{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:2J2ITGN7SKNYAHHDIQMDFYB3P4","short_pith_number":"pith:2J2ITGN7","canonical_record":{"source":{"id":"1511.07647","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-11-24T11:08:47Z","cross_cats_sorted":[],"title_canon_sha256":"bf38b3da028c023cc2afdf042bb02445e582cf4f26c00bc4876ca24f95b6e46c","abstract_canon_sha256":"4be9b39b7cabd82fcd7aa9728ee77b32caec7c1947b5303814309be18ce1766e"},"schema_version":"1.0"},"canonical_sha256":"d2748999bf929b801ce3441832e03b7f18f9c14f995db97227136b6f98aac02e","source":{"kind":"arxiv","id":"1511.07647","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07647","created_at":"2026-05-18T01:26:04Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07647v1","created_at":"2026-05-18T01:26:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07647","created_at":"2026-05-18T01:26:04Z"},{"alias_kind":"pith_short_12","alias_value":"2J2ITGN7SKNY","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2J2ITGN7SKNYAHHD","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2J2ITGN7","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:2J2ITGN7SKNYAHHDIQMDFYB3P4","target":"record","payload":{"canonical_record":{"source":{"id":"1511.07647","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-11-24T11:08:47Z","cross_cats_sorted":[],"title_canon_sha256":"bf38b3da028c023cc2afdf042bb02445e582cf4f26c00bc4876ca24f95b6e46c","abstract_canon_sha256":"4be9b39b7cabd82fcd7aa9728ee77b32caec7c1947b5303814309be18ce1766e"},"schema_version":"1.0"},"canonical_sha256":"d2748999bf929b801ce3441832e03b7f18f9c14f995db97227136b6f98aac02e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:26:04.081617Z","signature_b64":"rkRBlM1KkzQFuaVnBtAz1ftFmiD6H4hclPbz4mhCBEnz4QQyQW8dPfs725+KOBuHzOv+zFDUvqvtQO0eh8a1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2748999bf929b801ce3441832e03b7f18f9c14f995db97227136b6f98aac02e","last_reissued_at":"2026-05-18T01:26:04.081135Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:26:04.081135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.07647","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":"2026-05-18T01:26:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uFOOYXX+/haa+Glp4a62ZL69C9HzK/e2nYeAaSu3b1cEGKkoirKpwGwO1FVu6eFbx6UV53KUVKQCxsrNMqmDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T16:52:47.308532Z"},"content_sha256":"e22670e58232999b9ba9c75379aa92ccbdb1be4814c5706eff693854f548a16f","schema_version":"1.0","event_id":"sha256:e22670e58232999b9ba9c75379aa92ccbdb1be4814c5706eff693854f548a16f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:2J2ITGN7SKNYAHHDIQMDFYB3P4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploiting Environmental Computation in a Multi-Agent Model of Slime Mould","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.ET","authors_text":"Jeff Jones","submitted_at":"2015-11-24T11:08:47Z","abstract_excerpt":"Very simple organisms, such as the single-celled amoeboid slime mould Physarum polycephalum possess no neural tissue yet, despite this, are known to exhibit complex biological and computational behaviour. Given such limited resources, can environmental stimuli play a role in generating the complexity of slime mould behaviour? We use a multi-agent collective model of slime mould to explore a two-way mechanism where the collective behaviour is influenced by simulated chemical concentration gradient fields and, in turn, this behaviour alters the spatial pattern of the concentration gradients. Thi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07647","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":"2026-05-18T01:26:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4IrWJwvaywkIUSwO57dj/QIYOJbdBWn9npETw7AKqe0h/5cdel8cBC0r7L4RzL+4k1DAhHK98zahpSNXBujDBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T16:52:47.309239Z"},"content_sha256":"81e2bccbcd4990742b8ebfae92a140d5b6a3ed29a32c675af1fe3acdb501eda3","schema_version":"1.0","event_id":"sha256:81e2bccbcd4990742b8ebfae92a140d5b6a3ed29a32c675af1fe3acdb501eda3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4/bundle.json","state_url":"https://pith.science/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4/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":"2026-06-11T16:52:47Z","links":{"resolver":"https://pith.science/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4","bundle":"https://pith.science/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4/bundle.json","state":"https://pith.science/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2J2ITGN7SKNYAHHDIQMDFYB3P4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2J2ITGN7SKNYAHHDIQMDFYB3P4","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":"4be9b39b7cabd82fcd7aa9728ee77b32caec7c1947b5303814309be18ce1766e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-11-24T11:08:47Z","title_canon_sha256":"bf38b3da028c023cc2afdf042bb02445e582cf4f26c00bc4876ca24f95b6e46c"},"schema_version":"1.0","source":{"id":"1511.07647","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07647","created_at":"2026-05-18T01:26:04Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07647v1","created_at":"2026-05-18T01:26:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07647","created_at":"2026-05-18T01:26:04Z"},{"alias_kind":"pith_short_12","alias_value":"2J2ITGN7SKNY","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2J2ITGN7SKNYAHHD","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2J2ITGN7","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:81e2bccbcd4990742b8ebfae92a140d5b6a3ed29a32c675af1fe3acdb501eda3","target":"graph","created_at":"2026-05-18T01:26:04Z","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":"Very simple organisms, such as the single-celled amoeboid slime mould Physarum polycephalum possess no neural tissue yet, despite this, are known to exhibit complex biological and computational behaviour. Given such limited resources, can environmental stimuli play a role in generating the complexity of slime mould behaviour? We use a multi-agent collective model of slime mould to explore a two-way mechanism where the collective behaviour is influenced by simulated chemical concentration gradient fields and, in turn, this behaviour alters the spatial pattern of the concentration gradients. Thi","authors_text":"Jeff Jones","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-11-24T11:08:47Z","title":"Exploiting Environmental Computation in a Multi-Agent Model of Slime Mould"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07647","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:e22670e58232999b9ba9c75379aa92ccbdb1be4814c5706eff693854f548a16f","target":"record","created_at":"2026-05-18T01:26:04Z","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":"4be9b39b7cabd82fcd7aa9728ee77b32caec7c1947b5303814309be18ce1766e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.ET","submitted_at":"2015-11-24T11:08:47Z","title_canon_sha256":"bf38b3da028c023cc2afdf042bb02445e582cf4f26c00bc4876ca24f95b6e46c"},"schema_version":"1.0","source":{"id":"1511.07647","kind":"arxiv","version":1}},"canonical_sha256":"d2748999bf929b801ce3441832e03b7f18f9c14f995db97227136b6f98aac02e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2748999bf929b801ce3441832e03b7f18f9c14f995db97227136b6f98aac02e","first_computed_at":"2026-05-18T01:26:04.081135Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:26:04.081135Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rkRBlM1KkzQFuaVnBtAz1ftFmiD6H4hclPbz4mhCBEnz4QQyQW8dPfs725+KOBuHzOv+zFDUvqvtQO0eh8a1AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:26:04.081617Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.07647","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e22670e58232999b9ba9c75379aa92ccbdb1be4814c5706eff693854f548a16f","sha256:81e2bccbcd4990742b8ebfae92a140d5b6a3ed29a32c675af1fe3acdb501eda3"],"state_sha256":"1cfdeb84e2b0a980e1e0c0e23b9175275fc51f7680b8329e22a7a5b97cc20dc3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LaPnfK03o7irSitOqYldHGuvbJXSoRbwE73xX3Nws0VtQlzEg3mkOw83nEgA73XPlQsry+/GD0RgTcrkIasTDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T16:52:47.313191Z","bundle_sha256":"f87389d316932ff240e996de2523f65b31e0b83dac7b247d73c51da240a52788"}}