{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:GB4SM7EKM62NOL7T64HCK4ZF76","short_pith_number":"pith:GB4SM7EK","canonical_record":{"source":{"id":"1008.4516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-26T14:04:27Z","cross_cats_sorted":[],"title_canon_sha256":"56d6bb6c13c0a4300d2c9238fafd68ac9621e324d8f5d224a13be5a844af3f01","abstract_canon_sha256":"63fdd5ac322ce5aea15e9a0e485ee66023266dd1d916ae10a9af7b18473a20bb"},"schema_version":"1.0"},"canonical_sha256":"3079267c8a67b4d72ff3f70e257325ff83186499adbb1713f65935fd3154aa15","source":{"kind":"arxiv","id":"1008.4516","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.4516","created_at":"2026-05-18T04:39:58Z"},{"alias_kind":"arxiv_version","alias_value":"1008.4516v1","created_at":"2026-05-18T04:39:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4516","created_at":"2026-05-18T04:39:58Z"},{"alias_kind":"pith_short_12","alias_value":"GB4SM7EKM62N","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GB4SM7EKM62NOL7T","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GB4SM7EK","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:GB4SM7EKM62NOL7T64HCK4ZF76","target":"record","payload":{"canonical_record":{"source":{"id":"1008.4516","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-26T14:04:27Z","cross_cats_sorted":[],"title_canon_sha256":"56d6bb6c13c0a4300d2c9238fafd68ac9621e324d8f5d224a13be5a844af3f01","abstract_canon_sha256":"63fdd5ac322ce5aea15e9a0e485ee66023266dd1d916ae10a9af7b18473a20bb"},"schema_version":"1.0"},"canonical_sha256":"3079267c8a67b4d72ff3f70e257325ff83186499adbb1713f65935fd3154aa15","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:39:58.985556Z","signature_b64":"BKtrEwV3Wy90ZqMFnFN4q6AyfXLAnMv4KL1dBUdZpNLxzI/1Ss7g60EyACZx6tq6LFvDI40YT0H5ZSYLfuQ+Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3079267c8a67b4d72ff3f70e257325ff83186499adbb1713f65935fd3154aa15","last_reissued_at":"2026-05-18T04:39:58.985098Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:39:58.985098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.4516","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":"2026-05-18T04:39:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"52HVKc+Nlt2S3A6AJw2wlv9i9rCy1FoOAGbNmGykwJVVAViCNmPfJ9ifTOTmCNmznPgdS6kBbCo5eKDiCcbjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:27:02.948711Z"},"content_sha256":"3d9606e88f389dab539f71c226aece81be668b62030774b7ec7c26ffc313ac14","schema_version":"1.0","event_id":"sha256:3d9606e88f389dab539f71c226aece81be668b62030774b7ec7c26ffc313ac14"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:GB4SM7EKM62NOL7T64HCK4ZF76","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Circumventing the radiation pressure barrier in the formation of massive stars via disk accretion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Henrik Beuther, Hubert Klahr, Rolf Kuiper, Thomas Henning","submitted_at":"2010-08-26T14:04:27Z","abstract_excerpt":"We present radiation hydrodynamics simulations of the collapse of massive pre-stellar cores. We treat frequency dependent radiative feedback from stellar evolution and accretion luminosity at a numerical resolution down to 1.27 AU. In the 2D approximation of axially symmetric simulations, it is possible for the first time to simulate the whole accretion phase (up to the end of the accretion disk epoch) for the forming massive star and to perform a broad scan of the parameter space. Our simulation series show evidently the necessity to incorporate the dust sublimation front to preserve the high"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4516","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":"2026-05-18T04:39:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LEyBZq7v/SdSviHPAAHt74FpoM4mHxR4v4tPzyutN2HmYNEf4DkynBuawBJ9NE/+P7mqqeBiTgEyUxdBdaMNDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:27:02.949382Z"},"content_sha256":"d6727d6d29e2c505bf958c5c2d99aa33abc58daf61c0744e0eddd2baafb31d29","schema_version":"1.0","event_id":"sha256:d6727d6d29e2c505bf958c5c2d99aa33abc58daf61c0744e0eddd2baafb31d29"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GB4SM7EKM62NOL7T64HCK4ZF76/bundle.json","state_url":"https://pith.science/pith/GB4SM7EKM62NOL7T64HCK4ZF76/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GB4SM7EKM62NOL7T64HCK4ZF76/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":"2026-05-26T17:27:02Z","links":{"resolver":"https://pith.science/pith/GB4SM7EKM62NOL7T64HCK4ZF76","bundle":"https://pith.science/pith/GB4SM7EKM62NOL7T64HCK4ZF76/bundle.json","state":"https://pith.science/pith/GB4SM7EKM62NOL7T64HCK4ZF76/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GB4SM7EKM62NOL7T64HCK4ZF76/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GB4SM7EKM62NOL7T64HCK4ZF76","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":"63fdd5ac322ce5aea15e9a0e485ee66023266dd1d916ae10a9af7b18473a20bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-26T14:04:27Z","title_canon_sha256":"56d6bb6c13c0a4300d2c9238fafd68ac9621e324d8f5d224a13be5a844af3f01"},"schema_version":"1.0","source":{"id":"1008.4516","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.4516","created_at":"2026-05-18T04:39:58Z"},{"alias_kind":"arxiv_version","alias_value":"1008.4516v1","created_at":"2026-05-18T04:39:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.4516","created_at":"2026-05-18T04:39:58Z"},{"alias_kind":"pith_short_12","alias_value":"GB4SM7EKM62N","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GB4SM7EKM62NOL7T","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GB4SM7EK","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:d6727d6d29e2c505bf958c5c2d99aa33abc58daf61c0744e0eddd2baafb31d29","target":"graph","created_at":"2026-05-18T04:39:58Z","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 present radiation hydrodynamics simulations of the collapse of massive pre-stellar cores. We treat frequency dependent radiative feedback from stellar evolution and accretion luminosity at a numerical resolution down to 1.27 AU. In the 2D approximation of axially symmetric simulations, it is possible for the first time to simulate the whole accretion phase (up to the end of the accretion disk epoch) for the forming massive star and to perform a broad scan of the parameter space. Our simulation series show evidently the necessity to incorporate the dust sublimation front to preserve the high","authors_text":"Henrik Beuther, Hubert Klahr, Rolf Kuiper, Thomas Henning","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-26T14:04:27Z","title":"Circumventing the radiation pressure barrier in the formation of massive stars via disk accretion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.4516","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":"sha256:3d9606e88f389dab539f71c226aece81be668b62030774b7ec7c26ffc313ac14","target":"record","created_at":"2026-05-18T04:39:58Z","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":"63fdd5ac322ce5aea15e9a0e485ee66023266dd1d916ae10a9af7b18473a20bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-26T14:04:27Z","title_canon_sha256":"56d6bb6c13c0a4300d2c9238fafd68ac9621e324d8f5d224a13be5a844af3f01"},"schema_version":"1.0","source":{"id":"1008.4516","kind":"arxiv","version":1}},"canonical_sha256":"3079267c8a67b4d72ff3f70e257325ff83186499adbb1713f65935fd3154aa15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3079267c8a67b4d72ff3f70e257325ff83186499adbb1713f65935fd3154aa15","first_computed_at":"2026-05-18T04:39:58.985098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:39:58.985098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BKtrEwV3Wy90ZqMFnFN4q6AyfXLAnMv4KL1dBUdZpNLxzI/1Ss7g60EyACZx6tq6LFvDI40YT0H5ZSYLfuQ+Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:39:58.985556Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.4516","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d9606e88f389dab539f71c226aece81be668b62030774b7ec7c26ffc313ac14","sha256:d6727d6d29e2c505bf958c5c2d99aa33abc58daf61c0744e0eddd2baafb31d29"],"state_sha256":"a6e94f41534fe95cd4fe197d8c5410dae9df4523bcc59bf67a4ed83307da9fcf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nZkPn66Ee8fgQaXNuN/f7iRWoVEVjOarm7HmzYc2VHSznVI2THgZ2kX4G6jb46LWgfztSSo3o7BkBP9uPblYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:27:02.953934Z","bundle_sha256":"d2c088c4816c97ed6aef686c8a92af6476bdbb8e5fe479b331b0423d88444450"}}