{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:B3IXALFHCN3HQHKCO3T53ZUZMI","short_pith_number":"pith:B3IXALFH","canonical_record":{"source":{"id":"1610.07619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T20:00:05Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"54e59be81e7991a1afbf24db640f92c78f8ba717ec52a55780d310e55ef412a4","abstract_canon_sha256":"a56e43edd394e83d8cec6fee146033e22bef4ad1b7e0a2da70aa5ca19a67f243"},"schema_version":"1.0"},"canonical_sha256":"0ed1702ca71376781d4276e7dde699622a073f8fd90b720b8ad6b526aac1f73c","source":{"kind":"arxiv","id":"1610.07619","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07619","created_at":"2026-05-18T00:55:40Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07619v2","created_at":"2026-05-18T00:55:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07619","created_at":"2026-05-18T00:55:40Z"},{"alias_kind":"pith_short_12","alias_value":"B3IXALFHCN3H","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"B3IXALFHCN3HQHKC","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"B3IXALFH","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:B3IXALFHCN3HQHKCO3T53ZUZMI","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T20:00:05Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"54e59be81e7991a1afbf24db640f92c78f8ba717ec52a55780d310e55ef412a4","abstract_canon_sha256":"a56e43edd394e83d8cec6fee146033e22bef4ad1b7e0a2da70aa5ca19a67f243"},"schema_version":"1.0"},"canonical_sha256":"0ed1702ca71376781d4276e7dde699622a073f8fd90b720b8ad6b526aac1f73c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:40.545046Z","signature_b64":"M7A+75/m964Vu4McCdv0ezrEIUIqDOyj7gZJZlZZaZ2coaePpEOUttKfxiw8yE25xI0E5hmJ8glMac2ywmkWCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ed1702ca71376781d4276e7dde699622a073f8fd90b720b8ad6b526aac1f73c","last_reissued_at":"2026-05-18T00:55:40.544474Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:40.544474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07619","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":"2026-05-18T00:55:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sk3YlNIRs/BdsNmUTVYK36XdPXSY0a2sqNSgo98EtrXRBFjQbNoEsaeAr+oa6fXOuNxcimW9NH8nEwah9y+XBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:00:11.521677Z"},"content_sha256":"73120ea941a39e6986fc456fe391ae83d9f6991965589bbff271ad347a1a928c","schema_version":"1.0","event_id":"sha256:73120ea941a39e6986fc456fe391ae83d9f6991965589bbff271ad347a1a928c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:B3IXALFHCN3HQHKCO3T53ZUZMI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Does turbulence determine the initial mass function?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Daniel J. Price, David Liptai, James Wurster, Matthew R. Bate","submitted_at":"2016-10-24T20:00:05Z","abstract_excerpt":"We test the hypothesis that the initial mass function (IMF) is determined by the density probability distribution function (PDF) produced by supersonic turbulence. We compare 14 simulations of star cluster formation in 50 solar mass molecular cloud cores where the initial turbulence contains either purely solenoidal or purely compressive modes, in each case resolving fragmentation to the opacity limit to determine the resultant IMF. We find statistically indistinguishable IMFs between the two sets of calculations, despite a factor of two difference in the star formation rate and in the standar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07619","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":"2026-05-18T00:55:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lJ/9FQihc4N/FVo5SA2YqEmPJUxxGZ7IpL95/SMiW5OXkA0rlmY2KDKUkxRsaVAVVCDqvBpVSrGPG3DtY1RKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:00:11.522345Z"},"content_sha256":"0823fe91026a9240caba200214aa9c584e49c7d91235b5586c8bc975bb70b2c7","schema_version":"1.0","event_id":"sha256:0823fe91026a9240caba200214aa9c584e49c7d91235b5586c8bc975bb70b2c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B3IXALFHCN3HQHKCO3T53ZUZMI/bundle.json","state_url":"https://pith.science/pith/B3IXALFHCN3HQHKCO3T53ZUZMI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B3IXALFHCN3HQHKCO3T53ZUZMI/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":"2026-05-27T19:00:11Z","links":{"resolver":"https://pith.science/pith/B3IXALFHCN3HQHKCO3T53ZUZMI","bundle":"https://pith.science/pith/B3IXALFHCN3HQHKCO3T53ZUZMI/bundle.json","state":"https://pith.science/pith/B3IXALFHCN3HQHKCO3T53ZUZMI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B3IXALFHCN3HQHKCO3T53ZUZMI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:B3IXALFHCN3HQHKCO3T53ZUZMI","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":"a56e43edd394e83d8cec6fee146033e22bef4ad1b7e0a2da70aa5ca19a67f243","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T20:00:05Z","title_canon_sha256":"54e59be81e7991a1afbf24db640f92c78f8ba717ec52a55780d310e55ef412a4"},"schema_version":"1.0","source":{"id":"1610.07619","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07619","created_at":"2026-05-18T00:55:40Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07619v2","created_at":"2026-05-18T00:55:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07619","created_at":"2026-05-18T00:55:40Z"},{"alias_kind":"pith_short_12","alias_value":"B3IXALFHCN3H","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"B3IXALFHCN3HQHKC","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"B3IXALFH","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:0823fe91026a9240caba200214aa9c584e49c7d91235b5586c8bc975bb70b2c7","target":"graph","created_at":"2026-05-18T00:55:40Z","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 test the hypothesis that the initial mass function (IMF) is determined by the density probability distribution function (PDF) produced by supersonic turbulence. We compare 14 simulations of star cluster formation in 50 solar mass molecular cloud cores where the initial turbulence contains either purely solenoidal or purely compressive modes, in each case resolving fragmentation to the opacity limit to determine the resultant IMF. We find statistically indistinguishable IMFs between the two sets of calculations, despite a factor of two difference in the star formation rate and in the standar","authors_text":"Daniel J. Price, David Liptai, James Wurster, Matthew R. Bate","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T20:00:05Z","title":"Does turbulence determine the initial mass function?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07619","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":"sha256:73120ea941a39e6986fc456fe391ae83d9f6991965589bbff271ad347a1a928c","target":"record","created_at":"2026-05-18T00:55:40Z","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":"a56e43edd394e83d8cec6fee146033e22bef4ad1b7e0a2da70aa5ca19a67f243","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-24T20:00:05Z","title_canon_sha256":"54e59be81e7991a1afbf24db640f92c78f8ba717ec52a55780d310e55ef412a4"},"schema_version":"1.0","source":{"id":"1610.07619","kind":"arxiv","version":2}},"canonical_sha256":"0ed1702ca71376781d4276e7dde699622a073f8fd90b720b8ad6b526aac1f73c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ed1702ca71376781d4276e7dde699622a073f8fd90b720b8ad6b526aac1f73c","first_computed_at":"2026-05-18T00:55:40.544474Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:40.544474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M7A+75/m964Vu4McCdv0ezrEIUIqDOyj7gZJZlZZaZ2coaePpEOUttKfxiw8yE25xI0E5hmJ8glMac2ywmkWCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:40.545046Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07619","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73120ea941a39e6986fc456fe391ae83d9f6991965589bbff271ad347a1a928c","sha256:0823fe91026a9240caba200214aa9c584e49c7d91235b5586c8bc975bb70b2c7"],"state_sha256":"6c657a212462243309d496d129d65ae1c01cd77adaf3864738d01ec031b25988"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yw+dsQYAOvlqw2qo92ccHjiP4NHQGP2FOoO/KszHd60kcheGymUxcsErJc76ghpsmh+IzSU01wc/X83knjOTCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:00:11.525900Z","bundle_sha256":"9f83c49bcf44c2dcf2c2119f42a64984194083e33b6db81568e9a2f1898e174d"}}