{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:U5JNEVRQJCXCEZFWUANHBIAPPM","short_pith_number":"pith:U5JNEVRQ","canonical_record":{"source":{"id":"2001.08868","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-01-24T03:03:51Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"01b17d1099fd3907e13ca467bdd4e238f7f2eeb2902d9c16cc634ccf66e2980e","abstract_canon_sha256":"e548a532ade56c436644b42b39f507b133b0fe5e64615272eb30a027034dbf69"},"schema_version":"1.0"},"canonical_sha256":"a752d2563048ae2264b6a01a70a00f7b030814e4fe049e55f7840e1bec3abf2c","source":{"kind":"arxiv","id":"2001.08868","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08868","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08868v2","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08868","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"pith_short_12","alias_value":"U5JNEVRQJCXC","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"pith_short_16","alias_value":"U5JNEVRQJCXCEZFW","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"pith_short_8","alias_value":"U5JNEVRQ","created_at":"2026-07-05T01:08:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:U5JNEVRQJCXCEZFWUANHBIAPPM","target":"record","payload":{"canonical_record":{"source":{"id":"2001.08868","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-01-24T03:03:51Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"01b17d1099fd3907e13ca467bdd4e238f7f2eeb2902d9c16cc634ccf66e2980e","abstract_canon_sha256":"e548a532ade56c436644b42b39f507b133b0fe5e64615272eb30a027034dbf69"},"schema_version":"1.0"},"canonical_sha256":"a752d2563048ae2264b6a01a70a00f7b030814e4fe049e55f7840e1bec3abf2c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:08:26.672094Z","signature_b64":"VnyNKTWVtegxz+qXyBbijgNx+bbXka3H0M0C4MZlPcr63ovNZ6tyIEn7X97jK+UKQ/QBykCj0CbsWIqBxU8qBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a752d2563048ae2264b6a01a70a00f7b030814e4fe049e55f7840e1bec3abf2c","last_reissued_at":"2026-07-05T01:08:26.671683Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:08:26.671683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.08868","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":"2026-07-05T01:08:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S9+vCwNdZBt6KpyQvkGb6tTsulBkuH0E3cFXb4b5DyihY7gUH/iQCz7xwpHPgr/qBoRo7bQYOSfAXIFbQP8DAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:33:52.029175Z"},"content_sha256":"930fd04dc7d65a52d326149d1fbf7b56a81a8bdf521c74a258e693bced89a05d","schema_version":"1.0","event_id":"sha256:930fd04dc7d65a52d326149d1fbf7b56a81a8bdf521c74a258e693bced89a05d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:U5JNEVRQJCXCEZFWUANHBIAPPM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploration Based Language Learning for Text-Based Games","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CL","authors_text":"Adrien Ecoffet, Alexandros Papangelis, Andrea Madotto, Chandra Khatri, Dian Yu, Gokhan Tur, Huaixiu Zheng, Joost Huizinga, Mahdi Namazifar, Piero Molino","submitted_at":"2020-01-24T03:03:51Z","abstract_excerpt":"This work presents an exploration and imitation-learning-based agent capable of state-of-the-art performance in playing text-based computer games. Text-based computer games describe their world to the player through natural language and expect the player to interact with the game using text. These games are of interest as they can be seen as a testbed for language understanding, problem-solving, and language generation by artificial agents. Moreover, they provide a learning environment in which these skills can be acquired through interactions with an environment rather than using fixed corpor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08868","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/2001.08868/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":"2026-07-05T01:08:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HKaVap0CognBMpTgpUAdbO99HMCUmokB1s/dj8cWm6gGZhneX1ArbYRqjJS7lf4jaQmYaj0sPOkNAzjTTBsnCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:33:52.029698Z"},"content_sha256":"675fd3473104b0a563f57bd12718682995a53bb727f753364868be2f07e72976","schema_version":"1.0","event_id":"sha256:675fd3473104b0a563f57bd12718682995a53bb727f753364868be2f07e72976"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U5JNEVRQJCXCEZFWUANHBIAPPM/bundle.json","state_url":"https://pith.science/pith/U5JNEVRQJCXCEZFWUANHBIAPPM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U5JNEVRQJCXCEZFWUANHBIAPPM/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":"2026-08-12T16:33:52Z","links":{"resolver":"https://pith.science/pith/U5JNEVRQJCXCEZFWUANHBIAPPM","bundle":"https://pith.science/pith/U5JNEVRQJCXCEZFWUANHBIAPPM/bundle.json","state":"https://pith.science/pith/U5JNEVRQJCXCEZFWUANHBIAPPM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U5JNEVRQJCXCEZFWUANHBIAPPM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:U5JNEVRQJCXCEZFWUANHBIAPPM","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":"e548a532ade56c436644b42b39f507b133b0fe5e64615272eb30a027034dbf69","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-01-24T03:03:51Z","title_canon_sha256":"01b17d1099fd3907e13ca467bdd4e238f7f2eeb2902d9c16cc634ccf66e2980e"},"schema_version":"1.0","source":{"id":"2001.08868","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08868","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08868v2","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08868","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"pith_short_12","alias_value":"U5JNEVRQJCXC","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"pith_short_16","alias_value":"U5JNEVRQJCXCEZFW","created_at":"2026-07-05T01:08:26Z"},{"alias_kind":"pith_short_8","alias_value":"U5JNEVRQ","created_at":"2026-07-05T01:08:26Z"}],"graph_snapshots":[{"event_id":"sha256:675fd3473104b0a563f57bd12718682995a53bb727f753364868be2f07e72976","target":"graph","created_at":"2026-07-05T01:08:26Z","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/2001.08868/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This work presents an exploration and imitation-learning-based agent capable of state-of-the-art performance in playing text-based computer games. Text-based computer games describe their world to the player through natural language and expect the player to interact with the game using text. These games are of interest as they can be seen as a testbed for language understanding, problem-solving, and language generation by artificial agents. Moreover, they provide a learning environment in which these skills can be acquired through interactions with an environment rather than using fixed corpor","authors_text":"Adrien Ecoffet, Alexandros Papangelis, Andrea Madotto, Chandra Khatri, Dian Yu, Gokhan Tur, Huaixiu Zheng, Joost Huizinga, Mahdi Namazifar, Piero Molino","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-01-24T03:03:51Z","title":"Exploration Based Language Learning for Text-Based Games"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08868","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":"sha256:930fd04dc7d65a52d326149d1fbf7b56a81a8bdf521c74a258e693bced89a05d","target":"record","created_at":"2026-07-05T01:08:26Z","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":"e548a532ade56c436644b42b39f507b133b0fe5e64615272eb30a027034dbf69","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2020-01-24T03:03:51Z","title_canon_sha256":"01b17d1099fd3907e13ca467bdd4e238f7f2eeb2902d9c16cc634ccf66e2980e"},"schema_version":"1.0","source":{"id":"2001.08868","kind":"arxiv","version":2}},"canonical_sha256":"a752d2563048ae2264b6a01a70a00f7b030814e4fe049e55f7840e1bec3abf2c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a752d2563048ae2264b6a01a70a00f7b030814e4fe049e55f7840e1bec3abf2c","first_computed_at":"2026-07-05T01:08:26.671683Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:08:26.671683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VnyNKTWVtegxz+qXyBbijgNx+bbXka3H0M0C4MZlPcr63ovNZ6tyIEn7X97jK+UKQ/QBykCj0CbsWIqBxU8qBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:08:26.672094Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.08868","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:930fd04dc7d65a52d326149d1fbf7b56a81a8bdf521c74a258e693bced89a05d","sha256:675fd3473104b0a563f57bd12718682995a53bb727f753364868be2f07e72976"],"state_sha256":"898f77cb11fed1f7ee22450f21c25777bb3f2e76f8cea93319831d3d519d2142"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TZouPzwj4S5tBuvWzZHTAsUhdtskmECA2x+Ne90GNwe4lo77o3IOGHaiTt1BJhkxmZNIN81p03OpDFOjJvfRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T16:33:52.034536Z","bundle_sha256":"f218b0abc2064a7415f96764d239011d08e9acee12a6130e72fe093c88edc52c"}}