{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:AQ7EUIHONBGRFNYK3ISU7BRYUX","short_pith_number":"pith:AQ7EUIHO","canonical_record":{"source":{"id":"2506.09057","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2025-06-04T08:37:21Z","cross_cats_sorted":[],"title_canon_sha256":"4c6ff35f27486a9d37f9bd3f0a6b497530779bbd4a16f929b1700db5bfa10566","abstract_canon_sha256":"57782d109ded35dc1f5a4047f4491b029042b76abab2454d57a5d0cbe438bfb6"},"schema_version":"1.0"},"canonical_sha256":"043e4a20ee684d12b70ada254f8638a5c3c8d51cd34f898d0c03c9f9ad3abe7d","source":{"kind":"arxiv","id":"2506.09057","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.09057","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"2506.09057v1","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.09057","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"AQ7EUIHONBGR","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"pith_short_16","alias_value":"AQ7EUIHONBGRFNYK","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"pith_short_8","alias_value":"AQ7EUIHO","created_at":"2026-07-05T11:19:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:AQ7EUIHONBGRFNYK3ISU7BRYUX","target":"record","payload":{"canonical_record":{"source":{"id":"2506.09057","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2025-06-04T08:37:21Z","cross_cats_sorted":[],"title_canon_sha256":"4c6ff35f27486a9d37f9bd3f0a6b497530779bbd4a16f929b1700db5bfa10566","abstract_canon_sha256":"57782d109ded35dc1f5a4047f4491b029042b76abab2454d57a5d0cbe438bfb6"},"schema_version":"1.0"},"canonical_sha256":"043e4a20ee684d12b70ada254f8638a5c3c8d51cd34f898d0c03c9f9ad3abe7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:19:30.609916Z","signature_b64":"nNo7LmKjcpcvXAhKcCQcrgihZNsr9jasac6FmcDmvzwfedNkD0hkbnwvJV2kdSePUHHkRvLo6JLimzK0yW9HCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"043e4a20ee684d12b70ada254f8638a5c3c8d51cd34f898d0c03c9f9ad3abe7d","last_reissued_at":"2026-07-05T11:19:30.609299Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:19:30.609299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.09057","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":"2026-07-05T11:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/hjQKT5zHCbGpFmWe3g2SzF1kSbkYTmdZay9AGAHuwHvxWdoC3fj3qEGa6SU8+/NOpi5HNb2XkN2dnAcFgrwAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T12:42:27.486906Z"},"content_sha256":"0e6fa6b5860a48ff985f1f5c2c52e749e59dbaf25d242da30c5c44b73d5c6353","schema_version":"1.0","event_id":"sha256:0e6fa6b5860a48ff985f1f5c2c52e749e59dbaf25d242da30c5c44b73d5c6353"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:AQ7EUIHONBGRFNYK3ISU7BRYUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Design, development and commissioning of a new towing tank at the University of Southampton: A decade of endeavour","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"B Malas (LHEEA)","submitted_at":"2025-06-04T08:37:21Z","abstract_excerpt":"The University of Southampton in the United Kingdom is worldly renowned in the naval architecture domain. For several decades, the researchers in hydrodynamics have been discussing the need of a middle-sized towing tank to accommodate the teaching, research and commercial experiments that previously had to be outsourced. In the early 2010s, the renovation of the Boldrewood campus was decided and opened the way for the construction of this 138 m long, 6 m wide and 3.5 m deep facility. Commissioned in 2022, the tank is equipped with a 12 independent paddles wavemaker and an innovative carriage c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.09057","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/2506.09057/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":"2026-07-05T11:19:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qiA0F53RbA/SDAzKouXNuondtY+i6pJh+I4E1LpIqD28oIBfaGGo61/Y1zn5gTg53CtVjfj21xTpb6swhAyRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T12:42:27.487502Z"},"content_sha256":"b15a726b7d3ff2920efaa6e67393559c1a909ed25bd4e77db82f695f30ed2231","schema_version":"1.0","event_id":"sha256:b15a726b7d3ff2920efaa6e67393559c1a909ed25bd4e77db82f695f30ed2231"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX/bundle.json","state_url":"https://pith.science/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX/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":"2026-08-10T12:42:27Z","links":{"resolver":"https://pith.science/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX","bundle":"https://pith.science/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX/bundle.json","state":"https://pith.science/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AQ7EUIHONBGRFNYK3ISU7BRYUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:AQ7EUIHONBGRFNYK3ISU7BRYUX","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":"57782d109ded35dc1f5a4047f4491b029042b76abab2454d57a5d0cbe438bfb6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2025-06-04T08:37:21Z","title_canon_sha256":"4c6ff35f27486a9d37f9bd3f0a6b497530779bbd4a16f929b1700db5bfa10566"},"schema_version":"1.0","source":{"id":"2506.09057","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.09057","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"arxiv_version","alias_value":"2506.09057v1","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.09057","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"pith_short_12","alias_value":"AQ7EUIHONBGR","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"pith_short_16","alias_value":"AQ7EUIHONBGRFNYK","created_at":"2026-07-05T11:19:30Z"},{"alias_kind":"pith_short_8","alias_value":"AQ7EUIHO","created_at":"2026-07-05T11:19:30Z"}],"graph_snapshots":[{"event_id":"sha256:b15a726b7d3ff2920efaa6e67393559c1a909ed25bd4e77db82f695f30ed2231","target":"graph","created_at":"2026-07-05T11:19:30Z","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/2506.09057/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The University of Southampton in the United Kingdom is worldly renowned in the naval architecture domain. For several decades, the researchers in hydrodynamics have been discussing the need of a middle-sized towing tank to accommodate the teaching, research and commercial experiments that previously had to be outsourced. In the early 2010s, the renovation of the Boldrewood campus was decided and opened the way for the construction of this 138 m long, 6 m wide and 3.5 m deep facility. Commissioned in 2022, the tank is equipped with a 12 independent paddles wavemaker and an innovative carriage c","authors_text":"B Malas (LHEEA)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2025-06-04T08:37:21Z","title":"Design, development and commissioning of a new towing tank at the University of Southampton: A decade of endeavour"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.09057","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":"sha256:0e6fa6b5860a48ff985f1f5c2c52e749e59dbaf25d242da30c5c44b73d5c6353","target":"record","created_at":"2026-07-05T11:19:30Z","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":"57782d109ded35dc1f5a4047f4491b029042b76abab2454d57a5d0cbe438bfb6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2025-06-04T08:37:21Z","title_canon_sha256":"4c6ff35f27486a9d37f9bd3f0a6b497530779bbd4a16f929b1700db5bfa10566"},"schema_version":"1.0","source":{"id":"2506.09057","kind":"arxiv","version":1}},"canonical_sha256":"043e4a20ee684d12b70ada254f8638a5c3c8d51cd34f898d0c03c9f9ad3abe7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"043e4a20ee684d12b70ada254f8638a5c3c8d51cd34f898d0c03c9f9ad3abe7d","first_computed_at":"2026-07-05T11:19:30.609299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:19:30.609299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nNo7LmKjcpcvXAhKcCQcrgihZNsr9jasac6FmcDmvzwfedNkD0hkbnwvJV2kdSePUHHkRvLo6JLimzK0yW9HCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:19:30.609916Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.09057","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e6fa6b5860a48ff985f1f5c2c52e749e59dbaf25d242da30c5c44b73d5c6353","sha256:b15a726b7d3ff2920efaa6e67393559c1a909ed25bd4e77db82f695f30ed2231"],"state_sha256":"5162f07c492f36504f15f225e26ba246a3764fbdd16f5a6d96891596585d8924"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kvzhpYn4gi1nQ7OgUcqNXjpI+o3Svocq4AWkqM8Ni9AP8qBIKpv/GPIbG89qw0QpQWtbHExhAMJr03Yx7888AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T12:42:27.492609Z","bundle_sha256":"c778cca06cda6714a810c1842088368abfe765a827e592ec0b85bf3649ac9d02"}}