{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DTYLOUIY4IPTVKHHWU3243K4OT","short_pith_number":"pith:DTYLOUIY","canonical_record":{"source":{"id":"1804.08869","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-24T07:11:48Z","cross_cats_sorted":[],"title_canon_sha256":"c28151d98d632f10c3a2d915e21acc2270ca9f591d7c82737cc5e547125ce8da","abstract_canon_sha256":"45da87f953efc0e7c8bfc7054b12400352d6ea6d941071bb522cf504b124310a"},"schema_version":"1.0"},"canonical_sha256":"1cf0b75118e21f3aa8e7b537ae6d5c74d557dd1ffda57c7ef0a74fdebb560581","source":{"kind":"arxiv","id":"1804.08869","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08869","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08869v1","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08869","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"pith_short_12","alias_value":"DTYLOUIY4IPT","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DTYLOUIY4IPTVKHH","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DTYLOUIY","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DTYLOUIY4IPTVKHHWU3243K4OT","target":"record","payload":{"canonical_record":{"source":{"id":"1804.08869","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-24T07:11:48Z","cross_cats_sorted":[],"title_canon_sha256":"c28151d98d632f10c3a2d915e21acc2270ca9f591d7c82737cc5e547125ce8da","abstract_canon_sha256":"45da87f953efc0e7c8bfc7054b12400352d6ea6d941071bb522cf504b124310a"},"schema_version":"1.0"},"canonical_sha256":"1cf0b75118e21f3aa8e7b537ae6d5c74d557dd1ffda57c7ef0a74fdebb560581","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:54.632816Z","signature_b64":"LDDLprQuF+wB6v2ZzIFkSlraR8uTjCPAN9TST0mmd+yO9DxsEp6XGVS9CpIzewCo98h2aq50i5ycFPTPLTbMCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1cf0b75118e21f3aa8e7b537ae6d5c74d557dd1ffda57c7ef0a74fdebb560581","last_reissued_at":"2026-05-18T00:15:54.632102Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:54.632102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.08869","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":"2026-05-18T00:15:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BKQHI57RADg5WgKzslrWMsNJAbhyAN3MrBJYSGunKxwfEvK/2LK9Wse+bXzVvpe/rhuUALx2iqxiqcGJXC1YDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:22:00.811500Z"},"content_sha256":"d0d8fd9335af95ba4583e391afb31263f81fdc41e6edd41729f6759613197707","schema_version":"1.0","event_id":"sha256:d0d8fd9335af95ba4583e391afb31263f81fdc41e6edd41729f6759613197707"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DTYLOUIY4IPTVKHHWU3243K4OT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The early dynamical evolution of star clusters near the Galactic Centre","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Simon P. Goodwin, So-Myoung Park, Sungsoo S. Kim","submitted_at":"2018-04-24T07:11:48Z","abstract_excerpt":"We examine the dynamical evolution of both Plummer sphere and substructured (fractal) star forming regions in Galactic Centre (GC) strong tidal fields to see what initial conditions could give rise to an Arches-like massive star cluster by $\\sim 2$ Myr. We find that any initial distribution has to be contained within its initial tidal radius to survive, which sets a lower limit of the initial density of the Arches of $\\sim$ 600 M$_\\odot$ pc$^{-3}$ if the Arches is at 30 pc from the GC, or $\\sim$ 200 M$_\\odot$ pc$^{-3}$ if the Arches is at 100 pc from the GC. Plummer spheres that survive change"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08869","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":"2026-05-18T00:15:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dSt3uyZv4059NLOGsMczH6Ilfxz2lLBwY01cgJ+0VjN5tOVDpZs33Xu3x1gOP1sbXVGW44yUsMOYvmHGw9cmCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T17:22:00.812157Z"},"content_sha256":"f923d4962b3bb00802f754dfc7b7528285edcf5ea7bcee20060bd8bc29d82ad6","schema_version":"1.0","event_id":"sha256:f923d4962b3bb00802f754dfc7b7528285edcf5ea7bcee20060bd8bc29d82ad6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DTYLOUIY4IPTVKHHWU3243K4OT/bundle.json","state_url":"https://pith.science/pith/DTYLOUIY4IPTVKHHWU3243K4OT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DTYLOUIY4IPTVKHHWU3243K4OT/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":"2026-06-08T17:22:00Z","links":{"resolver":"https://pith.science/pith/DTYLOUIY4IPTVKHHWU3243K4OT","bundle":"https://pith.science/pith/DTYLOUIY4IPTVKHHWU3243K4OT/bundle.json","state":"https://pith.science/pith/DTYLOUIY4IPTVKHHWU3243K4OT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DTYLOUIY4IPTVKHHWU3243K4OT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DTYLOUIY4IPTVKHHWU3243K4OT","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":"45da87f953efc0e7c8bfc7054b12400352d6ea6d941071bb522cf504b124310a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-24T07:11:48Z","title_canon_sha256":"c28151d98d632f10c3a2d915e21acc2270ca9f591d7c82737cc5e547125ce8da"},"schema_version":"1.0","source":{"id":"1804.08869","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.08869","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"arxiv_version","alias_value":"1804.08869v1","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.08869","created_at":"2026-05-18T00:15:54Z"},{"alias_kind":"pith_short_12","alias_value":"DTYLOUIY4IPT","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DTYLOUIY4IPTVKHH","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DTYLOUIY","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:f923d4962b3bb00802f754dfc7b7528285edcf5ea7bcee20060bd8bc29d82ad6","target":"graph","created_at":"2026-05-18T00:15:54Z","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 examine the dynamical evolution of both Plummer sphere and substructured (fractal) star forming regions in Galactic Centre (GC) strong tidal fields to see what initial conditions could give rise to an Arches-like massive star cluster by $\\sim 2$ Myr. We find that any initial distribution has to be contained within its initial tidal radius to survive, which sets a lower limit of the initial density of the Arches of $\\sim$ 600 M$_\\odot$ pc$^{-3}$ if the Arches is at 30 pc from the GC, or $\\sim$ 200 M$_\\odot$ pc$^{-3}$ if the Arches is at 100 pc from the GC. Plummer spheres that survive change","authors_text":"Simon P. Goodwin, So-Myoung Park, Sungsoo S. Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-24T07:11:48Z","title":"The early dynamical evolution of star clusters near the Galactic Centre"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.08869","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:d0d8fd9335af95ba4583e391afb31263f81fdc41e6edd41729f6759613197707","target":"record","created_at":"2026-05-18T00:15:54Z","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":"45da87f953efc0e7c8bfc7054b12400352d6ea6d941071bb522cf504b124310a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-24T07:11:48Z","title_canon_sha256":"c28151d98d632f10c3a2d915e21acc2270ca9f591d7c82737cc5e547125ce8da"},"schema_version":"1.0","source":{"id":"1804.08869","kind":"arxiv","version":1}},"canonical_sha256":"1cf0b75118e21f3aa8e7b537ae6d5c74d557dd1ffda57c7ef0a74fdebb560581","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1cf0b75118e21f3aa8e7b537ae6d5c74d557dd1ffda57c7ef0a74fdebb560581","first_computed_at":"2026-05-18T00:15:54.632102Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:54.632102Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LDDLprQuF+wB6v2ZzIFkSlraR8uTjCPAN9TST0mmd+yO9DxsEp6XGVS9CpIzewCo98h2aq50i5ycFPTPLTbMCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:54.632816Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.08869","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0d8fd9335af95ba4583e391afb31263f81fdc41e6edd41729f6759613197707","sha256:f923d4962b3bb00802f754dfc7b7528285edcf5ea7bcee20060bd8bc29d82ad6"],"state_sha256":"8755a3207c6b7fb21d2966efd62a6c830acd93ebefb3d496243e7484aac9e5b0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B4MyfZ9iMuXaak8BPXcbERctHZCz8v1ItISqn6laIeeoVeBSVReNI9ICDFC1mKyDrNIGDTpdqCnw0Yhcvgi6AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T17:22:00.815795Z","bundle_sha256":"efd3d45aea2fe7c29012cee26cb240771629d93c51d6c1ac4d1c4afc2c5f7709"}}