{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:GGXLY36LQPH3HTSFNF3AEYUG54","short_pith_number":"pith:GGXLY36L","canonical_record":{"source":{"id":"1004.5393","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-04-29T20:23:02Z","cross_cats_sorted":[],"title_canon_sha256":"b4355c4a9f9d82101ca7c8ca3133ad6b08661ecf6113b3a2a5f59d45f1ef5b32","abstract_canon_sha256":"1ca9093e179bc8ea6bed94e99473128e0a52fd082d6041aae49b8521bf7f7069"},"schema_version":"1.0"},"canonical_sha256":"31aebc6fcb83cfb3ce456976026286ef320e65ef27eecf9bb94d7ab233357425","source":{"kind":"arxiv","id":"1004.5393","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.5393","created_at":"2026-05-18T02:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"1004.5393v1","created_at":"2026-05-18T02:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.5393","created_at":"2026-05-18T02:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"GGXLY36LQPH3","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GGXLY36LQPH3HTSF","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GGXLY36L","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:GGXLY36LQPH3HTSFNF3AEYUG54","target":"record","payload":{"canonical_record":{"source":{"id":"1004.5393","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-04-29T20:23:02Z","cross_cats_sorted":[],"title_canon_sha256":"b4355c4a9f9d82101ca7c8ca3133ad6b08661ecf6113b3a2a5f59d45f1ef5b32","abstract_canon_sha256":"1ca9093e179bc8ea6bed94e99473128e0a52fd082d6041aae49b8521bf7f7069"},"schema_version":"1.0"},"canonical_sha256":"31aebc6fcb83cfb3ce456976026286ef320e65ef27eecf9bb94d7ab233357425","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:07:44.830648Z","signature_b64":"hxu8gM082NiQaGJoOO+lfA7JWJHHpHnjnd/6nXVLIZrfUIIGrMJaSeGjkqREQGAsZuOXPqGbA7tOeQEmyMwjAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"31aebc6fcb83cfb3ce456976026286ef320e65ef27eecf9bb94d7ab233357425","last_reissued_at":"2026-05-18T02:07:44.829922Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:07:44.829922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1004.5393","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":"2026-05-18T02:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jWXvBTgFDoccYmYz4nbNTQ5eCtFgJ5sX1rGgiOc3FC7j2xlY1NE6D9q0JW8EIeBUUzMIWUzl/A28ZjdBaNKoAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:25:40.742581Z"},"content_sha256":"7bbc19c29c64e96584fedbed94bcd08dbe02e33a80a463d5525fd21279e83fbe","schema_version":"1.0","event_id":"sha256:7bbc19c29c64e96584fedbed94bcd08dbe02e33a80a463d5525fd21279e83fbe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:GGXLY36LQPH3HTSFNF3AEYUG54","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bulges Of Nearby Galaxies With Spitzer: Scaling Relations in Pseudobulges and Classical Bulges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"David B. Fisher, Niv Drory","submitted_at":"2010-04-29T20:23:02Z","abstract_excerpt":"We investigate scaling relations of bulges using bulge-disk decompositions at 3.6 micron and present bulge classifications for 173 E-Sd galaxies within 20 Mpc. Pseudobulges and classical bulges are identified using Sersic index, HST morphology, and star formation activity (traced by 8 micron emission). In the near-IR pseudobulges have n_b<2 and classical bulges have n_b>2, as found in the optical. Sersic index and morphology are essentially equivalent properties for bulge classification purposes.  We confirm, using a much more robust sample, that the Sersic index of pseudobulges is uncorrelate"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.5393","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":"2026-05-18T02:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HIsThoYahgBz2oRP3pW54NQrbCRgmRehZjBUTF34nmgw783aLe0Mn4aMoz+WrmLuxatmzE4BKmw+Kt/ao6gBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:25:40.742928Z"},"content_sha256":"e9ded486405e87bb79a20618fb6b4c313690142ce589af1d9fc1f193aec5b9af","schema_version":"1.0","event_id":"sha256:e9ded486405e87bb79a20618fb6b4c313690142ce589af1d9fc1f193aec5b9af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GGXLY36LQPH3HTSFNF3AEYUG54/bundle.json","state_url":"https://pith.science/pith/GGXLY36LQPH3HTSFNF3AEYUG54/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GGXLY36LQPH3HTSFNF3AEYUG54/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":"2026-06-05T14:25:40Z","links":{"resolver":"https://pith.science/pith/GGXLY36LQPH3HTSFNF3AEYUG54","bundle":"https://pith.science/pith/GGXLY36LQPH3HTSFNF3AEYUG54/bundle.json","state":"https://pith.science/pith/GGXLY36LQPH3HTSFNF3AEYUG54/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GGXLY36LQPH3HTSFNF3AEYUG54/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GGXLY36LQPH3HTSFNF3AEYUG54","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":"1ca9093e179bc8ea6bed94e99473128e0a52fd082d6041aae49b8521bf7f7069","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-04-29T20:23:02Z","title_canon_sha256":"b4355c4a9f9d82101ca7c8ca3133ad6b08661ecf6113b3a2a5f59d45f1ef5b32"},"schema_version":"1.0","source":{"id":"1004.5393","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.5393","created_at":"2026-05-18T02:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"1004.5393v1","created_at":"2026-05-18T02:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.5393","created_at":"2026-05-18T02:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"GGXLY36LQPH3","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GGXLY36LQPH3HTSF","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GGXLY36L","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:e9ded486405e87bb79a20618fb6b4c313690142ce589af1d9fc1f193aec5b9af","target":"graph","created_at":"2026-05-18T02:07:44Z","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 investigate scaling relations of bulges using bulge-disk decompositions at 3.6 micron and present bulge classifications for 173 E-Sd galaxies within 20 Mpc. Pseudobulges and classical bulges are identified using Sersic index, HST morphology, and star formation activity (traced by 8 micron emission). In the near-IR pseudobulges have n_b<2 and classical bulges have n_b>2, as found in the optical. Sersic index and morphology are essentially equivalent properties for bulge classification purposes.  We confirm, using a much more robust sample, that the Sersic index of pseudobulges is uncorrelate","authors_text":"David B. Fisher, Niv Drory","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-04-29T20:23:02Z","title":"Bulges Of Nearby Galaxies With Spitzer: Scaling Relations in Pseudobulges and Classical Bulges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.5393","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":"sha256:7bbc19c29c64e96584fedbed94bcd08dbe02e33a80a463d5525fd21279e83fbe","target":"record","created_at":"2026-05-18T02:07:44Z","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":"1ca9093e179bc8ea6bed94e99473128e0a52fd082d6041aae49b8521bf7f7069","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-04-29T20:23:02Z","title_canon_sha256":"b4355c4a9f9d82101ca7c8ca3133ad6b08661ecf6113b3a2a5f59d45f1ef5b32"},"schema_version":"1.0","source":{"id":"1004.5393","kind":"arxiv","version":1}},"canonical_sha256":"31aebc6fcb83cfb3ce456976026286ef320e65ef27eecf9bb94d7ab233357425","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"31aebc6fcb83cfb3ce456976026286ef320e65ef27eecf9bb94d7ab233357425","first_computed_at":"2026-05-18T02:07:44.829922Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:44.829922Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hxu8gM082NiQaGJoOO+lfA7JWJHHpHnjnd/6nXVLIZrfUIIGrMJaSeGjkqREQGAsZuOXPqGbA7tOeQEmyMwjAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:44.830648Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.5393","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7bbc19c29c64e96584fedbed94bcd08dbe02e33a80a463d5525fd21279e83fbe","sha256:e9ded486405e87bb79a20618fb6b4c313690142ce589af1d9fc1f193aec5b9af"],"state_sha256":"40bfc1944ab0a8f5d571a1a7212fc2b3f4f63fee1cb63a2e4d43ff548dee7e92"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4562ugSjkeR97N6yInNrQV/62QwIkjXyI/4qTHCfZQQvzXGrQAnrGF4Bn0CTRM+3ai7pF/5thj4v/5VBZYsXCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T14:25:40.744940Z","bundle_sha256":"76d5e586e310451c4142811b7a64e86110c470a4321ab47a80944781eb0dd514"}}