{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:T55XOYTYZI262A7ZCVWCNYYK5Y","short_pith_number":"pith:T55XOYTY","canonical_record":{"source":{"id":"0906.2178","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-11T18:47:13Z","cross_cats_sorted":[],"title_canon_sha256":"8ea945692b0b44db33fedb6f5898b06e32c5166a94f80c29d01403ef152d3683","abstract_canon_sha256":"3b7e723551eb6e7b687ac88ab3a46f7140958c547db00b09d3cbc052d0f7f63a"},"schema_version":"1.0"},"canonical_sha256":"9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac","source":{"kind":"arxiv","id":"0906.2178","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.2178","created_at":"2026-05-18T02:13:20Z"},{"alias_kind":"arxiv_version","alias_value":"0906.2178v1","created_at":"2026-05-18T02:13:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.2178","created_at":"2026-05-18T02:13:20Z"},{"alias_kind":"pith_short_12","alias_value":"T55XOYTYZI26","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"T55XOYTYZI262A7Z","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"T55XOYTY","created_at":"2026-05-18T12:26:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:T55XOYTYZI262A7ZCVWCNYYK5Y","target":"record","payload":{"canonical_record":{"source":{"id":"0906.2178","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-11T18:47:13Z","cross_cats_sorted":[],"title_canon_sha256":"8ea945692b0b44db33fedb6f5898b06e32c5166a94f80c29d01403ef152d3683","abstract_canon_sha256":"3b7e723551eb6e7b687ac88ab3a46f7140958c547db00b09d3cbc052d0f7f63a"},"schema_version":"1.0"},"canonical_sha256":"9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:20.665435Z","signature_b64":"1dyQUyEJxGO7NMNjwDH5nKmEl0Hvz5+2rswxdBxxNFzWg79GoV7XD9hBYZaScGNlF/o5SCX25FgJHQO1HKxSDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac","last_reissued_at":"2026-05-18T02:13:20.664874Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:20.664874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0906.2178","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":"2026-05-18T02:13:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1b9bRCdM4FCs4v16c5dwn71oyVMS4Cs2OkPnh6i1pg5fjrVl8oDAgvvunTJydgNAFOtmc4XrVisldRN1axi1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:31:55.027419Z"},"content_sha256":"b07f7a6a6ab6ec87adfe28525c7af5cc2dc91d221792df888cafa4530f22c38c","schema_version":"1.0","event_id":"sha256:b07f7a6a6ab6ec87adfe28525c7af5cc2dc91d221792df888cafa4530f22c38c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:T55XOYTYZI262A7ZCVWCNYYK5Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Arecibo Legacy Fast ALFA Survey: IX. The Leo Region HI Catalog, Group Membership and the HI Mass Function for the Leo I Group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A.M. Martin, A. Saintonge, B.R. Kent, I.D. Karachentsev, M.P. Haynes, R. Giovanelli, S. Stierwalt, V.E. Karachentseva","submitted_at":"2009-06-11T18:47:13Z","abstract_excerpt":"We present the catalog of HI sources extracted from the ongoing Arecibo Legacy Fast ALFA (ALFALFA) extragalactic HI line survey, found within the sky region bounded by 9h36m < RA < 11h36m and +08deg < DEC < +12deg. The HI catalog presented here for this 118-deg^2 region is combined with ones derived from surrounding regions also covered by the ALFALFA survey to examine the large scale structure in the complex Leo region. Because of the combination of wide sky coverage and superior sensitivity, spatial and spectral resolution, the ALFALFA HI catalog of the Leo region improves significantly on t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.2178","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":"2026-05-18T02:13:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k5CS5cfPchewWY6YGz2oLcoAIT+9r0robu4RUTbt0H/2xaxRzpQORapvrWolTeu7+ETgT9hKVq4rLU4m+5zcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:31:55.028121Z"},"content_sha256":"0ac9a180578afda5fa004b2f41a0636e6cf12f511bfdd3ef2ab499081ec815fa","schema_version":"1.0","event_id":"sha256:0ac9a180578afda5fa004b2f41a0636e6cf12f511bfdd3ef2ab499081ec815fa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T55XOYTYZI262A7ZCVWCNYYK5Y/bundle.json","state_url":"https://pith.science/pith/T55XOYTYZI262A7ZCVWCNYYK5Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T55XOYTYZI262A7ZCVWCNYYK5Y/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":"2026-05-25T23:31:55Z","links":{"resolver":"https://pith.science/pith/T55XOYTYZI262A7ZCVWCNYYK5Y","bundle":"https://pith.science/pith/T55XOYTYZI262A7ZCVWCNYYK5Y/bundle.json","state":"https://pith.science/pith/T55XOYTYZI262A7ZCVWCNYYK5Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T55XOYTYZI262A7ZCVWCNYYK5Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:T55XOYTYZI262A7ZCVWCNYYK5Y","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":"3b7e723551eb6e7b687ac88ab3a46f7140958c547db00b09d3cbc052d0f7f63a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-11T18:47:13Z","title_canon_sha256":"8ea945692b0b44db33fedb6f5898b06e32c5166a94f80c29d01403ef152d3683"},"schema_version":"1.0","source":{"id":"0906.2178","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.2178","created_at":"2026-05-18T02:13:20Z"},{"alias_kind":"arxiv_version","alias_value":"0906.2178v1","created_at":"2026-05-18T02:13:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.2178","created_at":"2026-05-18T02:13:20Z"},{"alias_kind":"pith_short_12","alias_value":"T55XOYTYZI26","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"T55XOYTYZI262A7Z","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"T55XOYTY","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:0ac9a180578afda5fa004b2f41a0636e6cf12f511bfdd3ef2ab499081ec815fa","target":"graph","created_at":"2026-05-18T02:13:20Z","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 present the catalog of HI sources extracted from the ongoing Arecibo Legacy Fast ALFA (ALFALFA) extragalactic HI line survey, found within the sky region bounded by 9h36m < RA < 11h36m and +08deg < DEC < +12deg. The HI catalog presented here for this 118-deg^2 region is combined with ones derived from surrounding regions also covered by the ALFALFA survey to examine the large scale structure in the complex Leo region. Because of the combination of wide sky coverage and superior sensitivity, spatial and spectral resolution, the ALFALFA HI catalog of the Leo region improves significantly on t","authors_text":"A.M. Martin, A. Saintonge, B.R. Kent, I.D. Karachentsev, M.P. Haynes, R. Giovanelli, S. Stierwalt, V.E. Karachentseva","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-11T18:47:13Z","title":"The Arecibo Legacy Fast ALFA Survey: IX. The Leo Region HI Catalog, Group Membership and the HI Mass Function for the Leo I Group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.2178","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:b07f7a6a6ab6ec87adfe28525c7af5cc2dc91d221792df888cafa4530f22c38c","target":"record","created_at":"2026-05-18T02:13:20Z","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":"3b7e723551eb6e7b687ac88ab3a46f7140958c547db00b09d3cbc052d0f7f63a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-11T18:47:13Z","title_canon_sha256":"8ea945692b0b44db33fedb6f5898b06e32c5166a94f80c29d01403ef152d3683"},"schema_version":"1.0","source":{"id":"0906.2178","kind":"arxiv","version":1}},"canonical_sha256":"9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f7b776278ca35ed03f9156c26e30aee300629423501c2b410c6d3d2938ec3ac","first_computed_at":"2026-05-18T02:13:20.664874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:20.664874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1dyQUyEJxGO7NMNjwDH5nKmEl0Hvz5+2rswxdBxxNFzWg79GoV7XD9hBYZaScGNlF/o5SCX25FgJHQO1HKxSDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:20.665435Z","signed_message":"canonical_sha256_bytes"},"source_id":"0906.2178","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b07f7a6a6ab6ec87adfe28525c7af5cc2dc91d221792df888cafa4530f22c38c","sha256:0ac9a180578afda5fa004b2f41a0636e6cf12f511bfdd3ef2ab499081ec815fa"],"state_sha256":"521eef9a152e54ade36b2ec5e8f4c67f209378c617c2e7d6f396a9c3f67881d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KQCw0UbbEjXPpB/LIhOVyeSx6R4r3ES+YdfHN+NlNURAJgAxVaBAIwwojFTskZr8xdQi8nSstDItE09TkNiSBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:31:55.031430Z","bundle_sha256":"aea5dae43d6ba24c41dbf0cf925972f059bd7e098a798ae01e035632aff10dc5"}}