{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:S2JTVM4WQO2DNOWD3ZWTMRW6I6","short_pith_number":"pith:S2JTVM4W","canonical_record":{"source":{"id":"1801.08829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-01-26T14:40:58Z","cross_cats_sorted":["cs.RO"],"title_canon_sha256":"99668bcfce153f08fba572dc5fb7e04f5e94833eb29af982e171ab96cb2391f4","abstract_canon_sha256":"5c1a28f1ba58a3215b37a4de7a69a4f3c2968329ff529d7b250ba935e522aa7c"},"schema_version":"1.0"},"canonical_sha256":"96933ab39683b436bac3de6d3646de47ab6d255f65e5d1c20f889d95211518f6","source":{"kind":"arxiv","id":"1801.08829","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08829","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08829v2","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08829","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"pith_short_12","alias_value":"S2JTVM4WQO2D","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"pith_short_16","alias_value":"S2JTVM4WQO2DNOWD","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"pith_short_8","alias_value":"S2JTVM4W","created_at":"2026-07-05T05:33:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:S2JTVM4WQO2DNOWD3ZWTMRW6I6","target":"record","payload":{"canonical_record":{"source":{"id":"1801.08829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-01-26T14:40:58Z","cross_cats_sorted":["cs.RO"],"title_canon_sha256":"99668bcfce153f08fba572dc5fb7e04f5e94833eb29af982e171ab96cb2391f4","abstract_canon_sha256":"5c1a28f1ba58a3215b37a4de7a69a4f3c2968329ff529d7b250ba935e522aa7c"},"schema_version":"1.0"},"canonical_sha256":"96933ab39683b436bac3de6d3646de47ab6d255f65e5d1c20f889d95211518f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:33:02.100328Z","signature_b64":"cewjEbS9jJiepOn/H3ciMjTaGoA0Oli6sDyQnQfZ2UuBnw5wyB8CspCzmdP5DggpxYANaNW+9WZdSCrXzKUzAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"96933ab39683b436bac3de6d3646de47ab6d255f65e5d1c20f889d95211518f6","last_reissued_at":"2026-07-05T05:33:02.099833Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:33:02.099833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.08829","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:33:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k75MU7yP8mBAKKrYR2P2U7c89ozEawh1GaH58Andlnkyn1240wNu3zKAS+wfeIU4V1BsROrl1DZ7gjiiT69KBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T21:51:11.222418Z"},"content_sha256":"3470a5bb7ea60896b0d5b8a86877b4212682feb2ecd7574a9ab480a6b6f2ee17","schema_version":"1.0","event_id":"sha256:3470a5bb7ea60896b0d5b8a86877b4212682feb2ecd7574a9ab480a6b6f2ee17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:S2JTVM4WQO2DNOWD3ZWTMRW6I6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Symbol Emergence in Cognitive Developmental Systems: a Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.RO"],"primary_cat":"cs.AI","authors_text":"Benjamin Rosman, Emre Ugur, Erhan Oztop, Florentin W\\\"org\\\"otter, Justus Piater, Lorenzo Jamone, Matej Hoffmann, Naoto Iwahashi, Tadahiro Taniguchi, Takayuki Nagai, Toshihiko Matsuka","submitted_at":"2018-01-26T14:40:58Z","abstract_excerpt":"Humans use signs, e.g., sentences in a spoken language, for communication and thought. Hence, symbol systems like language are crucial for our communication with other agents and adaptation to our real-world environment. The symbol systems we use in our human society adaptively and dynamically change over time. In the context of artificial intelligence (AI) and cognitive systems, the symbol grounding problem has been regarded as one of the central problems related to {\\it symbols}. However, the symbol grounding problem was originally posed to connect symbolic AI and sensorimotor information an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08829","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1801.08829/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:33:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rOvR0uEPfePt2QvG2lAI3vHqODvC/9jVy6QvKH7F9OkmVyK4t6flqZfrmfM4Cvkos7RuobEBxzy1iI8KhNICCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T21:51:11.223161Z"},"content_sha256":"e9b24072e025cc64eebefa37bcb199cb6cec45f407568cecc7b8771f56a4789a","schema_version":"1.0","event_id":"sha256:e9b24072e025cc64eebefa37bcb199cb6cec45f407568cecc7b8771f56a4789a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6/bundle.json","state_url":"https://pith.science/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6/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":"2026-08-14T21:51:11Z","links":{"resolver":"https://pith.science/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6","bundle":"https://pith.science/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6/bundle.json","state":"https://pith.science/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S2JTVM4WQO2DNOWD3ZWTMRW6I6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:S2JTVM4WQO2DNOWD3ZWTMRW6I6","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":"5c1a28f1ba58a3215b37a4de7a69a4f3c2968329ff529d7b250ba935e522aa7c","cross_cats_sorted":["cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-01-26T14:40:58Z","title_canon_sha256":"99668bcfce153f08fba572dc5fb7e04f5e94833eb29af982e171ab96cb2391f4"},"schema_version":"1.0","source":{"id":"1801.08829","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08829","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08829v2","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08829","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"pith_short_12","alias_value":"S2JTVM4WQO2D","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"pith_short_16","alias_value":"S2JTVM4WQO2DNOWD","created_at":"2026-07-05T05:33:02Z"},{"alias_kind":"pith_short_8","alias_value":"S2JTVM4W","created_at":"2026-07-05T05:33:02Z"}],"graph_snapshots":[{"event_id":"sha256:e9b24072e025cc64eebefa37bcb199cb6cec45f407568cecc7b8771f56a4789a","target":"graph","created_at":"2026-07-05T05:33:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1801.08829/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Humans use signs, e.g., sentences in a spoken language, for communication and thought. Hence, symbol systems like language are crucial for our communication with other agents and adaptation to our real-world environment. The symbol systems we use in our human society adaptively and dynamically change over time. In the context of artificial intelligence (AI) and cognitive systems, the symbol grounding problem has been regarded as one of the central problems related to {\\it symbols}. However, the symbol grounding problem was originally posed to connect symbolic AI and sensorimotor information an","authors_text":"Benjamin Rosman, Emre Ugur, Erhan Oztop, Florentin W\\\"org\\\"otter, Justus Piater, Lorenzo Jamone, Matej Hoffmann, Naoto Iwahashi, Tadahiro Taniguchi, Takayuki Nagai, Toshihiko Matsuka","cross_cats":["cs.RO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-01-26T14:40:58Z","title":"Symbol Emergence in Cognitive Developmental Systems: a Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08829","kind":"arxiv","version":2},"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":"sha256:3470a5bb7ea60896b0d5b8a86877b4212682feb2ecd7574a9ab480a6b6f2ee17","target":"record","created_at":"2026-07-05T05:33:02Z","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":"5c1a28f1ba58a3215b37a4de7a69a4f3c2968329ff529d7b250ba935e522aa7c","cross_cats_sorted":["cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2018-01-26T14:40:58Z","title_canon_sha256":"99668bcfce153f08fba572dc5fb7e04f5e94833eb29af982e171ab96cb2391f4"},"schema_version":"1.0","source":{"id":"1801.08829","kind":"arxiv","version":2}},"canonical_sha256":"96933ab39683b436bac3de6d3646de47ab6d255f65e5d1c20f889d95211518f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96933ab39683b436bac3de6d3646de47ab6d255f65e5d1c20f889d95211518f6","first_computed_at":"2026-07-05T05:33:02.099833Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:33:02.099833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cewjEbS9jJiepOn/H3ciMjTaGoA0Oli6sDyQnQfZ2UuBnw5wyB8CspCzmdP5DggpxYANaNW+9WZdSCrXzKUzAA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:33:02.100328Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.08829","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3470a5bb7ea60896b0d5b8a86877b4212682feb2ecd7574a9ab480a6b6f2ee17","sha256:e9b24072e025cc64eebefa37bcb199cb6cec45f407568cecc7b8771f56a4789a"],"state_sha256":"1721ca99f36cc6ad2ab4b06be518fca48b1958100d5fe414a9613bf227eab65f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fW5p9g2gXPwrOiel0x61fRzPk2LXMVn1N0KGkravSduxfEOeBUGDEGcfhuljdrUVesVY8g8U+cb1EMMnpQmgAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T21:51:11.226856Z","bundle_sha256":"cea97faae53b289617fe0e1bc4e6611aebbc6d4f7655e6cfe4caae80e4a8ab2b"}}