{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IYHCIF42JI7WSMCXH4MACXSLSF","short_pith_number":"pith:IYHCIF42","canonical_record":{"source":{"id":"1408.6021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-26T06:24:20Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"1d97fd6de4f273adf35f3607d71254f8fe2182e5cce4a13b85c44c3aa4939a78","abstract_canon_sha256":"41d0d95197b2a2188c04661d67504c467836c4dd478f6d73a40242c52f7a8193"},"schema_version":"1.0"},"canonical_sha256":"460e24179a4a3f6930573f18015e4b91720e10f703c8c4ebc04a5edf82f7be6c","source":{"kind":"arxiv","id":"1408.6021","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.6021","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1408.6021v1","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.6021","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"IYHCIF42JI7W","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IYHCIF42JI7WSMCX","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IYHCIF42","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IYHCIF42JI7WSMCXH4MACXSLSF","target":"record","payload":{"canonical_record":{"source":{"id":"1408.6021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-26T06:24:20Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"1d97fd6de4f273adf35f3607d71254f8fe2182e5cce4a13b85c44c3aa4939a78","abstract_canon_sha256":"41d0d95197b2a2188c04661d67504c467836c4dd478f6d73a40242c52f7a8193"},"schema_version":"1.0"},"canonical_sha256":"460e24179a4a3f6930573f18015e4b91720e10f703c8c4ebc04a5edf82f7be6c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:13.114748Z","signature_b64":"9VfzZL8h0VI0m9wI6EKOUpL0CXw+LLw3rjLXGjQK+Tg1EseXIfsdmhbpD6isVNkI+zOrT/TxKPCBUdfAswsADw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"460e24179a4a3f6930573f18015e4b91720e10f703c8c4ebc04a5edf82f7be6c","last_reissued_at":"2026-05-18T01:42:13.114256Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:13.114256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.6021","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":"2026-05-18T01:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zv8P4mx62O83RzaM7oZAmZBNZFZN4kkGBGDg1hUJsToImWbA3VFShi28Nztps3aVt76Cb3ZVjQ1+mlJAmT4PDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T01:25:52.340280Z"},"content_sha256":"737003a56a9a2383a971d7f952850e7670c5bf8f77a2465e6275a7380058b693","schema_version":"1.0","event_id":"sha256:737003a56a9a2383a971d7f952850e7670c5bf8f77a2465e6275a7380058b693"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IYHCIF42JI7WSMCXH4MACXSLSF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The evolutionary tracks of young massive star clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"G. Parmentier, K. Menten, K. Vincke, M. Steinhausen, S. Pfalzner","submitted_at":"2014-08-26T06:24:20Z","abstract_excerpt":"Stars mostly form in groups consisting of a few dozen to several ten thousand members. For 30 years, theoretical models provide a basic concept of how such star clusters form and develop: they originate from the gas and dust of collapsing molecular clouds. The conversion from gas to stars being incomplete, the left over gas is expelled, leading to cluster expansion and stars becoming unbound. Observationally, a direct confirmation of this process has proved elusive, which is attributed to the diversity of the properties of forming clusters. Here we take into account that the true cluster masse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.6021","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":"2026-05-18T01:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JtyIyAiAJAO+bMlSr7nI39OS0q85L/Z6vRVzPHvMhHh7hUBUSG+FBzHy0e7vPMdrewzn/GOu75/YjVQjGisHAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T01:25:52.340968Z"},"content_sha256":"663e313b0f30b3f71197ea4af13f72a8eee60554eba08198fe2d2b0d725ceb51","schema_version":"1.0","event_id":"sha256:663e313b0f30b3f71197ea4af13f72a8eee60554eba08198fe2d2b0d725ceb51"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IYHCIF42JI7WSMCXH4MACXSLSF/bundle.json","state_url":"https://pith.science/pith/IYHCIF42JI7WSMCXH4MACXSLSF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IYHCIF42JI7WSMCXH4MACXSLSF/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":"2026-05-20T01:25:52Z","links":{"resolver":"https://pith.science/pith/IYHCIF42JI7WSMCXH4MACXSLSF","bundle":"https://pith.science/pith/IYHCIF42JI7WSMCXH4MACXSLSF/bundle.json","state":"https://pith.science/pith/IYHCIF42JI7WSMCXH4MACXSLSF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IYHCIF42JI7WSMCXH4MACXSLSF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IYHCIF42JI7WSMCXH4MACXSLSF","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":"41d0d95197b2a2188c04661d67504c467836c4dd478f6d73a40242c52f7a8193","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-26T06:24:20Z","title_canon_sha256":"1d97fd6de4f273adf35f3607d71254f8fe2182e5cce4a13b85c44c3aa4939a78"},"schema_version":"1.0","source":{"id":"1408.6021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.6021","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1408.6021v1","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.6021","created_at":"2026-05-18T01:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"IYHCIF42JI7W","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IYHCIF42JI7WSMCX","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IYHCIF42","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:663e313b0f30b3f71197ea4af13f72a8eee60554eba08198fe2d2b0d725ceb51","target":"graph","created_at":"2026-05-18T01:42:13Z","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":"Stars mostly form in groups consisting of a few dozen to several ten thousand members. For 30 years, theoretical models provide a basic concept of how such star clusters form and develop: they originate from the gas and dust of collapsing molecular clouds. The conversion from gas to stars being incomplete, the left over gas is expelled, leading to cluster expansion and stars becoming unbound. Observationally, a direct confirmation of this process has proved elusive, which is attributed to the diversity of the properties of forming clusters. Here we take into account that the true cluster masse","authors_text":"G. Parmentier, K. Menten, K. Vincke, M. Steinhausen, S. Pfalzner","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-26T06:24:20Z","title":"The evolutionary tracks of young massive star clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.6021","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":"sha256:737003a56a9a2383a971d7f952850e7670c5bf8f77a2465e6275a7380058b693","target":"record","created_at":"2026-05-18T01:42:13Z","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":"41d0d95197b2a2188c04661d67504c467836c4dd478f6d73a40242c52f7a8193","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-08-26T06:24:20Z","title_canon_sha256":"1d97fd6de4f273adf35f3607d71254f8fe2182e5cce4a13b85c44c3aa4939a78"},"schema_version":"1.0","source":{"id":"1408.6021","kind":"arxiv","version":1}},"canonical_sha256":"460e24179a4a3f6930573f18015e4b91720e10f703c8c4ebc04a5edf82f7be6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"460e24179a4a3f6930573f18015e4b91720e10f703c8c4ebc04a5edf82f7be6c","first_computed_at":"2026-05-18T01:42:13.114256Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:13.114256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9VfzZL8h0VI0m9wI6EKOUpL0CXw+LLw3rjLXGjQK+Tg1EseXIfsdmhbpD6isVNkI+zOrT/TxKPCBUdfAswsADw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:13.114748Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.6021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:737003a56a9a2383a971d7f952850e7670c5bf8f77a2465e6275a7380058b693","sha256:663e313b0f30b3f71197ea4af13f72a8eee60554eba08198fe2d2b0d725ceb51"],"state_sha256":"b6b6695263db75b0a9642c7b405f1b4be5a6df098e8deb7660b9f6201e311014"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3wCNx8n1zoC8w9bsS569g8ki+yOWm4uylsGK1uUoM3fhK1aRKVRjz+iGD7DkrE3lwGHcvDrfLcPYvCG24XWpAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T01:25:52.343794Z","bundle_sha256":"1e76daf269846a6f201ae644cc3701aaf6dcea166f14385233a7650a7137bb32"}}