{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:HSSOAEIDC2I2VMSZPC2A2MT7QO","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":"65dcf02b90329588f99f63a6c5c8649ba7af5b27114dab6c27ef3637ecd69cbf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-02-13T23:11:05Z","title_canon_sha256":"238c4bd08a9bb0e2376cfe468217cd717ce7c7cea0330b8d4211a465ac6a262f"},"schema_version":"1.0","source":{"id":"1802.04892","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04892","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04892v1","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04892","created_at":"2026-05-18T00:23:22Z"},{"alias_kind":"pith_short_12","alias_value":"HSSOAEIDC2I2","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HSSOAEIDC2I2VMSZ","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HSSOAEID","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:eebeaf9c7c9fa7f0599b6fba904e32419e779388b4a3964199887e68b9c0394a","target":"graph","created_at":"2026-05-18T00:23:22Z","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":"In tropical regions, fires propagate readily in grasslands but typically consume only edges of forest patches. Thus forest patches grow due to tree propagation and shrink by fires in surrounding grasslands. The interplay between these competing edge effects is unknown, but critical in determining the shape and stability of individual forest patches, as well the landscape-level spatial distribution and stability of forests. We analyze high-resolution remote-sensing data from protected areas of the Brazilian Cerrado and find that forest shapes obey a robust perimeter-area scaling relation across","authors_text":"Adam F. A. Pellegrini, Andrew M. Berdahl, Laurent H\\'ebert-Dufresne, Sidney Redner, Stephen W. Pacala, Uttam Bhat","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-02-13T23:11:05Z","title":"Edge fires drive the shape and stability of tropical forests"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04892","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":"sha256:350e57706f0eef98c2491ec6f75f3521f49416dac9fed3e305f9749261dcf18f","target":"record","created_at":"2026-05-18T00:23:22Z","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":"65dcf02b90329588f99f63a6c5c8649ba7af5b27114dab6c27ef3637ecd69cbf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-02-13T23:11:05Z","title_canon_sha256":"238c4bd08a9bb0e2376cfe468217cd717ce7c7cea0330b8d4211a465ac6a262f"},"schema_version":"1.0","source":{"id":"1802.04892","kind":"arxiv","version":1}},"canonical_sha256":"3ca4e011031691aab25978b40d327f83a957200287d4a09f79ddf6e52e2a297a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ca4e011031691aab25978b40d327f83a957200287d4a09f79ddf6e52e2a297a","first_computed_at":"2026-05-18T00:23:22.297728Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:22.297728Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IFz+wcuEplOGdkhxfznqECgYX3e4rkfaGPDV7XCfjs2CfIKbbJKT7Qy3C/PGkxmTsjTf8oFVIOLCjH+4V1qTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:22.298357Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04892","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:350e57706f0eef98c2491ec6f75f3521f49416dac9fed3e305f9749261dcf18f","sha256:eebeaf9c7c9fa7f0599b6fba904e32419e779388b4a3964199887e68b9c0394a"],"state_sha256":"98eee412d0e03d4add94610594bb4b047a13ef63f5bb0771377cebf104c8e947"}