{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:L5IE3YSAPZB73JTLQTQFNFIIO3","short_pith_number":"pith:L5IE3YSA","canonical_record":{"source":{"id":"1207.1254","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2012-07-05T13:46:08Z","cross_cats_sorted":[],"title_canon_sha256":"b0483223aabce83cd8505f008332bd49afa169ad092f8d9a5dc73e005739a32f","abstract_canon_sha256":"24366f2d8bc0464f9e35366f14f33f471df01cd44494b0cda52c4341ffae45d6"},"schema_version":"1.0"},"canonical_sha256":"5f504de2407e43fda66b84e056950876c78dfb6f76dfc9f8b161ba84d78c3d56","source":{"kind":"arxiv","id":"1207.1254","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1254","created_at":"2026-05-18T01:56:34Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1254v1","created_at":"2026-05-18T01:56:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1254","created_at":"2026-05-18T01:56:34Z"},{"alias_kind":"pith_short_12","alias_value":"L5IE3YSAPZB7","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"L5IE3YSAPZB73JTL","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"L5IE3YSA","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:L5IE3YSAPZB73JTLQTQFNFIIO3","target":"record","payload":{"canonical_record":{"source":{"id":"1207.1254","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2012-07-05T13:46:08Z","cross_cats_sorted":[],"title_canon_sha256":"b0483223aabce83cd8505f008332bd49afa169ad092f8d9a5dc73e005739a32f","abstract_canon_sha256":"24366f2d8bc0464f9e35366f14f33f471df01cd44494b0cda52c4341ffae45d6"},"schema_version":"1.0"},"canonical_sha256":"5f504de2407e43fda66b84e056950876c78dfb6f76dfc9f8b161ba84d78c3d56","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:34.322774Z","signature_b64":"PQPKj2Z1ZZAPgM8bApdE/ff7a8G74dZ8tEJIq4U768N2x+lUyizjIiuuOcaNZr97VMpiBpayM3D1J/ZTTIXmAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f504de2407e43fda66b84e056950876c78dfb6f76dfc9f8b161ba84d78c3d56","last_reissued_at":"2026-05-18T01:56:34.322131Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:34.322131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.1254","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":"2026-05-18T01:56:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o334GIvaFWu5143lIW2mCBT/ZQmczis9qtWbFqbQZ1eK0E5BYM9fDeVoqe9iMmcWFBpeheGQAbBTiVqiXI5ZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T16:19:41.808893Z"},"content_sha256":"00d37931700311e12da20a22e6be61e9c91ef7f9bc328a6d0807b0eaa0ce0bf8","schema_version":"1.0","event_id":"sha256:00d37931700311e12da20a22e6be61e9c91ef7f9bc328a6d0807b0eaa0ce0bf8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:L5IE3YSAPZB73JTLQTQFNFIIO3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bistability of the climate around the habitable zone: a thermodynamic investigation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ao-ph","authors_text":"Robert Boschi, Salvatore Pascale, Valerio Lucarini","submitted_at":"2012-07-05T13:46:08Z","abstract_excerpt":"The goal of this paper is to explore the potential multistability of the climate of a planet around the habitable zone. A thorough investigation of the thermodynamics of the climate system is performed for very diverse conditions of energy input and infrared atmosphere opacity. Using PlaSim, an Earth-like general circulation model, the solar constant S* is modulated between 1160 and 1510 Wm-2 and the CO2 concentration, [CO2], from 90 to 2880 ppm. It is observed that in such a parameter range the climate is bistable, i.e. there are two coexisting attractors, one characterised by warm, moist cli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1254","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":"2026-05-18T01:56:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UCgkpUf4aXDY4pYB09AGcXkRJuTD34BL68tjKVDomdDlbxH3KWcmNYroi8wOISGlHvOySnGHwfjHIBuBb/kkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T16:19:41.809598Z"},"content_sha256":"aba384091e2f1a92f38285af2b7183dadaeb27718e6707d7be92cff6f25e401c","schema_version":"1.0","event_id":"sha256:aba384091e2f1a92f38285af2b7183dadaeb27718e6707d7be92cff6f25e401c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L5IE3YSAPZB73JTLQTQFNFIIO3/bundle.json","state_url":"https://pith.science/pith/L5IE3YSAPZB73JTLQTQFNFIIO3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L5IE3YSAPZB73JTLQTQFNFIIO3/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":"2026-06-06T16:19:41Z","links":{"resolver":"https://pith.science/pith/L5IE3YSAPZB73JTLQTQFNFIIO3","bundle":"https://pith.science/pith/L5IE3YSAPZB73JTLQTQFNFIIO3/bundle.json","state":"https://pith.science/pith/L5IE3YSAPZB73JTLQTQFNFIIO3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L5IE3YSAPZB73JTLQTQFNFIIO3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:L5IE3YSAPZB73JTLQTQFNFIIO3","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":"24366f2d8bc0464f9e35366f14f33f471df01cd44494b0cda52c4341ffae45d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2012-07-05T13:46:08Z","title_canon_sha256":"b0483223aabce83cd8505f008332bd49afa169ad092f8d9a5dc73e005739a32f"},"schema_version":"1.0","source":{"id":"1207.1254","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1254","created_at":"2026-05-18T01:56:34Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1254v1","created_at":"2026-05-18T01:56:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1254","created_at":"2026-05-18T01:56:34Z"},{"alias_kind":"pith_short_12","alias_value":"L5IE3YSAPZB7","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"L5IE3YSAPZB73JTL","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"L5IE3YSA","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:aba384091e2f1a92f38285af2b7183dadaeb27718e6707d7be92cff6f25e401c","target":"graph","created_at":"2026-05-18T01:56:34Z","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 goal of this paper is to explore the potential multistability of the climate of a planet around the habitable zone. A thorough investigation of the thermodynamics of the climate system is performed for very diverse conditions of energy input and infrared atmosphere opacity. Using PlaSim, an Earth-like general circulation model, the solar constant S* is modulated between 1160 and 1510 Wm-2 and the CO2 concentration, [CO2], from 90 to 2880 ppm. It is observed that in such a parameter range the climate is bistable, i.e. there are two coexisting attractors, one characterised by warm, moist cli","authors_text":"Robert Boschi, Salvatore Pascale, Valerio Lucarini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2012-07-05T13:46:08Z","title":"Bistability of the climate around the habitable zone: a thermodynamic investigation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1254","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":"sha256:00d37931700311e12da20a22e6be61e9c91ef7f9bc328a6d0807b0eaa0ce0bf8","target":"record","created_at":"2026-05-18T01:56:34Z","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":"24366f2d8bc0464f9e35366f14f33f471df01cd44494b0cda52c4341ffae45d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2012-07-05T13:46:08Z","title_canon_sha256":"b0483223aabce83cd8505f008332bd49afa169ad092f8d9a5dc73e005739a32f"},"schema_version":"1.0","source":{"id":"1207.1254","kind":"arxiv","version":1}},"canonical_sha256":"5f504de2407e43fda66b84e056950876c78dfb6f76dfc9f8b161ba84d78c3d56","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5f504de2407e43fda66b84e056950876c78dfb6f76dfc9f8b161ba84d78c3d56","first_computed_at":"2026-05-18T01:56:34.322131Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:34.322131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PQPKj2Z1ZZAPgM8bApdE/ff7a8G74dZ8tEJIq4U768N2x+lUyizjIiuuOcaNZr97VMpiBpayM3D1J/ZTTIXmAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:34.322774Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.1254","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00d37931700311e12da20a22e6be61e9c91ef7f9bc328a6d0807b0eaa0ce0bf8","sha256:aba384091e2f1a92f38285af2b7183dadaeb27718e6707d7be92cff6f25e401c"],"state_sha256":"7cc65687b7085f42a924a8142bbbb41789717a5ca1f27c67456eb3f6189ca1ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wUX3KUJpvkB1NFZ5xH/TLlsFQ654NdTT9+uJMLkjmcs68U2Ui21dIg0wEpsgV75y/qwNrJij6rGsf6+2jviJBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T16:19:41.813142Z","bundle_sha256":"1c1589a59f3fcb889bc5ca2f05cfae458053f2b0291a7b7faa986660c23b31a7"}}