{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:RBE7PSP55SJ3BYIIQAGFEGTUY7","short_pith_number":"pith:RBE7PSP5","canonical_record":{"source":{"id":"1309.7405","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2013-09-28T01:57:54Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"744f495741a9aff13c2ecf0fe375b4236e0cfadd5ebdf62184269fe574e0d21f","abstract_canon_sha256":"bac027d51400d233b73d6a4ebeaa24b608498a55e8255d37f892643ec10a8ee3"},"schema_version":"1.0"},"canonical_sha256":"8849f7c9fdec93b0e108800c521a74c7e4521b927d1df07b7c2aac3544418a76","source":{"kind":"arxiv","id":"1309.7405","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.7405","created_at":"2026-05-17T23:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1309.7405v3","created_at":"2026-05-17T23:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.7405","created_at":"2026-05-17T23:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"RBE7PSP55SJ3","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RBE7PSP55SJ3BYII","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RBE7PSP5","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:RBE7PSP55SJ3BYIIQAGFEGTUY7","target":"record","payload":{"canonical_record":{"source":{"id":"1309.7405","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2013-09-28T01:57:54Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"744f495741a9aff13c2ecf0fe375b4236e0cfadd5ebdf62184269fe574e0d21f","abstract_canon_sha256":"bac027d51400d233b73d6a4ebeaa24b608498a55e8255d37f892643ec10a8ee3"},"schema_version":"1.0"},"canonical_sha256":"8849f7c9fdec93b0e108800c521a74c7e4521b927d1df07b7c2aac3544418a76","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:02.505180Z","signature_b64":"1NSqNUFxIoNgphG8aUKANUYo0a8kNK8Z1yJ56kMdlM1NpJ97f3nDEsUVYM89kfb54r8XpsKroa6l9Vbc80AWCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8849f7c9fdec93b0e108800c521a74c7e4521b927d1df07b7c2aac3544418a76","last_reissued_at":"2026-05-17T23:41:02.504564Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:02.504564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.7405","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NlMlTyQBKBKo0BohMyPwzo97t9jM+tVjumr5EZSSGD4GUegjRBbn+0P8bnyfv5kVG+mwbzSBMe7cfaXZ/n8wDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:01:33.996801Z"},"content_sha256":"5f7368b748bc02adc723970839da115079fa578e8aa8549903c988b741b4e1ff","schema_version":"1.0","event_id":"sha256:5f7368b748bc02adc723970839da115079fa578e8aa8549903c988b741b4e1ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:RBE7PSP55SJ3BYIIQAGFEGTUY7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Model of the Mechanisms Underlying Exploratory Behaviour","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"q-bio.PE","authors_text":"Liane Gabora, Patrick Colgan","submitted_at":"2013-09-28T01:57:54Z","abstract_excerpt":"A model of the mechanisms underlying exploratory behaviour, based on empirical research and refined using a computer simulation, is presented. The behaviour of killifish from two lakes, one with killifish predators and one without, was compared in the laboratory. Plotting average activity in a novel environment versus time resulted in an inverted-U-shaped curve for both groups; however, the curve for killifish from the lake without predators was (1) steeper, (2) reached a peak value earlier, (S) reached a higher peak value, and (4) subsumed less area than the curve for killifish from the lake "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.7405","kind":"arxiv","version":3},"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":"2026-05-17T23:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4a4Cg0RLONRixcdtCDANSu1X9xWI6HC3Nbqq8hgrLTYS6IFszPZYzBdspdKczh0hazVBUXLdqm9bK82w/qNmDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:01:33.997540Z"},"content_sha256":"400aba544d80be899fc7a7c0cfc7df8b6582eb08833c4c0db55c143bcf404454","schema_version":"1.0","event_id":"sha256:400aba544d80be899fc7a7c0cfc7df8b6582eb08833c4c0db55c143bcf404454"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7/bundle.json","state_url":"https://pith.science/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7/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":"2026-06-10T01:01:33Z","links":{"resolver":"https://pith.science/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7","bundle":"https://pith.science/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7/bundle.json","state":"https://pith.science/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RBE7PSP55SJ3BYIIQAGFEGTUY7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RBE7PSP55SJ3BYIIQAGFEGTUY7","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":"bac027d51400d233b73d6a4ebeaa24b608498a55e8255d37f892643ec10a8ee3","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2013-09-28T01:57:54Z","title_canon_sha256":"744f495741a9aff13c2ecf0fe375b4236e0cfadd5ebdf62184269fe574e0d21f"},"schema_version":"1.0","source":{"id":"1309.7405","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.7405","created_at":"2026-05-17T23:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1309.7405v3","created_at":"2026-05-17T23:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.7405","created_at":"2026-05-17T23:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"RBE7PSP55SJ3","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RBE7PSP55SJ3BYII","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RBE7PSP5","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:400aba544d80be899fc7a7c0cfc7df8b6582eb08833c4c0db55c143bcf404454","target":"graph","created_at":"2026-05-17T23:41:02Z","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 model of the mechanisms underlying exploratory behaviour, based on empirical research and refined using a computer simulation, is presented. The behaviour of killifish from two lakes, one with killifish predators and one without, was compared in the laboratory. Plotting average activity in a novel environment versus time resulted in an inverted-U-shaped curve for both groups; however, the curve for killifish from the lake without predators was (1) steeper, (2) reached a peak value earlier, (S) reached a higher peak value, and (4) subsumed less area than the curve for killifish from the lake ","authors_text":"Liane Gabora, Patrick Colgan","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2013-09-28T01:57:54Z","title":"A Model of the Mechanisms Underlying Exploratory Behaviour"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.7405","kind":"arxiv","version":3},"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":"sha256:5f7368b748bc02adc723970839da115079fa578e8aa8549903c988b741b4e1ff","target":"record","created_at":"2026-05-17T23:41:02Z","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":"bac027d51400d233b73d6a4ebeaa24b608498a55e8255d37f892643ec10a8ee3","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2013-09-28T01:57:54Z","title_canon_sha256":"744f495741a9aff13c2ecf0fe375b4236e0cfadd5ebdf62184269fe574e0d21f"},"schema_version":"1.0","source":{"id":"1309.7405","kind":"arxiv","version":3}},"canonical_sha256":"8849f7c9fdec93b0e108800c521a74c7e4521b927d1df07b7c2aac3544418a76","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8849f7c9fdec93b0e108800c521a74c7e4521b927d1df07b7c2aac3544418a76","first_computed_at":"2026-05-17T23:41:02.504564Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:02.504564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1NSqNUFxIoNgphG8aUKANUYo0a8kNK8Z1yJ56kMdlM1NpJ97f3nDEsUVYM89kfb54r8XpsKroa6l9Vbc80AWCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:02.505180Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.7405","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f7368b748bc02adc723970839da115079fa578e8aa8549903c988b741b4e1ff","sha256:400aba544d80be899fc7a7c0cfc7df8b6582eb08833c4c0db55c143bcf404454"],"state_sha256":"df1a7c4f1edd809a12fe0f994f3aa06c7c76f7d7e7833b13a5cf850b44a3f23e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0HPva9PidxGhoSmso8pGLRHQ2eAaHcKOFlQFfW1+ZkA6YDF5QgNXLipm1ws1sMzaZo3OhG8w851i8x4DB2ZDDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T01:01:34.001635Z","bundle_sha256":"ce2639dbbede33873d8bfd272a89fa950266561ee1bc410cb5ac199429303853"}}