{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:UDUPA7R5V6PTI7RFEJHA3C7KVZ","short_pith_number":"pith:UDUPA7R5","canonical_record":{"source":{"id":"2006.11111","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-19T12:51:29Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"1af2ed27846de74bb51af89229c07f2388564af649ada19e5a542b68ea819e26","abstract_canon_sha256":"2d5ad4dec40673f0a87e7bd83a3a7b037e31d9cd4aae95fe6d595a692349527e"},"schema_version":"1.0"},"canonical_sha256":"a0e8f07e3daf9f347e25224e0d8beaae5c4412998ba82a0a0922d6c81009ee44","source":{"kind":"arxiv","id":"2006.11111","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.11111","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"arxiv_version","alias_value":"2006.11111v4","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.11111","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"pith_short_12","alias_value":"UDUPA7R5V6PT","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"pith_short_16","alias_value":"UDUPA7R5V6PTI7RF","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"pith_short_8","alias_value":"UDUPA7R5","created_at":"2026-07-05T01:57:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:UDUPA7R5V6PTI7RFEJHA3C7KVZ","target":"record","payload":{"canonical_record":{"source":{"id":"2006.11111","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-19T12:51:29Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"1af2ed27846de74bb51af89229c07f2388564af649ada19e5a542b68ea819e26","abstract_canon_sha256":"2d5ad4dec40673f0a87e7bd83a3a7b037e31d9cd4aae95fe6d595a692349527e"},"schema_version":"1.0"},"canonical_sha256":"a0e8f07e3daf9f347e25224e0d8beaae5c4412998ba82a0a0922d6c81009ee44","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:57:52.038812Z","signature_b64":"Yo6M7lVnaGG+gIgQIHvSI74QwDLtLFmsMtiCVP4cJEn7lW8u29VrVFbplya0YgGQngYgl/bdKWZC6TYQk111Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0e8f07e3daf9f347e25224e0d8beaae5c4412998ba82a0a0922d6c81009ee44","last_reissued_at":"2026-07-05T01:57:52.038399Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:57:52.038399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.11111","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:57:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DTA/olAO+hfD0WVfyKotFO0pka3tAD0CPEFxtmgKks4wTo0L7E0H6v+u0e5DjkhlVCAqmA3RP8jLgETf/9hnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:10:00.766608Z"},"content_sha256":"887e3e265c5860d09317b8c0d447176393abc16249a0c23d711f933c2ff0f90a","schema_version":"1.0","event_id":"sha256:887e3e265c5860d09317b8c0d447176393abc16249a0c23d711f933c2ff0f90a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:UDUPA7R5V6PTI7RFEJHA3C7KVZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fuzzy Dark Matter and Dark Matter Halo Cores","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Andreas Burkert","submitted_at":"2020-06-19T12:51:29Z","abstract_excerpt":"Whereas cold dark matter (CDM) simulations predict central dark matter cusps with densities that diverge as $\\rho$(r)$\\sim$ 1/r observations often indicate constant density cores with finite central densities $\\rho_0$ and a flat density distribution within a core radius r$_0$. This paper investigates whether this core-cusp problem can be solved by fuzzy dark matter (FDM), a hypothetical particle with a mass of order m$\\approx$10$^{-22}$eV and a corresponding de Broglie wavelength on astrophysical scales. We show that galaxies with CDM halo virial masses M$_{vir} \\leq 10^{11}$M$_{\\odot}$ follow"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.11111","kind":"arxiv","version":4},"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/2006.11111/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":"2026-07-05T01:57:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ljoN/auVL2SPu6vCq1irGUMMEzwfViYrjP0Zk8tvkflBN+1hpI91dPKg0oTbTm9soorDIXFyARDUHinPJqmiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:10:00.767133Z"},"content_sha256":"a17e22bb928822024386ca7597d9bb7d87230db863ff0db0bf546e59942c001b","schema_version":"1.0","event_id":"sha256:a17e22bb928822024386ca7597d9bb7d87230db863ff0db0bf546e59942c001b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ/bundle.json","state_url":"https://pith.science/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ/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":"2026-08-17T18:10:00Z","links":{"resolver":"https://pith.science/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ","bundle":"https://pith.science/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ/bundle.json","state":"https://pith.science/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UDUPA7R5V6PTI7RFEJHA3C7KVZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:UDUPA7R5V6PTI7RFEJHA3C7KVZ","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":"2d5ad4dec40673f0a87e7bd83a3a7b037e31d9cd4aae95fe6d595a692349527e","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-19T12:51:29Z","title_canon_sha256":"1af2ed27846de74bb51af89229c07f2388564af649ada19e5a542b68ea819e26"},"schema_version":"1.0","source":{"id":"2006.11111","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.11111","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"arxiv_version","alias_value":"2006.11111v4","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.11111","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"pith_short_12","alias_value":"UDUPA7R5V6PT","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"pith_short_16","alias_value":"UDUPA7R5V6PTI7RF","created_at":"2026-07-05T01:57:52Z"},{"alias_kind":"pith_short_8","alias_value":"UDUPA7R5","created_at":"2026-07-05T01:57:52Z"}],"graph_snapshots":[{"event_id":"sha256:a17e22bb928822024386ca7597d9bb7d87230db863ff0db0bf546e59942c001b","target":"graph","created_at":"2026-07-05T01:57:52Z","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/2006.11111/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Whereas cold dark matter (CDM) simulations predict central dark matter cusps with densities that diverge as $\\rho$(r)$\\sim$ 1/r observations often indicate constant density cores with finite central densities $\\rho_0$ and a flat density distribution within a core radius r$_0$. This paper investigates whether this core-cusp problem can be solved by fuzzy dark matter (FDM), a hypothetical particle with a mass of order m$\\approx$10$^{-22}$eV and a corresponding de Broglie wavelength on astrophysical scales. We show that galaxies with CDM halo virial masses M$_{vir} \\leq 10^{11}$M$_{\\odot}$ follow","authors_text":"Andreas Burkert","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-19T12:51:29Z","title":"Fuzzy Dark Matter and Dark Matter Halo Cores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.11111","kind":"arxiv","version":4},"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":"sha256:887e3e265c5860d09317b8c0d447176393abc16249a0c23d711f933c2ff0f90a","target":"record","created_at":"2026-07-05T01:57:52Z","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":"2d5ad4dec40673f0a87e7bd83a3a7b037e31d9cd4aae95fe6d595a692349527e","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-06-19T12:51:29Z","title_canon_sha256":"1af2ed27846de74bb51af89229c07f2388564af649ada19e5a542b68ea819e26"},"schema_version":"1.0","source":{"id":"2006.11111","kind":"arxiv","version":4}},"canonical_sha256":"a0e8f07e3daf9f347e25224e0d8beaae5c4412998ba82a0a0922d6c81009ee44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0e8f07e3daf9f347e25224e0d8beaae5c4412998ba82a0a0922d6c81009ee44","first_computed_at":"2026-07-05T01:57:52.038399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:57:52.038399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yo6M7lVnaGG+gIgQIHvSI74QwDLtLFmsMtiCVP4cJEn7lW8u29VrVFbplya0YgGQngYgl/bdKWZC6TYQk111Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:57:52.038812Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.11111","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:887e3e265c5860d09317b8c0d447176393abc16249a0c23d711f933c2ff0f90a","sha256:a17e22bb928822024386ca7597d9bb7d87230db863ff0db0bf546e59942c001b"],"state_sha256":"1bfa102c16c080dff4ee21de5512e5a321fdedc437ae3b1ade1e5b5e6cd72824"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T3w8wnIv8B/OboUMVuMCoITJxPB7yspLuQYbdw/oHBMazR5NrjPATrB2BPHt54ENazIvpM26RNJiJokzZY+3BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T18:10:00.772216Z","bundle_sha256":"5026e4fe153cdd16a3eca7828cf1dc2829027e9fc1037afa793ed69227c089bf"}}