{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:DY47GHX22TCGNL3KOIVITTHYKU","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":"04bd00a3c2bd9653b4a0b68f291b7eb89f48d928a2c141f41d08a1512a3e9ef9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-04T22:06:45Z","title_canon_sha256":"f41ac67639d251e26265cfd4127743a8caeb4cbabac887d1e35af0503bba6ec4"},"schema_version":"1.0","source":{"id":"1104.0698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.0698","created_at":"2026-05-18T02:02:38Z"},{"alias_kind":"arxiv_version","alias_value":"1104.0698v1","created_at":"2026-05-18T02:02:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0698","created_at":"2026-05-18T02:02:38Z"},{"alias_kind":"pith_short_12","alias_value":"DY47GHX22TCG","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DY47GHX22TCGNL3K","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DY47GHX2","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:de5bee9cce3a5656de0adf78eac69885445916416d90047ba2730b5a2211dc3c","target":"graph","created_at":"2026-05-18T02:02:38Z","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":"No significant color differences are found between normal and barred spirals over the range of Hubble stages a - ab - b - bc. Furthermore, no significant difference is seen between the luminosity distributions of normal and barred galaxies over the same range of Hubble stages. However, SBc galaxies are found to be systematically fainter than Sc galaxies at 99% confidence. The observation that normal and barred spirals with Hubble stages a - ab - b - bc have indistinguishable intrinsic colors hints at the possibility that the bars in such spiral galaxies might be ephemeral structures. Finally, ","authors_text":"Sidney van den Bergh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-04T22:06:45Z","title":"How Different are Normal and Barred Spirals?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0698","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:bb4e1d6cc6fcacc41ce7e43d9a6b1e60bc2b8fe39b60635311f0a18a63a46d23","target":"record","created_at":"2026-05-18T02:02:38Z","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":"04bd00a3c2bd9653b4a0b68f291b7eb89f48d928a2c141f41d08a1512a3e9ef9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-04-04T22:06:45Z","title_canon_sha256":"f41ac67639d251e26265cfd4127743a8caeb4cbabac887d1e35af0503bba6ec4"},"schema_version":"1.0","source":{"id":"1104.0698","kind":"arxiv","version":1}},"canonical_sha256":"1e39f31efad4c466af6a722a89ccf855123fa04e256048a2300522919eda57bd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e39f31efad4c466af6a722a89ccf855123fa04e256048a2300522919eda57bd","first_computed_at":"2026-05-18T02:02:38.157918Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:38.157918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZrWhbpKshST/unSrbs0kT3vPWIvpTcDAy4M282dniAWa0ALxAd+qMKCSwKX3/dOH3ABgKHJYZo69oPDLx5VsCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:38.158698Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.0698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb4e1d6cc6fcacc41ce7e43d9a6b1e60bc2b8fe39b60635311f0a18a63a46d23","sha256:de5bee9cce3a5656de0adf78eac69885445916416d90047ba2730b5a2211dc3c"],"state_sha256":"cc7715bcf717b656b93822932be95643c7ea54c7aac8797e162f905ab0c9eb57"}