{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:CFKDFY7SA3OAXVKBD6CONUK2CU","short_pith_number":"pith:CFKDFY7S","canonical_record":{"source":{"id":"1202.1028","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:40:09Z","cross_cats_sorted":[],"title_canon_sha256":"b0860a17b15d0ac8015e3e6f1941c36056c813eb18d8270986d69193c9fe994c","abstract_canon_sha256":"99b491c7de79d1b4d7d5a2b0bf33e2574cfeb186f41bfee936b70826ff6d70f0"},"schema_version":"1.0"},"canonical_sha256":"115432e3f206dc0bd5411f84e6d15a15006cb27ac946d092c9ea38a573050294","source":{"kind":"arxiv","id":"1202.1028","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1028","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1028v1","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1028","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"pith_short_12","alias_value":"CFKDFY7SA3OA","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CFKDFY7SA3OAXVKB","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CFKDFY7S","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:CFKDFY7SA3OAXVKBD6CONUK2CU","target":"record","payload":{"canonical_record":{"source":{"id":"1202.1028","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:40:09Z","cross_cats_sorted":[],"title_canon_sha256":"b0860a17b15d0ac8015e3e6f1941c36056c813eb18d8270986d69193c9fe994c","abstract_canon_sha256":"99b491c7de79d1b4d7d5a2b0bf33e2574cfeb186f41bfee936b70826ff6d70f0"},"schema_version":"1.0"},"canonical_sha256":"115432e3f206dc0bd5411f84e6d15a15006cb27ac946d092c9ea38a573050294","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:05.360306Z","signature_b64":"Mos5iQcl9zvMWSFSrpWe1mI6tk3zM5jNgRzmdBNhT9n9MlSMXGpVYUt1PU6KhyACCLulC3659TRM5VjAdfplBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"115432e3f206dc0bd5411f84e6d15a15006cb27ac946d092c9ea38a573050294","last_reissued_at":"2026-05-18T04:03:05.359584Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:05.359584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.1028","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":"gL3WGZ20597SrdeWF7M9qMVu9cCPSArwPy7TO85pYDHYRA68nv+uKfDqZ7YQ7MoK1PXwaSTM9sg7dY1SUPQ6Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:47:02.969031Z"},"content_sha256":"156ee5a68878ed4ea245b02086944f3481979c915ce73f86e6aaaf3902740d8e","schema_version":"1.0","event_id":"sha256:156ee5a68878ed4ea245b02086944f3481979c915ce73f86e6aaaf3902740d8e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:CFKDFY7SA3OAXVKBD6CONUK2CU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Practices in Code Discoverability: Astrophysics Source Code Library","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":"2012-02-06T01:40:09Z","abstract_excerpt":"Here we describe the Astrophysics Source Code Library (ASCL), which takes an active approach to sharing astrophysical source code. ASCL's editor seeks out both new and old peer-reviewed papers that describe methods or experiments that involve the development or use of source code, and adds entries for the found codes to the library. This approach ensures that source codes are added without requiring authors to actively submit them, resulting in a comprehensive listing that covers a significant number of the astrophysics source codes used in peer-reviewed studies. The ASCL now has over 340 code"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1028","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":"WzfWuUeFoswZtgw1PMDvItwuCeSheOxSvWbuGYjJzv0qbgy9u5kumqOYl4PJTgCKrevo5kPFCED7awiO5IABAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:47:02.969647Z"},"content_sha256":"cde5f9beab52f67a8c4cc98486acc6d226d24d7b05e7351979c69a14d7edf995","schema_version":"1.0","event_id":"sha256:cde5f9beab52f67a8c4cc98486acc6d226d24d7b05e7351979c69a14d7edf995"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CFKDFY7SA3OAXVKBD6CONUK2CU/bundle.json","state_url":"https://pith.science/pith/CFKDFY7SA3OAXVKBD6CONUK2CU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CFKDFY7SA3OAXVKBD6CONUK2CU/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":"2026-05-27T15:47:02Z","links":{"resolver":"https://pith.science/pith/CFKDFY7SA3OAXVKBD6CONUK2CU","bundle":"https://pith.science/pith/CFKDFY7SA3OAXVKBD6CONUK2CU/bundle.json","state":"https://pith.science/pith/CFKDFY7SA3OAXVKBD6CONUK2CU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CFKDFY7SA3OAXVKBD6CONUK2CU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CFKDFY7SA3OAXVKBD6CONUK2CU","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":"99b491c7de79d1b4d7d5a2b0bf33e2574cfeb186f41bfee936b70826ff6d70f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:40:09Z","title_canon_sha256":"b0860a17b15d0ac8015e3e6f1941c36056c813eb18d8270986d69193c9fe994c"},"schema_version":"1.0","source":{"id":"1202.1028","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1028","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1028v1","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1028","created_at":"2026-05-18T04:03:05Z"},{"alias_kind":"pith_short_12","alias_value":"CFKDFY7SA3OA","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CFKDFY7SA3OAXVKB","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CFKDFY7S","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:cde5f9beab52f67a8c4cc98486acc6d226d24d7b05e7351979c69a14d7edf995","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":"Here we describe the Astrophysics Source Code Library (ASCL), which takes an active approach to sharing astrophysical source code. ASCL's editor seeks out both new and old peer-reviewed papers that describe methods or experiments that involve the development or use of source code, and adds entries for the found codes to the library. This approach ensures that source codes are added without requiring authors to actively submit them, resulting in a comprehensive listing that covers a significant number of the astrophysics source codes used in peer-reviewed studies. The ASCL now has over 340 code","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":"2012-02-06T01:40:09Z","title":"Practices in Code Discoverability: Astrophysics Source Code Library"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1028","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":"sha256:156ee5a68878ed4ea245b02086944f3481979c915ce73f86e6aaaf3902740d8e","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":"99b491c7de79d1b4d7d5a2b0bf33e2574cfeb186f41bfee936b70826ff6d70f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-02-06T01:40:09Z","title_canon_sha256":"b0860a17b15d0ac8015e3e6f1941c36056c813eb18d8270986d69193c9fe994c"},"schema_version":"1.0","source":{"id":"1202.1028","kind":"arxiv","version":1}},"canonical_sha256":"115432e3f206dc0bd5411f84e6d15a15006cb27ac946d092c9ea38a573050294","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"115432e3f206dc0bd5411f84e6d15a15006cb27ac946d092c9ea38a573050294","first_computed_at":"2026-05-18T04:03:05.359584Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:05.359584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mos5iQcl9zvMWSFSrpWe1mI6tk3zM5jNgRzmdBNhT9n9MlSMXGpVYUt1PU6KhyACCLulC3659TRM5VjAdfplBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:05.360306Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.1028","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:156ee5a68878ed4ea245b02086944f3481979c915ce73f86e6aaaf3902740d8e","sha256:cde5f9beab52f67a8c4cc98486acc6d226d24d7b05e7351979c69a14d7edf995"],"state_sha256":"63d99bd3db756b7685678d74695e7bae8a4fcdf23ac50aebbfa723c9aac15f47"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"crbIh1WGOnxdo2WL1BdRSH/Ho3c+btF86SfkjKgvLXtYQei6h0ds7F/jizGCSu7ws5E95/7RMDrkyWe6UZOLDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:47:02.973307Z","bundle_sha256":"a1867481d69c190662e10d634d39081700b710e3e715babea879b01a5a407e96"}}