{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:Q34SJC5KAOKYXVNLGEKIQ2E4SJ","short_pith_number":"pith:Q34SJC5K","canonical_record":{"source":{"id":"1102.4340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-02-21T21:03:14Z","cross_cats_sorted":[],"title_canon_sha256":"bb2db3d53b6cb3c6b646d6d408adea411ee97c25f60b2cd725230b571a55b0c4","abstract_canon_sha256":"eca5440ac15802a3de2b307c2b350fcbcc17c47275674ade32b8993477a70f1f"},"schema_version":"1.0"},"canonical_sha256":"86f9248baa03958bd5ab311488689c9261978ca52f5111f9fb315398d6a8eba9","source":{"kind":"arxiv","id":"1102.4340","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.4340","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"arxiv_version","alias_value":"1102.4340v1","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.4340","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"pith_short_12","alias_value":"Q34SJC5KAOKY","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q34SJC5KAOKYXVNL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q34SJC5K","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:Q34SJC5KAOKYXVNLGEKIQ2E4SJ","target":"record","payload":{"canonical_record":{"source":{"id":"1102.4340","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-02-21T21:03:14Z","cross_cats_sorted":[],"title_canon_sha256":"bb2db3d53b6cb3c6b646d6d408adea411ee97c25f60b2cd725230b571a55b0c4","abstract_canon_sha256":"eca5440ac15802a3de2b307c2b350fcbcc17c47275674ade32b8993477a70f1f"},"schema_version":"1.0"},"canonical_sha256":"86f9248baa03958bd5ab311488689c9261978ca52f5111f9fb315398d6a8eba9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:06.808760Z","signature_b64":"6RkK0i4W/QlV+qFIiQLPPRwPW8me5S4pPQ0BRtBsS6y8Cds7tPs4KsOTRewNK2n7WimzESTHGQGQSEiSIV5VAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86f9248baa03958bd5ab311488689c9261978ca52f5111f9fb315398d6a8eba9","last_reissued_at":"2026-05-18T02:03:06.808239Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:06.808239Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1102.4340","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":"2026-05-18T02:03:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YoUGw1AEVL8j+UDjAQTKzNa5eituFKuy1+pyOR0vSVIPrRNCzby9VC8V79TpXj85W/sr2M+39PMMTPik0qlwDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:19:15.590648Z"},"content_sha256":"1eb433861db22118cecaf3a883087339f54576011b95971410a6d45343b09c49","schema_version":"1.0","event_id":"sha256:1eb433861db22118cecaf3a883087339f54576011b95971410a6d45343b09c49"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:Q34SJC5KAOKYXVNLGEKIQ2E4SJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mass models of the Milky Way","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Paul J. McMillan","submitted_at":"2011-02-21T21:03:14Z","abstract_excerpt":"We present a simple method for fitting parametrized mass models of the Milky Way to observational constraints. We take a Bayesian approach which allows us to take into account input from photometric and kinematic data, and expectations from theoretical modelling. This provides us with a best-fitting model, which is a suitable starting point for dynamical modelling. We also determine a probability density function on the properties of the model, which demonstrates that the mass distribution of the Galaxy remains very uncertain. For our choices of parametrization and constraints, we find disc sc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.4340","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":"2026-05-18T02:03:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QfRMvndGz46MY/3SW6UJzcgIpDv+gAaph3dcwKAA3gQU29H6LMBRVBHP4HWujp4k9ErPdsjyuT+k1vA4EvB/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T23:19:15.591293Z"},"content_sha256":"49be5b0fb5c4defdaf1999dfef10f53443338df351796bf3994b67ea989d512d","schema_version":"1.0","event_id":"sha256:49be5b0fb5c4defdaf1999dfef10f53443338df351796bf3994b67ea989d512d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ/bundle.json","state_url":"https://pith.science/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ/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":"2026-05-28T23:19:15Z","links":{"resolver":"https://pith.science/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ","bundle":"https://pith.science/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ/bundle.json","state":"https://pith.science/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q34SJC5KAOKYXVNLGEKIQ2E4SJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:Q34SJC5KAOKYXVNLGEKIQ2E4SJ","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":"eca5440ac15802a3de2b307c2b350fcbcc17c47275674ade32b8993477a70f1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-02-21T21:03:14Z","title_canon_sha256":"bb2db3d53b6cb3c6b646d6d408adea411ee97c25f60b2cd725230b571a55b0c4"},"schema_version":"1.0","source":{"id":"1102.4340","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.4340","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"arxiv_version","alias_value":"1102.4340v1","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.4340","created_at":"2026-05-18T02:03:06Z"},{"alias_kind":"pith_short_12","alias_value":"Q34SJC5KAOKY","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q34SJC5KAOKYXVNL","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q34SJC5K","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:49be5b0fb5c4defdaf1999dfef10f53443338df351796bf3994b67ea989d512d","target":"graph","created_at":"2026-05-18T02:03:06Z","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 a simple method for fitting parametrized mass models of the Milky Way to observational constraints. We take a Bayesian approach which allows us to take into account input from photometric and kinematic data, and expectations from theoretical modelling. This provides us with a best-fitting model, which is a suitable starting point for dynamical modelling. We also determine a probability density function on the properties of the model, which demonstrates that the mass distribution of the Galaxy remains very uncertain. For our choices of parametrization and constraints, we find disc sc","authors_text":"Paul J. McMillan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-02-21T21:03:14Z","title":"Mass models of the Milky Way"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.4340","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":"sha256:1eb433861db22118cecaf3a883087339f54576011b95971410a6d45343b09c49","target":"record","created_at":"2026-05-18T02:03:06Z","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":"eca5440ac15802a3de2b307c2b350fcbcc17c47275674ade32b8993477a70f1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-02-21T21:03:14Z","title_canon_sha256":"bb2db3d53b6cb3c6b646d6d408adea411ee97c25f60b2cd725230b571a55b0c4"},"schema_version":"1.0","source":{"id":"1102.4340","kind":"arxiv","version":1}},"canonical_sha256":"86f9248baa03958bd5ab311488689c9261978ca52f5111f9fb315398d6a8eba9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86f9248baa03958bd5ab311488689c9261978ca52f5111f9fb315398d6a8eba9","first_computed_at":"2026-05-18T02:03:06.808239Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:06.808239Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6RkK0i4W/QlV+qFIiQLPPRwPW8me5S4pPQ0BRtBsS6y8Cds7tPs4KsOTRewNK2n7WimzESTHGQGQSEiSIV5VAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:06.808760Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.4340","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1eb433861db22118cecaf3a883087339f54576011b95971410a6d45343b09c49","sha256:49be5b0fb5c4defdaf1999dfef10f53443338df351796bf3994b67ea989d512d"],"state_sha256":"836ad7fa129a88dc4b746638bad13d45f7948b16a06c9ecdc8f2488df4c8aa8c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WtVl7IdSEq+9J5m5GQme0pWXh99tOfF9RuOOGv81LKyGwkWcKpU/er/jQR2scOHcRyxbcHCNoXhoCAvjtYgbBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T23:19:15.596484Z","bundle_sha256":"1601030022ed78c89e2c1cedc32c60e4ca74e6440bf38436410d1a190903c553"}}