{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:7MZYYKUC3BTGVVX2PYH6BJZT57","short_pith_number":"pith:7MZYYKUC","canonical_record":{"source":{"id":"1602.03093","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-09T17:48:43Z","cross_cats_sorted":[],"title_canon_sha256":"6d501ad262e76b758085adc8516b322834c577631f6aef350dd3f281361c4b23","abstract_canon_sha256":"fbb80f0dff5d01bb166b1fc1e5d290145bfeab7322ed170258f727a6617dbe7f"},"schema_version":"1.0"},"canonical_sha256":"fb338c2a82d8666ad6fa7e0fe0a733efebfdc435dbd1590465299f200aef7c60","source":{"kind":"arxiv","id":"1602.03093","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03093","created_at":"2026-05-18T01:21:03Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03093v1","created_at":"2026-05-18T01:21:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03093","created_at":"2026-05-18T01:21:03Z"},{"alias_kind":"pith_short_12","alias_value":"7MZYYKUC3BTG","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7MZYYKUC3BTGVVX2","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7MZYYKUC","created_at":"2026-05-18T12:30:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:7MZYYKUC3BTGVVX2PYH6BJZT57","target":"record","payload":{"canonical_record":{"source":{"id":"1602.03093","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-09T17:48:43Z","cross_cats_sorted":[],"title_canon_sha256":"6d501ad262e76b758085adc8516b322834c577631f6aef350dd3f281361c4b23","abstract_canon_sha256":"fbb80f0dff5d01bb166b1fc1e5d290145bfeab7322ed170258f727a6617dbe7f"},"schema_version":"1.0"},"canonical_sha256":"fb338c2a82d8666ad6fa7e0fe0a733efebfdc435dbd1590465299f200aef7c60","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:03.452805Z","signature_b64":"r7BCEeWBq09dtjyEai9cFuVvc8g03xPCkJy9TCK06QCVFPRRRmZPLJDT8xOV5iwfqPJvEKJHNT6a1xdTzTOgDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb338c2a82d8666ad6fa7e0fe0a733efebfdc435dbd1590465299f200aef7c60","last_reissued_at":"2026-05-18T01:21:03.452169Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:03.452169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.03093","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":"2026-05-18T01:21:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AYDvsOADuwgnKni94obyJYa/K6rmqKWBp/n5l8RGyVXnXvWF6yZHt4uvZudBOlzEAcrhZdbZs9r8yTjjrKEmAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:00:28.050636Z"},"content_sha256":"ed9ebe732cd25cc5efcb6fc8d34b2f68b153f2649d9a2c6f79ff5017a53ebd37","schema_version":"1.0","event_id":"sha256:ed9ebe732cd25cc5efcb6fc8d34b2f68b153f2649d9a2c6f79ff5017a53ebd37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:7MZYYKUC3BTGVVX2PYH6BJZT57","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The effect of environmental stochasticity on species richness in neutral communities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.PE","authors_text":"David A. Kessler, Matan Danino, Nadav M. Shnerb, Sandro Azaele, William E. Kunin","submitted_at":"2016-02-09T17:48:43Z","abstract_excerpt":"Environmental stochasticity is known to be a destabilizing factor, increasing abundance fluctuations and extinction rates of populations. However, the stability of a community may benefit from the differential response of species to environmental variations due to the storage effect. This paper provides a systematic and comprehensive discussion of these two contradicting tendencies, using the metacommunity version of the recently proposed time-average neutral model of biodiversity which incorporates environmental stochasticity and demographic noise and allows for extinction and speciation. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03093","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":"2026-05-18T01:21:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3kSD7PntnGNHOl4bQDDcdjqnQ/1aMdbnVQ3OwgbV0FbS246zGiKYQD77o9hegkvS3qp6GW2pQZ0GFUHFvww9Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:00:28.051329Z"},"content_sha256":"9e0ee4d7f31a8aa0725cbae3bce19d9ea6017d992fdbaae747779b95cfd3b9c3","schema_version":"1.0","event_id":"sha256:9e0ee4d7f31a8aa0725cbae3bce19d9ea6017d992fdbaae747779b95cfd3b9c3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7MZYYKUC3BTGVVX2PYH6BJZT57/bundle.json","state_url":"https://pith.science/pith/7MZYYKUC3BTGVVX2PYH6BJZT57/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7MZYYKUC3BTGVVX2PYH6BJZT57/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":"2026-05-25T03:00:28Z","links":{"resolver":"https://pith.science/pith/7MZYYKUC3BTGVVX2PYH6BJZT57","bundle":"https://pith.science/pith/7MZYYKUC3BTGVVX2PYH6BJZT57/bundle.json","state":"https://pith.science/pith/7MZYYKUC3BTGVVX2PYH6BJZT57/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7MZYYKUC3BTGVVX2PYH6BJZT57/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:7MZYYKUC3BTGVVX2PYH6BJZT57","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":"fbb80f0dff5d01bb166b1fc1e5d290145bfeab7322ed170258f727a6617dbe7f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-09T17:48:43Z","title_canon_sha256":"6d501ad262e76b758085adc8516b322834c577631f6aef350dd3f281361c4b23"},"schema_version":"1.0","source":{"id":"1602.03093","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03093","created_at":"2026-05-18T01:21:03Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03093v1","created_at":"2026-05-18T01:21:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03093","created_at":"2026-05-18T01:21:03Z"},{"alias_kind":"pith_short_12","alias_value":"7MZYYKUC3BTG","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"7MZYYKUC3BTGVVX2","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"7MZYYKUC","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:9e0ee4d7f31a8aa0725cbae3bce19d9ea6017d992fdbaae747779b95cfd3b9c3","target":"graph","created_at":"2026-05-18T01:21:03Z","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":"Environmental stochasticity is known to be a destabilizing factor, increasing abundance fluctuations and extinction rates of populations. However, the stability of a community may benefit from the differential response of species to environmental variations due to the storage effect. This paper provides a systematic and comprehensive discussion of these two contradicting tendencies, using the metacommunity version of the recently proposed time-average neutral model of biodiversity which incorporates environmental stochasticity and demographic noise and allows for extinction and speciation. We ","authors_text":"David A. Kessler, Matan Danino, Nadav M. Shnerb, Sandro Azaele, William E. Kunin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-09T17:48:43Z","title":"The effect of environmental stochasticity on species richness in neutral communities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03093","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:ed9ebe732cd25cc5efcb6fc8d34b2f68b153f2649d9a2c6f79ff5017a53ebd37","target":"record","created_at":"2026-05-18T01:21:03Z","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":"fbb80f0dff5d01bb166b1fc1e5d290145bfeab7322ed170258f727a6617dbe7f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-09T17:48:43Z","title_canon_sha256":"6d501ad262e76b758085adc8516b322834c577631f6aef350dd3f281361c4b23"},"schema_version":"1.0","source":{"id":"1602.03093","kind":"arxiv","version":1}},"canonical_sha256":"fb338c2a82d8666ad6fa7e0fe0a733efebfdc435dbd1590465299f200aef7c60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb338c2a82d8666ad6fa7e0fe0a733efebfdc435dbd1590465299f200aef7c60","first_computed_at":"2026-05-18T01:21:03.452169Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:03.452169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r7BCEeWBq09dtjyEai9cFuVvc8g03xPCkJy9TCK06QCVFPRRRmZPLJDT8xOV5iwfqPJvEKJHNT6a1xdTzTOgDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:03.452805Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.03093","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ed9ebe732cd25cc5efcb6fc8d34b2f68b153f2649d9a2c6f79ff5017a53ebd37","sha256:9e0ee4d7f31a8aa0725cbae3bce19d9ea6017d992fdbaae747779b95cfd3b9c3"],"state_sha256":"168541ab64b7c07dba9acf2cfa88464f8726f1aedc869e1c070d95725ed2ff9a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xpH5PhL4tTdRsMxGfFfhNvDXMvztDDl1b7h1wyHeD8ybCQlq5Un6DmfDemJ6x9z85IvEn/ywEV6Z4rjOgmuuAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T03:00:28.055332Z","bundle_sha256":"32e86cc826f1da88411c54fb0709d752ce377b4519152630c4d19c0e414cf572"}}