{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4PAKNEZDLL66ODA442F4KRU56A","short_pith_number":"pith:4PAKNEZD","canonical_record":{"source":{"id":"2504.16902","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-04-23T17:27:49Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"8571cdcdffa633ea5028de9ff5100574614fe34ef3955a70b10dd7d99f0f8662","abstract_canon_sha256":"bf791d2c265d3cb6bae2913137657bbe9307bef1f371d28dec3bcbe47923723a"},"schema_version":"1.0"},"canonical_sha256":"e3c0a693235afde70c1ce68bc5469df00b8dae996ae2d85b02ba58f039da4bcc","source":{"kind":"arxiv","id":"2504.16902","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.16902","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"arxiv_version","alias_value":"2504.16902v2","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.16902","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"pith_short_12","alias_value":"4PAKNEZDLL66","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"pith_short_16","alias_value":"4PAKNEZDLL66ODA4","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"pith_short_8","alias_value":"4PAKNEZD","created_at":"2026-07-05T10:57:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4PAKNEZDLL66ODA442F4KRU56A","target":"record","payload":{"canonical_record":{"source":{"id":"2504.16902","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-04-23T17:27:49Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"8571cdcdffa633ea5028de9ff5100574614fe34ef3955a70b10dd7d99f0f8662","abstract_canon_sha256":"bf791d2c265d3cb6bae2913137657bbe9307bef1f371d28dec3bcbe47923723a"},"schema_version":"1.0"},"canonical_sha256":"e3c0a693235afde70c1ce68bc5469df00b8dae996ae2d85b02ba58f039da4bcc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:57:57.062244Z","signature_b64":"Wzc8fScMWzRIuP7nLjV3GvNy2tfVHhXaDEl+5qOHHskB5bbsUB9Ze5leoC+oOoWczOV4Q2nA1Q2lGcLKMRQ+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3c0a693235afde70c1ce68bc5469df00b8dae996ae2d85b02ba58f039da4bcc","last_reissued_at":"2026-07-05T10:57:57.061686Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:57:57.061686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.16902","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":"2026-07-05T10:57:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zxvM7iT756gQ6/YGtFrLZmn5JF5EpaMc3prNj1tVBNokYMjnyYRkTgBJpgFROherUbzxdlmlqoVFJrxovH0PBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T06:30:28.796991Z"},"content_sha256":"33a03978d9c3372fea97c6b745738aa4837ff803dd4fa61bbc67f7501244a4ce","schema_version":"1.0","event_id":"sha256:33a03978d9c3372fea97c6b745738aa4837ff803dd4fa61bbc67f7501244a4ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4PAKNEZDLL66ODA442F4KRU56A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Building A Secure Agentic AI Application Leveraging A2A Protocol","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CR","authors_text":"Idan Habler, Ken Huang, Prashant Kulkarni, Vineeth Sai Narajala","submitted_at":"2025-04-23T17:27:49Z","abstract_excerpt":"As Agentic AI systems evolve from basic workflows to complex multi agent collaboration, robust protocols such as Google's Agent2Agent (A2A) become essential enablers. To foster secure adoption and ensure the reliability of these complex interactions, understanding the secure implementation of A2A is essential. This paper addresses this goal by providing a comprehensive security analysis centered on the A2A protocol. We examine its fundamental elements and operational dynamics, situating it within the framework of agent communication development. Utilizing the MAESTRO framework, specifically de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.16902","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/2504.16902/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":"2026-07-05T10:57:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xbDjE2B4je8D1GF+UBBY3xTfcG+zjvU9Kg1pIGgsu2l6bkL4L9FFiOmQiJhPqL8vFtmbRczdU43QhIfZ2xgZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T06:30:28.797541Z"},"content_sha256":"b866a89c93532c79d57919bc587c9324e3ac17e3bb965fe7ee074c3e1b8c7995","schema_version":"1.0","event_id":"sha256:b866a89c93532c79d57919bc587c9324e3ac17e3bb965fe7ee074c3e1b8c7995"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4PAKNEZDLL66ODA442F4KRU56A/bundle.json","state_url":"https://pith.science/pith/4PAKNEZDLL66ODA442F4KRU56A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4PAKNEZDLL66ODA442F4KRU56A/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":"2026-08-09T06:30:28Z","links":{"resolver":"https://pith.science/pith/4PAKNEZDLL66ODA442F4KRU56A","bundle":"https://pith.science/pith/4PAKNEZDLL66ODA442F4KRU56A/bundle.json","state":"https://pith.science/pith/4PAKNEZDLL66ODA442F4KRU56A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4PAKNEZDLL66ODA442F4KRU56A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4PAKNEZDLL66ODA442F4KRU56A","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":"bf791d2c265d3cb6bae2913137657bbe9307bef1f371d28dec3bcbe47923723a","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-04-23T17:27:49Z","title_canon_sha256":"8571cdcdffa633ea5028de9ff5100574614fe34ef3955a70b10dd7d99f0f8662"},"schema_version":"1.0","source":{"id":"2504.16902","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.16902","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"arxiv_version","alias_value":"2504.16902v2","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.16902","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"pith_short_12","alias_value":"4PAKNEZDLL66","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"pith_short_16","alias_value":"4PAKNEZDLL66ODA4","created_at":"2026-07-05T10:57:57Z"},{"alias_kind":"pith_short_8","alias_value":"4PAKNEZD","created_at":"2026-07-05T10:57:57Z"}],"graph_snapshots":[{"event_id":"sha256:b866a89c93532c79d57919bc587c9324e3ac17e3bb965fe7ee074c3e1b8c7995","target":"graph","created_at":"2026-07-05T10:57:57Z","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/2504.16902/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As Agentic AI systems evolve from basic workflows to complex multi agent collaboration, robust protocols such as Google's Agent2Agent (A2A) become essential enablers. To foster secure adoption and ensure the reliability of these complex interactions, understanding the secure implementation of A2A is essential. This paper addresses this goal by providing a comprehensive security analysis centered on the A2A protocol. We examine its fundamental elements and operational dynamics, situating it within the framework of agent communication development. Utilizing the MAESTRO framework, specifically de","authors_text":"Idan Habler, Ken Huang, Prashant Kulkarni, Vineeth Sai Narajala","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-04-23T17:27:49Z","title":"Building A Secure Agentic AI Application Leveraging A2A Protocol"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.16902","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":"sha256:33a03978d9c3372fea97c6b745738aa4837ff803dd4fa61bbc67f7501244a4ce","target":"record","created_at":"2026-07-05T10:57:57Z","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":"bf791d2c265d3cb6bae2913137657bbe9307bef1f371d28dec3bcbe47923723a","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2025-04-23T17:27:49Z","title_canon_sha256":"8571cdcdffa633ea5028de9ff5100574614fe34ef3955a70b10dd7d99f0f8662"},"schema_version":"1.0","source":{"id":"2504.16902","kind":"arxiv","version":2}},"canonical_sha256":"e3c0a693235afde70c1ce68bc5469df00b8dae996ae2d85b02ba58f039da4bcc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3c0a693235afde70c1ce68bc5469df00b8dae996ae2d85b02ba58f039da4bcc","first_computed_at":"2026-07-05T10:57:57.061686Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:57:57.061686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wzc8fScMWzRIuP7nLjV3GvNy2tfVHhXaDEl+5qOHHskB5bbsUB9Ze5leoC+oOoWczOV4Q2nA1Q2lGcLKMRQ+AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:57:57.062244Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.16902","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33a03978d9c3372fea97c6b745738aa4837ff803dd4fa61bbc67f7501244a4ce","sha256:b866a89c93532c79d57919bc587c9324e3ac17e3bb965fe7ee074c3e1b8c7995"],"state_sha256":"5f934ce4e9b75f1ebc49d5cb4f8e581a5de9acdb61251b13f404c6198a5ef8ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AGZtziF+QbhAT2ddnQx6/y2NVG6OWmL0G4T/7HslMLFHB7gpBDn2NurJzbSh7lqBGrUWa1JL8G5ptNG3r8V/Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T06:30:28.800997Z","bundle_sha256":"2e416a61b2675327827d60ff40b195c4b8179509144df8227b5642ad71f23791"}}