{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:K6WHJAP6SNUJ3VVAU2Z3YNH3C3","short_pith_number":"pith:K6WHJAP6","canonical_record":{"source":{"id":"1002.0819","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-03T19:02:59Z","cross_cats_sorted":[],"title_canon_sha256":"22800c99353cc954723dc8d8e0f73d4a997c01e3579f254a4d36fe123b332aa8","abstract_canon_sha256":"b5b0386c70977b064fe4c9e927d715577e36e6943156cb904974bf0ea2c8d918"},"schema_version":"1.0"},"canonical_sha256":"57ac7481fe93689dd6a0a6b3bc34fb16ee847646f202f94c61f1c2e518e17a11","source":{"kind":"arxiv","id":"1002.0819","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0819","created_at":"2026-05-18T02:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0819v3","created_at":"2026-05-18T02:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0819","created_at":"2026-05-18T02:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"K6WHJAP6SNUJ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"K6WHJAP6SNUJ3VVA","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"K6WHJAP6","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:K6WHJAP6SNUJ3VVAU2Z3YNH3C3","target":"record","payload":{"canonical_record":{"source":{"id":"1002.0819","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-03T19:02:59Z","cross_cats_sorted":[],"title_canon_sha256":"22800c99353cc954723dc8d8e0f73d4a997c01e3579f254a4d36fe123b332aa8","abstract_canon_sha256":"b5b0386c70977b064fe4c9e927d715577e36e6943156cb904974bf0ea2c8d918"},"schema_version":"1.0"},"canonical_sha256":"57ac7481fe93689dd6a0a6b3bc34fb16ee847646f202f94c61f1c2e518e17a11","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:20.041233Z","signature_b64":"GWx9Qf5YdMCm9UVaoB7kjHpCgjyZuUddFvQqY5U20EDTzB4hum9cGABviWfCaR738VKd5AVXoepq7DDMrgwiAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57ac7481fe93689dd6a0a6b3bc34fb16ee847646f202f94c61f1c2e518e17a11","last_reissued_at":"2026-05-18T02:09:20.040421Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:20.040421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.0819","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:09:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Aoi4B1/8cCnRJg3REPVAQFwcKGQYGaxWf5NayPXbVo+w35+/8yb0FSXTCte3NtXcsmqS30asOwgbT9243O5pAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:24:10.345019Z"},"content_sha256":"4ede765b67033f1af5eb98b3454b42f1ae3b197ef195e40dade767a44e3413a2","schema_version":"1.0","event_id":"sha256:4ede765b67033f1af5eb98b3454b42f1ae3b197ef195e40dade767a44e3413a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:K6WHJAP6SNUJ3VVAU2Z3YNH3C3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamical Models for NGC 6503 using a Markov Chain Monte Carlo Technique","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"David Puglielli, Lawrence M. Widrow, St\\'ephane Courteau","submitted_at":"2010-02-03T19:02:59Z","abstract_excerpt":"We use Bayesian statistics and Markov chain Monte Carlo (MCMC) techniques to construct dynamical models for the spiral galaxy NGC 6503. The constraints include surface brightness profiles which display a Freeman Type II structure; HI and ionized gas rotation curves; the stellar rotation, which is nearly coincident with the ionized gas curve; and the line of sight stellar dispersion, with a sigma-drop at the centre. The galaxy models consist of a Sersic bulge, an exponential disc with an optional inner truncation and a cosmologically motivated dark halo. The Bayesian/MCMC technique yields the j"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0819","kind":"arxiv","version":3},"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":"2026-05-18T02:09:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wxlNXX7xGxSAbQLmEyvXDamPejtrkAZXQfnOtADlcizBhvFckyxjwFlU/r/kqsmZzSSkZ4S89z10b8mDKTKWCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:24:10.345675Z"},"content_sha256":"4edd8e25a3c0f8db9a60e05ac9912d802bfcaa2c645e689036fae0144730f8c8","schema_version":"1.0","event_id":"sha256:4edd8e25a3c0f8db9a60e05ac9912d802bfcaa2c645e689036fae0144730f8c8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3/bundle.json","state_url":"https://pith.science/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3/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":"2026-05-27T19:24:10Z","links":{"resolver":"https://pith.science/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3","bundle":"https://pith.science/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3/bundle.json","state":"https://pith.science/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K6WHJAP6SNUJ3VVAU2Z3YNH3C3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:K6WHJAP6SNUJ3VVAU2Z3YNH3C3","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":"b5b0386c70977b064fe4c9e927d715577e36e6943156cb904974bf0ea2c8d918","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-03T19:02:59Z","title_canon_sha256":"22800c99353cc954723dc8d8e0f73d4a997c01e3579f254a4d36fe123b332aa8"},"schema_version":"1.0","source":{"id":"1002.0819","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.0819","created_at":"2026-05-18T02:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"1002.0819v3","created_at":"2026-05-18T02:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.0819","created_at":"2026-05-18T02:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"K6WHJAP6SNUJ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"K6WHJAP6SNUJ3VVA","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"K6WHJAP6","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:4edd8e25a3c0f8db9a60e05ac9912d802bfcaa2c645e689036fae0144730f8c8","target":"graph","created_at":"2026-05-18T02:09:20Z","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 use Bayesian statistics and Markov chain Monte Carlo (MCMC) techniques to construct dynamical models for the spiral galaxy NGC 6503. The constraints include surface brightness profiles which display a Freeman Type II structure; HI and ionized gas rotation curves; the stellar rotation, which is nearly coincident with the ionized gas curve; and the line of sight stellar dispersion, with a sigma-drop at the centre. The galaxy models consist of a Sersic bulge, an exponential disc with an optional inner truncation and a cosmologically motivated dark halo. The Bayesian/MCMC technique yields the j","authors_text":"David Puglielli, Lawrence M. Widrow, St\\'ephane Courteau","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-03T19:02:59Z","title":"Dynamical Models for NGC 6503 using a Markov Chain Monte Carlo Technique"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.0819","kind":"arxiv","version":3},"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":"sha256:4ede765b67033f1af5eb98b3454b42f1ae3b197ef195e40dade767a44e3413a2","target":"record","created_at":"2026-05-18T02:09:20Z","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":"b5b0386c70977b064fe4c9e927d715577e36e6943156cb904974bf0ea2c8d918","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-03T19:02:59Z","title_canon_sha256":"22800c99353cc954723dc8d8e0f73d4a997c01e3579f254a4d36fe123b332aa8"},"schema_version":"1.0","source":{"id":"1002.0819","kind":"arxiv","version":3}},"canonical_sha256":"57ac7481fe93689dd6a0a6b3bc34fb16ee847646f202f94c61f1c2e518e17a11","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57ac7481fe93689dd6a0a6b3bc34fb16ee847646f202f94c61f1c2e518e17a11","first_computed_at":"2026-05-18T02:09:20.040421Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:20.040421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GWx9Qf5YdMCm9UVaoB7kjHpCgjyZuUddFvQqY5U20EDTzB4hum9cGABviWfCaR738VKd5AVXoepq7DDMrgwiAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:20.041233Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.0819","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4ede765b67033f1af5eb98b3454b42f1ae3b197ef195e40dade767a44e3413a2","sha256:4edd8e25a3c0f8db9a60e05ac9912d802bfcaa2c645e689036fae0144730f8c8"],"state_sha256":"f7db40a8cb28a0e46710fa486c92c57a80b87880074336cacf6af19a9bafb5da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ecwVd9ywTozT9QKWVQufmgh1kThRUqHP72I3YDym+0fetTytTKdG+fl9F6yY39+XPXZNRQCaKAmw9fTx90MCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:24:10.348827Z","bundle_sha256":"50df618116fadb0dca675d24b8e212f49fba57270bb440c3ec1357634aef64c5"}}