{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:AKHHC5M2NI33UXFUGIONUOVXGX","short_pith_number":"pith:AKHHC5M2","canonical_record":{"source":{"id":"astro-ph/0503657","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-30T13:45:17Z","cross_cats_sorted":[],"title_canon_sha256":"76189d8cc19e68e98dfeb21d8d71c8fee71f072999568bb775ad3c3ac3021b3c","abstract_canon_sha256":"3fee92e9d3f4386494fdc0a734d59188a075ea6c5aba7d956dd3f2ba594db9d3"},"schema_version":"1.0"},"canonical_sha256":"028e71759a6a37ba5cb4321cda3ab735feefec86714c1a0530a56955e810c233","source":{"kind":"arxiv","id":"astro-ph/0503657","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0503657","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0503657v1","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0503657","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"pith_short_12","alias_value":"AKHHC5M2NI33","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"AKHHC5M2NI33UXFU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"AKHHC5M2","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:AKHHC5M2NI33UXFUGIONUOVXGX","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0503657","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-30T13:45:17Z","cross_cats_sorted":[],"title_canon_sha256":"76189d8cc19e68e98dfeb21d8d71c8fee71f072999568bb775ad3c3ac3021b3c","abstract_canon_sha256":"3fee92e9d3f4386494fdc0a734d59188a075ea6c5aba7d956dd3f2ba594db9d3"},"schema_version":"1.0"},"canonical_sha256":"028e71759a6a37ba5cb4321cda3ab735feefec86714c1a0530a56955e810c233","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:31.533451Z","signature_b64":"86iNoyUoTRVkue9e5d5r1NQBK2SlqiffGGZ5i5EaPmEq6eYOYWTHDljzZ+X3jnftWqapjfVXwxXc2FDBMjJJBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"028e71759a6a37ba5cb4321cda3ab735feefec86714c1a0530a56955e810c233","last_reissued_at":"2026-05-18T01:07:31.532765Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:31.532765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0503657","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":"2026-05-18T01:07:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6G0gaAD3IGyibu02gOhgiO2x1HsbmWT2hJvxLDt+v9U4IvL4nqiB6bwXpxpHevXEWAdohK+h6LzItQX3THDxBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T01:10:57.867483Z"},"content_sha256":"0cb77406a828bdb8cd1ba5bfc2a23684e3e91a8d37ec124fd926cf2acae28d86","schema_version":"1.0","event_id":"sha256:0cb77406a828bdb8cd1ba5bfc2a23684e3e91a8d37ec124fd926cf2acae28d86"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:AKHHC5M2NI33UXFUGIONUOVXGX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Are rotation curves in NGC 6946 and the Milky Way magnetically supported?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Eduardo Battaner & Estrella Florido","submitted_at":"2005-03-30T13:45:17Z","abstract_excerpt":"Following the model of magnetically supported rotation of spiral galaxies, the inner disk rotation is dominated by gravity but magnetism is not negligible at radii where the rotation curve becomes flat, and indeed becomes dominant at very large radii. Values of the order of 1 $\\mu$G, or even less, produce a centripetal force when the absolute value of the slope of the curve [$B_\\phi$, R] (azimuthal field strength versus radius) is less than $R^{-1}$. The $R^{-1}$-profile is called the critical profile. From this hypothesis, the following is to be expected: at large radii, a ``subcritical'' pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0503657","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":"2026-05-18T01:07:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qMMkze+y0b1H1IzC9OQ3mMZdHBQyELTI8VDJVbjG+0IO+d06dP5MIp1ZxKxJ3FdQJWnxIUR0DopENfczRBeqCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T01:10:57.867822Z"},"content_sha256":"45b89b13491ccefddf1bd12a6e3c4fbac152f52920f94fd8ee94aec0723e9b59","schema_version":"1.0","event_id":"sha256:45b89b13491ccefddf1bd12a6e3c4fbac152f52920f94fd8ee94aec0723e9b59"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AKHHC5M2NI33UXFUGIONUOVXGX/bundle.json","state_url":"https://pith.science/pith/AKHHC5M2NI33UXFUGIONUOVXGX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AKHHC5M2NI33UXFUGIONUOVXGX/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":"2026-06-28T01:10:57Z","links":{"resolver":"https://pith.science/pith/AKHHC5M2NI33UXFUGIONUOVXGX","bundle":"https://pith.science/pith/AKHHC5M2NI33UXFUGIONUOVXGX/bundle.json","state":"https://pith.science/pith/AKHHC5M2NI33UXFUGIONUOVXGX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AKHHC5M2NI33UXFUGIONUOVXGX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:AKHHC5M2NI33UXFUGIONUOVXGX","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":"3fee92e9d3f4386494fdc0a734d59188a075ea6c5aba7d956dd3f2ba594db9d3","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-30T13:45:17Z","title_canon_sha256":"76189d8cc19e68e98dfeb21d8d71c8fee71f072999568bb775ad3c3ac3021b3c"},"schema_version":"1.0","source":{"id":"astro-ph/0503657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0503657","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0503657v1","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0503657","created_at":"2026-05-18T01:07:31Z"},{"alias_kind":"pith_short_12","alias_value":"AKHHC5M2NI33","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"AKHHC5M2NI33UXFU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"AKHHC5M2","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:45b89b13491ccefddf1bd12a6e3c4fbac152f52920f94fd8ee94aec0723e9b59","target":"graph","created_at":"2026-05-18T01:07:31Z","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":"Following the model of magnetically supported rotation of spiral galaxies, the inner disk rotation is dominated by gravity but magnetism is not negligible at radii where the rotation curve becomes flat, and indeed becomes dominant at very large radii. Values of the order of 1 $\\mu$G, or even less, produce a centripetal force when the absolute value of the slope of the curve [$B_\\phi$, R] (azimuthal field strength versus radius) is less than $R^{-1}$. The $R^{-1}$-profile is called the critical profile. From this hypothesis, the following is to be expected: at large radii, a ``subcritical'' pro","authors_text":"Eduardo Battaner & Estrella Florido","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-03-30T13:45:17Z","title":"Are rotation curves in NGC 6946 and the Milky Way magnetically supported?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0503657","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":"sha256:0cb77406a828bdb8cd1ba5bfc2a23684e3e91a8d37ec124fd926cf2acae28d86","target":"record","created_at":"2026-05-18T01:07:31Z","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":"3fee92e9d3f4386494fdc0a734d59188a075ea6c5aba7d956dd3f2ba594db9d3","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-03-30T13:45:17Z","title_canon_sha256":"76189d8cc19e68e98dfeb21d8d71c8fee71f072999568bb775ad3c3ac3021b3c"},"schema_version":"1.0","source":{"id":"astro-ph/0503657","kind":"arxiv","version":1}},"canonical_sha256":"028e71759a6a37ba5cb4321cda3ab735feefec86714c1a0530a56955e810c233","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"028e71759a6a37ba5cb4321cda3ab735feefec86714c1a0530a56955e810c233","first_computed_at":"2026-05-18T01:07:31.532765Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:31.532765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"86iNoyUoTRVkue9e5d5r1NQBK2SlqiffGGZ5i5EaPmEq6eYOYWTHDljzZ+X3jnftWqapjfVXwxXc2FDBMjJJBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:31.533451Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0503657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0cb77406a828bdb8cd1ba5bfc2a23684e3e91a8d37ec124fd926cf2acae28d86","sha256:45b89b13491ccefddf1bd12a6e3c4fbac152f52920f94fd8ee94aec0723e9b59"],"state_sha256":"91155a9f70f19b6e2b721a2d1d6ca20bf443ef2d139adf81827a9f4d707b2b20"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"suztytIXfb4Nw7i5WnDxaqvde6aaaTeP7ohSpGGDjBMAyCG16TVAEbKYcRyAssbfB9/rp64cvnHTbhxPejBfBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T01:10:57.869950Z","bundle_sha256":"36ffe4dbb499752cb2a477b42b39084b985eaba9fb9bcb1a7431fe50ab637864"}}