{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:EP7WMFOUAT3QD6RFTYXLKXVK3G","short_pith_number":"pith:EP7WMFOU","canonical_record":{"source":{"id":"1011.4624","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-21T00:26:50Z","cross_cats_sorted":[],"title_canon_sha256":"8e78f31eefe86a3296d0c6f2dd9217eba0c58bef47623997239eaf75f09d809e","abstract_canon_sha256":"2352f5afabdc8099cbeeb42be849260585e06ed81c302f324440ca936f072b8a"},"schema_version":"1.0"},"canonical_sha256":"23ff6615d404f701fa259e2eb55eaad9b7d06ae1259428e834347b02d92277c6","source":{"kind":"arxiv","id":"1011.4624","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.4624","created_at":"2026-05-18T02:04:42Z"},{"alias_kind":"arxiv_version","alias_value":"1011.4624v1","created_at":"2026-05-18T02:04:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.4624","created_at":"2026-05-18T02:04:42Z"},{"alias_kind":"pith_short_12","alias_value":"EP7WMFOUAT3Q","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EP7WMFOUAT3QD6RF","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EP7WMFOU","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:EP7WMFOUAT3QD6RFTYXLKXVK3G","target":"record","payload":{"canonical_record":{"source":{"id":"1011.4624","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-21T00:26:50Z","cross_cats_sorted":[],"title_canon_sha256":"8e78f31eefe86a3296d0c6f2dd9217eba0c58bef47623997239eaf75f09d809e","abstract_canon_sha256":"2352f5afabdc8099cbeeb42be849260585e06ed81c302f324440ca936f072b8a"},"schema_version":"1.0"},"canonical_sha256":"23ff6615d404f701fa259e2eb55eaad9b7d06ae1259428e834347b02d92277c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:42.962223Z","signature_b64":"F93m6xG++nSER1bRpjQfgtIgZObG5Fv8meShFCWuQtTecWz8s+RM6O+A0JdGlYm6YVRqjV0Jbjvj0IALq6VDDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23ff6615d404f701fa259e2eb55eaad9b7d06ae1259428e834347b02d92277c6","last_reissued_at":"2026-05-18T02:04:42.961514Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:42.961514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.4624","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":"2026-05-18T02:04:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ok2iRPQ0EDJF2cuwYsuE4/mYQi7q4Z3kPd7+5uEoH2W4sP8B9t5sX8h0lNM84XsWeyUZrrzow9zF5iuHyvh2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T15:31:36.485427Z"},"content_sha256":"dcaf9cef7010df43dbcf9389763f3b2131815a455611745d3b64b6e618bedbe1","schema_version":"1.0","event_id":"sha256:dcaf9cef7010df43dbcf9389763f3b2131815a455611745d3b64b6e618bedbe1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:EP7WMFOUAT3QD6RFTYXLKXVK3G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pop III Stellar Masses and IMF","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Michael L. Norman","submitted_at":"2010-11-21T00:26:50Z","abstract_excerpt":"We provide a status report on our current understanding of the mass scales for Pop III.1 and Pop III.2 stars. Since the last review (Norman 2008), substantial progress has been made both numerically and analytically on the late stages of protostellar cloud core collapse, protostar formation and accretion, and stellar evolution taking into account cloud core properties and radiative feedback effects. Based on this, there are growing indications that primordial stars forming from purely cosmological initial conditions (Pop III.1) were substantially more massive than stars forming in preionized g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4624","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":"2026-05-18T02:04:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gyrCJ5ay0VZehRYgL1YhPNNruvNsEtbDF66j0HjJASVTx2vIvqCvRFxTrYTOeMnq2ckvvqvGFqg+Cnk3Yv0tBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T15:31:36.485776Z"},"content_sha256":"bd72b6e3222be7d36438bb1fc3c198e40c76a4f75868306c041af6ed653c62c1","schema_version":"1.0","event_id":"sha256:bd72b6e3222be7d36438bb1fc3c198e40c76a4f75868306c041af6ed653c62c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G/bundle.json","state_url":"https://pith.science/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G/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":"2026-06-04T15:31:36Z","links":{"resolver":"https://pith.science/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G","bundle":"https://pith.science/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G/bundle.json","state":"https://pith.science/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EP7WMFOUAT3QD6RFTYXLKXVK3G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:EP7WMFOUAT3QD6RFTYXLKXVK3G","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":"2352f5afabdc8099cbeeb42be849260585e06ed81c302f324440ca936f072b8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-21T00:26:50Z","title_canon_sha256":"8e78f31eefe86a3296d0c6f2dd9217eba0c58bef47623997239eaf75f09d809e"},"schema_version":"1.0","source":{"id":"1011.4624","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.4624","created_at":"2026-05-18T02:04:42Z"},{"alias_kind":"arxiv_version","alias_value":"1011.4624v1","created_at":"2026-05-18T02:04:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.4624","created_at":"2026-05-18T02:04:42Z"},{"alias_kind":"pith_short_12","alias_value":"EP7WMFOUAT3Q","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EP7WMFOUAT3QD6RF","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EP7WMFOU","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:bd72b6e3222be7d36438bb1fc3c198e40c76a4f75868306c041af6ed653c62c1","target":"graph","created_at":"2026-05-18T02:04:42Z","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 provide a status report on our current understanding of the mass scales for Pop III.1 and Pop III.2 stars. Since the last review (Norman 2008), substantial progress has been made both numerically and analytically on the late stages of protostellar cloud core collapse, protostar formation and accretion, and stellar evolution taking into account cloud core properties and radiative feedback effects. Based on this, there are growing indications that primordial stars forming from purely cosmological initial conditions (Pop III.1) were substantially more massive than stars forming in preionized g","authors_text":"Michael L. Norman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-21T00:26:50Z","title":"Pop III Stellar Masses and IMF"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.4624","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:dcaf9cef7010df43dbcf9389763f3b2131815a455611745d3b64b6e618bedbe1","target":"record","created_at":"2026-05-18T02:04:42Z","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":"2352f5afabdc8099cbeeb42be849260585e06ed81c302f324440ca936f072b8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-21T00:26:50Z","title_canon_sha256":"8e78f31eefe86a3296d0c6f2dd9217eba0c58bef47623997239eaf75f09d809e"},"schema_version":"1.0","source":{"id":"1011.4624","kind":"arxiv","version":1}},"canonical_sha256":"23ff6615d404f701fa259e2eb55eaad9b7d06ae1259428e834347b02d92277c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23ff6615d404f701fa259e2eb55eaad9b7d06ae1259428e834347b02d92277c6","first_computed_at":"2026-05-18T02:04:42.961514Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:42.961514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F93m6xG++nSER1bRpjQfgtIgZObG5Fv8meShFCWuQtTecWz8s+RM6O+A0JdGlYm6YVRqjV0Jbjvj0IALq6VDDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:42.962223Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.4624","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcaf9cef7010df43dbcf9389763f3b2131815a455611745d3b64b6e618bedbe1","sha256:bd72b6e3222be7d36438bb1fc3c198e40c76a4f75868306c041af6ed653c62c1"],"state_sha256":"8bcb83a7c47305417a65064bd67d9eef07fa3288d802a865715f04766feadbf0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3qpTyVsrR5VCXfHgTcSRC2cQv86iDuY/XsNLjDpU7My27Q1UeNZNL6yt85zjciYbm1mIkOtvUtSi8oNSiLQdDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T15:31:36.487805Z","bundle_sha256":"7f4fbe12f1da85d4ee9ec63a669d5f74eb8be7e1184baf0184df5910dc7e8144"}}