{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:NGQGNQMXJCQMG27UALROQMRVGZ","short_pith_number":"pith:NGQGNQMX","canonical_record":{"source":{"id":"2607.26642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-29T09:04:25Z","cross_cats_sorted":[],"title_canon_sha256":"d15e848d5a42b300d8f4e4374f24830f3a053a119761b4da64460ae88bc827d4","abstract_canon_sha256":"0452e4be0dda3444d6a39c656ed016c39b374b278e4473ac22b061e0419233ee"},"schema_version":"1.0"},"canonical_sha256":"69a066c19748a0c36bf402e2e832353650c10e964dbd858dea393073efad6360","source":{"kind":"arxiv","id":"2607.26642","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.26642","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2607.26642v1","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26642","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"NGQGNQMXJCQM","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"NGQGNQMXJCQMG27U","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"NGQGNQMX","created_at":"2026-07-30T01:21:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:NGQGNQMXJCQMG27UALROQMRVGZ","target":"record","payload":{"canonical_record":{"source":{"id":"2607.26642","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-29T09:04:25Z","cross_cats_sorted":[],"title_canon_sha256":"d15e848d5a42b300d8f4e4374f24830f3a053a119761b4da64460ae88bc827d4","abstract_canon_sha256":"0452e4be0dda3444d6a39c656ed016c39b374b278e4473ac22b061e0419233ee"},"schema_version":"1.0"},"canonical_sha256":"69a066c19748a0c36bf402e2e832353650c10e964dbd858dea393073efad6360","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"69a066c19748a0c36bf402e2e832353650c10e964dbd858dea393073efad6360","last_reissued_at":"2026-07-30T01:21:40.204402Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-30T01:21:40.204402Z"},"source_kind":"arxiv","source_id":"2607.26642","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":"2026-07-30T01:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bDdbXWXTVJ54NGx0i37+rco/QBVg46WRSn4/hVBaO68Bi7HcufZToVWzQyS/W+kStn0E+8ZVYLYfzk9I/Wp/AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:12:12.743635Z"},"content_sha256":"ad5d7b2796c11d0e12c9b256deda2e95dbe6769e054ade2c4f36f7a00b01c65a","schema_version":"1.0","event_id":"sha256:ad5d7b2796c11d0e12c9b256deda2e95dbe6769e054ade2c4f36f7a00b01c65a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:NGQGNQMXJCQMG27UALROQMRVGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"AlphaSchema: Exploring the Space of Trading Semantics for LLM-Based Alpha Mining","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Jian Li, Jian Yang, Jingyang Yi, Yifei Jin, Yuqi Li","submitted_at":"2026-07-29T09:04:25Z","abstract_excerpt":"Automated alpha mining has increasingly adopted large language model (LLM) agents for factor generation and iterative discovery. However, existing LLM-based systems often delegate both factor construction and search decisions to the agent itself, without an explicit exploration space or a principled mechanism for navigating that space. As a result, exploration remains largely implicit and difficult to control or optimize systematically. We introduce AlphaSchema, which constructs and explores a structured space of trading semantics for alpha mining. Each point in this space is a schema plan com"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26642","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.26642/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":"2026-07-30T01:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/n7T9mJ/Cl+/2EL3sbgqqp4gwTcm0JPvH7VvCFJUHu2QsNnWWp+MYmWTFhyprf12ewlTqJabqqArhIKkM3nBBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T06:12:12.744143Z"},"content_sha256":"8c31b5130134c1914e3a7d19c897a3e3aecb634bc4f733c006022eef1deceb03","schema_version":"1.0","event_id":"sha256:8c31b5130134c1914e3a7d19c897a3e3aecb634bc4f733c006022eef1deceb03"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NGQGNQMXJCQMG27UALROQMRVGZ/bundle.json","state_url":"https://pith.science/pith/NGQGNQMXJCQMG27UALROQMRVGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NGQGNQMXJCQMG27UALROQMRVGZ/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":"2026-08-08T06:12:12Z","links":{"resolver":"https://pith.science/pith/NGQGNQMXJCQMG27UALROQMRVGZ","bundle":"https://pith.science/pith/NGQGNQMXJCQMG27UALROQMRVGZ/bundle.json","state":"https://pith.science/pith/NGQGNQMXJCQMG27UALROQMRVGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NGQGNQMXJCQMG27UALROQMRVGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:NGQGNQMXJCQMG27UALROQMRVGZ","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":"0452e4be0dda3444d6a39c656ed016c39b374b278e4473ac22b061e0419233ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-29T09:04:25Z","title_canon_sha256":"d15e848d5a42b300d8f4e4374f24830f3a053a119761b4da64460ae88bc827d4"},"schema_version":"1.0","source":{"id":"2607.26642","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.26642","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2607.26642v1","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.26642","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"NGQGNQMXJCQM","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"NGQGNQMXJCQMG27U","created_at":"2026-07-30T01:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"NGQGNQMX","created_at":"2026-07-30T01:21:40Z"}],"graph_snapshots":[{"event_id":"sha256:8c31b5130134c1914e3a7d19c897a3e3aecb634bc4f733c006022eef1deceb03","target":"graph","created_at":"2026-07-30T01:21:40Z","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/2607.26642/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Automated alpha mining has increasingly adopted large language model (LLM) agents for factor generation and iterative discovery. However, existing LLM-based systems often delegate both factor construction and search decisions to the agent itself, without an explicit exploration space or a principled mechanism for navigating that space. As a result, exploration remains largely implicit and difficult to control or optimize systematically. We introduce AlphaSchema, which constructs and explores a structured space of trading semantics for alpha mining. Each point in this space is a schema plan com","authors_text":"Jian Li, Jian Yang, Jingyang Yi, Yifei Jin, Yuqi Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-29T09:04:25Z","title":"AlphaSchema: Exploring the Space of Trading Semantics for LLM-Based Alpha Mining"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.26642","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:ad5d7b2796c11d0e12c9b256deda2e95dbe6769e054ade2c4f36f7a00b01c65a","target":"record","created_at":"2026-07-30T01:21:40Z","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":"0452e4be0dda3444d6a39c656ed016c39b374b278e4473ac22b061e0419233ee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2026-07-29T09:04:25Z","title_canon_sha256":"d15e848d5a42b300d8f4e4374f24830f3a053a119761b4da64460ae88bc827d4"},"schema_version":"1.0","source":{"id":"2607.26642","kind":"arxiv","version":1}},"canonical_sha256":"69a066c19748a0c36bf402e2e832353650c10e964dbd858dea393073efad6360","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"69a066c19748a0c36bf402e2e832353650c10e964dbd858dea393073efad6360","first_computed_at":"2026-07-30T01:21:40.204402Z","kind":"pith_receipt","last_reissued_at":"2026-07-30T01:21:40.204402Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.26642","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad5d7b2796c11d0e12c9b256deda2e95dbe6769e054ade2c4f36f7a00b01c65a","sha256:8c31b5130134c1914e3a7d19c897a3e3aecb634bc4f733c006022eef1deceb03"],"state_sha256":"d9e612edbf8344767e5e3b7b5a81081a4265ca38badd9447b67eb154a89370f6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ms5Qsp9MGnLo+8LWs4CvFbvpEX8PkNsdbRHiMpU7NalbGcQOgD5uOfGVnBqQyCsF6nkOVoC+RuX7MButNC4tAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T06:12:12.749402Z","bundle_sha256":"a9a60adc0ef2980546646aefde51926cce8ae440aab5e62e700de5dc30d925d4"}}