{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:A7HNJPOIWQUFD6HHEJHZ2FLJ46","short_pith_number":"pith:A7HNJPOI","canonical_record":{"source":{"id":"2606.10663","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DB","submitted_at":"2026-06-09T10:13:07Z","cross_cats_sorted":[],"title_canon_sha256":"71ba1becc9ab4c8f3bdded29d04e1c63952c26f5930c7d229cf9a2025d2401fc","abstract_canon_sha256":"2a0051ea8c3c4ca56afd0c53075ef987923354ec5b9f8b3d3e4da18fb675d573"},"schema_version":"1.0"},"canonical_sha256":"07ced4bdc8b42851f8e7224f9d1569e7b9169854ca02d4351f149686d1b7dd52","source":{"kind":"arxiv","id":"2606.10663","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.10663","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"arxiv_version","alias_value":"2606.10663v1","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10663","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"pith_short_12","alias_value":"A7HNJPOIWQUF","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"pith_short_16","alias_value":"A7HNJPOIWQUFD6HH","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"pith_short_8","alias_value":"A7HNJPOI","created_at":"2026-06-10T01:10:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:A7HNJPOIWQUFD6HHEJHZ2FLJ46","target":"record","payload":{"canonical_record":{"source":{"id":"2606.10663","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DB","submitted_at":"2026-06-09T10:13:07Z","cross_cats_sorted":[],"title_canon_sha256":"71ba1becc9ab4c8f3bdded29d04e1c63952c26f5930c7d229cf9a2025d2401fc","abstract_canon_sha256":"2a0051ea8c3c4ca56afd0c53075ef987923354ec5b9f8b3d3e4da18fb675d573"},"schema_version":"1.0"},"canonical_sha256":"07ced4bdc8b42851f8e7224f9d1569e7b9169854ca02d4351f149686d1b7dd52","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:10:33.077556Z","signature_b64":"4mz9dDf1DyNBWahAXeYC7+kssoF05d3f28vQGZih5jse0TBbW4/s4OvhlMvvqWh7pQ3Q/VBRYzeW0srF87MCAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"07ced4bdc8b42851f8e7224f9d1569e7b9169854ca02d4351f149686d1b7dd52","last_reissued_at":"2026-06-10T01:10:33.076667Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:10:33.076667Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.10663","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":"2026-06-10T01:10:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QkU22oboFdKQ4dJ4cdJCsZO8XSfUIkjE8Gq7sMH2kJdS2vQaWjiJPuSPhskQ8/ycIhEm/41ec9vS/hhVpWRLAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T17:29:45.652408Z"},"content_sha256":"bd30cf216afd123dbf947b782d877e73189aa5444af446e16bd17a3a455b0ff6","schema_version":"1.0","event_id":"sha256:bd30cf216afd123dbf947b782d877e73189aa5444af446e16bd17a3a455b0ff6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:A7HNJPOIWQUFD6HHEJHZ2FLJ46","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reconstructing OPC UA Address Spaces from Time-Series Databases","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Hannes Unger, Lukas L\\\"urzer, Stefan Huber","submitted_at":"2026-06-09T10:13:07Z","abstract_excerpt":"OPC UA has become the dominant open protocol in operational technology. Time-series databases routinely archive OPC UA telemetry but discard the semantic metadata (node hierarchy, engineering units, and type definitions) which gives sensor values their meaning. Recovering this information from a time-series database is non-trivial: namespace indices recorded at the source are session-local and unstable across restarts, and naive merging across multiple source servers results in identifier collisions. We present opcua-ts, an implemented architecture that persists this semantic information along"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10663","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/2606.10663/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":"2026-06-10T01:10:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZOAhjV+fWKqu1gVn1kga1wUUWiMx7/LWSn0LEwuBE7jjPvKmPDzxBYMF2sZrgehfeAJZuqHyB8mdv63X4tT3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T17:29:45.652776Z"},"content_sha256":"d79cef44126b4eab11b7a889e28bd40b60685263d445af32831fafb4c2135280","schema_version":"1.0","event_id":"sha256:d79cef44126b4eab11b7a889e28bd40b60685263d445af32831fafb4c2135280"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46/bundle.json","state_url":"https://pith.science/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46/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":"2026-06-30T17:29:45Z","links":{"resolver":"https://pith.science/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46","bundle":"https://pith.science/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46/bundle.json","state":"https://pith.science/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A7HNJPOIWQUFD6HHEJHZ2FLJ46/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:A7HNJPOIWQUFD6HHEJHZ2FLJ46","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":"2a0051ea8c3c4ca56afd0c53075ef987923354ec5b9f8b3d3e4da18fb675d573","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DB","submitted_at":"2026-06-09T10:13:07Z","title_canon_sha256":"71ba1becc9ab4c8f3bdded29d04e1c63952c26f5930c7d229cf9a2025d2401fc"},"schema_version":"1.0","source":{"id":"2606.10663","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.10663","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"arxiv_version","alias_value":"2606.10663v1","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.10663","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"pith_short_12","alias_value":"A7HNJPOIWQUF","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"pith_short_16","alias_value":"A7HNJPOIWQUFD6HH","created_at":"2026-06-10T01:10:33Z"},{"alias_kind":"pith_short_8","alias_value":"A7HNJPOI","created_at":"2026-06-10T01:10:33Z"}],"graph_snapshots":[{"event_id":"sha256:d79cef44126b4eab11b7a889e28bd40b60685263d445af32831fafb4c2135280","target":"graph","created_at":"2026-06-10T01:10:33Z","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/2606.10663/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"OPC UA has become the dominant open protocol in operational technology. Time-series databases routinely archive OPC UA telemetry but discard the semantic metadata (node hierarchy, engineering units, and type definitions) which gives sensor values their meaning. Recovering this information from a time-series database is non-trivial: namespace indices recorded at the source are session-local and unstable across restarts, and naive merging across multiple source servers results in identifier collisions. We present opcua-ts, an implemented architecture that persists this semantic information along","authors_text":"Hannes Unger, Lukas L\\\"urzer, Stefan Huber","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DB","submitted_at":"2026-06-09T10:13:07Z","title":"Reconstructing OPC UA Address Spaces from Time-Series Databases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.10663","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:bd30cf216afd123dbf947b782d877e73189aa5444af446e16bd17a3a455b0ff6","target":"record","created_at":"2026-06-10T01:10:33Z","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":"2a0051ea8c3c4ca56afd0c53075ef987923354ec5b9f8b3d3e4da18fb675d573","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DB","submitted_at":"2026-06-09T10:13:07Z","title_canon_sha256":"71ba1becc9ab4c8f3bdded29d04e1c63952c26f5930c7d229cf9a2025d2401fc"},"schema_version":"1.0","source":{"id":"2606.10663","kind":"arxiv","version":1}},"canonical_sha256":"07ced4bdc8b42851f8e7224f9d1569e7b9169854ca02d4351f149686d1b7dd52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"07ced4bdc8b42851f8e7224f9d1569e7b9169854ca02d4351f149686d1b7dd52","first_computed_at":"2026-06-10T01:10:33.076667Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:10:33.076667Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4mz9dDf1DyNBWahAXeYC7+kssoF05d3f28vQGZih5jse0TBbW4/s4OvhlMvvqWh7pQ3Q/VBRYzeW0srF87MCAw==","signature_status":"signed_v1","signed_at":"2026-06-10T01:10:33.077556Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.10663","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd30cf216afd123dbf947b782d877e73189aa5444af446e16bd17a3a455b0ff6","sha256:d79cef44126b4eab11b7a889e28bd40b60685263d445af32831fafb4c2135280"],"state_sha256":"e4223470c0501fb87254814b670be8aac8e062ce3ed9dfdde51326482113dbbd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w9+r2UlVHGt0PAuXE2YesMUdzj0L+ENVd7l2AuiWUDQrfCGSpkyqtnHWpsHuGjlzxz+WuGd9g4b9a0QJLJ4tAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T17:29:45.654703Z","bundle_sha256":"d6287d4b89a9922a73cc2a78b41de764e7851131ed184d99ae0b61b6a38bc7d3"}}