{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:WV3O5C7UNHMXFB4KKDEW2PDCHE","short_pith_number":"pith:WV3O5C7U","canonical_record":{"source":{"id":"astro-ph/0506345","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-15T14:54:10Z","cross_cats_sorted":[],"title_canon_sha256":"6e9874d077e7ba3ed02c43d8f8f7cbb2219fa673399b27ec781423067c99d231","abstract_canon_sha256":"d2b310d4695a4b2c44cdc6c51b7c036a75d3040d2ee5e8b699eae3f20741e7a6"},"schema_version":"1.0"},"canonical_sha256":"b576ee8bf469d972878a50c96d3c62393aeefd7338f2bd031e2b2e4e2e0f8cef","source":{"kind":"arxiv","id":"astro-ph/0506345","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0506345","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0506345v1","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0506345","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"pith_short_12","alias_value":"WV3O5C7UNHMX","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"pith_short_16","alias_value":"WV3O5C7UNHMXFB4K","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"pith_short_8","alias_value":"WV3O5C7U","created_at":"2026-07-04T16:52:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:WV3O5C7UNHMXFB4KKDEW2PDCHE","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0506345","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-15T14:54:10Z","cross_cats_sorted":[],"title_canon_sha256":"6e9874d077e7ba3ed02c43d8f8f7cbb2219fa673399b27ec781423067c99d231","abstract_canon_sha256":"d2b310d4695a4b2c44cdc6c51b7c036a75d3040d2ee5e8b699eae3f20741e7a6"},"schema_version":"1.0"},"canonical_sha256":"b576ee8bf469d972878a50c96d3c62393aeefd7338f2bd031e2b2e4e2e0f8cef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:52:33.840226Z","signature_b64":"vmpSOXsRDSJGZlfNYLCBLzz97id9Qdk0WTRvm5SP4XpIQP4ryjdxZA0Tks921x9M2wIu4hZpNl7D6udvzI/MAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b576ee8bf469d972878a50c96d3c62393aeefd7338f2bd031e2b2e4e2e0f8cef","last_reissued_at":"2026-07-04T16:52:33.839799Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:52:33.839799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0506345","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":"2026-07-04T16:52:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lW5cwZ7qqkt22Q9XEqZWWnbwfdjibkVVtPF7fsig5D+aPhv8xqj1AHPleYTgt5WHEnDYbcdQpWDj7Ag7AJ0xAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:59:58.558762Z"},"content_sha256":"41804152e4bc174eb7731ea411414f2f76d64e30bba8485adf71a1feb1137d65","schema_version":"1.0","event_id":"sha256:41804152e4bc174eb7731ea411414f2f76d64e30bba8485adf71a1feb1137d65"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:WV3O5C7UNHMXFB4KKDEW2PDCHE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Dark Halo of NGC 5963 as a Constraint on Dark Matter Self-Interaction at the Low Velocity Regime","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"F. J. Sanchez-Salcedo (IA-UNAM, Mexico City)","submitted_at":"2005-06-15T14:54:10Z","abstract_excerpt":"Self-interacting dark matter has been proposed as a hypothesis to explain the shallow central slopes of the density profiles of dark matter halos in galaxies. In order to be consistent with observational studies at scales of galaxy clusters, the cross section should scale inversely with the velocity of collision. In this paper we consider the mass density profile of the halo of the low surface brightness (LSB) galaxy NGC 5963 to place an upper limit on the dark matter cross section for collisions with velocities $\\sim 150$ km s$^{-1}$, i.e. at the low velocity regime. After calibrating against"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0506345","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0506345/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:52:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tfamqvXfRKksq0uNsd6Pb0Fq69OxnmdmLOa5rhDs6E8UEQH7pNnFxVMaWtBAgRPYecehERaF2/x9Em+hN6EODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:59:58.559261Z"},"content_sha256":"dbea6bc69cc6c24e4a346e2c708bdb9009e6d1fc9182d90611456d361113ab6c","schema_version":"1.0","event_id":"sha256:dbea6bc69cc6c24e4a346e2c708bdb9009e6d1fc9182d90611456d361113ab6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE/bundle.json","state_url":"https://pith.science/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE/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":"2026-08-03T16:59:58Z","links":{"resolver":"https://pith.science/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE","bundle":"https://pith.science/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE/bundle.json","state":"https://pith.science/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WV3O5C7UNHMXFB4KKDEW2PDCHE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:WV3O5C7UNHMXFB4KKDEW2PDCHE","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":"d2b310d4695a4b2c44cdc6c51b7c036a75d3040d2ee5e8b699eae3f20741e7a6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-15T14:54:10Z","title_canon_sha256":"6e9874d077e7ba3ed02c43d8f8f7cbb2219fa673399b27ec781423067c99d231"},"schema_version":"1.0","source":{"id":"astro-ph/0506345","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0506345","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0506345v1","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0506345","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"pith_short_12","alias_value":"WV3O5C7UNHMX","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"pith_short_16","alias_value":"WV3O5C7UNHMXFB4K","created_at":"2026-07-04T16:52:33Z"},{"alias_kind":"pith_short_8","alias_value":"WV3O5C7U","created_at":"2026-07-04T16:52:33Z"}],"graph_snapshots":[{"event_id":"sha256:dbea6bc69cc6c24e4a346e2c708bdb9009e6d1fc9182d90611456d361113ab6c","target":"graph","created_at":"2026-07-04T16:52:33Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0506345/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Self-interacting dark matter has been proposed as a hypothesis to explain the shallow central slopes of the density profiles of dark matter halos in galaxies. In order to be consistent with observational studies at scales of galaxy clusters, the cross section should scale inversely with the velocity of collision. In this paper we consider the mass density profile of the halo of the low surface brightness (LSB) galaxy NGC 5963 to place an upper limit on the dark matter cross section for collisions with velocities $\\sim 150$ km s$^{-1}$, i.e. at the low velocity regime. After calibrating against","authors_text":"F. J. Sanchez-Salcedo (IA-UNAM, Mexico City)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-06-15T14:54:10Z","title":"The Dark Halo of NGC 5963 as a Constraint on Dark Matter Self-Interaction at the Low Velocity Regime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0506345","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":"sha256:41804152e4bc174eb7731ea411414f2f76d64e30bba8485adf71a1feb1137d65","target":"record","created_at":"2026-07-04T16:52:33Z","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":"d2b310d4695a4b2c44cdc6c51b7c036a75d3040d2ee5e8b699eae3f20741e7a6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-15T14:54:10Z","title_canon_sha256":"6e9874d077e7ba3ed02c43d8f8f7cbb2219fa673399b27ec781423067c99d231"},"schema_version":"1.0","source":{"id":"astro-ph/0506345","kind":"arxiv","version":1}},"canonical_sha256":"b576ee8bf469d972878a50c96d3c62393aeefd7338f2bd031e2b2e4e2e0f8cef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b576ee8bf469d972878a50c96d3c62393aeefd7338f2bd031e2b2e4e2e0f8cef","first_computed_at":"2026-07-04T16:52:33.839799Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:52:33.839799Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vmpSOXsRDSJGZlfNYLCBLzz97id9Qdk0WTRvm5SP4XpIQP4ryjdxZA0Tks921x9M2wIu4hZpNl7D6udvzI/MAA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:52:33.840226Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0506345","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41804152e4bc174eb7731ea411414f2f76d64e30bba8485adf71a1feb1137d65","sha256:dbea6bc69cc6c24e4a346e2c708bdb9009e6d1fc9182d90611456d361113ab6c"],"state_sha256":"4734049f0ace5b9710dda150928ba590348afac73f255b9593279bffd993ce84"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FgoLo+o0Aubfo4ygvxtlH7ttV6Fza0ked9h2fVcZvpJClEaC5G69Vyo9Kn/r3bhxJFnGU6MSFyWdONDjJk1WAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:59:58.564371Z","bundle_sha256":"dc141d383763dd851a8826cf6162cb4f3de418bd8d6a3d355ca62c0daa9e75b6"}}