{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:5YPNGJWEXM4AH664XUBHIZT2XW","short_pith_number":"pith:5YPNGJWE","canonical_record":{"source":{"id":"1709.01078","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-04T18:00:01Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ac5723d8071f5618fc43215d766764d7eb5b8f3a2429ca3d3a163628b39dfd2e","abstract_canon_sha256":"d7d105cecfe159ba4341d3f2cfb5ebaeae0f4696defec05d329088d55a192056"},"schema_version":"1.0"},"canonical_sha256":"ee1ed326c4bb3803fbdcbd0274667abd9a58fb9e55911ec5f2e728ae36f50408","source":{"kind":"arxiv","id":"1709.01078","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01078","created_at":"2026-05-18T00:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01078v2","created_at":"2026-05-18T00:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01078","created_at":"2026-05-18T00:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"5YPNGJWEXM4A","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"5YPNGJWEXM4AH664","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"5YPNGJWE","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:5YPNGJWEXM4AH664XUBHIZT2XW","target":"record","payload":{"canonical_record":{"source":{"id":"1709.01078","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-04T18:00:01Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ac5723d8071f5618fc43215d766764d7eb5b8f3a2429ca3d3a163628b39dfd2e","abstract_canon_sha256":"d7d105cecfe159ba4341d3f2cfb5ebaeae0f4696defec05d329088d55a192056"},"schema_version":"1.0"},"canonical_sha256":"ee1ed326c4bb3803fbdcbd0274667abd9a58fb9e55911ec5f2e728ae36f50408","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:58.818817Z","signature_b64":"pajqvuQG7ReMRB/RPaGZfhjBCwo1xvO/FOQfNhZO/LlYJIruTwBLMX6iM+DU6ko2HXjVLkQ8+9ZyDzwq8vpJAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee1ed326c4bb3803fbdcbd0274667abd9a58fb9e55911ec5f2e728ae36f50408","last_reissued_at":"2026-05-18T00:22:58.818302Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:58.818302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.01078","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":"2026-05-18T00:22:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YnZ+GhJjXQdZSBf+NS7KzEaKNBb9LrzBgMXHLgky09apAmDsmkPYVF1PVLOcdg3AzhYXUSv2lwhUR8YgX6GTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T21:34:39.644761Z"},"content_sha256":"0cfa7859dad9c0a27ab9229fa6de8e71302f4ab0e5cbc01d3a683cd3ec19f490","schema_version":"1.0","event_id":"sha256:0cfa7859dad9c0a27ab9229fa6de8e71302f4ab0e5cbc01d3a683cd3ec19f490"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:5YPNGJWEXM4AH664XUBHIZT2XW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The stellar IMF from Isothermal MHD Turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Aake Nordlund, Paolo Padoan, Troels Haugb{\\o}lle","submitted_at":"2017-09-04T18:00:01Z","abstract_excerpt":"We address the turbulent fragmentation scenario for the origin of the stellar initial mass function (IMF), using a large set of numerical simulations of randomly driven supersonic MHD turbulence. The turbulent fragmentation model successfully predicts the main features of the observed stellar IMF assuming an isothermal equation of state without any stellar feedback. As a test of the model, we focus on the case of a magnetized isothermal gas, neglecting stellar feedback, while pursuing a large dynamic range in both space and timescales covering the full spectrum of stellar masses from brown dwa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01078","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":"2026-05-18T00:22:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2ilt4cnk4By1gPa0+W+SwaLEBAfOYSACctgCTpuLtw2QzrDtzuERAKFmZwrP0U5T6az2EXZ+N0aBMUyvo1RaAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T21:34:39.645513Z"},"content_sha256":"7965d168d9a069cb4daf455a3affc8a3b956891781fdecf54b63baa724161db5","schema_version":"1.0","event_id":"sha256:7965d168d9a069cb4daf455a3affc8a3b956891781fdecf54b63baa724161db5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5YPNGJWEXM4AH664XUBHIZT2XW/bundle.json","state_url":"https://pith.science/pith/5YPNGJWEXM4AH664XUBHIZT2XW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5YPNGJWEXM4AH664XUBHIZT2XW/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":"2026-06-07T21:34:39Z","links":{"resolver":"https://pith.science/pith/5YPNGJWEXM4AH664XUBHIZT2XW","bundle":"https://pith.science/pith/5YPNGJWEXM4AH664XUBHIZT2XW/bundle.json","state":"https://pith.science/pith/5YPNGJWEXM4AH664XUBHIZT2XW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5YPNGJWEXM4AH664XUBHIZT2XW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:5YPNGJWEXM4AH664XUBHIZT2XW","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":"d7d105cecfe159ba4341d3f2cfb5ebaeae0f4696defec05d329088d55a192056","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-04T18:00:01Z","title_canon_sha256":"ac5723d8071f5618fc43215d766764d7eb5b8f3a2429ca3d3a163628b39dfd2e"},"schema_version":"1.0","source":{"id":"1709.01078","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01078","created_at":"2026-05-18T00:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01078v2","created_at":"2026-05-18T00:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01078","created_at":"2026-05-18T00:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"5YPNGJWEXM4A","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"5YPNGJWEXM4AH664","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"5YPNGJWE","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:7965d168d9a069cb4daf455a3affc8a3b956891781fdecf54b63baa724161db5","target":"graph","created_at":"2026-05-18T00:22:58Z","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 address the turbulent fragmentation scenario for the origin of the stellar initial mass function (IMF), using a large set of numerical simulations of randomly driven supersonic MHD turbulence. The turbulent fragmentation model successfully predicts the main features of the observed stellar IMF assuming an isothermal equation of state without any stellar feedback. As a test of the model, we focus on the case of a magnetized isothermal gas, neglecting stellar feedback, while pursuing a large dynamic range in both space and timescales covering the full spectrum of stellar masses from brown dwa","authors_text":"Aake Nordlund, Paolo Padoan, Troels Haugb{\\o}lle","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-04T18:00:01Z","title":"The stellar IMF from Isothermal MHD Turbulence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01078","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":"sha256:0cfa7859dad9c0a27ab9229fa6de8e71302f4ab0e5cbc01d3a683cd3ec19f490","target":"record","created_at":"2026-05-18T00:22:58Z","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":"d7d105cecfe159ba4341d3f2cfb5ebaeae0f4696defec05d329088d55a192056","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-04T18:00:01Z","title_canon_sha256":"ac5723d8071f5618fc43215d766764d7eb5b8f3a2429ca3d3a163628b39dfd2e"},"schema_version":"1.0","source":{"id":"1709.01078","kind":"arxiv","version":2}},"canonical_sha256":"ee1ed326c4bb3803fbdcbd0274667abd9a58fb9e55911ec5f2e728ae36f50408","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee1ed326c4bb3803fbdcbd0274667abd9a58fb9e55911ec5f2e728ae36f50408","first_computed_at":"2026-05-18T00:22:58.818302Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:58.818302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pajqvuQG7ReMRB/RPaGZfhjBCwo1xvO/FOQfNhZO/LlYJIruTwBLMX6iM+DU6ko2HXjVLkQ8+9ZyDzwq8vpJAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:58.818817Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.01078","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0cfa7859dad9c0a27ab9229fa6de8e71302f4ab0e5cbc01d3a683cd3ec19f490","sha256:7965d168d9a069cb4daf455a3affc8a3b956891781fdecf54b63baa724161db5"],"state_sha256":"2443cdb440511fc551a53c01eac84abac31e4af9095a6dabd92edf167125a8a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+MxyVBV3wg2HgC0DGBisvPGvaNewn4xMOHVJOmEy7au1eDtKTeFZCBM/8yAgJjq4THFQylS06jWM8DSvGATRBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T21:34:39.649200Z","bundle_sha256":"4a06b1573b072ae3175bc695cb928a75b1ab65b9c62e60c55e139f54dfd911bb"}}