{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QTLRXRR32XZXY247RANDNKP4G2","short_pith_number":"pith:QTLRXRR3","canonical_record":{"source":{"id":"1103.4958","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-25T12:29:23Z","cross_cats_sorted":["physics.ao-ph","physics.space-ph"],"title_canon_sha256":"d40e890db5b4a89d7d49afb732251d990f5e4d41932789ca598140b013bf1e2d","abstract_canon_sha256":"504b8a6d0f898cd1d146f14d9d0e66f7359153850f81ce4a3229fecdeceb45e7"},"schema_version":"1.0"},"canonical_sha256":"84d71bc63bd5f37c6b9f881a36a9fc36a58b6bd2303dcac42099e237357d9515","source":{"kind":"arxiv","id":"1103.4958","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.4958","created_at":"2026-05-18T04:22:10Z"},{"alias_kind":"arxiv_version","alias_value":"1103.4958v2","created_at":"2026-05-18T04:22:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.4958","created_at":"2026-05-18T04:22:10Z"},{"alias_kind":"pith_short_12","alias_value":"QTLRXRR32XZX","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QTLRXRR32XZXY247","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QTLRXRR3","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QTLRXRR32XZXY247RANDNKP4G2","target":"record","payload":{"canonical_record":{"source":{"id":"1103.4958","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-25T12:29:23Z","cross_cats_sorted":["physics.ao-ph","physics.space-ph"],"title_canon_sha256":"d40e890db5b4a89d7d49afb732251d990f5e4d41932789ca598140b013bf1e2d","abstract_canon_sha256":"504b8a6d0f898cd1d146f14d9d0e66f7359153850f81ce4a3229fecdeceb45e7"},"schema_version":"1.0"},"canonical_sha256":"84d71bc63bd5f37c6b9f881a36a9fc36a58b6bd2303dcac42099e237357d9515","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:22:10.141024Z","signature_b64":"kHbB0q10A5Sb4SQ2sTMWFswJxsMsfovJrN5AMuK4+FwgrsHTs/W3x/HbozfQHFMeFwZIXmc1x6r0aSPCpn/wDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84d71bc63bd5f37c6b9f881a36a9fc36a58b6bd2303dcac42099e237357d9515","last_reissued_at":"2026-05-18T04:22:10.140538Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:22:10.140538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.4958","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:22:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5MAe8dVG7NiMPJbCF/kIfgqDhtswEwex0boVetrSI59p7pFzvLblleYVg4gRtFldeTd/dF0aNiFgE26P4b4BBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T13:09:56.326456Z"},"content_sha256":"006cc1403a2d795f36f0e2e3809236cc8d559c47e843f3e65772cb577bf73416","schema_version":"1.0","event_id":"sha256:006cc1403a2d795f36f0e2e3809236cc8d559c47e843f3e65772cb577bf73416"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QTLRXRR32XZXY247RANDNKP4G2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolution of the solar irradiance during the Holocene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ao-ph","physics.space-ph"],"primary_cat":"astro-ph.SR","authors_text":"Ilya Usoskin, Luis Eduardo A. Vieira, Natalie A. Krivova, Sami K. Solanki","submitted_at":"2011-03-25T12:29:23Z","abstract_excerpt":"Aims. We present a physically consistent reconstruction of the total solar irradiance for the Holocene. Methods. We extend the SATIRE models to estimate the evolution of the total (and partly spectral) solar irradiance over the Holocene. The basic assumption is that the variations of the solar irradiance are due to the evolution of the dark and bright magnetic features on the solar surface. The evolution of the decadally averaged magnetic flux is computed from decadal values of cosmogenic isotope concentrations recorded in natural archives employing a series of physics-based models connecting "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.4958","kind":"arxiv","version":2},"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":"2026-05-18T04:22:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sArbtrNHkgHQ989rFPTe4uSpERIfHqN1HjrBuvqBwm0XYtn59IfNlgohUGcWnBdrfZScsI/Lp/AagqYqyy4xBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T13:09:56.326796Z"},"content_sha256":"e6cac8518c774ecf955ca24063faab05f8cdfc088e066ca839dc958da19afb28","schema_version":"1.0","event_id":"sha256:e6cac8518c774ecf955ca24063faab05f8cdfc088e066ca839dc958da19afb28"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QTLRXRR32XZXY247RANDNKP4G2/bundle.json","state_url":"https://pith.science/pith/QTLRXRR32XZXY247RANDNKP4G2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QTLRXRR32XZXY247RANDNKP4G2/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":"2026-06-04T13:09:56Z","links":{"resolver":"https://pith.science/pith/QTLRXRR32XZXY247RANDNKP4G2","bundle":"https://pith.science/pith/QTLRXRR32XZXY247RANDNKP4G2/bundle.json","state":"https://pith.science/pith/QTLRXRR32XZXY247RANDNKP4G2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QTLRXRR32XZXY247RANDNKP4G2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QTLRXRR32XZXY247RANDNKP4G2","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":"504b8a6d0f898cd1d146f14d9d0e66f7359153850f81ce4a3229fecdeceb45e7","cross_cats_sorted":["physics.ao-ph","physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-25T12:29:23Z","title_canon_sha256":"d40e890db5b4a89d7d49afb732251d990f5e4d41932789ca598140b013bf1e2d"},"schema_version":"1.0","source":{"id":"1103.4958","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.4958","created_at":"2026-05-18T04:22:10Z"},{"alias_kind":"arxiv_version","alias_value":"1103.4958v2","created_at":"2026-05-18T04:22:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.4958","created_at":"2026-05-18T04:22:10Z"},{"alias_kind":"pith_short_12","alias_value":"QTLRXRR32XZX","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QTLRXRR32XZXY247","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QTLRXRR3","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:e6cac8518c774ecf955ca24063faab05f8cdfc088e066ca839dc958da19afb28","target":"graph","created_at":"2026-05-18T04:22:10Z","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":"Aims. We present a physically consistent reconstruction of the total solar irradiance for the Holocene. Methods. We extend the SATIRE models to estimate the evolution of the total (and partly spectral) solar irradiance over the Holocene. The basic assumption is that the variations of the solar irradiance are due to the evolution of the dark and bright magnetic features on the solar surface. The evolution of the decadally averaged magnetic flux is computed from decadal values of cosmogenic isotope concentrations recorded in natural archives employing a series of physics-based models connecting ","authors_text":"Ilya Usoskin, Luis Eduardo A. Vieira, Natalie A. Krivova, Sami K. Solanki","cross_cats":["physics.ao-ph","physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-25T12:29:23Z","title":"Evolution of the solar irradiance during the Holocene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.4958","kind":"arxiv","version":2},"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":"sha256:006cc1403a2d795f36f0e2e3809236cc8d559c47e843f3e65772cb577bf73416","target":"record","created_at":"2026-05-18T04:22:10Z","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":"504b8a6d0f898cd1d146f14d9d0e66f7359153850f81ce4a3229fecdeceb45e7","cross_cats_sorted":["physics.ao-ph","physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-03-25T12:29:23Z","title_canon_sha256":"d40e890db5b4a89d7d49afb732251d990f5e4d41932789ca598140b013bf1e2d"},"schema_version":"1.0","source":{"id":"1103.4958","kind":"arxiv","version":2}},"canonical_sha256":"84d71bc63bd5f37c6b9f881a36a9fc36a58b6bd2303dcac42099e237357d9515","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84d71bc63bd5f37c6b9f881a36a9fc36a58b6bd2303dcac42099e237357d9515","first_computed_at":"2026-05-18T04:22:10.140538Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:22:10.140538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kHbB0q10A5Sb4SQ2sTMWFswJxsMsfovJrN5AMuK4+FwgrsHTs/W3x/HbozfQHFMeFwZIXmc1x6r0aSPCpn/wDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:22:10.141024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.4958","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:006cc1403a2d795f36f0e2e3809236cc8d559c47e843f3e65772cb577bf73416","sha256:e6cac8518c774ecf955ca24063faab05f8cdfc088e066ca839dc958da19afb28"],"state_sha256":"5bad3461a3764c656898376028b3dc4bcfa4ee7a61cb8bd1c603455c114ad514"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SQCJNFCiBZkCKxtUoJ6wYhIOBWIUeejBlShpVi7m4cEueqdS+D8jiJZr4efwcvwlEPyxbcl/VQPVgNtjoqhpCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T13:09:56.328686Z","bundle_sha256":"756b1c0cb6de9822bbb8c555595a5435c46b45b152a08293ca9a2816dfc16a4a"}}