{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:LZTHBXTUAR3GT2R3Q7KQCQW5EY","short_pith_number":"pith:LZTHBXTU","canonical_record":{"source":{"id":"1202.1026","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:35:39Z","cross_cats_sorted":[],"title_canon_sha256":"f5725eaff1ba0169cc15470ba75fcb5ae81428c760cbc8ae777305517abe52b6","abstract_canon_sha256":"dae54117803446459b896a615d71460e29bc822609dd43b993ede6fe9bfd6167"},"schema_version":"1.0"},"canonical_sha256":"5e6670de74047669ea3b87d50142dd2622f333ae44218f6b9ebd91dd643061ea","source":{"kind":"arxiv","id":"1202.1026","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1026","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1026v1","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1026","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"pith_short_12","alias_value":"LZTHBXTUAR3G","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LZTHBXTUAR3GT2R3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LZTHBXTU","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:LZTHBXTUAR3GT2R3Q7KQCQW5EY","target":"record","payload":{"canonical_record":{"source":{"id":"1202.1026","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:35:39Z","cross_cats_sorted":[],"title_canon_sha256":"f5725eaff1ba0169cc15470ba75fcb5ae81428c760cbc8ae777305517abe52b6","abstract_canon_sha256":"dae54117803446459b896a615d71460e29bc822609dd43b993ede6fe9bfd6167"},"schema_version":"1.0"},"canonical_sha256":"5e6670de74047669ea3b87d50142dd2622f333ae44218f6b9ebd91dd643061ea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:05.379551Z","signature_b64":"ibj8sc7U/xolhnpA8I+CXJiDXTBDSxozpSSLsQHbpvAI5Wa/XtPxFbYvEUapLMXQjPCtKLJLD6rYWDJ/WvKOBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5e6670de74047669ea3b87d50142dd2622f333ae44218f6b9ebd91dd643061ea","last_reissued_at":"2026-05-18T04:03:05.378825Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:05.378825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.1026","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":"2026-05-18T04:03:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NglLe+ehgpGKP5jwWOfUdjJuddnzwdHt4MF5Uvf2ynXLl89RNjCn2KJbZnCxDEEb70Tm7WJEt4aU/un/i/C2AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:12:19.964279Z"},"content_sha256":"cdabad4e4fba49ca83f9c0f9c484478cab50ec33a312bfd91b79b723eefbeba9","schema_version":"1.0","event_id":"sha256:cdabad4e4fba49ca83f9c0f9c484478cab50ec33a312bfd91b79b723eefbeba9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:LZTHBXTUAR3GT2R3Q7KQCQW5EY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Practices in Code Discoverability","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alice Allen, Lior Shamir, Peter Teuben, Robert J. Nemiroff","submitted_at":"2012-02-06T01:35:39Z","abstract_excerpt":"Much of scientific progress now hinges on the reliability, falsifiability and reproducibility of computer source codes. Astrophysics in particular is a discipline that today leads other sciences in making useful scientific components freely available online, including data, abstracts, preprints, and fully published papers, yet even today many astrophysics source codes remain hidden from public view. We review the importance and history of source codes in astrophysics and previous efforts to develop ways in which information about astrophysics codes can be shared. We also discuss why some scien"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1026","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":"2026-05-18T04:03:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7oA/ADF1+DfF4aq6lAQZU4KCKqQ2MRSsQxq3uYerQSZySGF5C7nJL3i6tqt6D+PvKoE0xavix9m3SMiT8R2FCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:12:19.964671Z"},"content_sha256":"58b83db488e861de4318678b16f06f3a7ec49876a499f145e2e0f3fe8b8a2881","schema_version":"1.0","event_id":"sha256:58b83db488e861de4318678b16f06f3a7ec49876a499f145e2e0f3fe8b8a2881"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY/bundle.json","state_url":"https://pith.science/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY/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":"2026-05-27T22:12:19Z","links":{"resolver":"https://pith.science/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY","bundle":"https://pith.science/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY/bundle.json","state":"https://pith.science/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LZTHBXTUAR3GT2R3Q7KQCQW5EY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LZTHBXTUAR3GT2R3Q7KQCQW5EY","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":"dae54117803446459b896a615d71460e29bc822609dd43b993ede6fe9bfd6167","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:35:39Z","title_canon_sha256":"f5725eaff1ba0169cc15470ba75fcb5ae81428c760cbc8ae777305517abe52b6"},"schema_version":"1.0","source":{"id":"1202.1026","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1026","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1026v1","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1026","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"pith_short_12","alias_value":"LZTHBXTUAR3G","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LZTHBXTUAR3GT2R3","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LZTHBXTU","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:58b83db488e861de4318678b16f06f3a7ec49876a499f145e2e0f3fe8b8a2881","target":"graph","created_at":"2026-05-18T04:03:05Z","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":"Much of scientific progress now hinges on the reliability, falsifiability and reproducibility of computer source codes. Astrophysics in particular is a discipline that today leads other sciences in making useful scientific components freely available online, including data, abstracts, preprints, and fully published papers, yet even today many astrophysics source codes remain hidden from public view. We review the importance and history of source codes in astrophysics and previous efforts to develop ways in which information about astrophysics codes can be shared. We also discuss why some scien","authors_text":"Alice Allen, Lior Shamir, Peter Teuben, Robert J. Nemiroff","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:35:39Z","title":"Practices in Code Discoverability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1026","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:cdabad4e4fba49ca83f9c0f9c484478cab50ec33a312bfd91b79b723eefbeba9","target":"record","created_at":"2026-05-18T04:03:05Z","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":"dae54117803446459b896a615d71460e29bc822609dd43b993ede6fe9bfd6167","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:35:39Z","title_canon_sha256":"f5725eaff1ba0169cc15470ba75fcb5ae81428c760cbc8ae777305517abe52b6"},"schema_version":"1.0","source":{"id":"1202.1026","kind":"arxiv","version":1}},"canonical_sha256":"5e6670de74047669ea3b87d50142dd2622f333ae44218f6b9ebd91dd643061ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e6670de74047669ea3b87d50142dd2622f333ae44218f6b9ebd91dd643061ea","first_computed_at":"2026-05-18T04:03:05.378825Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:05.378825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ibj8sc7U/xolhnpA8I+CXJiDXTBDSxozpSSLsQHbpvAI5Wa/XtPxFbYvEUapLMXQjPCtKLJLD6rYWDJ/WvKOBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:05.379551Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.1026","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cdabad4e4fba49ca83f9c0f9c484478cab50ec33a312bfd91b79b723eefbeba9","sha256:58b83db488e861de4318678b16f06f3a7ec49876a499f145e2e0f3fe8b8a2881"],"state_sha256":"e6c18942b841212fe5f44ea5d346dc01f65610d2c68aa0975787b2cb9eff3b55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w77TdDo2aUGBk2bUqt4iVsBRxD73rxyCKlqVdNJBpIe/lCcP0lhI17OFoKS5hi6Z3MjnU4pul0QrU1Gc8zYVAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:12:19.966796Z","bundle_sha256":"53af1c2bda1104ab631eb67bf466e5fe2ef509f70564e70bf6fbb14bbf3f3deb"}}