{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:XXJAYN7FDMD54K6YIM2MTT7N6X","short_pith_number":"pith:XXJAYN7F","canonical_record":{"source":{"id":"0906.1211","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-05T22:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"fc5dac02bbb335bdfeaa94cff8d2a8928ee1372ead55f027228ebd85d0475125","abstract_canon_sha256":"e8d700cf413b663bafbde755b8bab0f7daedab71a0c3bad83bd504f3645a40d7"},"schema_version":"1.0"},"canonical_sha256":"bdd20c37e51b07de2bd84334c9cfedf5d4a6e5643b9949a4f4b65a4979643e32","source":{"kind":"arxiv","id":"0906.1211","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.1211","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"arxiv_version","alias_value":"0906.1211v1","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.1211","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"pith_short_12","alias_value":"XXJAYN7FDMD5","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"pith_short_16","alias_value":"XXJAYN7FDMD54K6Y","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"pith_short_8","alias_value":"XXJAYN7F","created_at":"2026-07-04T15:47:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:XXJAYN7FDMD54K6YIM2MTT7N6X","target":"record","payload":{"canonical_record":{"source":{"id":"0906.1211","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-05T22:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"fc5dac02bbb335bdfeaa94cff8d2a8928ee1372ead55f027228ebd85d0475125","abstract_canon_sha256":"e8d700cf413b663bafbde755b8bab0f7daedab71a0c3bad83bd504f3645a40d7"},"schema_version":"1.0"},"canonical_sha256":"bdd20c37e51b07de2bd84334c9cfedf5d4a6e5643b9949a4f4b65a4979643e32","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:47:18.298442Z","signature_b64":"ei1Fn2Mbp0ZEvFBz49ug7dkeIZDIliIK7RnpgBAjZD8/02UK4cj1RervUPUh6uetKmKW+eeLMwRRyvRntp6RBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bdd20c37e51b07de2bd84334c9cfedf5d4a6e5643b9949a4f4b65a4979643e32","last_reissued_at":"2026-07-04T15:47:18.298032Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:47:18.298032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0906.1211","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":"2026-07-04T15:47:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C8Rkl6aFfKIO+srZXjbWkvU19W5DSgBjKjhPf43TV/ZjmBDGJciuwaYZTb75/HZQtcwmb1VKiRr46jWXCnQgAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:36:49.279722Z"},"content_sha256":"8363a9442a79f42ae8fa7a06d8358c46bfbd92f0e22fa4d3a21c429a2ceb1ac2","schema_version":"1.0","event_id":"sha256:8363a9442a79f42ae8fa7a06d8358c46bfbd92f0e22fa4d3a21c429a2ceb1ac2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:XXJAYN7FDMD54K6YIM2MTT7N6X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spatially Correlated Cluster Populations in the Outer Disk of NGC 3184","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Baruffolo, A. DiPaola, A. Fontana, D. Christlein, D. Zaritsky, E. Giallongo, E. Wilcots, J. Moustakas, R. Ragazzoni, R. Smareglia, R. W. Pogge, S. Herbert-Fort","submitted_at":"2009-06-05T22:56:34Z","abstract_excerpt":"We use deep (~27.5 mag V-band point-source limiting magnitude) V- and U-band LBT imaging to study the outer disk (beyond the optical radius R_25) of the non-interacting, face-on spiral galaxy NGC 3184 (D = 11.1 Mpc; R_25 = 11.1 kpc) and find that this outer disk contains >1000 objects (or marginally-resolved 'knots') resembling star clusters with masses ~10^2 - 10^4 M_sun and ages up to ~1 Gyr. We find statistically significant numbers of these cluster-like knots extending to ~1.4 R_25, with the redder knots outnumbering bluer at the largest radii. We measure clustering among knots and find si"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.1211","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/0906.1211/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":"2026-07-04T15:47:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8xfkXzyYHL7T+1Am5+ZoTl6uv7+hof/72vU6zzR1K59lE6q29iNKMHLqwca3MHHufl0F1pNIk3tWLK+vjzW/Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:36:49.280367Z"},"content_sha256":"97c2ea72ec6607345d1c8739b7f0d5992a14dd3c16df90ac36ef6bec0ef7ea39","schema_version":"1.0","event_id":"sha256:97c2ea72ec6607345d1c8739b7f0d5992a14dd3c16df90ac36ef6bec0ef7ea39"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XXJAYN7FDMD54K6YIM2MTT7N6X/bundle.json","state_url":"https://pith.science/pith/XXJAYN7FDMD54K6YIM2MTT7N6X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XXJAYN7FDMD54K6YIM2MTT7N6X/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":"2026-08-03T20:36:49Z","links":{"resolver":"https://pith.science/pith/XXJAYN7FDMD54K6YIM2MTT7N6X","bundle":"https://pith.science/pith/XXJAYN7FDMD54K6YIM2MTT7N6X/bundle.json","state":"https://pith.science/pith/XXJAYN7FDMD54K6YIM2MTT7N6X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XXJAYN7FDMD54K6YIM2MTT7N6X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:XXJAYN7FDMD54K6YIM2MTT7N6X","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":"e8d700cf413b663bafbde755b8bab0f7daedab71a0c3bad83bd504f3645a40d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-05T22:56:34Z","title_canon_sha256":"fc5dac02bbb335bdfeaa94cff8d2a8928ee1372ead55f027228ebd85d0475125"},"schema_version":"1.0","source":{"id":"0906.1211","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0906.1211","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"arxiv_version","alias_value":"0906.1211v1","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.1211","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"pith_short_12","alias_value":"XXJAYN7FDMD5","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"pith_short_16","alias_value":"XXJAYN7FDMD54K6Y","created_at":"2026-07-04T15:47:18Z"},{"alias_kind":"pith_short_8","alias_value":"XXJAYN7F","created_at":"2026-07-04T15:47:18Z"}],"graph_snapshots":[{"event_id":"sha256:97c2ea72ec6607345d1c8739b7f0d5992a14dd3c16df90ac36ef6bec0ef7ea39","target":"graph","created_at":"2026-07-04T15:47:18Z","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/0906.1211/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We use deep (~27.5 mag V-band point-source limiting magnitude) V- and U-band LBT imaging to study the outer disk (beyond the optical radius R_25) of the non-interacting, face-on spiral galaxy NGC 3184 (D = 11.1 Mpc; R_25 = 11.1 kpc) and find that this outer disk contains >1000 objects (or marginally-resolved 'knots') resembling star clusters with masses ~10^2 - 10^4 M_sun and ages up to ~1 Gyr. We find statistically significant numbers of these cluster-like knots extending to ~1.4 R_25, with the redder knots outnumbering bluer at the largest radii. We measure clustering among knots and find si","authors_text":"A. Baruffolo, A. DiPaola, A. Fontana, D. Christlein, D. Zaritsky, E. Giallongo, E. Wilcots, J. Moustakas, R. Ragazzoni, R. Smareglia, R. W. Pogge, S. Herbert-Fort","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-05T22:56:34Z","title":"Spatially Correlated Cluster Populations in the Outer Disk of NGC 3184"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.1211","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":"sha256:8363a9442a79f42ae8fa7a06d8358c46bfbd92f0e22fa4d3a21c429a2ceb1ac2","target":"record","created_at":"2026-07-04T15:47:18Z","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":"e8d700cf413b663bafbde755b8bab0f7daedab71a0c3bad83bd504f3645a40d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-06-05T22:56:34Z","title_canon_sha256":"fc5dac02bbb335bdfeaa94cff8d2a8928ee1372ead55f027228ebd85d0475125"},"schema_version":"1.0","source":{"id":"0906.1211","kind":"arxiv","version":1}},"canonical_sha256":"bdd20c37e51b07de2bd84334c9cfedf5d4a6e5643b9949a4f4b65a4979643e32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bdd20c37e51b07de2bd84334c9cfedf5d4a6e5643b9949a4f4b65a4979643e32","first_computed_at":"2026-07-04T15:47:18.298032Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:47:18.298032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ei1Fn2Mbp0ZEvFBz49ug7dkeIZDIliIK7RnpgBAjZD8/02UK4cj1RervUPUh6uetKmKW+eeLMwRRyvRntp6RBw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:47:18.298442Z","signed_message":"canonical_sha256_bytes"},"source_id":"0906.1211","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8363a9442a79f42ae8fa7a06d8358c46bfbd92f0e22fa4d3a21c429a2ceb1ac2","sha256:97c2ea72ec6607345d1c8739b7f0d5992a14dd3c16df90ac36ef6bec0ef7ea39"],"state_sha256":"6f9fa6145aa1e4a541573bff5da692398df7d726f9a12069b68d1480ac3d4141"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XVnp9K0KURSAixQ1UVBBynGDQPG7yf3NzLoKgfu3HEDWHHadhZE2tw7ZPIXdcOPUYlj3aPRyt/tORpj9SiBVBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T20:36:49.301537Z","bundle_sha256":"410553fd7b106f819e8d9d1eb7cb763f4b8385b5d84c01ddcbc802ef92196f5e"}}