{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:BKXP4JYVMAEJJ6S2RRAXVVBRFX","short_pith_number":"pith:BKXP4JYV","canonical_record":{"source":{"id":"astro-ph/0406211","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-06-08T18:33:43Z","cross_cats_sorted":[],"title_canon_sha256":"d91169b2769340973589239313d03f202f41783fdb8f5d795df2220c2c0e8f38","abstract_canon_sha256":"df928e38331d2c677434e517aa0eed8add107b9ed17abbad10d4e338f8d46105"},"schema_version":"1.0"},"canonical_sha256":"0aaefe2715600894fa5a8c417ad4312dfefcf093e342136db6d4e9e86bb7c51e","source":{"kind":"arxiv","id":"astro-ph/0406211","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0406211","created_at":"2026-05-18T01:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0406211v1","created_at":"2026-05-18T01:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0406211","created_at":"2026-05-18T01:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"BKXP4JYVMAEJ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"BKXP4JYVMAEJJ6S2","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"BKXP4JYV","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:BKXP4JYVMAEJJ6S2RRAXVVBRFX","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0406211","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2004-06-08T18:33:43Z","cross_cats_sorted":[],"title_canon_sha256":"d91169b2769340973589239313d03f202f41783fdb8f5d795df2220c2c0e8f38","abstract_canon_sha256":"df928e38331d2c677434e517aa0eed8add107b9ed17abbad10d4e338f8d46105"},"schema_version":"1.0"},"canonical_sha256":"0aaefe2715600894fa5a8c417ad4312dfefcf093e342136db6d4e9e86bb7c51e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:36.999654Z","signature_b64":"m7ei2JgSZ0gl0WpGCQdJxRixk70p3kLemNekEqMmcSQC4hBPvGlIqNmilg+LcrJmh5duPOj3igZXBhXPoEN3AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0aaefe2715600894fa5a8c417ad4312dfefcf093e342136db6d4e9e86bb7c51e","last_reissued_at":"2026-05-18T01:40:36.998978Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:36.998978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0406211","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":"2026-05-18T01:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EtyiZGQSKjKcdF3kiOr4HkU0Rt7j1pBgqSe9DdLuvjLOn0VsV9kLFOWpp0i4coZvQSG5GbMs+FIvja/kG2f3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:27:19.998459Z"},"content_sha256":"963828b73f8d96b1fe6aec58c4f80aa7fae337ac61c84490594c22511526736c","schema_version":"1.0","event_id":"sha256:963828b73f8d96b1fe6aec58c4f80aa7fae337ac61c84490594c22511526736c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:BKXP4JYVMAEJJ6S2RRAXVVBRFX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kinematics of two dwarf galaxies in the NGC 6946 group","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Ayesha Begum, Jayaram N. Chengalur","submitted_at":"2004-06-08T18:33:43Z","abstract_excerpt":"We present high velocity resolution (~ 1.6 km/s) Giant Meterwave Radio Telescope (GMRT) HI 21 cm synthesis images of the dwarf galaxies KK98 250 and KK98 251, as well as optical broad band images of KK98 250. We find that, despite being faint (M_B <-14), both galaxies have regular velocity fields. In both cases the velocity fields are consistent with rigid body rotation. We derive rotation curves for the galaxies and fit mass models to them. For both galaxies, we find acceptable fits using isothermal halos while NFW halos provide a poor fit. Finally, we compile from literature a sample of gala"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0406211","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":"2026-05-18T01:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D5FHSIVqMZNXkrjbVtuav8/UD/PmZzu/AlXnIDnjbg/tY6Faqmw0cqOPqPs7YUOpPryCnMDTQmzCtzDYmvskDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:27:19.998814Z"},"content_sha256":"0e84e68232c0a5429ffcc8fe2e20405db889cb0317688d1cbac8c3e40f731a0e","schema_version":"1.0","event_id":"sha256:0e84e68232c0a5429ffcc8fe2e20405db889cb0317688d1cbac8c3e40f731a0e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX/bundle.json","state_url":"https://pith.science/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX/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":"2026-05-31T11:27:19Z","links":{"resolver":"https://pith.science/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX","bundle":"https://pith.science/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX/bundle.json","state":"https://pith.science/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BKXP4JYVMAEJJ6S2RRAXVVBRFX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:BKXP4JYVMAEJJ6S2RRAXVVBRFX","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":"df928e38331d2c677434e517aa0eed8add107b9ed17abbad10d4e338f8d46105","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-06-08T18:33:43Z","title_canon_sha256":"d91169b2769340973589239313d03f202f41783fdb8f5d795df2220c2c0e8f38"},"schema_version":"1.0","source":{"id":"astro-ph/0406211","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0406211","created_at":"2026-05-18T01:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0406211v1","created_at":"2026-05-18T01:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0406211","created_at":"2026-05-18T01:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"BKXP4JYVMAEJ","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"BKXP4JYVMAEJJ6S2","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"BKXP4JYV","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:0e84e68232c0a5429ffcc8fe2e20405db889cb0317688d1cbac8c3e40f731a0e","target":"graph","created_at":"2026-05-18T01:40:36Z","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 high velocity resolution (~ 1.6 km/s) Giant Meterwave Radio Telescope (GMRT) HI 21 cm synthesis images of the dwarf galaxies KK98 250 and KK98 251, as well as optical broad band images of KK98 250. We find that, despite being faint (M_B <-14), both galaxies have regular velocity fields. In both cases the velocity fields are consistent with rigid body rotation. We derive rotation curves for the galaxies and fit mass models to them. For both galaxies, we find acceptable fits using isothermal halos while NFW halos provide a poor fit. Finally, we compile from literature a sample of gala","authors_text":"Ayesha Begum, Jayaram N. Chengalur","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-06-08T18:33:43Z","title":"Kinematics of two dwarf galaxies in the NGC 6946 group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0406211","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":"sha256:963828b73f8d96b1fe6aec58c4f80aa7fae337ac61c84490594c22511526736c","target":"record","created_at":"2026-05-18T01:40:36Z","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":"df928e38331d2c677434e517aa0eed8add107b9ed17abbad10d4e338f8d46105","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-06-08T18:33:43Z","title_canon_sha256":"d91169b2769340973589239313d03f202f41783fdb8f5d795df2220c2c0e8f38"},"schema_version":"1.0","source":{"id":"astro-ph/0406211","kind":"arxiv","version":1}},"canonical_sha256":"0aaefe2715600894fa5a8c417ad4312dfefcf093e342136db6d4e9e86bb7c51e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0aaefe2715600894fa5a8c417ad4312dfefcf093e342136db6d4e9e86bb7c51e","first_computed_at":"2026-05-18T01:40:36.998978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:36.998978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m7ei2JgSZ0gl0WpGCQdJxRixk70p3kLemNekEqMmcSQC4hBPvGlIqNmilg+LcrJmh5duPOj3igZXBhXPoEN3AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:36.999654Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0406211","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:963828b73f8d96b1fe6aec58c4f80aa7fae337ac61c84490594c22511526736c","sha256:0e84e68232c0a5429ffcc8fe2e20405db889cb0317688d1cbac8c3e40f731a0e"],"state_sha256":"4c7c4ed0cdc2dff175cefb3a960f9f0a20ed9c2d0a0ab45087b6ca9b09b748f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x13V4Yq6YuksO7f3Lu12L4OkKzvzso4bjqgn8pEJxwMCgYYZ6O3W4DUV3trORIg/ljCI79kZCdD8tUvo73Y6DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T11:27:20.000686Z","bundle_sha256":"6ce8582c34432b494852fbc261e87510b5f8bebf6065d387db76d762e10b3689"}}