{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:OHGXIH5SPUYKSXJYN6VORAZH4D","short_pith_number":"pith:OHGXIH5S","canonical_record":{"source":{"id":"1103.0990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-04T22:07:22Z","cross_cats_sorted":[],"title_canon_sha256":"ca6872468ff11c2a186571829aa2be600fec88fa8b51224606c523702d6a9d92","abstract_canon_sha256":"a54943e8e3127b85bf20df126b9b030320b34e6dbe97f0e727e7b2f449c5c79e"},"schema_version":"1.0"},"canonical_sha256":"71cd741fb27d30a95d386faae88327e0c7dafc85e5f9e161e2bd5638fbe964c4","source":{"kind":"arxiv","id":"1103.0990","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.0990","created_at":"2026-05-18T02:02:59Z"},{"alias_kind":"arxiv_version","alias_value":"1103.0990v1","created_at":"2026-05-18T02:02:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0990","created_at":"2026-05-18T02:02:59Z"},{"alias_kind":"pith_short_12","alias_value":"OHGXIH5SPUYK","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"OHGXIH5SPUYKSXJY","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"OHGXIH5S","created_at":"2026-05-18T12:26:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:OHGXIH5SPUYKSXJYN6VORAZH4D","target":"record","payload":{"canonical_record":{"source":{"id":"1103.0990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-04T22:07:22Z","cross_cats_sorted":[],"title_canon_sha256":"ca6872468ff11c2a186571829aa2be600fec88fa8b51224606c523702d6a9d92","abstract_canon_sha256":"a54943e8e3127b85bf20df126b9b030320b34e6dbe97f0e727e7b2f449c5c79e"},"schema_version":"1.0"},"canonical_sha256":"71cd741fb27d30a95d386faae88327e0c7dafc85e5f9e161e2bd5638fbe964c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:59.562987Z","signature_b64":"ONttQzblKlO+vsEIcjrVZG64IshZrOHnE3lea8gMYWG2bJP9fBdWQhjlo1pAhUqCreBXLketH9J0aFVjRhQpDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"71cd741fb27d30a95d386faae88327e0c7dafc85e5f9e161e2bd5638fbe964c4","last_reissued_at":"2026-05-18T02:02:59.562051Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:59.562051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.0990","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":"2026-05-18T02:02:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k0pfBLMpbvTaF69/fOCPhnrJmzi0/NcNQpa7CVabFQGhdxrYwSlhq66WctDI1qU3JwjzAhyEuJF3ZfhslMI6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:18:59.125514Z"},"content_sha256":"f48b03b41b30aa71d564555b4b5f1b2f00365408a0d95e0b9305274c366ebff4","schema_version":"1.0","event_id":"sha256:f48b03b41b30aa71d564555b4b5f1b2f00365408a0d95e0b9305274c366ebff4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:OHGXIH5SPUYKSXJYN6VORAZH4D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HI Content and Optical Properties of Field Galaxies from the ALFALFA Survey. II. Multivariate Analysis of a Galaxy Sample in Low Density Environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Martin, J. M. Solanes, M. C. Toribio, M. P. Haynes, R. Giovanelli","submitted_at":"2011-03-04T22:07:22Z","abstract_excerpt":"This is the second paper of two reporting results from a study of the HI content and stellar properties of nearby galaxies detected by the Arecibo Legacy Fast ALFA blind 21-cm line survey and the Sloan Digital Sky Survey in a 2160 deg^2 region covered by both surveys. We apply strategies of multivariate data analysis to a complete HI flux-limited subset of 1624 objects extracted from the control sample of HI emitters assembled by Toribio et al. (2011a) in order to: i) investigate the correlation structure of the space defined by an extensive set of observables describing gas-rich systems; ii) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0990","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":"2026-05-18T02:02:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RiFeeHHvpyau7VOrnaEELizS6FEWy4slERyIhnGqu/ZukdrUPhF2hOeXbiFdaPOGI8YSefTBHknEosB4onqBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:18:59.125861Z"},"content_sha256":"23ee1618f1a1dad04824f3a7327e847283363502e22500a9040b0fd349064979","schema_version":"1.0","event_id":"sha256:23ee1618f1a1dad04824f3a7327e847283363502e22500a9040b0fd349064979"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OHGXIH5SPUYKSXJYN6VORAZH4D/bundle.json","state_url":"https://pith.science/pith/OHGXIH5SPUYKSXJYN6VORAZH4D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OHGXIH5SPUYKSXJYN6VORAZH4D/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":"2026-06-01T20:18:59Z","links":{"resolver":"https://pith.science/pith/OHGXIH5SPUYKSXJYN6VORAZH4D","bundle":"https://pith.science/pith/OHGXIH5SPUYKSXJYN6VORAZH4D/bundle.json","state":"https://pith.science/pith/OHGXIH5SPUYKSXJYN6VORAZH4D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OHGXIH5SPUYKSXJYN6VORAZH4D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:OHGXIH5SPUYKSXJYN6VORAZH4D","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":"a54943e8e3127b85bf20df126b9b030320b34e6dbe97f0e727e7b2f449c5c79e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-04T22:07:22Z","title_canon_sha256":"ca6872468ff11c2a186571829aa2be600fec88fa8b51224606c523702d6a9d92"},"schema_version":"1.0","source":{"id":"1103.0990","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.0990","created_at":"2026-05-18T02:02:59Z"},{"alias_kind":"arxiv_version","alias_value":"1103.0990v1","created_at":"2026-05-18T02:02:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0990","created_at":"2026-05-18T02:02:59Z"},{"alias_kind":"pith_short_12","alias_value":"OHGXIH5SPUYK","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_16","alias_value":"OHGXIH5SPUYKSXJY","created_at":"2026-05-18T12:26:37Z"},{"alias_kind":"pith_short_8","alias_value":"OHGXIH5S","created_at":"2026-05-18T12:26:37Z"}],"graph_snapshots":[{"event_id":"sha256:23ee1618f1a1dad04824f3a7327e847283363502e22500a9040b0fd349064979","target":"graph","created_at":"2026-05-18T02:02:59Z","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":"This is the second paper of two reporting results from a study of the HI content and stellar properties of nearby galaxies detected by the Arecibo Legacy Fast ALFA blind 21-cm line survey and the Sloan Digital Sky Survey in a 2160 deg^2 region covered by both surveys. We apply strategies of multivariate data analysis to a complete HI flux-limited subset of 1624 objects extracted from the control sample of HI emitters assembled by Toribio et al. (2011a) in order to: i) investigate the correlation structure of the space defined by an extensive set of observables describing gas-rich systems; ii) ","authors_text":"A. Martin, J. M. Solanes, M. C. Toribio, M. P. Haynes, R. Giovanelli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-04T22:07:22Z","title":"HI Content and Optical Properties of Field Galaxies from the ALFALFA Survey. II. Multivariate Analysis of a Galaxy Sample in Low Density Environments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0990","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:f48b03b41b30aa71d564555b4b5f1b2f00365408a0d95e0b9305274c366ebff4","target":"record","created_at":"2026-05-18T02:02:59Z","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":"a54943e8e3127b85bf20df126b9b030320b34e6dbe97f0e727e7b2f449c5c79e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-04T22:07:22Z","title_canon_sha256":"ca6872468ff11c2a186571829aa2be600fec88fa8b51224606c523702d6a9d92"},"schema_version":"1.0","source":{"id":"1103.0990","kind":"arxiv","version":1}},"canonical_sha256":"71cd741fb27d30a95d386faae88327e0c7dafc85e5f9e161e2bd5638fbe964c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71cd741fb27d30a95d386faae88327e0c7dafc85e5f9e161e2bd5638fbe964c4","first_computed_at":"2026-05-18T02:02:59.562051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:59.562051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ONttQzblKlO+vsEIcjrVZG64IshZrOHnE3lea8gMYWG2bJP9fBdWQhjlo1pAhUqCreBXLketH9J0aFVjRhQpDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:59.562987Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.0990","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f48b03b41b30aa71d564555b4b5f1b2f00365408a0d95e0b9305274c366ebff4","sha256:23ee1618f1a1dad04824f3a7327e847283363502e22500a9040b0fd349064979"],"state_sha256":"3e6388cb0d13b4535dfe585d17b0a5f369e72da20057afbe95c431a0730ba364"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b0bIdu9ZeZijlh9gipFY/QEoIbypfbBhE4ErjAumMqW7w6w/SDwBEbJ1eOnWnhl5OptD3TNVKaKWa1rgbYiuBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:18:59.127781Z","bundle_sha256":"1d3f4e05a7a5cfe6fb54a4d75ed3e8b8528927ebe99cc9351146b48c6fabf2f1"}}