{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:RY6Z3ZVSJRRHXEPW34LZVPNICK","short_pith_number":"pith:RY6Z3ZVS","canonical_record":{"source":{"id":"2312.09088","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2023-12-14T16:19:21Z","cross_cats_sorted":[],"title_canon_sha256":"2a5903abc666f24d560f340206b590ab11e0ff2df9631ccf8f9ed99da8c1df7e","abstract_canon_sha256":"94473b2cafed5d879e72d655522abbde7ee9e7748a93feaaba277c9357682dc5"},"schema_version":"1.0"},"canonical_sha256":"8e3d9de6b24c627b91f6df179abda812b8ae178478d3be93da9e156751f3d7ab","source":{"kind":"arxiv","id":"2312.09088","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.09088","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"arxiv_version","alias_value":"2312.09088v2","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.09088","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"pith_short_12","alias_value":"RY6Z3ZVSJRRH","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"pith_short_16","alias_value":"RY6Z3ZVSJRRHXEPW","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"pith_short_8","alias_value":"RY6Z3ZVS","created_at":"2026-07-05T08:37:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:RY6Z3ZVSJRRHXEPW34LZVPNICK","target":"record","payload":{"canonical_record":{"source":{"id":"2312.09088","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2023-12-14T16:19:21Z","cross_cats_sorted":[],"title_canon_sha256":"2a5903abc666f24d560f340206b590ab11e0ff2df9631ccf8f9ed99da8c1df7e","abstract_canon_sha256":"94473b2cafed5d879e72d655522abbde7ee9e7748a93feaaba277c9357682dc5"},"schema_version":"1.0"},"canonical_sha256":"8e3d9de6b24c627b91f6df179abda812b8ae178478d3be93da9e156751f3d7ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:37:50.561054Z","signature_b64":"Iwn7PlzZlSxEkq12ZKahHeE32jKNr3Ym5OOgaVqTyUferdY0wrSwooR91mBQqReF05sG0JAD/65k/VgykqesBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e3d9de6b24c627b91f6df179abda812b8ae178478d3be93da9e156751f3d7ab","last_reissued_at":"2026-07-05T08:37:50.560575Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:37:50.560575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.09088","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":"2026-07-05T08:37:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z8wJAeaEMCFxI/lNCBJfsPlPpld12kNNZNhrd9UFst0dtY7jckvuZKX9JHy8OUDF4xrXwaUAUi9O4HVHmbaGAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T22:04:30.343108Z"},"content_sha256":"c73a2ee219d4c8198ba4a3a20c6a47402e3a898143512887f78990993f3c7968","schema_version":"1.0","event_id":"sha256:c73a2ee219d4c8198ba4a3a20c6a47402e3a898143512887f78990993f3c7968"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:RY6Z3ZVSJRRHXEPW34LZVPNICK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Future-proof ship pipe routing: navigating the energy transition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.OC","authors_text":"Alessandro Zocca, Berend Markhorst, Jeroen Pruyn, Joost Berkhout, Rob van der Mei","submitted_at":"2023-12-14T16:19:21Z","abstract_excerpt":"The maritime industry must prepare for the energy transition from fossil fuels to sustainable alternatives. Making ships future-proof is necessary given their long lifetime, but it is also complex because the future fuel type is uncertain. Within this uncertainty, one typically overlooks pipe routing, although it is a crucial driver for design time and costs. Therefore, we propose a mathematical approach for modeling uncertainty in pipe routing with deterministic, stochastic, and robust optimization. All three models are based on state-of-the-art integer linear optimization models for the Stoc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.09088","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/2312.09088/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":"2026-07-05T08:37:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Eb1ODaMBzyR+mzI6UMDNzNyOKBKqJuIWYJEfq91bSgYkhKkbE+88lcNEMFhEotab4bEB12DjKbOT5A9fIPS/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T22:04:30.343624Z"},"content_sha256":"d1ba738c4fe16beacad4deba5ff41f99969bbdd3eab98e3ccc80b56d97a3d8a3","schema_version":"1.0","event_id":"sha256:d1ba738c4fe16beacad4deba5ff41f99969bbdd3eab98e3ccc80b56d97a3d8a3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK/bundle.json","state_url":"https://pith.science/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK/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":"2026-08-18T22:04:30Z","links":{"resolver":"https://pith.science/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK","bundle":"https://pith.science/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK/bundle.json","state":"https://pith.science/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RY6Z3ZVSJRRHXEPW34LZVPNICK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:RY6Z3ZVSJRRHXEPW34LZVPNICK","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":"94473b2cafed5d879e72d655522abbde7ee9e7748a93feaaba277c9357682dc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2023-12-14T16:19:21Z","title_canon_sha256":"2a5903abc666f24d560f340206b590ab11e0ff2df9631ccf8f9ed99da8c1df7e"},"schema_version":"1.0","source":{"id":"2312.09088","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.09088","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"arxiv_version","alias_value":"2312.09088v2","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.09088","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"pith_short_12","alias_value":"RY6Z3ZVSJRRH","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"pith_short_16","alias_value":"RY6Z3ZVSJRRHXEPW","created_at":"2026-07-05T08:37:50Z"},{"alias_kind":"pith_short_8","alias_value":"RY6Z3ZVS","created_at":"2026-07-05T08:37:50Z"}],"graph_snapshots":[{"event_id":"sha256:d1ba738c4fe16beacad4deba5ff41f99969bbdd3eab98e3ccc80b56d97a3d8a3","target":"graph","created_at":"2026-07-05T08:37:50Z","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/2312.09088/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The maritime industry must prepare for the energy transition from fossil fuels to sustainable alternatives. Making ships future-proof is necessary given their long lifetime, but it is also complex because the future fuel type is uncertain. Within this uncertainty, one typically overlooks pipe routing, although it is a crucial driver for design time and costs. Therefore, we propose a mathematical approach for modeling uncertainty in pipe routing with deterministic, stochastic, and robust optimization. All three models are based on state-of-the-art integer linear optimization models for the Stoc","authors_text":"Alessandro Zocca, Berend Markhorst, Jeroen Pruyn, Joost Berkhout, Rob van der Mei","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2023-12-14T16:19:21Z","title":"Future-proof ship pipe routing: navigating the energy transition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.09088","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:c73a2ee219d4c8198ba4a3a20c6a47402e3a898143512887f78990993f3c7968","target":"record","created_at":"2026-07-05T08:37:50Z","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":"94473b2cafed5d879e72d655522abbde7ee9e7748a93feaaba277c9357682dc5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.OC","submitted_at":"2023-12-14T16:19:21Z","title_canon_sha256":"2a5903abc666f24d560f340206b590ab11e0ff2df9631ccf8f9ed99da8c1df7e"},"schema_version":"1.0","source":{"id":"2312.09088","kind":"arxiv","version":2}},"canonical_sha256":"8e3d9de6b24c627b91f6df179abda812b8ae178478d3be93da9e156751f3d7ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e3d9de6b24c627b91f6df179abda812b8ae178478d3be93da9e156751f3d7ab","first_computed_at":"2026-07-05T08:37:50.560575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:37:50.560575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Iwn7PlzZlSxEkq12ZKahHeE32jKNr3Ym5OOgaVqTyUferdY0wrSwooR91mBQqReF05sG0JAD/65k/VgykqesBA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:37:50.561054Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.09088","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c73a2ee219d4c8198ba4a3a20c6a47402e3a898143512887f78990993f3c7968","sha256:d1ba738c4fe16beacad4deba5ff41f99969bbdd3eab98e3ccc80b56d97a3d8a3"],"state_sha256":"ba921255c7c9b24b836b98f5287749d03153702b91c8f77d23d409c511d2d978"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8nTo8Cn1ikrRXSvMxxAA+E+N/08Nb3zJaBGcyybkDJeL6/96YfY6h8qGGZuSNWC1pDrpnbjy2+n0zqExoQS6Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T22:04:30.348451Z","bundle_sha256":"712bd16b923c61306bb213d46a0e512a9be7104120f963cf99654df01d2bd9f1"}}