{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:2DBH3L6WV67H7QGUC2MBCLVNI6","short_pith_number":"pith:2DBH3L6W","canonical_record":{"source":{"id":"2605.26542","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-05-26T04:44:59Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"50bcb5e920f28be9d657a4890db34dce655207c7894143b5372add2cd3b18ada","abstract_canon_sha256":"2f8759c643c8ffcd2676da1ed4b2c1983d4ff42327a7f2d3338cd4a12294b3d1"},"schema_version":"1.0"},"canonical_sha256":"d0c27dafd6afbe7fc0d41698112ead479bc30b0b82e057919d5a1218d926b3e8","source":{"kind":"arxiv","id":"2605.26542","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26542","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26542v1","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26542","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"2DBH3L6WV67H","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"2DBH3L6WV67H7QGU","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"2DBH3L6W","created_at":"2026-05-27T01:05:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:2DBH3L6WV67H7QGUC2MBCLVNI6","target":"record","payload":{"canonical_record":{"source":{"id":"2605.26542","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-05-26T04:44:59Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"50bcb5e920f28be9d657a4890db34dce655207c7894143b5372add2cd3b18ada","abstract_canon_sha256":"2f8759c643c8ffcd2676da1ed4b2c1983d4ff42327a7f2d3338cd4a12294b3d1"},"schema_version":"1.0"},"canonical_sha256":"d0c27dafd6afbe7fc0d41698112ead479bc30b0b82e057919d5a1218d926b3e8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-27T01:05:25.734443Z","signature_b64":"ngAHs5qIDPJobbbKfRfs+fI8GafUB/Q2oKFeC6Ddn2metKdFj3MlBnoaom8gxQaT8J/13/88RILN3cXKsrpHBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0c27dafd6afbe7fc0d41698112ead479bc30b0b82e057919d5a1218d926b3e8","last_reissued_at":"2026-05-27T01:05:25.733822Z","signature_status":"signed_v1","first_computed_at":"2026-05-27T01:05:25.733822Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.26542","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":"2026-05-27T01:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0IEnQh18EVlh6tG/oGbYdamhqpWp+K4BAwYgvItVOkIMQ+73N8Pi/+bwjZ4f9IiEnFKRt9rEY7R3TOa5oW4cAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T05:50:41.046725Z"},"content_sha256":"7da17383fa5324092b91669c70e7801d566b28c237364abb59bf91cccc5b4bba","schema_version":"1.0","event_id":"sha256:7da17383fa5324092b91669c70e7801d566b28c237364abb59bf91cccc5b4bba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:2DBH3L6WV67H7QGUC2MBCLVNI6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ChainCaps: Composition-Safe Tool-Using Agents via Monotonic Capability Attenuation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CR","authors_text":"Haoran Yu, Lifei Liu, Shiqi Yang, Xiaochong Jiang, Yichen Liu, Ziwei Li","submitted_at":"2026-05-26T04:44:59Z","abstract_excerpt":"Tool-using agents increasingly operate in open-ended deployment environments, where they compose file systems, web APIs, code interpreters, and enterprise services at runtime. This creates a safety gap in tool composition: an agent can satisfy every per-tool permission check and still produce an unsafe end-to-end effect, such as reading a confidential document, summarizing it, and sending the summary to an external endpoint. We call this failure mode permission laundering. ChainCaps addresses it with a runtime rule: every value carries a sink-specific capability budget, and tool composition pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26542","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/2605.26542/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":"2026-05-27T01:05:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g2cUng0mWHCezieUmUYnkEgSpkb8idrYbEHoStZmoUIHiVMyAvxTU5XjUwFv0rVGNvWr6XpG1Vhpuq0xLHGpDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T05:50:41.047567Z"},"content_sha256":"dbb1e3835bb4df34f94235701d605645834cb3b0224aeb6c852497014d334be1","schema_version":"1.0","event_id":"sha256:dbb1e3835bb4df34f94235701d605645834cb3b0224aeb6c852497014d334be1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2DBH3L6WV67H7QGUC2MBCLVNI6/bundle.json","state_url":"https://pith.science/pith/2DBH3L6WV67H7QGUC2MBCLVNI6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2DBH3L6WV67H7QGUC2MBCLVNI6/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":"2026-05-31T05:50:41Z","links":{"resolver":"https://pith.science/pith/2DBH3L6WV67H7QGUC2MBCLVNI6","bundle":"https://pith.science/pith/2DBH3L6WV67H7QGUC2MBCLVNI6/bundle.json","state":"https://pith.science/pith/2DBH3L6WV67H7QGUC2MBCLVNI6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2DBH3L6WV67H7QGUC2MBCLVNI6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2DBH3L6WV67H7QGUC2MBCLVNI6","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":"2f8759c643c8ffcd2676da1ed4b2c1983d4ff42327a7f2d3338cd4a12294b3d1","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-05-26T04:44:59Z","title_canon_sha256":"50bcb5e920f28be9d657a4890db34dce655207c7894143b5372add2cd3b18ada"},"schema_version":"1.0","source":{"id":"2605.26542","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.26542","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"arxiv_version","alias_value":"2605.26542v1","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.26542","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_12","alias_value":"2DBH3L6WV67H","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_16","alias_value":"2DBH3L6WV67H7QGU","created_at":"2026-05-27T01:05:25Z"},{"alias_kind":"pith_short_8","alias_value":"2DBH3L6W","created_at":"2026-05-27T01:05:25Z"}],"graph_snapshots":[{"event_id":"sha256:dbb1e3835bb4df34f94235701d605645834cb3b0224aeb6c852497014d334be1","target":"graph","created_at":"2026-05-27T01:05:25Z","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/2605.26542/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Tool-using agents increasingly operate in open-ended deployment environments, where they compose file systems, web APIs, code interpreters, and enterprise services at runtime. This creates a safety gap in tool composition: an agent can satisfy every per-tool permission check and still produce an unsafe end-to-end effect, such as reading a confidential document, summarizing it, and sending the summary to an external endpoint. We call this failure mode permission laundering. ChainCaps addresses it with a runtime rule: every value carries a sink-specific capability budget, and tool composition pr","authors_text":"Haoran Yu, Lifei Liu, Shiqi Yang, Xiaochong Jiang, Yichen Liu, Ziwei Li","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-05-26T04:44:59Z","title":"ChainCaps: Composition-Safe Tool-Using Agents via Monotonic Capability Attenuation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.26542","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":"sha256:7da17383fa5324092b91669c70e7801d566b28c237364abb59bf91cccc5b4bba","target":"record","created_at":"2026-05-27T01:05:25Z","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":"2f8759c643c8ffcd2676da1ed4b2c1983d4ff42327a7f2d3338cd4a12294b3d1","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-05-26T04:44:59Z","title_canon_sha256":"50bcb5e920f28be9d657a4890db34dce655207c7894143b5372add2cd3b18ada"},"schema_version":"1.0","source":{"id":"2605.26542","kind":"arxiv","version":1}},"canonical_sha256":"d0c27dafd6afbe7fc0d41698112ead479bc30b0b82e057919d5a1218d926b3e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0c27dafd6afbe7fc0d41698112ead479bc30b0b82e057919d5a1218d926b3e8","first_computed_at":"2026-05-27T01:05:25.733822Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-27T01:05:25.733822Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ngAHs5qIDPJobbbKfRfs+fI8GafUB/Q2oKFeC6Ddn2metKdFj3MlBnoaom8gxQaT8J/13/88RILN3cXKsrpHBw==","signature_status":"signed_v1","signed_at":"2026-05-27T01:05:25.734443Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.26542","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7da17383fa5324092b91669c70e7801d566b28c237364abb59bf91cccc5b4bba","sha256:dbb1e3835bb4df34f94235701d605645834cb3b0224aeb6c852497014d334be1"],"state_sha256":"7df7e982e50e7565496fc1e2b3ff8e644a3880737c0a8906f8a9bec50bbf5c10"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wQnHwqeAXOGAFZBO2Tdwi3qJ4cynrgl8kcys6wiKlIdMbtRswHUW3sxUJkbxGeEUvNEyA1DmZhE02XjtZabUBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T05:50:41.052193Z","bundle_sha256":"897e35b46d97ed7a328d39cea6b98c942883809e90e0a0364dcb49acd7b64d8b"}}