{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:6QPMWONXNRMDLE2475RTIUVNTJ","short_pith_number":"pith:6QPMWONX","canonical_record":{"source":{"id":"1111.5440","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-23T09:47:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"61add40e2ffb1d4f19ab9ecedbf006d2b580e7134fb64a9577b3a53859c97a3d","abstract_canon_sha256":"0dd3b1c1b38c512ef04d6c7a66c9f9cf4ca28d91602ebb827feade54c5b3f262"},"schema_version":"1.0"},"canonical_sha256":"f41ecb39b76c5835935cff633452ad9a7fc5556aae7c1aeadaa93baa42e73100","source":{"kind":"arxiv","id":"1111.5440","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.5440","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"arxiv_version","alias_value":"1111.5440v1","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.5440","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"pith_short_12","alias_value":"6QPMWONXNRMD","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"6QPMWONXNRMDLE24","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"6QPMWONX","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:6QPMWONXNRMDLE2475RTIUVNTJ","target":"record","payload":{"canonical_record":{"source":{"id":"1111.5440","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-23T09:47:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"61add40e2ffb1d4f19ab9ecedbf006d2b580e7134fb64a9577b3a53859c97a3d","abstract_canon_sha256":"0dd3b1c1b38c512ef04d6c7a66c9f9cf4ca28d91602ebb827feade54c5b3f262"},"schema_version":"1.0"},"canonical_sha256":"f41ecb39b76c5835935cff633452ad9a7fc5556aae7c1aeadaa93baa42e73100","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:26.434845Z","signature_b64":"fVLf+gLUYhIGcVOu5dZ+J217QK8be1nJ2dPTwTjArImlbb3oWdVWE6lIKDdZMpQaKCLCjr/FVxVapFYrmYmMBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f41ecb39b76c5835935cff633452ad9a7fc5556aae7c1aeadaa93baa42e73100","last_reissued_at":"2026-05-18T01:59:26.434205Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:26.434205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.5440","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":"2026-05-18T01:59:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v4hH9bOXi77/oIU4iay+hhfTh420y+WU5fV5bcsdZm4OOcciWd4ApX2wH4Urun3BPZ67Ov+Bq3A0I93X7b0tAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:55:29.677160Z"},"content_sha256":"8ba1a17ff498e5f9861992c1738d42525003e66911862b3b0e2eb7014e062e07","schema_version":"1.0","event_id":"sha256:8ba1a17ff498e5f9861992c1738d42525003e66911862b3b0e2eb7014e062e07"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:6QPMWONXNRMDLE2475RTIUVNTJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Importance of the Initial Conditions for Star Formation - III: Statistical Properties of Embedded Protostellar Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Christoph Federrath, Philipp Girichidis, Ralf Klessen, Richard Allison, Robi Banerjee","submitted_at":"2011-11-23T09:47:56Z","abstract_excerpt":"We investigate the formation of protostellar clusters during the collapse of dense molecular cloud cores with a focus on the evolution of potential and kinetic energy, the degree of substructure, and the early phase of mass segregation. Our study is based on a series of hydrodynamic simulations of dense cores, where we vary the initial density profile and the initial turbulent velocity. In the three-dimensional adaptive mesh refinement simulations, we follow the dynamical formation of filaments and protostars until a star formation efficiency of 20%. Despite the different initial configuration"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.5440","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":"2026-05-18T01:59:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+YiNONvplpmlOa4xf7WQfOP7TzCdCqwaJkXzRy7+u6vzobSgpaE9dtt4bQToeDZgCns1iL7AWdVxEwTQxO08Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:55:29.677657Z"},"content_sha256":"ec2486d53be0eb97e5de774027936dad751a2bb3ec0b965122b3d5b4565a3b1d","schema_version":"1.0","event_id":"sha256:ec2486d53be0eb97e5de774027936dad751a2bb3ec0b965122b3d5b4565a3b1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6QPMWONXNRMDLE2475RTIUVNTJ/bundle.json","state_url":"https://pith.science/pith/6QPMWONXNRMDLE2475RTIUVNTJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6QPMWONXNRMDLE2475RTIUVNTJ/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":"2026-05-27T00:55:29Z","links":{"resolver":"https://pith.science/pith/6QPMWONXNRMDLE2475RTIUVNTJ","bundle":"https://pith.science/pith/6QPMWONXNRMDLE2475RTIUVNTJ/bundle.json","state":"https://pith.science/pith/6QPMWONXNRMDLE2475RTIUVNTJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6QPMWONXNRMDLE2475RTIUVNTJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:6QPMWONXNRMDLE2475RTIUVNTJ","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":"0dd3b1c1b38c512ef04d6c7a66c9f9cf4ca28d91602ebb827feade54c5b3f262","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-23T09:47:56Z","title_canon_sha256":"61add40e2ffb1d4f19ab9ecedbf006d2b580e7134fb64a9577b3a53859c97a3d"},"schema_version":"1.0","source":{"id":"1111.5440","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.5440","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"arxiv_version","alias_value":"1111.5440v1","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.5440","created_at":"2026-05-18T01:59:26Z"},{"alias_kind":"pith_short_12","alias_value":"6QPMWONXNRMD","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"6QPMWONXNRMDLE24","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"6QPMWONX","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:ec2486d53be0eb97e5de774027936dad751a2bb3ec0b965122b3d5b4565a3b1d","target":"graph","created_at":"2026-05-18T01:59:26Z","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 investigate the formation of protostellar clusters during the collapse of dense molecular cloud cores with a focus on the evolution of potential and kinetic energy, the degree of substructure, and the early phase of mass segregation. Our study is based on a series of hydrodynamic simulations of dense cores, where we vary the initial density profile and the initial turbulent velocity. In the three-dimensional adaptive mesh refinement simulations, we follow the dynamical formation of filaments and protostars until a star formation efficiency of 20%. Despite the different initial configuration","authors_text":"Christoph Federrath, Philipp Girichidis, Ralf Klessen, Richard Allison, Robi Banerjee","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-23T09:47:56Z","title":"Importance of the Initial Conditions for Star Formation - III: Statistical Properties of Embedded Protostellar Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.5440","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":"sha256:8ba1a17ff498e5f9861992c1738d42525003e66911862b3b0e2eb7014e062e07","target":"record","created_at":"2026-05-18T01:59:26Z","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":"0dd3b1c1b38c512ef04d6c7a66c9f9cf4ca28d91602ebb827feade54c5b3f262","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-11-23T09:47:56Z","title_canon_sha256":"61add40e2ffb1d4f19ab9ecedbf006d2b580e7134fb64a9577b3a53859c97a3d"},"schema_version":"1.0","source":{"id":"1111.5440","kind":"arxiv","version":1}},"canonical_sha256":"f41ecb39b76c5835935cff633452ad9a7fc5556aae7c1aeadaa93baa42e73100","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f41ecb39b76c5835935cff633452ad9a7fc5556aae7c1aeadaa93baa42e73100","first_computed_at":"2026-05-18T01:59:26.434205Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:26.434205Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fVLf+gLUYhIGcVOu5dZ+J217QK8be1nJ2dPTwTjArImlbb3oWdVWE6lIKDdZMpQaKCLCjr/FVxVapFYrmYmMBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:26.434845Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.5440","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ba1a17ff498e5f9861992c1738d42525003e66911862b3b0e2eb7014e062e07","sha256:ec2486d53be0eb97e5de774027936dad751a2bb3ec0b965122b3d5b4565a3b1d"],"state_sha256":"abca58c53ecc70dff5f9af96b144403c882afa9e3dfabbb8a67982e77a3f3067"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YtA36uvgEjUoWfNNrLySCxKsxAuPQ2GYesMjLlU6lN/++jUkxtw6gcbCMin7146TC0ISHJx/GacwvADsVe8nAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T00:55:29.680287Z","bundle_sha256":"8200939b0ca32782bd46e8ca228338fdb1873a195c9d1987d9676c3671365458"}}