{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:POEG4JXC6TTDGYK2SR6YTJ6SUO","short_pith_number":"pith:POEG4JXC","canonical_record":{"source":{"id":"1602.08802","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-29T02:48:19Z","cross_cats_sorted":["cs.NE"],"title_canon_sha256":"df52dadcc720048095a424792d02acea7aa1c7cb06fb052ca5d3060e1c337243","abstract_canon_sha256":"14555e0e5006919faaa3200759e3fd3035e53337c861eebfda4785fb9d828d75"},"schema_version":"1.0"},"canonical_sha256":"7b886e26e2f4e633615a947d89a7d2a3a55f7e571f8d09130250e13866e9896d","source":{"kind":"arxiv","id":"1602.08802","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08802","created_at":"2026-05-18T00:55:52Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08802v1","created_at":"2026-05-18T00:55:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08802","created_at":"2026-05-18T00:55:52Z"},{"alias_kind":"pith_short_12","alias_value":"POEG4JXC6TTD","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"POEG4JXC6TTDGYK2","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"POEG4JXC","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:POEG4JXC6TTDGYK2SR6YTJ6SUO","target":"record","payload":{"canonical_record":{"source":{"id":"1602.08802","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-29T02:48:19Z","cross_cats_sorted":["cs.NE"],"title_canon_sha256":"df52dadcc720048095a424792d02acea7aa1c7cb06fb052ca5d3060e1c337243","abstract_canon_sha256":"14555e0e5006919faaa3200759e3fd3035e53337c861eebfda4785fb9d828d75"},"schema_version":"1.0"},"canonical_sha256":"7b886e26e2f4e633615a947d89a7d2a3a55f7e571f8d09130250e13866e9896d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:55:52.091239Z","signature_b64":"Fw2AmyfBLIfQrkZazyeG8pO48cJqYW+uUi6CyxumkJZzZ0KE6asqV0X+BOW+2HlXKXWUIYr2RsteDy5LPCqQBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7b886e26e2f4e633615a947d89a7d2a3a55f7e571f8d09130250e13866e9896d","last_reissued_at":"2026-05-18T00:55:52.090684Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:55:52.090684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.08802","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":"2026-05-18T00:55:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pgSPs/Wy6uCK/ulzvO7gj4u6rmOYt6vnmQ4sWAUFiUIeWjeG4c1AxJI64enYyicw3rVbPjpLDi+7EI+helUSDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T00:23:05.615811Z"},"content_sha256":"2851eb0d863649e11a376200e24d217447a964d86d9a8abb8482dd80bb86b6c3","schema_version":"1.0","event_id":"sha256:2851eb0d863649e11a376200e24d217447a964d86d9a8abb8482dd80bb86b6c3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:POEG4JXC6TTDGYK2SR6YTJ6SUO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the coevolution of predator and prey morphology and behavior","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NE"],"primary_cat":"q-bio.PE","authors_text":"Arend Hintze, Christoph Adami, Fred C. Dyer, Jason H. Moore, Randal S. Olson","submitted_at":"2016-02-29T02:48:19Z","abstract_excerpt":"A common idiom in biology education states, \"Eyes in the front, the animal hunts. Eyes on the side, the animal hides.\" In this paper, we explore one possible explanation for why predators tend to have forward-facing, high-acuity visual systems. We do so using an agent-based computational model of evolution, where predators and prey interact and adapt their behavior and morphology to one another over successive generations of evolution. In this model, we observe a coevolutionary cycle between prey swarming behavior and the predator's visual system, where the predator and prey continually adapt "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08802","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":"2026-05-18T00:55:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"54D2np3AtFDHfksrNyKnBuXWsYh1ux7o07uUhkQJO85YKPfQzGl8F1VU5JYpoJxnnYFfvyH6jofzgIwgHoKWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T00:23:05.616159Z"},"content_sha256":"37d001c1f5aef8fe24fdca9f7586964fbb254e89effea0cd2c505843873988b1","schema_version":"1.0","event_id":"sha256:37d001c1f5aef8fe24fdca9f7586964fbb254e89effea0cd2c505843873988b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO/bundle.json","state_url":"https://pith.science/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO/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":"2026-07-01T00:23:05Z","links":{"resolver":"https://pith.science/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO","bundle":"https://pith.science/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO/bundle.json","state":"https://pith.science/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/POEG4JXC6TTDGYK2SR6YTJ6SUO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:POEG4JXC6TTDGYK2SR6YTJ6SUO","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":"14555e0e5006919faaa3200759e3fd3035e53337c861eebfda4785fb9d828d75","cross_cats_sorted":["cs.NE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-29T02:48:19Z","title_canon_sha256":"df52dadcc720048095a424792d02acea7aa1c7cb06fb052ca5d3060e1c337243"},"schema_version":"1.0","source":{"id":"1602.08802","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08802","created_at":"2026-05-18T00:55:52Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08802v1","created_at":"2026-05-18T00:55:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08802","created_at":"2026-05-18T00:55:52Z"},{"alias_kind":"pith_short_12","alias_value":"POEG4JXC6TTD","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"POEG4JXC6TTDGYK2","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"POEG4JXC","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:37d001c1f5aef8fe24fdca9f7586964fbb254e89effea0cd2c505843873988b1","target":"graph","created_at":"2026-05-18T00:55:52Z","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":"A common idiom in biology education states, \"Eyes in the front, the animal hunts. Eyes on the side, the animal hides.\" In this paper, we explore one possible explanation for why predators tend to have forward-facing, high-acuity visual systems. We do so using an agent-based computational model of evolution, where predators and prey interact and adapt their behavior and morphology to one another over successive generations of evolution. In this model, we observe a coevolutionary cycle between prey swarming behavior and the predator's visual system, where the predator and prey continually adapt ","authors_text":"Arend Hintze, Christoph Adami, Fred C. Dyer, Jason H. Moore, Randal S. Olson","cross_cats":["cs.NE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-29T02:48:19Z","title":"Exploring the coevolution of predator and prey morphology and behavior"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08802","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":"sha256:2851eb0d863649e11a376200e24d217447a964d86d9a8abb8482dd80bb86b6c3","target":"record","created_at":"2026-05-18T00:55:52Z","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":"14555e0e5006919faaa3200759e3fd3035e53337c861eebfda4785fb9d828d75","cross_cats_sorted":["cs.NE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2016-02-29T02:48:19Z","title_canon_sha256":"df52dadcc720048095a424792d02acea7aa1c7cb06fb052ca5d3060e1c337243"},"schema_version":"1.0","source":{"id":"1602.08802","kind":"arxiv","version":1}},"canonical_sha256":"7b886e26e2f4e633615a947d89a7d2a3a55f7e571f8d09130250e13866e9896d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b886e26e2f4e633615a947d89a7d2a3a55f7e571f8d09130250e13866e9896d","first_computed_at":"2026-05-18T00:55:52.090684Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:52.090684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fw2AmyfBLIfQrkZazyeG8pO48cJqYW+uUi6CyxumkJZzZ0KE6asqV0X+BOW+2HlXKXWUIYr2RsteDy5LPCqQBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:52.091239Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.08802","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2851eb0d863649e11a376200e24d217447a964d86d9a8abb8482dd80bb86b6c3","sha256:37d001c1f5aef8fe24fdca9f7586964fbb254e89effea0cd2c505843873988b1"],"state_sha256":"2860bd0a02b5c3adab8ac2bcd95c8a7774a6f4da01f3723a48134e35bfe88e46"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3jaSLHvKCu2OxNbttES1tA5wYq3H+aeNmndhuDBPCdLsN/T4jErGywCCBxaEw3voylyMUZhn07ywAidtnSiZCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T00:23:05.618076Z","bundle_sha256":"b7a5ebb4d4b2a569374872e71883bca08d7712b06bdf45ea702e94adae1b4b46"}}