{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:DJB4SXHGHV4M2MLI4WA6Y56X23","short_pith_number":"pith:DJB4SXHG","canonical_record":{"source":{"id":"astro-ph/0303280","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-13T20:37:45Z","cross_cats_sorted":[],"title_canon_sha256":"b5882adc0c792b08e6b8c38bd67a412b17259fd11dd6cefba967270016d1dfbd","abstract_canon_sha256":"a3503274a07fa7b9a3f47b8727639ccbfc76fbbdba5deb895f85080e59c4b44f"},"schema_version":"1.0"},"canonical_sha256":"1a43c95ce63d78cd3168e581ec77d7d6f3b3ee4ab08a93d8bb459a86abf463dd","source":{"kind":"arxiv","id":"astro-ph/0303280","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0303280","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0303280v1","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0303280","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"pith_short_12","alias_value":"DJB4SXHGHV4M","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"pith_short_16","alias_value":"DJB4SXHGHV4M2MLI","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"pith_short_8","alias_value":"DJB4SXHG","created_at":"2026-07-04T16:36:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:DJB4SXHGHV4M2MLI4WA6Y56X23","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0303280","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-13T20:37:45Z","cross_cats_sorted":[],"title_canon_sha256":"b5882adc0c792b08e6b8c38bd67a412b17259fd11dd6cefba967270016d1dfbd","abstract_canon_sha256":"a3503274a07fa7b9a3f47b8727639ccbfc76fbbdba5deb895f85080e59c4b44f"},"schema_version":"1.0"},"canonical_sha256":"1a43c95ce63d78cd3168e581ec77d7d6f3b3ee4ab08a93d8bb459a86abf463dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:36:39.551926Z","signature_b64":"njPe6iOaQpC/3XFn+9IxdwxQ3dEfv8ic7lZqR6eBmSYu+IGy5ijam+tiN9bDqBrP6fgeZ0CC8ns1rY4Nmq5kAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a43c95ce63d78cd3168e581ec77d7d6f3b3ee4ab08a93d8bb459a86abf463dd","last_reissued_at":"2026-07-04T16:36:39.551415Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:36:39.551415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0303280","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":"2026-07-04T16:36:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ej04aeiYYdSHWasPCNYL2cHG6QI4iQF86jp0G9LO0q6AoLP0gxvZEY+atPQAmQRtcPuN834XqlSNr4iK3uAoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:07:13.546561Z"},"content_sha256":"0bb0323e0558d89cdea5f5f446f144f8376b40bb4949b6bce3da84e1cba0d0f2","schema_version":"1.0","event_id":"sha256:0bb0323e0558d89cdea5f5f446f144f8376b40bb4949b6bce3da84e1cba0d0f2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:DJB4SXHGHV4M2MLI4WA6Y56X23","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Turbulent Interstellar Medium Origin of the Binary Period Distribution","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Robert T. Fisher","submitted_at":"2003-03-13T20:37:45Z","abstract_excerpt":"In this paper, we present a semi-empirical model of isolated binary star formation. This model includes the effects of turbulence in the initial state of the gas, and has binary orbital parameters consistent with observation. Our fundamental assumption is that the angular momenta of binary star systems is directly related to the net angular momentum induced by turbulence in parent molecular cloud cores. The primary results of this model are as follows. (i) A quantitative prediction of the initial width of the binary period distribution ($\\sigma_{\\log {P}_d} = 1.6 - 2.1$ for a star formation ef"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0303280","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0303280/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:36:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kg3mb3p+vsdU90Z6OQ6Fg9ll0s8F3Vl5S+yJN/2bETqmFgZKClAxGgxWjOVNdl1txr3nDpVx8jpdgO7o6gn6Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:07:13.547187Z"},"content_sha256":"001883e3b0bf7a7df1f3c347d4c1ad2aa063ffe82411b3cfbc3f35f7227e56f0","schema_version":"1.0","event_id":"sha256:001883e3b0bf7a7df1f3c347d4c1ad2aa063ffe82411b3cfbc3f35f7227e56f0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DJB4SXHGHV4M2MLI4WA6Y56X23/bundle.json","state_url":"https://pith.science/pith/DJB4SXHGHV4M2MLI4WA6Y56X23/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DJB4SXHGHV4M2MLI4WA6Y56X23/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":"2026-08-15T05:07:13Z","links":{"resolver":"https://pith.science/pith/DJB4SXHGHV4M2MLI4WA6Y56X23","bundle":"https://pith.science/pith/DJB4SXHGHV4M2MLI4WA6Y56X23/bundle.json","state":"https://pith.science/pith/DJB4SXHGHV4M2MLI4WA6Y56X23/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DJB4SXHGHV4M2MLI4WA6Y56X23/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:DJB4SXHGHV4M2MLI4WA6Y56X23","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":"a3503274a07fa7b9a3f47b8727639ccbfc76fbbdba5deb895f85080e59c4b44f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-13T20:37:45Z","title_canon_sha256":"b5882adc0c792b08e6b8c38bd67a412b17259fd11dd6cefba967270016d1dfbd"},"schema_version":"1.0","source":{"id":"astro-ph/0303280","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0303280","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0303280v1","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0303280","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"pith_short_12","alias_value":"DJB4SXHGHV4M","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"pith_short_16","alias_value":"DJB4SXHGHV4M2MLI","created_at":"2026-07-04T16:36:39Z"},{"alias_kind":"pith_short_8","alias_value":"DJB4SXHG","created_at":"2026-07-04T16:36:39Z"}],"graph_snapshots":[{"event_id":"sha256:001883e3b0bf7a7df1f3c347d4c1ad2aa063ffe82411b3cfbc3f35f7227e56f0","target":"graph","created_at":"2026-07-04T16:36:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0303280/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we present a semi-empirical model of isolated binary star formation. This model includes the effects of turbulence in the initial state of the gas, and has binary orbital parameters consistent with observation. Our fundamental assumption is that the angular momenta of binary star systems is directly related to the net angular momentum induced by turbulence in parent molecular cloud cores. The primary results of this model are as follows. (i) A quantitative prediction of the initial width of the binary period distribution ($\\sigma_{\\log {P}_d} = 1.6 - 2.1$ for a star formation ef","authors_text":"Robert T. Fisher","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-03-13T20:37:45Z","title":"A Turbulent Interstellar Medium Origin of the Binary Period Distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0303280","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":"sha256:0bb0323e0558d89cdea5f5f446f144f8376b40bb4949b6bce3da84e1cba0d0f2","target":"record","created_at":"2026-07-04T16:36:39Z","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":"a3503274a07fa7b9a3f47b8727639ccbfc76fbbdba5deb895f85080e59c4b44f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-03-13T20:37:45Z","title_canon_sha256":"b5882adc0c792b08e6b8c38bd67a412b17259fd11dd6cefba967270016d1dfbd"},"schema_version":"1.0","source":{"id":"astro-ph/0303280","kind":"arxiv","version":1}},"canonical_sha256":"1a43c95ce63d78cd3168e581ec77d7d6f3b3ee4ab08a93d8bb459a86abf463dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a43c95ce63d78cd3168e581ec77d7d6f3b3ee4ab08a93d8bb459a86abf463dd","first_computed_at":"2026-07-04T16:36:39.551415Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:36:39.551415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"njPe6iOaQpC/3XFn+9IxdwxQ3dEfv8ic7lZqR6eBmSYu+IGy5ijam+tiN9bDqBrP6fgeZ0CC8ns1rY4Nmq5kAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:36:39.551926Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0303280","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0bb0323e0558d89cdea5f5f446f144f8376b40bb4949b6bce3da84e1cba0d0f2","sha256:001883e3b0bf7a7df1f3c347d4c1ad2aa063ffe82411b3cfbc3f35f7227e56f0"],"state_sha256":"10d4496aff52410db8452f269ce73b2f9fc3f1c14b310b94332e8180527b63d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YebeUr93OIPqY53EVirrboEY575DOvwBK0R8bCwkfRGeJsNDQ/lpnQXjBTii5rJsgZiTM0LSz3tp47wgMDHiBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T05:07:13.552272Z","bundle_sha256":"4a3f4e801c2483fcc27f0511b8ce88fdfe8dacde2ed2cd143ec0f8788555fbba"}}