{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:ZO7YVKBMDOSLSNEW47NICJUSTN","short_pith_number":"pith:ZO7YVKBM","canonical_record":{"source":{"id":"hep-ph/0503065","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2005-03-07T18:12:07Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"12315f777feb89727ee86502740e45afd786220ec8be26f1972118a31620cad5","abstract_canon_sha256":"714da149c2d0bd230d732644edf551fe0fbee3a580819d699a17c62ab67fa4a6"},"schema_version":"1.0"},"canonical_sha256":"cbbf8aa82c1ba4b93496e7da8126929b5c329993e5881da05697a4999b00f81b","source":{"kind":"arxiv","id":"hep-ph/0503065","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0503065","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0503065v1","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0503065","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"pith_short_12","alias_value":"ZO7YVKBMDOSL","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"pith_short_16","alias_value":"ZO7YVKBMDOSLSNEW","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"pith_short_8","alias_value":"ZO7YVKBM","created_at":"2026-07-04T15:22:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:ZO7YVKBMDOSLSNEW47NICJUSTN","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/0503065","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2005-03-07T18:12:07Z","cross_cats_sorted":["astro-ph"],"title_canon_sha256":"12315f777feb89727ee86502740e45afd786220ec8be26f1972118a31620cad5","abstract_canon_sha256":"714da149c2d0bd230d732644edf551fe0fbee3a580819d699a17c62ab67fa4a6"},"schema_version":"1.0"},"canonical_sha256":"cbbf8aa82c1ba4b93496e7da8126929b5c329993e5881da05697a4999b00f81b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:22:25.452078Z","signature_b64":"7AYYhNCNUjtvay482v/RwzRU9PdttUEhxtJR/0b+UZGCGWxx4sFjN0I05+s+IzVOJH+zqHzcF7FgsSBTJqtNAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cbbf8aa82c1ba4b93496e7da8126929b5c329993e5881da05697a4999b00f81b","last_reissued_at":"2026-07-04T15:22:25.451633Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:22:25.451633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/0503065","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":"2026-07-04T15:22:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AO467yUdeW6DwCs/ipTnSBn0ZLlCOzcduAP1UIbWS/cD6uoM8FL2HvNVJ8zjAdF/Au6H4oG78JOFZ4k+Vq4CAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:04:00.906143Z"},"content_sha256":"8d69a6328c43c3df2a8d4cf86dfa7d7ffe0e71db7d15a4d3d7ae7e13e2ba5031","schema_version":"1.0","event_id":"sha256:8d69a6328c43c3df2a8d4cf86dfa7d7ffe0e71db7d15a4d3d7ae7e13e2ba5031"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:ZO7YVKBMDOSLSNEW47NICJUSTN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The $\\nu$MSM, Dark Matter and Neutrino Masses","license":"","headline":"","cross_cats":["astro-ph"],"primary_cat":"hep-ph","authors_text":"Mikhail Shaposhnikov, Steve Blanchet, Takehiko Asaka","submitted_at":"2005-03-07T18:12:07Z","abstract_excerpt":"We investigate an extension of the Minimal Standard Model by right-handed neutrinos (the $\\nu$MSM) to incorporate neutrino masses consistent with oscillation experiments. Within this theory, the only candidates for dark matter particles are sterile right-handed neutrinos with masses of a few keV. Requiring that these neutrinos explain entirely the (warm) dark matter, we find that their number is at least three. We show that, in the minimal choice of three sterile neutrinos, the mass of the lightest active neutrino is smaller than ${\\cal O}(10^{-5})$ eV, which excludes the degenerate mass spect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0503065","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/hep-ph/0503065/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":"2026-07-04T15:22:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smFSVte6J/rUmDHQ/XoJsV3TnuOCjjoFTaGQXXgyEH8wI8IoSd61EUW3y6DkkfC0gQ2b3oPwAJKYH7Yl+jbUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:04:00.906650Z"},"content_sha256":"639ba584c7c10b5653fda379eca2c8961b57d862c2e738e8beaeef3e0fd7712b","schema_version":"1.0","event_id":"sha256:639ba584c7c10b5653fda379eca2c8961b57d862c2e738e8beaeef3e0fd7712b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZO7YVKBMDOSLSNEW47NICJUSTN/bundle.json","state_url":"https://pith.science/pith/ZO7YVKBMDOSLSNEW47NICJUSTN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZO7YVKBMDOSLSNEW47NICJUSTN/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":"2026-08-03T22:04:00Z","links":{"resolver":"https://pith.science/pith/ZO7YVKBMDOSLSNEW47NICJUSTN","bundle":"https://pith.science/pith/ZO7YVKBMDOSLSNEW47NICJUSTN/bundle.json","state":"https://pith.science/pith/ZO7YVKBMDOSLSNEW47NICJUSTN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZO7YVKBMDOSLSNEW47NICJUSTN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:ZO7YVKBMDOSLSNEW47NICJUSTN","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":"714da149c2d0bd230d732644edf551fe0fbee3a580819d699a17c62ab67fa4a6","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2005-03-07T18:12:07Z","title_canon_sha256":"12315f777feb89727ee86502740e45afd786220ec8be26f1972118a31620cad5"},"schema_version":"1.0","source":{"id":"hep-ph/0503065","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/0503065","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0503065v1","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0503065","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"pith_short_12","alias_value":"ZO7YVKBMDOSL","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"pith_short_16","alias_value":"ZO7YVKBMDOSLSNEW","created_at":"2026-07-04T15:22:25Z"},{"alias_kind":"pith_short_8","alias_value":"ZO7YVKBM","created_at":"2026-07-04T15:22:25Z"}],"graph_snapshots":[{"event_id":"sha256:639ba584c7c10b5653fda379eca2c8961b57d862c2e738e8beaeef3e0fd7712b","target":"graph","created_at":"2026-07-04T15:22:25Z","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/hep-ph/0503065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate an extension of the Minimal Standard Model by right-handed neutrinos (the $\\nu$MSM) to incorporate neutrino masses consistent with oscillation experiments. Within this theory, the only candidates for dark matter particles are sterile right-handed neutrinos with masses of a few keV. Requiring that these neutrinos explain entirely the (warm) dark matter, we find that their number is at least three. We show that, in the minimal choice of three sterile neutrinos, the mass of the lightest active neutrino is smaller than ${\\cal O}(10^{-5})$ eV, which excludes the degenerate mass spect","authors_text":"Mikhail Shaposhnikov, Steve Blanchet, Takehiko Asaka","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"2005-03-07T18:12:07Z","title":"The $\\nu$MSM, Dark Matter and Neutrino Masses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0503065","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":"sha256:8d69a6328c43c3df2a8d4cf86dfa7d7ffe0e71db7d15a4d3d7ae7e13e2ba5031","target":"record","created_at":"2026-07-04T15:22:25Z","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":"714da149c2d0bd230d732644edf551fe0fbee3a580819d699a17c62ab67fa4a6","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"2005-03-07T18:12:07Z","title_canon_sha256":"12315f777feb89727ee86502740e45afd786220ec8be26f1972118a31620cad5"},"schema_version":"1.0","source":{"id":"hep-ph/0503065","kind":"arxiv","version":1}},"canonical_sha256":"cbbf8aa82c1ba4b93496e7da8126929b5c329993e5881da05697a4999b00f81b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbbf8aa82c1ba4b93496e7da8126929b5c329993e5881da05697a4999b00f81b","first_computed_at":"2026-07-04T15:22:25.451633Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:22:25.451633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7AYYhNCNUjtvay482v/RwzRU9PdttUEhxtJR/0b+UZGCGWxx4sFjN0I05+s+IzVOJH+zqHzcF7FgsSBTJqtNAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:22:25.452078Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/0503065","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d69a6328c43c3df2a8d4cf86dfa7d7ffe0e71db7d15a4d3d7ae7e13e2ba5031","sha256:639ba584c7c10b5653fda379eca2c8961b57d862c2e738e8beaeef3e0fd7712b"],"state_sha256":"2ceb4f0e1b89d558ccf1e414a99c940c26a7714d82d7f8bbca6e8c1a4c3c36e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WOeI+4f/g/XUdC/OnXIXrdBhRY/S4PQe9gw518HTrko1o/g3FswoUGP2d527SfIYIEkFbwJMyU0QTKuMpH4FBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T22:04:00.910236Z","bundle_sha256":"dac67e8f1e439ad7b574b5fb41053607f27075822c6189e172f0aea2184e0b12"}}