{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:IBXXC746DAKARDXGYKA2PK6TZX","short_pith_number":"pith:IBXXC746","canonical_record":{"source":{"id":"1005.4802","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2010-05-26T12:58:06Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"22e2968d5258b0ce8b326910e4f360e60055e6c24b22291c9dd3361d62cfac82","abstract_canon_sha256":"cdc6981841abc50950340acf3a93a1eb9849553e64d1dc9edf0b65a04778f254"},"schema_version":"1.0"},"canonical_sha256":"406f717f9e1814088ee6c281a7abd3cddfa544503503de570f5a1e5f31a1f666","source":{"kind":"arxiv","id":"1005.4802","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.4802","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.4802v4","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.4802","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"IBXXC746DAKA","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"IBXXC746DAKARDXG","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"IBXXC746","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:IBXXC746DAKARDXGYKA2PK6TZX","target":"record","payload":{"canonical_record":{"source":{"id":"1005.4802","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2010-05-26T12:58:06Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"22e2968d5258b0ce8b326910e4f360e60055e6c24b22291c9dd3361d62cfac82","abstract_canon_sha256":"cdc6981841abc50950340acf3a93a1eb9849553e64d1dc9edf0b65a04778f254"},"schema_version":"1.0"},"canonical_sha256":"406f717f9e1814088ee6c281a7abd3cddfa544503503de570f5a1e5f31a1f666","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:56.036201Z","signature_b64":"v0ngmXMsznLyaUVK3W7oVXiWgFtqM38ng2wuE1rIibo44pyoE9RtTkRSdryQow4QNrrxCIoE0xRLSa5NG+/SAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"406f717f9e1814088ee6c281a7abd3cddfa544503503de570f5a1e5f31a1f666","last_reissued_at":"2026-05-18T02:23:56.035574Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:56.035574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.4802","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":"2026-05-18T02:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z+OwYqA+dSnnleANyqYoewPojuC50b215JYzM5G8OQ7OMlH20+bRsMrnG9QncGHIOkIVYoycTOW3I4bEChnsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:46:36.718206Z"},"content_sha256":"9b461e0476b2f2550e4b8f5df019327744d5fe5882642f02e2090b86e58e485a","schema_version":"1.0","event_id":"sha256:9b461e0476b2f2550e4b8f5df019327744d5fe5882642f02e2090b86e58e485a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:IBXXC746DAKARDXGYKA2PK6TZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Positronium Portal into Hidden Sector: A new Experiment to Search for Mirror Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"hep-ex","authors_text":"Alexander Belov, Andre Rubbia, Paolo Crivelli, Sergei Gninenko, Ulisse Gendotti","submitted_at":"2010-05-26T12:58:06Z","abstract_excerpt":"The understanding of the origin of dark matter has great importance for cosmology and particle physics. Several interesting extensions of the standard model dealing with solution of this problem motivate the concept of hidden sectors consisting of SU(3)xSU(2)_LxU(1)_Y singlet fields. Among these models, the mirror matter model is certainly one of the most interesting. The model explains the origin of parity violation in weak interactions, it could also explain the baryon asymmetry of the Universe and provide a natural ground for the explanation of dark matter. The mirror matter could have a po"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.4802","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":""},"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":"2026-05-18T02:23:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZPPV79B9IzE96/mzdGXpSHvln++d8Sj8xffit0o9k0bnQX4F43HdhfU5BS8T7O84vEGGs+iv5Qt0LNYTjhMCCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:46:36.727311Z"},"content_sha256":"2aeeefaa398926b191c53d00b5d3073e062adf71e101ddc4f1f16434165ba878","schema_version":"1.0","event_id":"sha256:2aeeefaa398926b191c53d00b5d3073e062adf71e101ddc4f1f16434165ba878"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IBXXC746DAKARDXGYKA2PK6TZX/bundle.json","state_url":"https://pith.science/pith/IBXXC746DAKARDXGYKA2PK6TZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IBXXC746DAKARDXGYKA2PK6TZX/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":"2026-05-30T17:46:36Z","links":{"resolver":"https://pith.science/pith/IBXXC746DAKARDXGYKA2PK6TZX","bundle":"https://pith.science/pith/IBXXC746DAKARDXGYKA2PK6TZX/bundle.json","state":"https://pith.science/pith/IBXXC746DAKARDXGYKA2PK6TZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IBXXC746DAKARDXGYKA2PK6TZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:IBXXC746DAKARDXGYKA2PK6TZX","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":"cdc6981841abc50950340acf3a93a1eb9849553e64d1dc9edf0b65a04778f254","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2010-05-26T12:58:06Z","title_canon_sha256":"22e2968d5258b0ce8b326910e4f360e60055e6c24b22291c9dd3361d62cfac82"},"schema_version":"1.0","source":{"id":"1005.4802","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.4802","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"arxiv_version","alias_value":"1005.4802v4","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.4802","created_at":"2026-05-18T02:23:56Z"},{"alias_kind":"pith_short_12","alias_value":"IBXXC746DAKA","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"IBXXC746DAKARDXG","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"IBXXC746","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:2aeeefaa398926b191c53d00b5d3073e062adf71e101ddc4f1f16434165ba878","target":"graph","created_at":"2026-05-18T02:23:56Z","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":"The understanding of the origin of dark matter has great importance for cosmology and particle physics. Several interesting extensions of the standard model dealing with solution of this problem motivate the concept of hidden sectors consisting of SU(3)xSU(2)_LxU(1)_Y singlet fields. Among these models, the mirror matter model is certainly one of the most interesting. The model explains the origin of parity violation in weak interactions, it could also explain the baryon asymmetry of the Universe and provide a natural ground for the explanation of dark matter. The mirror matter could have a po","authors_text":"Alexander Belov, Andre Rubbia, Paolo Crivelli, Sergei Gninenko, Ulisse Gendotti","cross_cats":["astro-ph.CO","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2010-05-26T12:58:06Z","title":"Positronium Portal into Hidden Sector: A new Experiment to Search for Mirror Dark Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.4802","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":"sha256:9b461e0476b2f2550e4b8f5df019327744d5fe5882642f02e2090b86e58e485a","target":"record","created_at":"2026-05-18T02:23:56Z","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":"cdc6981841abc50950340acf3a93a1eb9849553e64d1dc9edf0b65a04778f254","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2010-05-26T12:58:06Z","title_canon_sha256":"22e2968d5258b0ce8b326910e4f360e60055e6c24b22291c9dd3361d62cfac82"},"schema_version":"1.0","source":{"id":"1005.4802","kind":"arxiv","version":4}},"canonical_sha256":"406f717f9e1814088ee6c281a7abd3cddfa544503503de570f5a1e5f31a1f666","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"406f717f9e1814088ee6c281a7abd3cddfa544503503de570f5a1e5f31a1f666","first_computed_at":"2026-05-18T02:23:56.035574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:23:56.035574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v0ngmXMsznLyaUVK3W7oVXiWgFtqM38ng2wuE1rIibo44pyoE9RtTkRSdryQow4QNrrxCIoE0xRLSa5NG+/SAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:23:56.036201Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.4802","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b461e0476b2f2550e4b8f5df019327744d5fe5882642f02e2090b86e58e485a","sha256:2aeeefaa398926b191c53d00b5d3073e062adf71e101ddc4f1f16434165ba878"],"state_sha256":"98b07d6fd130a49392ab14ae5e2a5a0ee13234b51bc73021e4b727808f3fc582"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t3KEhP+pxaJLcBnNKva9bmX43tqz6zrAQ/rk4ci3D/swjewVTsvIMgku4J4L55RoTPNCvhlapp5O47IpY2bUAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:46:36.730657Z","bundle_sha256":"5cb5d15180389ec18b174f95ca56b077ead4b11268596893494c89cc9bfd7c34"}}