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We quantify how a tiny fraction f_BH of PBHs could restrict the parameter space available to thermal particle dark matter, limiting the s-wave annihilation cross section to values ≲ 10^{-30} cm³/s (mχ/100 GeV) (f_BH/10^{-6})^{-3} if PBHs are typically heavier than ∼10^{-10} M_⊙","weakest_assumption":"The assumption that PBHs are surrounded by extremely dense halos of self-annihilating particles built up during radiation domination, as modeled in prior parts of this work series."}},"verdict_id":"f986e4da-d8bb-4d1f-bb5e-26d48f412e18"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:0a2d54dec353c13a97c5ec3d1aae29876a788fc8d783aad8ff94159310d6fb48","target":"record","created_at":"2026-07-10T01:19:43Z","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":"8c258f79415b83d6cd0421a0ecd9f60e091fe0a37f4c859eb59e243b961aa6aa","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2026-04-20T09:30:49Z","title_canon_sha256":"3f3f5366552ad10ff8c687fcf4bf9fce62c6ba89ea4041d6aa4eb45d395aaa93"},"schema_version":"1.0","source":{"id":"2604.18007","kind":"arxiv","version":1}},"canonical_sha256":"b0ff8cca3d8b1a697ec6d8d3a202867bfc1757272822ced83e233a2d7b0a1fc8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0ff8cca3d8b1a697ec6d8d3a202867bfc1757272822ced83e233a2d7b0a1fc8","first_computed_at":"2026-07-10T01:19:43.694167Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-10T01:19:43.694167Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gXFDBU4bPjO1O+aXuMDxmj9YJkYcv9e5irWgPhK+YrX7yateam3qt59goF5mogffWACARxEM7ltf83RZafayCQ==","signature_status":"signed_v1","signed_at":"2026-07-10T01:19:43.694703Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.18007","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a2d54dec353c13a97c5ec3d1aae29876a788fc8d783aad8ff94159310d6fb48","sha256:074d1b6357c99d01521213147762cb631773eb3de64158a17c4e7cc9c7104190"],"state_sha256":"5f5f241d15d7568356904aace1308e7bae52d22236424ab6969cf8817d9f5080"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9opfB/EJlChVGrOZaA7oLISQFee/QnRoMGXV+b/QseQPbWidm2N+ZFvP75jBUImAe6GfRWpezE9x3wJdj/KGBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T14:24:39.481659Z","bundle_sha256":"89509d2d571ae6a4307a8869bcb99b523bc8e367788316b0adf1500647108045"}}