{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:HXWTD6M56MWZ7LYETCQSWMX5SC","short_pith_number":"pith:HXWTD6M5","canonical_record":{"source":{"id":"1709.01072","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"q-bio.PE","submitted_at":"2017-09-04T11:55:36Z","cross_cats_sorted":[],"title_canon_sha256":"2cc2275bf3b136e2ccf30f6d6e29944afdcaf961ec676ddd31892ca504ab8729","abstract_canon_sha256":"8762e81d407e47d9be19a981f332c1cc57251b0e578b8caf5c543808c95211dc"},"schema_version":"1.0"},"canonical_sha256":"3ded31f99df32d9faf0498a12b32fd90b3c6cd288684e7ce581099ce451f1731","source":{"kind":"arxiv","id":"1709.01072","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01072","created_at":"2026-05-18T00:36:00Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01072v1","created_at":"2026-05-18T00:36:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01072","created_at":"2026-05-18T00:36:00Z"},{"alias_kind":"pith_short_12","alias_value":"HXWTD6M56MWZ","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"HXWTD6M56MWZ7LYE","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"HXWTD6M5","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:HXWTD6M56MWZ7LYETCQSWMX5SC","target":"record","payload":{"canonical_record":{"source":{"id":"1709.01072","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"q-bio.PE","submitted_at":"2017-09-04T11:55:36Z","cross_cats_sorted":[],"title_canon_sha256":"2cc2275bf3b136e2ccf30f6d6e29944afdcaf961ec676ddd31892ca504ab8729","abstract_canon_sha256":"8762e81d407e47d9be19a981f332c1cc57251b0e578b8caf5c543808c95211dc"},"schema_version":"1.0"},"canonical_sha256":"3ded31f99df32d9faf0498a12b32fd90b3c6cd288684e7ce581099ce451f1731","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:00.941096Z","signature_b64":"3TT2ZBvK3+zlztIrFCl3d+a0qFb/NCS/gN2ZySWjBeazVnOQrIz4bnlBFtTdH9k6NgcxgIhbG72n77cpjt7BBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ded31f99df32d9faf0498a12b32fd90b3c6cd288684e7ce581099ce451f1731","last_reissued_at":"2026-05-18T00:36:00.940712Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:00.940712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.01072","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":"2026-05-18T00:36:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ctafONJpH7Xbgbsy7RBNOzm2rHJcloi05ZN0wyxuP7GfBG5jTKjFCayB2aAFZzT8pd6WjdYx/dbMSaR+rQtIBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:20:57.941391Z"},"content_sha256":"86a8b125fdd6d999bb81fc17d91cdee28a5775bbccecbb2f5d7c5249b1b55b02","schema_version":"1.0","event_id":"sha256:86a8b125fdd6d999bb81fc17d91cdee28a5775bbccecbb2f5d7c5249b1b55b02"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:HXWTD6M56MWZ7LYETCQSWMX5SC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fairy circle landscapes under the sea","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.PE","authors_text":"Carlos M. Duarte, Dami\\`a Gomila, Daniel Ruiz-Reyn\\'es, Emilio Hern\\'andez-Garc\\'ia, N\\'uria Marb\\`a, Tom\\`as Sintes","submitted_at":"2017-09-04T11:55:36Z","abstract_excerpt":"Short-scale interactions yield large-scale vegetation patterns that, in turn, shape ecosystem function across landscapes. Fairy circles, which are circular patches bare of vegetation within otherwise continuous landscapes, are characteristic features of semiarid grasslands. We report the occurrence of submarine fairy circle seascapes in seagrass meadows and propose a simple model that reproduces the diversity of seascapes observed in these ecosystems as emerging from plant interactions within the meadow. These seascapes include two extreme cases, a continuous meadow and a bare landscape, along"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01072","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":"2026-05-18T00:36:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5KYQ+oVjJiAp/KFpJHIpgZEd0GOdYqtMcmQ/wuFYDv2Xw4yWlEdiIuIIvRYwol0JeHbhpGRCsO9NtStjnVNRAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:20:57.942041Z"},"content_sha256":"b8781aeadfec1af36bf2a23788cc51fb1ce578c0e4ee06abf2b2d826834d7001","schema_version":"1.0","event_id":"sha256:b8781aeadfec1af36bf2a23788cc51fb1ce578c0e4ee06abf2b2d826834d7001"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HXWTD6M56MWZ7LYETCQSWMX5SC/bundle.json","state_url":"https://pith.science/pith/HXWTD6M56MWZ7LYETCQSWMX5SC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HXWTD6M56MWZ7LYETCQSWMX5SC/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":"2026-05-27T19:20:57Z","links":{"resolver":"https://pith.science/pith/HXWTD6M56MWZ7LYETCQSWMX5SC","bundle":"https://pith.science/pith/HXWTD6M56MWZ7LYETCQSWMX5SC/bundle.json","state":"https://pith.science/pith/HXWTD6M56MWZ7LYETCQSWMX5SC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HXWTD6M56MWZ7LYETCQSWMX5SC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HXWTD6M56MWZ7LYETCQSWMX5SC","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":"8762e81d407e47d9be19a981f332c1cc57251b0e578b8caf5c543808c95211dc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"q-bio.PE","submitted_at":"2017-09-04T11:55:36Z","title_canon_sha256":"2cc2275bf3b136e2ccf30f6d6e29944afdcaf961ec676ddd31892ca504ab8729"},"schema_version":"1.0","source":{"id":"1709.01072","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.01072","created_at":"2026-05-18T00:36:00Z"},{"alias_kind":"arxiv_version","alias_value":"1709.01072v1","created_at":"2026-05-18T00:36:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.01072","created_at":"2026-05-18T00:36:00Z"},{"alias_kind":"pith_short_12","alias_value":"HXWTD6M56MWZ","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"HXWTD6M56MWZ7LYE","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"HXWTD6M5","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:b8781aeadfec1af36bf2a23788cc51fb1ce578c0e4ee06abf2b2d826834d7001","target":"graph","created_at":"2026-05-18T00:36:00Z","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":"Short-scale interactions yield large-scale vegetation patterns that, in turn, shape ecosystem function across landscapes. Fairy circles, which are circular patches bare of vegetation within otherwise continuous landscapes, are characteristic features of semiarid grasslands. We report the occurrence of submarine fairy circle seascapes in seagrass meadows and propose a simple model that reproduces the diversity of seascapes observed in these ecosystems as emerging from plant interactions within the meadow. These seascapes include two extreme cases, a continuous meadow and a bare landscape, along","authors_text":"Carlos M. Duarte, Dami\\`a Gomila, Daniel Ruiz-Reyn\\'es, Emilio Hern\\'andez-Garc\\'ia, N\\'uria Marb\\`a, Tom\\`as Sintes","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"q-bio.PE","submitted_at":"2017-09-04T11:55:36Z","title":"Fairy circle landscapes under the sea"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.01072","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":"sha256:86a8b125fdd6d999bb81fc17d91cdee28a5775bbccecbb2f5d7c5249b1b55b02","target":"record","created_at":"2026-05-18T00:36:00Z","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":"8762e81d407e47d9be19a981f332c1cc57251b0e578b8caf5c543808c95211dc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"q-bio.PE","submitted_at":"2017-09-04T11:55:36Z","title_canon_sha256":"2cc2275bf3b136e2ccf30f6d6e29944afdcaf961ec676ddd31892ca504ab8729"},"schema_version":"1.0","source":{"id":"1709.01072","kind":"arxiv","version":1}},"canonical_sha256":"3ded31f99df32d9faf0498a12b32fd90b3c6cd288684e7ce581099ce451f1731","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ded31f99df32d9faf0498a12b32fd90b3c6cd288684e7ce581099ce451f1731","first_computed_at":"2026-05-18T00:36:00.940712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:00.940712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3TT2ZBvK3+zlztIrFCl3d+a0qFb/NCS/gN2ZySWjBeazVnOQrIz4bnlBFtTdH9k6NgcxgIhbG72n77cpjt7BBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:00.941096Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.01072","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:86a8b125fdd6d999bb81fc17d91cdee28a5775bbccecbb2f5d7c5249b1b55b02","sha256:b8781aeadfec1af36bf2a23788cc51fb1ce578c0e4ee06abf2b2d826834d7001"],"state_sha256":"58f586d7cd0769319cd0865003c311c1cc74b44df27e347c2e2b9a8a686accc4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5S4BohXsMB0isBraxs20h12vmjPtkkWUxSnSj2ynL8xp2lRG6sDe2h6JZgndX3KzVD89GiAeE67K+w7u7Qj7CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:20:57.945481Z","bundle_sha256":"3eeadf5534b0db9d762a9dcb9596f139c8eb16de2ae8c8a727d63b5230bb2c1f"}}