{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:O6LUWXF5H3RQF4Q3WHXO7VG6D4","short_pith_number":"pith:O6LUWXF5","canonical_record":{"source":{"id":"1507.05191","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-18T14:39:18Z","cross_cats_sorted":[],"title_canon_sha256":"f8579fe85dbaee2811876eb3f986e362609163535959351108a46617441f4783","abstract_canon_sha256":"ed7e37a8da7045aa2442aa06274c8cc9fbab302c4a9f77564df91365e53662f7"},"schema_version":"1.0"},"canonical_sha256":"77974b5cbd3ee302f21bb1eeefd4de1f1ba8ed073534ac82b39fb943c67e7af7","source":{"kind":"arxiv","id":"1507.05191","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.05191","created_at":"2026-05-18T01:24:14Z"},{"alias_kind":"arxiv_version","alias_value":"1507.05191v1","created_at":"2026-05-18T01:24:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.05191","created_at":"2026-05-18T01:24:14Z"},{"alias_kind":"pith_short_12","alias_value":"O6LUWXF5H3RQ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O6LUWXF5H3RQF4Q3","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O6LUWXF5","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:O6LUWXF5H3RQF4Q3WHXO7VG6D4","target":"record","payload":{"canonical_record":{"source":{"id":"1507.05191","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-18T14:39:18Z","cross_cats_sorted":[],"title_canon_sha256":"f8579fe85dbaee2811876eb3f986e362609163535959351108a46617441f4783","abstract_canon_sha256":"ed7e37a8da7045aa2442aa06274c8cc9fbab302c4a9f77564df91365e53662f7"},"schema_version":"1.0"},"canonical_sha256":"77974b5cbd3ee302f21bb1eeefd4de1f1ba8ed073534ac82b39fb943c67e7af7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:14.320774Z","signature_b64":"A+OVw1zj9tHnt6SOgvsylO0nGV/5LEPqO/VcoZolmX2L2urXx6DBhY+3ikvoq1n2VDJuLDhCe4WoH3xlklXADw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77974b5cbd3ee302f21bb1eeefd4de1f1ba8ed073534ac82b39fb943c67e7af7","last_reissued_at":"2026-05-18T01:24:14.320252Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:14.320252Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.05191","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":"2026-05-18T01:24:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IzWHDFJKBeMIhnk2GlKhHT+fvP0RB5HtEMkn9ksOevsLTx+Ks3gaO8c+pLQ0Aj2XkPdzU4z9qdhXRMxjAgKfDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:08:09.941184Z"},"content_sha256":"076f7b6d4ec4f87fae7a0d061017132feaf33a3374b7e4b62b27ad0429b5978e","schema_version":"1.0","event_id":"sha256:076f7b6d4ec4f87fae7a0d061017132feaf33a3374b7e4b62b27ad0429b5978e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:O6LUWXF5H3RQF4Q3WHXO7VG6D4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Maunder minimum (1645--1715) was indeed a Grand minimum: A reassessment of multiple datasets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Chris J. Scott, Dmitry D. Sokoloff, Ed Hawkins, Eleanna Asvestari, Gennady A. Kovaltsov, Ilya G. Usoskin, Jezebel O'Reilly, Jos\\'e M. Vaquero, Kalevi Mursula, Maarit K\\\"apyl\\\"a, Matthew Owens, Michael Lockwood, Natalie Krivova, Rainer Arlt, Sami K. Solanki, Willie Soon","submitted_at":"2015-07-18T14:39:18Z","abstract_excerpt":"Aims: Although the time of the Maunder minimum (1645--1715) is widely known as a period of extremely low solar activity, claims are still debated that solar activity during that period might still have been moderate, even higher than the current solar cycle #24. We have revisited all the existing pieces of evidence and datasets, both direct and indirect, to assess the level of solar activity during the Maunder minimum.\n  Methods: We discuss the East Asian naked-eye sunspot observations, the telescopic solar observations, the fraction of sunspot active days, the latitudinal extent of sunspot po"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.05191","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":""},"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":"2026-05-18T01:24:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kBg5bdmoXysGsyfum+IuV6NApOYJRFzQJK7YxED1A9uQDF8+HZHjUqoqTnjCRN6tukKuSwh39uda26LeGbc/Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:08:09.941894Z"},"content_sha256":"4544e985eeb23fd261f42826d51c877802e4cbcce7b246442e00d62db496771c","schema_version":"1.0","event_id":"sha256:4544e985eeb23fd261f42826d51c877802e4cbcce7b246442e00d62db496771c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4/bundle.json","state_url":"https://pith.science/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4/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":"2026-05-30T15:08:09Z","links":{"resolver":"https://pith.science/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4","bundle":"https://pith.science/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4/bundle.json","state":"https://pith.science/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O6LUWXF5H3RQF4Q3WHXO7VG6D4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:O6LUWXF5H3RQF4Q3WHXO7VG6D4","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":"ed7e37a8da7045aa2442aa06274c8cc9fbab302c4a9f77564df91365e53662f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-18T14:39:18Z","title_canon_sha256":"f8579fe85dbaee2811876eb3f986e362609163535959351108a46617441f4783"},"schema_version":"1.0","source":{"id":"1507.05191","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.05191","created_at":"2026-05-18T01:24:14Z"},{"alias_kind":"arxiv_version","alias_value":"1507.05191v1","created_at":"2026-05-18T01:24:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.05191","created_at":"2026-05-18T01:24:14Z"},{"alias_kind":"pith_short_12","alias_value":"O6LUWXF5H3RQ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O6LUWXF5H3RQF4Q3","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O6LUWXF5","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:4544e985eeb23fd261f42826d51c877802e4cbcce7b246442e00d62db496771c","target":"graph","created_at":"2026-05-18T01:24:14Z","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: Although the time of the Maunder minimum (1645--1715) is widely known as a period of extremely low solar activity, claims are still debated that solar activity during that period might still have been moderate, even higher than the current solar cycle #24. We have revisited all the existing pieces of evidence and datasets, both direct and indirect, to assess the level of solar activity during the Maunder minimum.\n  Methods: We discuss the East Asian naked-eye sunspot observations, the telescopic solar observations, the fraction of sunspot active days, the latitudinal extent of sunspot po","authors_text":"Chris J. Scott, Dmitry D. Sokoloff, Ed Hawkins, Eleanna Asvestari, Gennady A. Kovaltsov, Ilya G. Usoskin, Jezebel O'Reilly, Jos\\'e M. Vaquero, Kalevi Mursula, Maarit K\\\"apyl\\\"a, Matthew Owens, Michael Lockwood, Natalie Krivova, Rainer Arlt, Sami K. Solanki, Willie Soon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-18T14:39:18Z","title":"The Maunder minimum (1645--1715) was indeed a Grand minimum: A reassessment of multiple datasets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.05191","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":"sha256:076f7b6d4ec4f87fae7a0d061017132feaf33a3374b7e4b62b27ad0429b5978e","target":"record","created_at":"2026-05-18T01:24:14Z","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":"ed7e37a8da7045aa2442aa06274c8cc9fbab302c4a9f77564df91365e53662f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-18T14:39:18Z","title_canon_sha256":"f8579fe85dbaee2811876eb3f986e362609163535959351108a46617441f4783"},"schema_version":"1.0","source":{"id":"1507.05191","kind":"arxiv","version":1}},"canonical_sha256":"77974b5cbd3ee302f21bb1eeefd4de1f1ba8ed073534ac82b39fb943c67e7af7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"77974b5cbd3ee302f21bb1eeefd4de1f1ba8ed073534ac82b39fb943c67e7af7","first_computed_at":"2026-05-18T01:24:14.320252Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:14.320252Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A+OVw1zj9tHnt6SOgvsylO0nGV/5LEPqO/VcoZolmX2L2urXx6DBhY+3ikvoq1n2VDJuLDhCe4WoH3xlklXADw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:14.320774Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.05191","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:076f7b6d4ec4f87fae7a0d061017132feaf33a3374b7e4b62b27ad0429b5978e","sha256:4544e985eeb23fd261f42826d51c877802e4cbcce7b246442e00d62db496771c"],"state_sha256":"263ead4b8dcb32a645039d144764f8515f2c9f76c1ac8a085df7ad7ccd1d70c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"teWDCSlLerjOf6AoZVC4kQ+qfZq+0GCYVXrGmGIg7i7o2xZH6Q0YPgUEbzC6MUYw2cp9MO/TMEe9GHKwCncwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:08:09.945083Z","bundle_sha256":"0f34896a945dad3510c9902bee8b0e4463569c76b9e2990d946aa6884125598a"}}