{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MGONFXRF6AQSDYXWNL67T4WWAK","short_pith_number":"pith:MGONFXRF","canonical_record":{"source":{"id":"1710.09544","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2017-10-26T04:58:53Z","cross_cats_sorted":["physics.ao-ph"],"title_canon_sha256":"6319627932594f0657382f87bb6935f19e3f4abb0229a0063c5ed5c3f269a439","abstract_canon_sha256":"b54c8c4422a9f81503e6a0c3b616e33272367bb1a193f5497b7cb11e080c8e6e"},"schema_version":"1.0"},"canonical_sha256":"619cd2de25f02121e2f66afdf9f2d602a288ecaf072d5088f88d6e5c21a08cff","source":{"kind":"arxiv","id":"1710.09544","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09544","created_at":"2026-05-18T00:31:55Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09544v2","created_at":"2026-05-18T00:31:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09544","created_at":"2026-05-18T00:31:55Z"},{"alias_kind":"pith_short_12","alias_value":"MGONFXRF6AQS","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MGONFXRF6AQSDYXW","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MGONFXRF","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MGONFXRF6AQSDYXWNL67T4WWAK","target":"record","payload":{"canonical_record":{"source":{"id":"1710.09544","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2017-10-26T04:58:53Z","cross_cats_sorted":["physics.ao-ph"],"title_canon_sha256":"6319627932594f0657382f87bb6935f19e3f4abb0229a0063c5ed5c3f269a439","abstract_canon_sha256":"b54c8c4422a9f81503e6a0c3b616e33272367bb1a193f5497b7cb11e080c8e6e"},"schema_version":"1.0"},"canonical_sha256":"619cd2de25f02121e2f66afdf9f2d602a288ecaf072d5088f88d6e5c21a08cff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:55.434427Z","signature_b64":"QbC8EZKWcXgLy0oLFjASBbyWE72XluO+uENiZU90r+5Nyvbo63kyiqihAuClOP82wlgMA/eHMYyhDypEnEvQAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"619cd2de25f02121e2f66afdf9f2d602a288ecaf072d5088f88d6e5c21a08cff","last_reissued_at":"2026-05-18T00:31:55.434053Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:55.434053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.09544","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":"2026-05-18T00:31:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jy1sUGs0M3Es+XgIKoFnaqIT4uSgk73KR0XNBgOZymX6ihffx1sjnB6C9UV/Eg5niDRymBr25ab/IIQEW1BYBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:27:28.805239Z"},"content_sha256":"0e49f40d886530caf3260ea0e387b17392655712a2f137840cc781f952029837","schema_version":"1.0","event_id":"sha256:0e49f40d886530caf3260ea0e387b17392655712a2f137840cc781f952029837"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MGONFXRF6AQSDYXWNL67T4WWAK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modelling Coupled Oscillations of Volcanic CO2 Emissions and Glacial Cycles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ao-ph"],"primary_cat":"physics.geo-ph","authors_text":"Jonathan M. A. Burley, Peter Huybers, Richard F. Katz","submitted_at":"2017-10-26T04:58:53Z","abstract_excerpt":"Following the mid-Pleistocene transition, the dominant period of glacial cycles changed from 40 ka to ~100 ka. It is broadly accepted that the 40 ka glacial cycles were driven by cyclical changes in obliquity. However, this forcing does not explain the ~100 ka glacial cycles. Mechanisms have been proposed for ~100 ka cycles, but none are universally accepted. Any proposed mechanism for ~100 ka glacial cycles must give the Earth's climate system a memory of tens-of-thousands-of-years. This timescale is difficult to achieve for surface processes, however it is possible for the solid Earth. Recen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09544","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":"2026-05-18T00:31:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xAbG7tBrkG97tieosqva8/5YiX6uyvWpjciz732DngxqEmUcrOT1ZxcIxybjTnT7Nf0E3/DrvkOrkACnL8FTCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T07:27:28.805999Z"},"content_sha256":"9df10054891103e378c131b22a3be91078b75832a25c276c0e92ee9431893ff0","schema_version":"1.0","event_id":"sha256:9df10054891103e378c131b22a3be91078b75832a25c276c0e92ee9431893ff0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MGONFXRF6AQSDYXWNL67T4WWAK/bundle.json","state_url":"https://pith.science/pith/MGONFXRF6AQSDYXWNL67T4WWAK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MGONFXRF6AQSDYXWNL67T4WWAK/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":"2026-06-10T07:27:28Z","links":{"resolver":"https://pith.science/pith/MGONFXRF6AQSDYXWNL67T4WWAK","bundle":"https://pith.science/pith/MGONFXRF6AQSDYXWNL67T4WWAK/bundle.json","state":"https://pith.science/pith/MGONFXRF6AQSDYXWNL67T4WWAK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MGONFXRF6AQSDYXWNL67T4WWAK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MGONFXRF6AQSDYXWNL67T4WWAK","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":"b54c8c4422a9f81503e6a0c3b616e33272367bb1a193f5497b7cb11e080c8e6e","cross_cats_sorted":["physics.ao-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2017-10-26T04:58:53Z","title_canon_sha256":"6319627932594f0657382f87bb6935f19e3f4abb0229a0063c5ed5c3f269a439"},"schema_version":"1.0","source":{"id":"1710.09544","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09544","created_at":"2026-05-18T00:31:55Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09544v2","created_at":"2026-05-18T00:31:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09544","created_at":"2026-05-18T00:31:55Z"},{"alias_kind":"pith_short_12","alias_value":"MGONFXRF6AQS","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MGONFXRF6AQSDYXW","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MGONFXRF","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:9df10054891103e378c131b22a3be91078b75832a25c276c0e92ee9431893ff0","target":"graph","created_at":"2026-05-18T00:31:55Z","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":"Following the mid-Pleistocene transition, the dominant period of glacial cycles changed from 40 ka to ~100 ka. It is broadly accepted that the 40 ka glacial cycles were driven by cyclical changes in obliquity. However, this forcing does not explain the ~100 ka glacial cycles. Mechanisms have been proposed for ~100 ka cycles, but none are universally accepted. Any proposed mechanism for ~100 ka glacial cycles must give the Earth's climate system a memory of tens-of-thousands-of-years. This timescale is difficult to achieve for surface processes, however it is possible for the solid Earth. Recen","authors_text":"Jonathan M. A. Burley, Peter Huybers, Richard F. Katz","cross_cats":["physics.ao-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2017-10-26T04:58:53Z","title":"Modelling Coupled Oscillations of Volcanic CO2 Emissions and Glacial Cycles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09544","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":"sha256:0e49f40d886530caf3260ea0e387b17392655712a2f137840cc781f952029837","target":"record","created_at":"2026-05-18T00:31:55Z","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":"b54c8c4422a9f81503e6a0c3b616e33272367bb1a193f5497b7cb11e080c8e6e","cross_cats_sorted":["physics.ao-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2017-10-26T04:58:53Z","title_canon_sha256":"6319627932594f0657382f87bb6935f19e3f4abb0229a0063c5ed5c3f269a439"},"schema_version":"1.0","source":{"id":"1710.09544","kind":"arxiv","version":2}},"canonical_sha256":"619cd2de25f02121e2f66afdf9f2d602a288ecaf072d5088f88d6e5c21a08cff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"619cd2de25f02121e2f66afdf9f2d602a288ecaf072d5088f88d6e5c21a08cff","first_computed_at":"2026-05-18T00:31:55.434053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:55.434053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QbC8EZKWcXgLy0oLFjASBbyWE72XluO+uENiZU90r+5Nyvbo63kyiqihAuClOP82wlgMA/eHMYyhDypEnEvQAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:55.434427Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.09544","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e49f40d886530caf3260ea0e387b17392655712a2f137840cc781f952029837","sha256:9df10054891103e378c131b22a3be91078b75832a25c276c0e92ee9431893ff0"],"state_sha256":"90ce432f732bd3c0d9d78122e751aec3e67c35ff0582d7e29d1f4f35484dbf5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0n0o/qhFyAD9sIItif3Jd+EWksEpP9XB/P1t/UZVjtF7zgPyUEOJ8nozGOwcFxBiO6+rOwRs8cD0He+ehDZKDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T07:27:28.809990Z","bundle_sha256":"3ba19c924721b8a285d8e703dd34b16693f3170a8f907e9d1575ede568aa164a"}}