{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ZMWMVTZ4S34TYK5OZSJ7K3C2XC","short_pith_number":"pith:ZMWMVTZ4","canonical_record":{"source":{"id":"1201.1031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-04T22:44:27Z","cross_cats_sorted":[],"title_canon_sha256":"b382df2b5106627a5fc5214abbe9a4530b7acab6badd006bfdf200eae673c38b","abstract_canon_sha256":"6b79e97d1f2a5ae4ce5707a12be7a69a20e01d878799144ded2a1213c34e6089"},"schema_version":"1.0"},"canonical_sha256":"cb2ccacf3c96f93c2baecc93f56c5ab8acd98e0c638d01c14bba90020bd4e8c7","source":{"kind":"arxiv","id":"1201.1031","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1031","created_at":"2026-05-18T04:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1031v1","created_at":"2026-05-18T04:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1031","created_at":"2026-05-18T04:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"ZMWMVTZ4S34T","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZMWMVTZ4S34TYK5O","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZMWMVTZ4","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ZMWMVTZ4S34TYK5OZSJ7K3C2XC","target":"record","payload":{"canonical_record":{"source":{"id":"1201.1031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-04T22:44:27Z","cross_cats_sorted":[],"title_canon_sha256":"b382df2b5106627a5fc5214abbe9a4530b7acab6badd006bfdf200eae673c38b","abstract_canon_sha256":"6b79e97d1f2a5ae4ce5707a12be7a69a20e01d878799144ded2a1213c34e6089"},"schema_version":"1.0"},"canonical_sha256":"cb2ccacf3c96f93c2baecc93f56c5ab8acd98e0c638d01c14bba90020bd4e8c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:31.807586Z","signature_b64":"mqcVuVuDjhsqb6I0tf9T42QLObI7HmKtMuf1v1xicYELIzr9h3FsO0wQAbpU3V/3lU8+FDFzjGDVIfGOK13hAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cb2ccacf3c96f93c2baecc93f56c5ab8acd98e0c638d01c14bba90020bd4e8c7","last_reissued_at":"2026-05-18T04:03:31.806823Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:31.806823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.1031","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":"2026-05-18T04:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VkveTte5J4FXJ6vmWTFjj89A9XYlhk9pgy7pQbS5v4FTR7zI6xVAvzKRoKx080NnrqDEIVlsBdtiQ7PI5TL9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:13:59.944026Z"},"content_sha256":"70842d374c6a4fb02f26a2a94da80a12d38c697cfe7dc0916d2cc7afcd0a13cd","schema_version":"1.0","event_id":"sha256:70842d374c6a4fb02f26a2a94da80a12d38c697cfe7dc0916d2cc7afcd0a13cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ZMWMVTZ4S34TYK5OZSJ7K3C2XC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical and IR Photometry of Globular Clusters in NGC1399: Evidence for Color-Metallicity Nonlinearity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Andre R. Martel, Andres Jordan, Eric W. Peng, Hyejeon Cho, John P. Blakeslee, Laura Ferrarese","submitted_at":"2012-01-04T22:44:27Z","abstract_excerpt":"We combine new Wide Field Camera~3 IR Channel (WFC3/IR) F160W (H) imaging data for NGC1399, the central galaxy in the Fornax cluster, with archival F475W (g), F606W (V), F814W (I), and F850LP (z) optical data from the Advanced Camera for Surveys (ACS). The purely optical g-I, V-I, and g-z colors of NGC1399's rich globular cluster (GC) system exhibit clear bimodality, at least for magnitudes $I_814 > 21.5$. The optical-IR I-H color distribution appears unimodal, and this impression is confirmed by mixture modeling analysis. The V-H colors show marginal evidence for bimodality, consistent with b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1031","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":"2026-05-18T04:03:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"floFCK97+M9+TP5WLduiqXCSsorhIRoRvV0PmnHT0zzA+njcdU890/fykr9Ik7G5eepz0aeoTlCfnP9I6tyBCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:13:59.944425Z"},"content_sha256":"82e1ac49b3f58c4a3a02b6e4a32a4a03021e752aada59e1c62f4e27b1e20b7e4","schema_version":"1.0","event_id":"sha256:82e1ac49b3f58c4a3a02b6e4a32a4a03021e752aada59e1c62f4e27b1e20b7e4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC/bundle.json","state_url":"https://pith.science/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC/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":"2026-05-18T19:13:59Z","links":{"resolver":"https://pith.science/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC","bundle":"https://pith.science/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC/bundle.json","state":"https://pith.science/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZMWMVTZ4S34TYK5OZSJ7K3C2XC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZMWMVTZ4S34TYK5OZSJ7K3C2XC","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":"6b79e97d1f2a5ae4ce5707a12be7a69a20e01d878799144ded2a1213c34e6089","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-04T22:44:27Z","title_canon_sha256":"b382df2b5106627a5fc5214abbe9a4530b7acab6badd006bfdf200eae673c38b"},"schema_version":"1.0","source":{"id":"1201.1031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1031","created_at":"2026-05-18T04:03:31Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1031v1","created_at":"2026-05-18T04:03:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1031","created_at":"2026-05-18T04:03:31Z"},{"alias_kind":"pith_short_12","alias_value":"ZMWMVTZ4S34T","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZMWMVTZ4S34TYK5O","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZMWMVTZ4","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:82e1ac49b3f58c4a3a02b6e4a32a4a03021e752aada59e1c62f4e27b1e20b7e4","target":"graph","created_at":"2026-05-18T04:03:31Z","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 combine new Wide Field Camera~3 IR Channel (WFC3/IR) F160W (H) imaging data for NGC1399, the central galaxy in the Fornax cluster, with archival F475W (g), F606W (V), F814W (I), and F850LP (z) optical data from the Advanced Camera for Surveys (ACS). The purely optical g-I, V-I, and g-z colors of NGC1399's rich globular cluster (GC) system exhibit clear bimodality, at least for magnitudes $I_814 > 21.5$. The optical-IR I-H color distribution appears unimodal, and this impression is confirmed by mixture modeling analysis. The V-H colors show marginal evidence for bimodality, consistent with b","authors_text":"Andre R. Martel, Andres Jordan, Eric W. Peng, Hyejeon Cho, John P. Blakeslee, Laura Ferrarese","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-04T22:44:27Z","title":"Optical and IR Photometry of Globular Clusters in NGC1399: Evidence for Color-Metallicity Nonlinearity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1031","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":"sha256:70842d374c6a4fb02f26a2a94da80a12d38c697cfe7dc0916d2cc7afcd0a13cd","target":"record","created_at":"2026-05-18T04:03:31Z","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":"6b79e97d1f2a5ae4ce5707a12be7a69a20e01d878799144ded2a1213c34e6089","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-04T22:44:27Z","title_canon_sha256":"b382df2b5106627a5fc5214abbe9a4530b7acab6badd006bfdf200eae673c38b"},"schema_version":"1.0","source":{"id":"1201.1031","kind":"arxiv","version":1}},"canonical_sha256":"cb2ccacf3c96f93c2baecc93f56c5ab8acd98e0c638d01c14bba90020bd4e8c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb2ccacf3c96f93c2baecc93f56c5ab8acd98e0c638d01c14bba90020bd4e8c7","first_computed_at":"2026-05-18T04:03:31.806823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:31.806823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mqcVuVuDjhsqb6I0tf9T42QLObI7HmKtMuf1v1xicYELIzr9h3FsO0wQAbpU3V/3lU8+FDFzjGDVIfGOK13hAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:31.807586Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70842d374c6a4fb02f26a2a94da80a12d38c697cfe7dc0916d2cc7afcd0a13cd","sha256:82e1ac49b3f58c4a3a02b6e4a32a4a03021e752aada59e1c62f4e27b1e20b7e4"],"state_sha256":"f0d1053a0b0bb9de0675c4ca61e0d326a9ab2eafe38cdada31588b7ae722fdb8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1a79dpnGazNZKF7grSN7msELJew65DhrUAFsXAzZeuAbScNn+E51uoLCZZtUCeV7Thr+CNq5KZp6dbkhis5SDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T19:13:59.946385Z","bundle_sha256":"f6339f7c79ca8fdf2a8525225be4ff3f80e842e9f2ca152be58477402e2dbe34"}}