{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:CKPSEYSMTIXG633UXIMXBNB7VB","short_pith_number":"pith:CKPSEYSM","canonical_record":{"source":{"id":"1310.4567","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-17T03:13:12Z","cross_cats_sorted":[],"title_canon_sha256":"f9fc9bf1b5c6756f8ab6353db959d2027e827431f409847483cfc90ec0a93458","abstract_canon_sha256":"4a9c5432f39fa8e5fd0aea21fb10d3e0a9943046f3826509bba241656a3d9c60"},"schema_version":"1.0"},"canonical_sha256":"129f22624c9a2e6f6f74ba1970b43fa87b513a636a5b72020dc3e232a319f8e8","source":{"kind":"arxiv","id":"1310.4567","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4567","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4567v1","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4567","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"pith_short_12","alias_value":"CKPSEYSMTIXG","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CKPSEYSMTIXG633U","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CKPSEYSM","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:CKPSEYSMTIXG633UXIMXBNB7VB","target":"record","payload":{"canonical_record":{"source":{"id":"1310.4567","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-17T03:13:12Z","cross_cats_sorted":[],"title_canon_sha256":"f9fc9bf1b5c6756f8ab6353db959d2027e827431f409847483cfc90ec0a93458","abstract_canon_sha256":"4a9c5432f39fa8e5fd0aea21fb10d3e0a9943046f3826509bba241656a3d9c60"},"schema_version":"1.0"},"canonical_sha256":"129f22624c9a2e6f6f74ba1970b43fa87b513a636a5b72020dc3e232a319f8e8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:13.750582Z","signature_b64":"f2ION9ZEqT9b9FvuPVc7EKbro6L+cEHdWDOmbJ6YvR/GqJWStBPJsmHYic8XeAcmoLriXAaVJEs3X/lfSq8KDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"129f22624c9a2e6f6f74ba1970b43fa87b513a636a5b72020dc3e232a319f8e8","last_reissued_at":"2026-05-18T03:10:13.750036Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:13.750036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.4567","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":"2026-05-18T03:10:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rzYrsDg0M0PytHPG5tPYcW3GKocjoi9+yVgt2Hy1OnHBFotGaV5qRUiMN2N9fgD5eYyprlCfw4z3I/48mxkZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:51:57.129331Z"},"content_sha256":"db126c17af4368e742bb122901d9f1007a8d9456cd3c0cf3dadaa6c1614863f5","schema_version":"1.0","event_id":"sha256:db126c17af4368e742bb122901d9f1007a8d9456cd3c0cf3dadaa6c1614863f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:CKPSEYSMTIXG633UXIMXBNB7VB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Smoothed Particle Magnetohydrodynamics Simulations of Protostellar Jets and Turbulent Dynamos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Christoph Federrath, Daniel J. Price, Matthew R. Bate, Terrence S. Tricco","submitted_at":"2013-10-17T03:13:12Z","abstract_excerpt":"We presents results from Smoothed Particle Magnetohydrodynamics simulations of collapsing molecular cloud cores, and dynamo amplification of the magnetic field in the presence of Mach 10 magnetised turbulence. Our star formation simulations have produced, for the first time ever, highly collimated magnetised protostellar jets from the first hydrostatic core phase. Up to 40% of the initial core mass may be ejected through this outflow. The primary difficulty in performing these simulations is maintaining the divergence free constraint of the magnetic field, and to address this issue, we have de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4567","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":"2026-05-18T03:10:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0qVIn8xFRbnJBnWDB+EUVGXS+efPcx0cSESn/tm2DGbqS7IrTOsFCAIob2mPGSXsqzKAd10eIG0GAX/o7K/YAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T10:51:57.129933Z"},"content_sha256":"c2b6647263c73a36d9beb12b56702c55d5e26c24b06d33769bc14e6146990586","schema_version":"1.0","event_id":"sha256:c2b6647263c73a36d9beb12b56702c55d5e26c24b06d33769bc14e6146990586"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CKPSEYSMTIXG633UXIMXBNB7VB/bundle.json","state_url":"https://pith.science/pith/CKPSEYSMTIXG633UXIMXBNB7VB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CKPSEYSMTIXG633UXIMXBNB7VB/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":"2026-05-27T10:51:57Z","links":{"resolver":"https://pith.science/pith/CKPSEYSMTIXG633UXIMXBNB7VB","bundle":"https://pith.science/pith/CKPSEYSMTIXG633UXIMXBNB7VB/bundle.json","state":"https://pith.science/pith/CKPSEYSMTIXG633UXIMXBNB7VB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CKPSEYSMTIXG633UXIMXBNB7VB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CKPSEYSMTIXG633UXIMXBNB7VB","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":"4a9c5432f39fa8e5fd0aea21fb10d3e0a9943046f3826509bba241656a3d9c60","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-17T03:13:12Z","title_canon_sha256":"f9fc9bf1b5c6756f8ab6353db959d2027e827431f409847483cfc90ec0a93458"},"schema_version":"1.0","source":{"id":"1310.4567","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.4567","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"arxiv_version","alias_value":"1310.4567v1","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4567","created_at":"2026-05-18T03:10:13Z"},{"alias_kind":"pith_short_12","alias_value":"CKPSEYSMTIXG","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CKPSEYSMTIXG633U","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CKPSEYSM","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:c2b6647263c73a36d9beb12b56702c55d5e26c24b06d33769bc14e6146990586","target":"graph","created_at":"2026-05-18T03:10:13Z","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 presents results from Smoothed Particle Magnetohydrodynamics simulations of collapsing molecular cloud cores, and dynamo amplification of the magnetic field in the presence of Mach 10 magnetised turbulence. Our star formation simulations have produced, for the first time ever, highly collimated magnetised protostellar jets from the first hydrostatic core phase. Up to 40% of the initial core mass may be ejected through this outflow. The primary difficulty in performing these simulations is maintaining the divergence free constraint of the magnetic field, and to address this issue, we have de","authors_text":"Christoph Federrath, Daniel J. Price, Matthew R. Bate, Terrence S. Tricco","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-17T03:13:12Z","title":"Smoothed Particle Magnetohydrodynamics Simulations of Protostellar Jets and Turbulent Dynamos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4567","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:db126c17af4368e742bb122901d9f1007a8d9456cd3c0cf3dadaa6c1614863f5","target":"record","created_at":"2026-05-18T03:10:13Z","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":"4a9c5432f39fa8e5fd0aea21fb10d3e0a9943046f3826509bba241656a3d9c60","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-17T03:13:12Z","title_canon_sha256":"f9fc9bf1b5c6756f8ab6353db959d2027e827431f409847483cfc90ec0a93458"},"schema_version":"1.0","source":{"id":"1310.4567","kind":"arxiv","version":1}},"canonical_sha256":"129f22624c9a2e6f6f74ba1970b43fa87b513a636a5b72020dc3e232a319f8e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"129f22624c9a2e6f6f74ba1970b43fa87b513a636a5b72020dc3e232a319f8e8","first_computed_at":"2026-05-18T03:10:13.750036Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:13.750036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f2ION9ZEqT9b9FvuPVc7EKbro6L+cEHdWDOmbJ6YvR/GqJWStBPJsmHYic8XeAcmoLriXAaVJEs3X/lfSq8KDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:13.750582Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.4567","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db126c17af4368e742bb122901d9f1007a8d9456cd3c0cf3dadaa6c1614863f5","sha256:c2b6647263c73a36d9beb12b56702c55d5e26c24b06d33769bc14e6146990586"],"state_sha256":"470101be770b341abd726e25add74e1c0c1361b2c62e983aeb669009929755ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+U256sD4Wr0fNLZS38Ru/f7E7j+iPcWIk/22iSflt1J5vQHOm6URVijkQE7/ZQt0AkQm49oopr3prp+S8Oq8Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T10:51:57.133355Z","bundle_sha256":"9963200b19ceffa95892cfc85fffa8f912fede206d17a843ada77653959dc522"}}