{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:DL3SIV4WEFJHURGLZHPEMK2PYT","short_pith_number":"pith:DL3SIV4W","canonical_record":{"source":{"id":"astro-ph/0510343","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-12T11:18:30Z","cross_cats_sorted":[],"title_canon_sha256":"21b1c7e606648f11015fc1ea251528876485b65f3735af2f7d5be76ee2aae022","abstract_canon_sha256":"66aec6bc642cfa692aef2ad8d1bb62c88e86729d54f00c86884fc47e54f98adb"},"schema_version":"1.0"},"canonical_sha256":"1af724579621527a44cbc9de462b4fc4d48b4535aa56ae1efaf238f9dfc7b3e6","source":{"kind":"arxiv","id":"astro-ph/0510343","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0510343","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0510343v1","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0510343","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"pith_short_12","alias_value":"DL3SIV4WEFJH","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"pith_short_16","alias_value":"DL3SIV4WEFJHURGL","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"pith_short_8","alias_value":"DL3SIV4W","created_at":"2026-07-04T17:15:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:DL3SIV4WEFJHURGLZHPEMK2PYT","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0510343","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-12T11:18:30Z","cross_cats_sorted":[],"title_canon_sha256":"21b1c7e606648f11015fc1ea251528876485b65f3735af2f7d5be76ee2aae022","abstract_canon_sha256":"66aec6bc642cfa692aef2ad8d1bb62c88e86729d54f00c86884fc47e54f98adb"},"schema_version":"1.0"},"canonical_sha256":"1af724579621527a44cbc9de462b4fc4d48b4535aa56ae1efaf238f9dfc7b3e6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:15:18.160001Z","signature_b64":"tbDUdXyP4tUsgIANOIHpVbHlWhBCEXIWRK1JHnS85NvNxVPCP9JabcY4cqRSx2yCxoDyuKp4bEB3TmSDOHIhBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1af724579621527a44cbc9de462b4fc4d48b4535aa56ae1efaf238f9dfc7b3e6","last_reissued_at":"2026-07-04T17:15:18.159587Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:15:18.159587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0510343","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":"2026-07-04T17:15:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mwGHcITlsHahUrcM+Pze5MX9MSQ6q74olEDSzl9ZmyjP15lxso07RidPochbWczL43tdAbehKbiQ/N6J1oQWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T04:48:20.458016Z"},"content_sha256":"0ef1aa34fee76836d8d6ce27f017f7d8ebaa77c29989d0e99a76519006fc2ece","schema_version":"1.0","event_id":"sha256:0ef1aa34fee76836d8d6ce27f017f7d8ebaa77c29989d0e99a76519006fc2ece"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:DL3SIV4WEFJHURGLZHPEMK2PYT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reddening distribution across the center of the globular cluster Omega Centauri","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Calamida, A. M. Piersimoni, A. Munteanu, A. Pietrinferni, C. E. Corsi, F. Grundahl, G. Bono, I. Ferraro, L. M. Freyhammer, L. Pulone, M. Dall'Ora, M. Del Principe, M. Hilker, M. I. Andersen, M. Monelli, M. Nonino, P. B. Stetson, R. Buonanno, S. Cassisi, T. Richtler","submitted_at":"2005-10-12T11:18:30Z","abstract_excerpt":"We present new medium-band uvby Stromgren and broad-band VI photometry for the central regions of the globular cluster Omega Cen. From this photometry we have obtained differential reddening estimates relative to two other globular clusters (M13 and NGC288) using a metallicity-independent, reddening-free temperature index, [c]=(u-v)-(v-b) - 0.2(b-y), for hot horizontal-branch (HB) stars (T_e> 8,500K). We estimate color excesses of these hot HB stars using optical and near-infrared colors, and find clumpy extinction variations of almost a factor of two within the area of the cluster core. In pa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0510343","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0510343/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:15:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fx9EfkeZb1g2HYuD0bdwa53UIGu1LiYB1QLrXFA67z+2vjM7QThuGzVASndtAYAenmpHlRv8vhq/EE5JdnywBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T04:48:20.458632Z"},"content_sha256":"6d8e409db469cb2e72812a1dd086ccf7834fc575dad7f7875907573cff1659d5","schema_version":"1.0","event_id":"sha256:6d8e409db469cb2e72812a1dd086ccf7834fc575dad7f7875907573cff1659d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DL3SIV4WEFJHURGLZHPEMK2PYT/bundle.json","state_url":"https://pith.science/pith/DL3SIV4WEFJHURGLZHPEMK2PYT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DL3SIV4WEFJHURGLZHPEMK2PYT/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":"2026-08-07T04:48:20Z","links":{"resolver":"https://pith.science/pith/DL3SIV4WEFJHURGLZHPEMK2PYT","bundle":"https://pith.science/pith/DL3SIV4WEFJHURGLZHPEMK2PYT/bundle.json","state":"https://pith.science/pith/DL3SIV4WEFJHURGLZHPEMK2PYT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DL3SIV4WEFJHURGLZHPEMK2PYT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:DL3SIV4WEFJHURGLZHPEMK2PYT","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":"66aec6bc642cfa692aef2ad8d1bb62c88e86729d54f00c86884fc47e54f98adb","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-12T11:18:30Z","title_canon_sha256":"21b1c7e606648f11015fc1ea251528876485b65f3735af2f7d5be76ee2aae022"},"schema_version":"1.0","source":{"id":"astro-ph/0510343","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0510343","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0510343v1","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0510343","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"pith_short_12","alias_value":"DL3SIV4WEFJH","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"pith_short_16","alias_value":"DL3SIV4WEFJHURGL","created_at":"2026-07-04T17:15:18Z"},{"alias_kind":"pith_short_8","alias_value":"DL3SIV4W","created_at":"2026-07-04T17:15:18Z"}],"graph_snapshots":[{"event_id":"sha256:6d8e409db469cb2e72812a1dd086ccf7834fc575dad7f7875907573cff1659d5","target":"graph","created_at":"2026-07-04T17:15:18Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0510343/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new medium-band uvby Stromgren and broad-band VI photometry for the central regions of the globular cluster Omega Cen. From this photometry we have obtained differential reddening estimates relative to two other globular clusters (M13 and NGC288) using a metallicity-independent, reddening-free temperature index, [c]=(u-v)-(v-b) - 0.2(b-y), for hot horizontal-branch (HB) stars (T_e> 8,500K). We estimate color excesses of these hot HB stars using optical and near-infrared colors, and find clumpy extinction variations of almost a factor of two within the area of the cluster core. In pa","authors_text":"A. Calamida, A. M. Piersimoni, A. Munteanu, A. Pietrinferni, C. E. Corsi, F. Grundahl, G. Bono, I. Ferraro, L. M. Freyhammer, L. Pulone, M. Dall'Ora, M. Del Principe, M. Hilker, M. I. Andersen, M. Monelli, M. Nonino, P. B. Stetson, R. Buonanno, S. Cassisi, T. Richtler","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-10-12T11:18:30Z","title":"Reddening distribution across the center of the globular cluster Omega Centauri"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0510343","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":"sha256:0ef1aa34fee76836d8d6ce27f017f7d8ebaa77c29989d0e99a76519006fc2ece","target":"record","created_at":"2026-07-04T17:15:18Z","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":"66aec6bc642cfa692aef2ad8d1bb62c88e86729d54f00c86884fc47e54f98adb","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-12T11:18:30Z","title_canon_sha256":"21b1c7e606648f11015fc1ea251528876485b65f3735af2f7d5be76ee2aae022"},"schema_version":"1.0","source":{"id":"astro-ph/0510343","kind":"arxiv","version":1}},"canonical_sha256":"1af724579621527a44cbc9de462b4fc4d48b4535aa56ae1efaf238f9dfc7b3e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1af724579621527a44cbc9de462b4fc4d48b4535aa56ae1efaf238f9dfc7b3e6","first_computed_at":"2026-07-04T17:15:18.159587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:15:18.159587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tbDUdXyP4tUsgIANOIHpVbHlWhBCEXIWRK1JHnS85NvNxVPCP9JabcY4cqRSx2yCxoDyuKp4bEB3TmSDOHIhBA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:15:18.160001Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0510343","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ef1aa34fee76836d8d6ce27f017f7d8ebaa77c29989d0e99a76519006fc2ece","sha256:6d8e409db469cb2e72812a1dd086ccf7834fc575dad7f7875907573cff1659d5"],"state_sha256":"6e2fa725c4b47d4bee3ec98e6ab66e873acbe0f1dd2256232f804312c442d310"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gdf3Kj9YbPQF8zk6DWKqZfvLRe4StAVk3hPCHB3KpbB0sxHgsXnNwk8G+7rQd/6SLRY7iEYiiGl5PKNRRlqsDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T04:48:20.466980Z","bundle_sha256":"e3101c587c169b026da96fdc338f3e68836ef56b06e8e9157c66a4b1cd4f545e"}}