a43792367f4db27f50f1c6b","schema_version":"1.0","event_id":"sha256:cf991d4bae4e3e89a7a8270638b9744333e9c5fd7a43792367f4db27f50f1c6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KJZ526JH2YG2IL5QFUGG7JLFU5/bundle.json","state_url":"https://pith.science/pith/KJZ526JH2YG2IL5QFUGG7JLFU5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KJZ526JH2YG2IL5QFUGG7JLFU5/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":"2026-05-21T20:38:12Z","links":{"resolver":"https://pith.science/pith/KJZ526JH2YG2IL5QFUGG7JLFU5","bundle":"https://pith.science/pith/KJZ526JH2YG2IL5QFUGG7JLFU5/bundle.json","state":"https://pith.science/pith/KJZ526JH2YG2IL5QFUGG7JLFU5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KJZ526JH2YG2IL5QFUGG7JLFU5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:KJZ526JH2YG2IL5QFUGG7JLFU5","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":"ddaae431685942cff7dc0dfe79eb9ab000e8664070c1f64ee33e16c5bdb576ab","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-28T05:29:29Z","title_canon_sha256":"d6418fad29a2262922290661f707b279d271b20f798c9ad6def18b82c6aa7090"},"schema_version":"1.0","source":{"id":"astro-ph/0701795","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0701795","created_at":"2026-05-18T04:29:06Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701795v2","created_at":"2026-05-18T04:29:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701795","created_at":"2026-05-18T04:29:06Z"},{"alias_kind":"pith_short_12","alias_value":"KJZ526JH2YG2","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"KJZ526JH2YG2IL5Q","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"KJZ526JH","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:cf991d4bae4e3e89a7a8270638b9744333e9c5fd7a43792367f4db27f50f1c6b","target":"graph","created_at":"2026-05-18T04:29:06Z","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":"The Padoan and Nordlund model of the stellar initial mass function (IMF) is derived from low order statistics of supersonic turbulence, neglecting gravity (e.g. gravitational fragmentation, accretion and merging). In this work the predictions of that model are tested using the largest numerical experiments of supersonic hydrodynamic (HD) and magneto-hydrodynamic (MHD) turbulence to date (~1000^3 computational zones) and three different codes (Enzo, Zeus and the Stagger Code). The model predicts a power law distribution for large masses, related to the turbulence energy power spectrum slope, an","authors_text":"Aake Nordlund, Alexei G. Kritsuk, Michael L. Norman, Pak Shing Li, Paolo Padoan","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-01-28T05:29:29Z","title":"Two regimes of Turbulent Fragmentation and the stellar IMF from Primordial to Present Day Star Formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701795","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":"sha256:5535904f765ff0a3bd944503d2894c9e173d3b7271b878860c236c8165cdf409","target":"record","created_at":"2026-05-18T04:29:06Z","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":"ddaae431685942cff7dc0dfe79eb9ab000e8664070c1f64ee33e16c5bdb576ab","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-28T05:29:29Z","title_canon_sha256":"d6418fad29a2262922290661f707b279d271b20f798c9ad6def18b82c6aa7090"},"schema_version":"1.0","source":{"id":"astro-ph/0701795","kind":"arxiv","version":2}},"canonical_sha256":"5273dd7927d60da42fb02d0c6fa565a75c869b2634742afca99e2a379f98f2e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5273dd7927d60da42fb02d0c6fa565a75c869b2634742afca99e2a379f98f2e7","first_computed_at":"2026-05-18T04:29:06.848222Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:06.848222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l8RkmYOJ7v12ffccZMwnZAq30+oys+MHUDgVF4by2L0LOcxeMNp6yxZcnYy7YZBnzC7UexnxLFxkJ8Nj55CxAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:06.848721Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0701795","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5535904f765ff0a3bd944503d2894c9e173d3b7271b878860c236c8165cdf409","sha256:cf991d4bae4e3e89a7a8270638b9744333e9c5fd7a43792367f4db27f50f1c6b"],"state_sha256":"f24d8c8c811404ec7f037058efca04a2cad0f28555edba48d49abbaf6082743e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A8CGiE3uOh12E1o+ql8Z73pP2K5yx3MfwiwQlUeGaFX5dI9qtZ5bL8yLe/jmk6gCOlRMtPLwAAgjnZofkYVMDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T20:38:12.583515Z","bundle_sha256":"53961345633bbab09be273b04e8f9bf386e71533693c2eef566221cd1fdfa1e7"}}