{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BUQEVA56KHEEQXTBH6RM24XD33","short_pith_number":"pith:BUQEVA56","canonical_record":{"source":{"id":"2501.13520","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-01-23T10:13:57Z","cross_cats_sorted":["cs.DC","cs.DM"],"title_canon_sha256":"62316664eab3d0ab23abdb7cc2bab0226f3a246bb474396758c0486df5b188b1","abstract_canon_sha256":"2e1734b210cb9e0e964360eca4948a1231b9d731170755736a666f750acef460"},"schema_version":"1.0"},"canonical_sha256":"0d204a83be51c8485e613fa2cd72e3dee80aa14995f80eb4bf53cd85881537c9","source":{"kind":"arxiv","id":"2501.13520","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.13520","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"arxiv_version","alias_value":"2501.13520v1","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.13520","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"pith_short_12","alias_value":"BUQEVA56KHEE","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"pith_short_16","alias_value":"BUQEVA56KHEEQXTB","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"pith_short_8","alias_value":"BUQEVA56","created_at":"2026-07-05T10:04:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BUQEVA56KHEEQXTBH6RM24XD33","target":"record","payload":{"canonical_record":{"source":{"id":"2501.13520","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-01-23T10:13:57Z","cross_cats_sorted":["cs.DC","cs.DM"],"title_canon_sha256":"62316664eab3d0ab23abdb7cc2bab0226f3a246bb474396758c0486df5b188b1","abstract_canon_sha256":"2e1734b210cb9e0e964360eca4948a1231b9d731170755736a666f750acef460"},"schema_version":"1.0"},"canonical_sha256":"0d204a83be51c8485e613fa2cd72e3dee80aa14995f80eb4bf53cd85881537c9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:04:29.847189Z","signature_b64":"lEqzS/rxTQAIQQQxxb/TNuYDRbnh5X8LeEiLEon3p8WL2t2K2z2ETx8Xilcr1SNzef7jLBdKjODZR9dJ36OlDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d204a83be51c8485e613fa2cd72e3dee80aa14995f80eb4bf53cd85881537c9","last_reissued_at":"2026-07-05T10:04:29.846774Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:04:29.846774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.13520","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":"2026-07-05T10:04:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xN8PklRPjtOlrMvOaZgGauq18JAXJRwhOPsHqK01L1lKdqOKoYzPSfzduZqle13ozh+roDm+nb8BRW+0ga39CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:44:37.040022Z"},"content_sha256":"8be4228a7d2b4ea27d255d11cbcc7ab907da90ab1479b55e85a18372c350b402","schema_version":"1.0","event_id":"sha256:8be4228a7d2b4ea27d255d11cbcc7ab907da90ab1479b55e85a18372c350b402"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BUQEVA56KHEEQXTBH6RM24XD33","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Network Centrality as a New Perspective on Microservice Architecture","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.DC","cs.DM"],"primary_cat":"cs.SE","authors_text":"Alexander Bakhtin, Davide Taibi, Matteo Esposito, Valentina Lenarduzzi","submitted_at":"2025-01-23T10:13:57Z","abstract_excerpt":"Context: Over the past decade, the adoption of Microservice Architecture (MSA) has led to the identification of various patterns and anti-patterns, such as Nano/Mega/Hub services. Detecting these anti-patterns often involves modeling the system as a Service Dependency Graph (SDG) and applying graph-theoretic approaches. Aim: While previous research has explored software metrics (SMs) such as size, complexity, and quality for assessing MSAs, the potential of graph-specific metrics like network centrality remains largely unexplored. This study investigates whether centrality metrics (CMs) can pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.13520","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/2501.13520/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":"2026-07-05T10:04:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+0Y1/AKp6uqeH3JUAYi387njeD17tV/b2BvMp98dXZlwk+pzStOehr9A93x41e3Qkhyg2wQuk2SAUEJ0CE9WDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:44:37.040777Z"},"content_sha256":"e348e7ea6c79fbe84938ec1c35171753913774730baca32c12f403fc8017cee7","schema_version":"1.0","event_id":"sha256:e348e7ea6c79fbe84938ec1c35171753913774730baca32c12f403fc8017cee7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BUQEVA56KHEEQXTBH6RM24XD33/bundle.json","state_url":"https://pith.science/pith/BUQEVA56KHEEQXTBH6RM24XD33/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BUQEVA56KHEEQXTBH6RM24XD33/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":"2026-08-12T08:44:37Z","links":{"resolver":"https://pith.science/pith/BUQEVA56KHEEQXTBH6RM24XD33","bundle":"https://pith.science/pith/BUQEVA56KHEEQXTBH6RM24XD33/bundle.json","state":"https://pith.science/pith/BUQEVA56KHEEQXTBH6RM24XD33/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BUQEVA56KHEEQXTBH6RM24XD33/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BUQEVA56KHEEQXTBH6RM24XD33","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":"2e1734b210cb9e0e964360eca4948a1231b9d731170755736a666f750acef460","cross_cats_sorted":["cs.DC","cs.DM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-01-23T10:13:57Z","title_canon_sha256":"62316664eab3d0ab23abdb7cc2bab0226f3a246bb474396758c0486df5b188b1"},"schema_version":"1.0","source":{"id":"2501.13520","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.13520","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"arxiv_version","alias_value":"2501.13520v1","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.13520","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"pith_short_12","alias_value":"BUQEVA56KHEE","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"pith_short_16","alias_value":"BUQEVA56KHEEQXTB","created_at":"2026-07-05T10:04:29Z"},{"alias_kind":"pith_short_8","alias_value":"BUQEVA56","created_at":"2026-07-05T10:04:29Z"}],"graph_snapshots":[{"event_id":"sha256:e348e7ea6c79fbe84938ec1c35171753913774730baca32c12f403fc8017cee7","target":"graph","created_at":"2026-07-05T10:04:29Z","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/2501.13520/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Context: Over the past decade, the adoption of Microservice Architecture (MSA) has led to the identification of various patterns and anti-patterns, such as Nano/Mega/Hub services. Detecting these anti-patterns often involves modeling the system as a Service Dependency Graph (SDG) and applying graph-theoretic approaches. Aim: While previous research has explored software metrics (SMs) such as size, complexity, and quality for assessing MSAs, the potential of graph-specific metrics like network centrality remains largely unexplored. This study investigates whether centrality metrics (CMs) can pr","authors_text":"Alexander Bakhtin, Davide Taibi, Matteo Esposito, Valentina Lenarduzzi","cross_cats":["cs.DC","cs.DM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-01-23T10:13:57Z","title":"Network Centrality as a New Perspective on Microservice Architecture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.13520","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":"sha256:8be4228a7d2b4ea27d255d11cbcc7ab907da90ab1479b55e85a18372c350b402","target":"record","created_at":"2026-07-05T10:04:29Z","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":"2e1734b210cb9e0e964360eca4948a1231b9d731170755736a666f750acef460","cross_cats_sorted":["cs.DC","cs.DM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SE","submitted_at":"2025-01-23T10:13:57Z","title_canon_sha256":"62316664eab3d0ab23abdb7cc2bab0226f3a246bb474396758c0486df5b188b1"},"schema_version":"1.0","source":{"id":"2501.13520","kind":"arxiv","version":1}},"canonical_sha256":"0d204a83be51c8485e613fa2cd72e3dee80aa14995f80eb4bf53cd85881537c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d204a83be51c8485e613fa2cd72e3dee80aa14995f80eb4bf53cd85881537c9","first_computed_at":"2026-07-05T10:04:29.846774Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:04:29.846774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lEqzS/rxTQAIQQQxxb/TNuYDRbnh5X8LeEiLEon3p8WL2t2K2z2ETx8Xilcr1SNzef7jLBdKjODZR9dJ36OlDg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:04:29.847189Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.13520","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8be4228a7d2b4ea27d255d11cbcc7ab907da90ab1479b55e85a18372c350b402","sha256:e348e7ea6c79fbe84938ec1c35171753913774730baca32c12f403fc8017cee7"],"state_sha256":"27e2a51e5ed06545f431ee7c22085f56349521af7cc39ef1548624980b348b34"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ct/U0LUkYfvgxgeQEvhmE2L8h8KP0ZjyupteGjuCwXMpaR56voC9oTuChJ8cDOOifhQdaTQ1aJfBjGalX6gXAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T08:44:37.046506Z","bundle_sha256":"de617e5fc38b0089674204e69a89a27e23ce1922e93dee261fcd28d470dcfa1b"}}