{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:7CFC7EQHLS6WW5QTPEFAOAWW3W","short_pith_number":"pith:7CFC7EQH","canonical_record":{"source":{"id":"0911.3417","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-17T22:23:20Z","cross_cats_sorted":[],"title_canon_sha256":"b88a8b7989199506250ffe15221482b473169d9b41b54381221623e869e2647c","abstract_canon_sha256":"e00161e7993c386d81f4f9e005d649706505e03f9916a08f6e6807ff0114ac66"},"schema_version":"1.0"},"canonical_sha256":"f88a2f92075cbd6b7613790a0702d6dd982d4a8992a93c555b0b25d9d0565f17","source":{"kind":"arxiv","id":"0911.3417","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3417","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3417v1","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3417","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"pith_short_12","alias_value":"7CFC7EQHLS6W","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7CFC7EQHLS6WW5QT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7CFC7EQH","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:7CFC7EQHLS6WW5QTPEFAOAWW3W","target":"record","payload":{"canonical_record":{"source":{"id":"0911.3417","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-17T22:23:20Z","cross_cats_sorted":[],"title_canon_sha256":"b88a8b7989199506250ffe15221482b473169d9b41b54381221623e869e2647c","abstract_canon_sha256":"e00161e7993c386d81f4f9e005d649706505e03f9916a08f6e6807ff0114ac66"},"schema_version":"1.0"},"canonical_sha256":"f88a2f92075cbd6b7613790a0702d6dd982d4a8992a93c555b0b25d9d0565f17","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:04.821249Z","signature_b64":"xzAltLWzWdXA+zHgmgJxR99uuYxW63s57GT9l64bv++8VuHjFq4d3S6pNz/vgcdgrVaGvr5UpXsUWB7AydsbBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f88a2f92075cbd6b7613790a0702d6dd982d4a8992a93c555b0b25d9d0565f17","last_reissued_at":"2026-05-18T02:34:04.820603Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:04.820603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0911.3417","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":"2026-05-18T02:34:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I8qpHj5GiTEGsK5n8a3bxF8GlXaCZa2qjKcNlDPTCmKS5JxW5x1eF1sxNXyY12PsOQSmzSnpV5lsudFrxwP4Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:42:37.528956Z"},"content_sha256":"4addc509211e662143446095f5b9571087ba4146cb163b1648c4d063045e3d9c","schema_version":"1.0","event_id":"sha256:4addc509211e662143446095f5b9571087ba4146cb163b1648c4d063045e3d9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:7CFC7EQHLS6WW5QTPEFAOAWW3W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. I. Varied Shock Speeds","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Alan P. Boss, Elizabeth A. Myhill, Harri A. T. Vanhala, Sandra A. Keiser, Sergei I. Ipatov","submitted_at":"2009-11-17T22:23:20Z","abstract_excerpt":"The discovery of decay products of a short-lived radioisotope (SLRI) in the Allende meteorite led to the hypothesis that a supernova shock wave transported freshly synthesized SLRI to the presolar dense cloud core, triggered its self-gravitational collapse, and injected the SLRI into the core. Previous multidimensional numerical calculations of the shock-cloud collision process showed that this hypothesis is plausible when the shock wave and dense cloud core are assumed to remain isothermal at ~10 K, but not when compressional heating to ~1000 K is assumed. Our two-dimensional models (Boss et "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3417","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":"2026-05-18T02:34:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"px79xd9ap3EF1PrS/t/zmUahgC5cqe5nvHRWMgroReyfg+uEMvYkTZCkQ/Io7jTG2eUe658pXyjFnv0Sr0HtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:42:37.529349Z"},"content_sha256":"6cc6e3e6d18e62e1525851e1370b8a0b8bd5219866707ee5fd60313c426f63e3","schema_version":"1.0","event_id":"sha256:6cc6e3e6d18e62e1525851e1370b8a0b8bd5219866707ee5fd60313c426f63e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W/bundle.json","state_url":"https://pith.science/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W/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":"2026-05-31T04:42:37Z","links":{"resolver":"https://pith.science/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W","bundle":"https://pith.science/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W/bundle.json","state":"https://pith.science/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7CFC7EQHLS6WW5QTPEFAOAWW3W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:7CFC7EQHLS6WW5QTPEFAOAWW3W","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":"e00161e7993c386d81f4f9e005d649706505e03f9916a08f6e6807ff0114ac66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-17T22:23:20Z","title_canon_sha256":"b88a8b7989199506250ffe15221482b473169d9b41b54381221623e869e2647c"},"schema_version":"1.0","source":{"id":"0911.3417","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3417","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3417v1","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3417","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"pith_short_12","alias_value":"7CFC7EQHLS6W","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7CFC7EQHLS6WW5QT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7CFC7EQH","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:6cc6e3e6d18e62e1525851e1370b8a0b8bd5219866707ee5fd60313c426f63e3","target":"graph","created_at":"2026-05-18T02:34:04Z","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":"The discovery of decay products of a short-lived radioisotope (SLRI) in the Allende meteorite led to the hypothesis that a supernova shock wave transported freshly synthesized SLRI to the presolar dense cloud core, triggered its self-gravitational collapse, and injected the SLRI into the core. Previous multidimensional numerical calculations of the shock-cloud collision process showed that this hypothesis is plausible when the shock wave and dense cloud core are assumed to remain isothermal at ~10 K, but not when compressional heating to ~1000 K is assumed. Our two-dimensional models (Boss et ","authors_text":"Alan P. Boss, Elizabeth A. Myhill, Harri A. T. Vanhala, Sandra A. Keiser, Sergei I. Ipatov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-17T22:23:20Z","title":"Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. I. Varied Shock Speeds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3417","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":"sha256:4addc509211e662143446095f5b9571087ba4146cb163b1648c4d063045e3d9c","target":"record","created_at":"2026-05-18T02:34:04Z","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":"e00161e7993c386d81f4f9e005d649706505e03f9916a08f6e6807ff0114ac66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2009-11-17T22:23:20Z","title_canon_sha256":"b88a8b7989199506250ffe15221482b473169d9b41b54381221623e869e2647c"},"schema_version":"1.0","source":{"id":"0911.3417","kind":"arxiv","version":1}},"canonical_sha256":"f88a2f92075cbd6b7613790a0702d6dd982d4a8992a93c555b0b25d9d0565f17","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f88a2f92075cbd6b7613790a0702d6dd982d4a8992a93c555b0b25d9d0565f17","first_computed_at":"2026-05-18T02:34:04.820603Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:04.820603Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xzAltLWzWdXA+zHgmgJxR99uuYxW63s57GT9l64bv++8VuHjFq4d3S6pNz/vgcdgrVaGvr5UpXsUWB7AydsbBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:04.821249Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.3417","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4addc509211e662143446095f5b9571087ba4146cb163b1648c4d063045e3d9c","sha256:6cc6e3e6d18e62e1525851e1370b8a0b8bd5219866707ee5fd60313c426f63e3"],"state_sha256":"8253bfbf37c9945c288c52a14892415e7fbb9a662413613cd7a168cbde7df64f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aoawW3EWUPCM4lZZyXsgX/nvEyIu7XLazbildINqEuzBtf2ZDc5gY5eMPwm53+GnWJMKd2HyLdeAGclVd2LpDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T04:42:37.531779Z","bundle_sha256":"400a1c039d53a82c6ec5a32848d72f2deeffc26d4a6fb9e4e58309cd146c9113"}}