{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:HZ6DEE3QMYEMMO6LY57GYI66KK","short_pith_number":"pith:HZ6DEE3Q","canonical_record":{"source":{"id":"2607.17780","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2026-07-20T10:11:53Z","cross_cats_sorted":["cs.AI","cs.LG","cs.MA"],"title_canon_sha256":"611f034a93d4b8e0d1e3f8ca41179a8d306242287de1fc35cd9f81afde0e9937","abstract_canon_sha256":"7b769050645aa2d58f869495e0ddadf5af115be72b000bb6ca68b25f115efd80"},"schema_version":"1.0"},"canonical_sha256":"3e7c3213706608c63bcbc77e6c23de52a24ec744c22ac2c3eb45db768dabaf54","source":{"kind":"arxiv","id":"2607.17780","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.17780","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"arxiv_version","alias_value":"2607.17780v1","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.17780","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"pith_short_12","alias_value":"HZ6DEE3QMYEM","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"pith_short_16","alias_value":"HZ6DEE3QMYEMMO6L","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"pith_short_8","alias_value":"HZ6DEE3Q","created_at":"2026-07-21T02:21:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:HZ6DEE3QMYEMMO6LY57GYI66KK","target":"record","payload":{"canonical_record":{"source":{"id":"2607.17780","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2026-07-20T10:11:53Z","cross_cats_sorted":["cs.AI","cs.LG","cs.MA"],"title_canon_sha256":"611f034a93d4b8e0d1e3f8ca41179a8d306242287de1fc35cd9f81afde0e9937","abstract_canon_sha256":"7b769050645aa2d58f869495e0ddadf5af115be72b000bb6ca68b25f115efd80"},"schema_version":"1.0"},"canonical_sha256":"3e7c3213706608c63bcbc77e6c23de52a24ec744c22ac2c3eb45db768dabaf54","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-21T02:21:59.828411Z","signature_b64":"3YcrRiZSDskuAvkUEOPivNI5tV1D+JIADaFJOpbho0LDFUrocKzU3Y8rGzLQiswQVJHQVDq91PtU1cYNxK0fDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e7c3213706608c63bcbc77e6c23de52a24ec744c22ac2c3eb45db768dabaf54","last_reissued_at":"2026-07-21T02:21:59.827557Z","signature_status":"signed_v1","first_computed_at":"2026-07-21T02:21:59.827557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.17780","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":"2026-07-21T02:21:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UF2j+rLqqCPQqfWW4PXTliC9qSgZLwNzyKX3rSkfnFsl0Hh9pvl3CcmX/SsnoNlBpz3C/RF6QI90uYNMo5oLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:10:58.343610Z"},"content_sha256":"8e76bbc134851c3e12b208afda94b754027a5da55ff32f30085e05af9ef74145","schema_version":"1.0","event_id":"sha256:8e76bbc134851c3e12b208afda94b754027a5da55ff32f30085e05af9ef74145"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:HZ6DEE3QMYEMMO6LY57GYI66KK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ETAS: An Effect-Typed Language for Agent Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI","cs.LG","cs.MA"],"primary_cat":"cs.PL","authors_text":"Huiri Tan, Jiasi Shen, Puyang Zhang, Shangyu Li, Yikun Wang","submitted_at":"2026-07-20T10:11:53Z","abstract_excerpt":"ETAS is a programming language for agent systems that treats model-backed agents, tool calls, prompts, typed memory, human approvals, policies, and execution traces as semantic program elements rather than library conventions. It separates deterministic computation from agentic nondeterminism and externally visible actions while preserving a direct programming style.\n  We present the core design of ETAS. Its static semantics assigns ordinary types through spec conformance and tracks each computation with two behavioral indices: an escaping effect row and a persistent abstraction of the typed a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.17780","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/2607.17780/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":"2026-07-21T02:21:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vJdoARTrav8L6Uw7xDYzhIAw2ma2ltgwZn8AKv8MOA/Dj4eFSOlyW1+o/Mtln+YToEf4LCax1sg254OjF3Z4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:10:58.343941Z"},"content_sha256":"27cfc878e81696965324b7eece9d9713e6ad1058f66269caa3e6e9a3060d8257","schema_version":"1.0","event_id":"sha256:27cfc878e81696965324b7eece9d9713e6ad1058f66269caa3e6e9a3060d8257"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HZ6DEE3QMYEMMO6LY57GYI66KK/bundle.json","state_url":"https://pith.science/pith/HZ6DEE3QMYEMMO6LY57GYI66KK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HZ6DEE3QMYEMMO6LY57GYI66KK/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":"2026-08-20T12:10:58Z","links":{"resolver":"https://pith.science/pith/HZ6DEE3QMYEMMO6LY57GYI66KK","bundle":"https://pith.science/pith/HZ6DEE3QMYEMMO6LY57GYI66KK/bundle.json","state":"https://pith.science/pith/HZ6DEE3QMYEMMO6LY57GYI66KK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HZ6DEE3QMYEMMO6LY57GYI66KK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:HZ6DEE3QMYEMMO6LY57GYI66KK","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":"7b769050645aa2d58f869495e0ddadf5af115be72b000bb6ca68b25f115efd80","cross_cats_sorted":["cs.AI","cs.LG","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2026-07-20T10:11:53Z","title_canon_sha256":"611f034a93d4b8e0d1e3f8ca41179a8d306242287de1fc35cd9f81afde0e9937"},"schema_version":"1.0","source":{"id":"2607.17780","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.17780","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"arxiv_version","alias_value":"2607.17780v1","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.17780","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"pith_short_12","alias_value":"HZ6DEE3QMYEM","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"pith_short_16","alias_value":"HZ6DEE3QMYEMMO6L","created_at":"2026-07-21T02:21:59Z"},{"alias_kind":"pith_short_8","alias_value":"HZ6DEE3Q","created_at":"2026-07-21T02:21:59Z"}],"graph_snapshots":[{"event_id":"sha256:27cfc878e81696965324b7eece9d9713e6ad1058f66269caa3e6e9a3060d8257","target":"graph","created_at":"2026-07-21T02:21:59Z","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/2607.17780/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"ETAS is a programming language for agent systems that treats model-backed agents, tool calls, prompts, typed memory, human approvals, policies, and execution traces as semantic program elements rather than library conventions. It separates deterministic computation from agentic nondeterminism and externally visible actions while preserving a direct programming style.\n  We present the core design of ETAS. Its static semantics assigns ordinary types through spec conformance and tracks each computation with two behavioral indices: an escaping effect row and a persistent abstraction of the typed a","authors_text":"Huiri Tan, Jiasi Shen, Puyang Zhang, Shangyu Li, Yikun Wang","cross_cats":["cs.AI","cs.LG","cs.MA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2026-07-20T10:11:53Z","title":"ETAS: An Effect-Typed Language for Agent Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.17780","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":"sha256:8e76bbc134851c3e12b208afda94b754027a5da55ff32f30085e05af9ef74145","target":"record","created_at":"2026-07-21T02:21:59Z","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":"7b769050645aa2d58f869495e0ddadf5af115be72b000bb6ca68b25f115efd80","cross_cats_sorted":["cs.AI","cs.LG","cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2026-07-20T10:11:53Z","title_canon_sha256":"611f034a93d4b8e0d1e3f8ca41179a8d306242287de1fc35cd9f81afde0e9937"},"schema_version":"1.0","source":{"id":"2607.17780","kind":"arxiv","version":1}},"canonical_sha256":"3e7c3213706608c63bcbc77e6c23de52a24ec744c22ac2c3eb45db768dabaf54","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e7c3213706608c63bcbc77e6c23de52a24ec744c22ac2c3eb45db768dabaf54","first_computed_at":"2026-07-21T02:21:59.827557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T02:21:59.827557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3YcrRiZSDskuAvkUEOPivNI5tV1D+JIADaFJOpbho0LDFUrocKzU3Y8rGzLQiswQVJHQVDq91PtU1cYNxK0fDw==","signature_status":"signed_v1","signed_at":"2026-07-21T02:21:59.828411Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.17780","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e76bbc134851c3e12b208afda94b754027a5da55ff32f30085e05af9ef74145","sha256:27cfc878e81696965324b7eece9d9713e6ad1058f66269caa3e6e9a3060d8257"],"state_sha256":"54c10b1dd51d91eb4624f41e47c8b396e544d674b2b2bfaca04f7a3ba9cd7fcb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aVJWqCxWbcSG45NfUiQs6v2DAntx4RTPEPZaBsQa+lLgZQdwpR3MlpF4BYQFjZgfKdfW9Slz41CITACFa9NODA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T12:10:58.347524Z","bundle_sha256":"560e572564968bbc74d1b4e7c2bae7119074f4839b36f0f78b67b0ca8d5e1b8e"}}