{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:BMAQKXLRE6K3YSFE7DS6BRPQT4","short_pith_number":"pith:BMAQKXLR","canonical_record":{"source":{"id":"1604.08024","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-27T11:42:40Z","cross_cats_sorted":[],"title_canon_sha256":"f9c27a913b505473be19c9f5c45f39c44c38aab48ea8407b7e4d02bc6a9c7dea","abstract_canon_sha256":"12a1cb1124c3e705bb285e4660a919f8db7624e76d151050d49fe2cb241493af"},"schema_version":"1.0"},"canonical_sha256":"0b01055d712795bc48a4f8e5e0c5f09f33834ca90df6197da3bfc4f38cab2025","source":{"kind":"arxiv","id":"1604.08024","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08024","created_at":"2026-05-18T01:02:44Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08024v2","created_at":"2026-05-18T01:02:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08024","created_at":"2026-05-18T01:02:44Z"},{"alias_kind":"pith_short_12","alias_value":"BMAQKXLRE6K3","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"BMAQKXLRE6K3YSFE","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"BMAQKXLR","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:BMAQKXLRE6K3YSFE7DS6BRPQT4","target":"record","payload":{"canonical_record":{"source":{"id":"1604.08024","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-27T11:42:40Z","cross_cats_sorted":[],"title_canon_sha256":"f9c27a913b505473be19c9f5c45f39c44c38aab48ea8407b7e4d02bc6a9c7dea","abstract_canon_sha256":"12a1cb1124c3e705bb285e4660a919f8db7624e76d151050d49fe2cb241493af"},"schema_version":"1.0"},"canonical_sha256":"0b01055d712795bc48a4f8e5e0c5f09f33834ca90df6197da3bfc4f38cab2025","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:44.397982Z","signature_b64":"K2bGnr9zEsVh1NqQNogGLLw42Iom14GjahCszRXl79eXsnGb0GDsw39RIc8xFHbQOhpUaQygkLlorSZsUOz3CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b01055d712795bc48a4f8e5e0c5f09f33834ca90df6197da3bfc4f38cab2025","last_reissued_at":"2026-05-18T01:02:44.397585Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:44.397585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.08024","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:02:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y8rfLnFkrMVs+S92M10n5KpRj5f1n6Gzghs0L3juzEL8HR2oCEbieC97kEeJpz2VBKSA3gGUy36C7EN90cW5Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:11:44.569494Z"},"content_sha256":"47a67a3b72d0db0a6c3fce4ac3b099728ec3997bdcc68259975484a9e3be3e69","schema_version":"1.0","event_id":"sha256:47a67a3b72d0db0a6c3fce4ac3b099728ec3997bdcc68259975484a9e3be3e69"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:BMAQKXLRE6K3YSFE7DS6BRPQT4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Globular clusters indicate ultra diffuse galaxies are dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Ignacio Trujillo, Michael A. Beasley","submitted_at":"2016-04-27T11:42:40Z","abstract_excerpt":"We present an analysis of archival {\\it HST/ACS} imaging in the F475W ($g_{475}$), F606W ($V_{606}$) and F814W ($I_{814}$) bands of the globular cluster (GC) system of a large (3.4 kpc effective radius) ultra-diffuse galaxy (DF17) believed located in the Coma Cluster of galaxies. We detect 11 GCs down to the 5$\\sigma$ completeness limit of the imaging ($I_{814}=$27 mag). Correcting for background and our detection limits yields a total population of GCs in this galaxy of $27\\pm5$ and a $V$-band specific frequency, $S_N=28\\pm5$. Based on comparisons to the GC systems of Local galaxies, we show "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08024","kind":"arxiv","version":2},"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":"2026-05-18T01:02:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Gdh+OMJH8FMKHMO5wRNu97h1wAtG+vs1GRTvVHtEsd0N2EdbGq61S7/cLdnUQEKlhobmkmg7qyaQgvA+i0vCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:11:44.569911Z"},"content_sha256":"209577452dbf877ddaf8aadfb6fbea3c46e77ec36323b08ae1afa1349e4df843","schema_version":"1.0","event_id":"sha256:209577452dbf877ddaf8aadfb6fbea3c46e77ec36323b08ae1afa1349e4df843"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4/bundle.json","state_url":"https://pith.science/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4/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":"2026-05-31T19:11:44Z","links":{"resolver":"https://pith.science/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4","bundle":"https://pith.science/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4/bundle.json","state":"https://pith.science/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BMAQKXLRE6K3YSFE7DS6BRPQT4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BMAQKXLRE6K3YSFE7DS6BRPQT4","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":"12a1cb1124c3e705bb285e4660a919f8db7624e76d151050d49fe2cb241493af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-27T11:42:40Z","title_canon_sha256":"f9c27a913b505473be19c9f5c45f39c44c38aab48ea8407b7e4d02bc6a9c7dea"},"schema_version":"1.0","source":{"id":"1604.08024","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08024","created_at":"2026-05-18T01:02:44Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08024v2","created_at":"2026-05-18T01:02:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08024","created_at":"2026-05-18T01:02:44Z"},{"alias_kind":"pith_short_12","alias_value":"BMAQKXLRE6K3","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"BMAQKXLRE6K3YSFE","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"BMAQKXLR","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:209577452dbf877ddaf8aadfb6fbea3c46e77ec36323b08ae1afa1349e4df843","target":"graph","created_at":"2026-05-18T01:02:44Z","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 present an analysis of archival {\\it HST/ACS} imaging in the F475W ($g_{475}$), F606W ($V_{606}$) and F814W ($I_{814}$) bands of the globular cluster (GC) system of a large (3.4 kpc effective radius) ultra-diffuse galaxy (DF17) believed located in the Coma Cluster of galaxies. We detect 11 GCs down to the 5$\\sigma$ completeness limit of the imaging ($I_{814}=$27 mag). Correcting for background and our detection limits yields a total population of GCs in this galaxy of $27\\pm5$ and a $V$-band specific frequency, $S_N=28\\pm5$. Based on comparisons to the GC systems of Local galaxies, we show ","authors_text":"Ignacio Trujillo, Michael A. Beasley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-27T11:42:40Z","title":"Globular clusters indicate ultra diffuse galaxies are dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08024","kind":"arxiv","version":2},"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":"sha256:47a67a3b72d0db0a6c3fce4ac3b099728ec3997bdcc68259975484a9e3be3e69","target":"record","created_at":"2026-05-18T01:02:44Z","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":"12a1cb1124c3e705bb285e4660a919f8db7624e76d151050d49fe2cb241493af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-27T11:42:40Z","title_canon_sha256":"f9c27a913b505473be19c9f5c45f39c44c38aab48ea8407b7e4d02bc6a9c7dea"},"schema_version":"1.0","source":{"id":"1604.08024","kind":"arxiv","version":2}},"canonical_sha256":"0b01055d712795bc48a4f8e5e0c5f09f33834ca90df6197da3bfc4f38cab2025","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b01055d712795bc48a4f8e5e0c5f09f33834ca90df6197da3bfc4f38cab2025","first_computed_at":"2026-05-18T01:02:44.397585Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:44.397585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K2bGnr9zEsVh1NqQNogGLLw42Iom14GjahCszRXl79eXsnGb0GDsw39RIc8xFHbQOhpUaQygkLlorSZsUOz3CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:44.397982Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.08024","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47a67a3b72d0db0a6c3fce4ac3b099728ec3997bdcc68259975484a9e3be3e69","sha256:209577452dbf877ddaf8aadfb6fbea3c46e77ec36323b08ae1afa1349e4df843"],"state_sha256":"8c049790f6bb255b252e63e291fbf63eedced88bffb37dbd7ab4e025f63a9875"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TpvcYdx6/efwOHHZznRhRTJ1hPT+AK/GjKZ+BBByo8in53xzA3WXGhbutf/caYGXbogwLbB4J9D61JjiS7TICA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:11:44.573128Z","bundle_sha256":"bd28c1bdff9bed0ff62fe0a857144728599728bbab941063f162629de9b7c550"}}