{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:PEB56EUSFYR3TJASOMZI5GCE3B","short_pith_number":"pith:PEB56EUS","canonical_record":{"source":{"id":"1404.4056","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-15T20:01:01Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"6ef7aca319c3623ce1c4a0a91b7ddbe39846014c287896259e058df8e5e088c6","abstract_canon_sha256":"f2a28a62b9223cf20e220c38ae70765df5cccf0b9968a4b1a1dafcef8ecc86b6"},"schema_version":"1.0"},"canonical_sha256":"7903df12922e23b9a41273328e9844d872dd7b3b91ec2f0a06e41a162bff7c1e","source":{"kind":"arxiv","id":"1404.4056","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.4056","created_at":"2026-05-18T01:43:29Z"},{"alias_kind":"arxiv_version","alias_value":"1404.4056v1","created_at":"2026-05-18T01:43:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.4056","created_at":"2026-05-18T01:43:29Z"},{"alias_kind":"pith_short_12","alias_value":"PEB56EUSFYR3","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PEB56EUSFYR3TJAS","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PEB56EUS","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:PEB56EUSFYR3TJASOMZI5GCE3B","target":"record","payload":{"canonical_record":{"source":{"id":"1404.4056","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-15T20:01:01Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"6ef7aca319c3623ce1c4a0a91b7ddbe39846014c287896259e058df8e5e088c6","abstract_canon_sha256":"f2a28a62b9223cf20e220c38ae70765df5cccf0b9968a4b1a1dafcef8ecc86b6"},"schema_version":"1.0"},"canonical_sha256":"7903df12922e23b9a41273328e9844d872dd7b3b91ec2f0a06e41a162bff7c1e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:29.661462Z","signature_b64":"aJtjFZKUbtMTmK+zY4KUbmiFj6UhC6BEYGSJss15p3j/aTPr3edq1IkWym6bcBYyzELMtm51XvuHsXVFtBZAAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7903df12922e23b9a41273328e9844d872dd7b3b91ec2f0a06e41a162bff7c1e","last_reissued_at":"2026-05-18T01:43:29.660470Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:29.660470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.4056","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":"2026-05-18T01:43:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Ou6hzyA+8EMM2eEzQkEOtJURI1jlCRK6d7ytiAFiAIOIsQP9VAmRk7+Q39LAbrT/xhU+3ptVGFFxb0cILRMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:21:13.617819Z"},"content_sha256":"a220c3f40dc747231b167c5699311e98ad3e0abb17bb4ba8a58036c443293743","schema_version":"1.0","event_id":"sha256:a220c3f40dc747231b167c5699311e98ad3e0abb17bb4ba8a58036c443293743"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:PEB56EUSFYR3TJASOMZI5GCE3B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining globular cluster formation through studies of young massive clusters - II. A Single Stellar Population Young Massive Cluster in NGC 34","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"B. Davies, F. Schweizer, G. Bruzual, G. Magris, I. Cabrera-Ziri, N. Bastian","submitted_at":"2014-04-15T20:01:01Z","abstract_excerpt":"Currently there are two competing scenarios to explain the origin of the stellar population in globular clusters (GCs). The main difference between them is whether or not multiple events of star formation took place within GCs. In this paper we present the star formation history (SFH) of Cluster 1, a massive young cluster in NGC 34 $(\\sim10^7\\mbox{ M}_\\odot)$. We use DynBaS, a spectrum fitting algorithm, to retrieve the SFH and find that Cluster 1 is consistent with a single stellar population of solar metallicity with an age of $100\\pm30$ Myr and a mass of $1.9\\pm0.4\\times10^7\\mbox{ M}_\\odot$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.4056","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":"2026-05-18T01:43:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Cjdirh1ibKbvgsSLbO8S0I1u9PxCTqh6EPC+XOfiVLBmWP2R8t0z1VwJFD8Gu4VYAilCvvL9vcDMFlPp96pAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:21:13.618405Z"},"content_sha256":"d635e89c5ca00659d50bb6a6f03920f958f46cd6ed9da0de9bf5e69c0850e8de","schema_version":"1.0","event_id":"sha256:d635e89c5ca00659d50bb6a6f03920f958f46cd6ed9da0de9bf5e69c0850e8de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PEB56EUSFYR3TJASOMZI5GCE3B/bundle.json","state_url":"https://pith.science/pith/PEB56EUSFYR3TJASOMZI5GCE3B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PEB56EUSFYR3TJASOMZI5GCE3B/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":"2026-05-28T18:21:13Z","links":{"resolver":"https://pith.science/pith/PEB56EUSFYR3TJASOMZI5GCE3B","bundle":"https://pith.science/pith/PEB56EUSFYR3TJASOMZI5GCE3B/bundle.json","state":"https://pith.science/pith/PEB56EUSFYR3TJASOMZI5GCE3B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PEB56EUSFYR3TJASOMZI5GCE3B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:PEB56EUSFYR3TJASOMZI5GCE3B","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":"f2a28a62b9223cf20e220c38ae70765df5cccf0b9968a4b1a1dafcef8ecc86b6","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-15T20:01:01Z","title_canon_sha256":"6ef7aca319c3623ce1c4a0a91b7ddbe39846014c287896259e058df8e5e088c6"},"schema_version":"1.0","source":{"id":"1404.4056","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.4056","created_at":"2026-05-18T01:43:29Z"},{"alias_kind":"arxiv_version","alias_value":"1404.4056v1","created_at":"2026-05-18T01:43:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.4056","created_at":"2026-05-18T01:43:29Z"},{"alias_kind":"pith_short_12","alias_value":"PEB56EUSFYR3","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PEB56EUSFYR3TJAS","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PEB56EUS","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:d635e89c5ca00659d50bb6a6f03920f958f46cd6ed9da0de9bf5e69c0850e8de","target":"graph","created_at":"2026-05-18T01:43:29Z","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":"Currently there are two competing scenarios to explain the origin of the stellar population in globular clusters (GCs). The main difference between them is whether or not multiple events of star formation took place within GCs. In this paper we present the star formation history (SFH) of Cluster 1, a massive young cluster in NGC 34 $(\\sim10^7\\mbox{ M}_\\odot)$. We use DynBaS, a spectrum fitting algorithm, to retrieve the SFH and find that Cluster 1 is consistent with a single stellar population of solar metallicity with an age of $100\\pm30$ Myr and a mass of $1.9\\pm0.4\\times10^7\\mbox{ M}_\\odot$","authors_text":"B. Davies, F. Schweizer, G. Bruzual, G. Magris, I. Cabrera-Ziri, N. Bastian","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-15T20:01:01Z","title":"Constraining globular cluster formation through studies of young massive clusters - II. A Single Stellar Population Young Massive Cluster in NGC 34"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.4056","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:a220c3f40dc747231b167c5699311e98ad3e0abb17bb4ba8a58036c443293743","target":"record","created_at":"2026-05-18T01:43:29Z","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":"f2a28a62b9223cf20e220c38ae70765df5cccf0b9968a4b1a1dafcef8ecc86b6","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-04-15T20:01:01Z","title_canon_sha256":"6ef7aca319c3623ce1c4a0a91b7ddbe39846014c287896259e058df8e5e088c6"},"schema_version":"1.0","source":{"id":"1404.4056","kind":"arxiv","version":1}},"canonical_sha256":"7903df12922e23b9a41273328e9844d872dd7b3b91ec2f0a06e41a162bff7c1e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7903df12922e23b9a41273328e9844d872dd7b3b91ec2f0a06e41a162bff7c1e","first_computed_at":"2026-05-18T01:43:29.660470Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:29.660470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aJtjFZKUbtMTmK+zY4KUbmiFj6UhC6BEYGSJss15p3j/aTPr3edq1IkWym6bcBYyzELMtm51XvuHsXVFtBZAAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:29.661462Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.4056","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a220c3f40dc747231b167c5699311e98ad3e0abb17bb4ba8a58036c443293743","sha256:d635e89c5ca00659d50bb6a6f03920f958f46cd6ed9da0de9bf5e69c0850e8de"],"state_sha256":"ef977a984b9522c6b15c5cc408827a66b25f1d0b6efa646026c1895fb83c3ae9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5rP+ekBnwasC91JqO4FfSiKjadkpjeJlqXPPzv1un5EJHjp01ZNW2RkaNCZLIv3g5qLP6symyf/FSMGf2qR8Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:21:13.621577Z","bundle_sha256":"de136f988288778ff16eec94d28737fb9b208b3b16b2fed9ba5fc4c335aae394"}}