{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:3K6UGAXU5UVSTKARCBRVEGD3GV","short_pith_number":"pith:3K6UGAXU","canonical_record":{"source":{"id":"2606.21523","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2026-06-19T15:21:10Z","cross_cats_sorted":[],"title_canon_sha256":"e72dcb2eb82096247c36e3c79fd7ffe796472c9cccb9e93073707d1d6b3c1457","abstract_canon_sha256":"b7ec3b3f03b42cb7ce387b692cb450d57d660abc3a8c9d77c3128cf37d02dffa"},"schema_version":"1.0"},"canonical_sha256":"dabd4302f4ed2b29a811106352187b3546ae451b1f20f3f138fd38fb0557214e","source":{"kind":"arxiv","id":"2606.21523","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.21523","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"arxiv_version","alias_value":"2606.21523v1","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.21523","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"pith_short_12","alias_value":"3K6UGAXU5UVS","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"pith_short_16","alias_value":"3K6UGAXU5UVSTKAR","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"pith_short_8","alias_value":"3K6UGAXU","created_at":"2026-06-23T01:13:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:3K6UGAXU5UVSTKARCBRVEGD3GV","target":"record","payload":{"canonical_record":{"source":{"id":"2606.21523","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2026-06-19T15:21:10Z","cross_cats_sorted":[],"title_canon_sha256":"e72dcb2eb82096247c36e3c79fd7ffe796472c9cccb9e93073707d1d6b3c1457","abstract_canon_sha256":"b7ec3b3f03b42cb7ce387b692cb450d57d660abc3a8c9d77c3128cf37d02dffa"},"schema_version":"1.0"},"canonical_sha256":"dabd4302f4ed2b29a811106352187b3546ae451b1f20f3f138fd38fb0557214e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T01:13:13.419772Z","signature_b64":"6jVswwk3z/u2OkhhpPufp4WNbqu+BoEZtzxF/hrRvs3pPdlqXFZkjfyBHzGau3zQ0g995jIOTJcJwFGncxG2DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dabd4302f4ed2b29a811106352187b3546ae451b1f20f3f138fd38fb0557214e","last_reissued_at":"2026-06-23T01:13:13.419275Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T01:13:13.419275Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.21523","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":"2026-06-23T01:13:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GXUzkX2yHekt2lioayeSdqU0vw9YSEQVJ8lCHNeqWghVAnhjFNDa3ViH+EskTZnnnxQLCqAlPX47ZSfK5ykNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:07:33.013534Z"},"content_sha256":"ce81c05b3df5303431ccac06669096fbc268039bc56a6da263ccceb67a40e573","schema_version":"1.0","event_id":"sha256:ce81c05b3df5303431ccac06669096fbc268039bc56a6da263ccceb67a40e573"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:3K6UGAXU5UVSTKARCBRVEGD3GV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accelerating Simulation and Optimisation of Cyclic Adsorption Processes with Differentiable Programming","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CE","authors_text":"Alex Glover, Maria M. Papathanasiou, Ronny Pini","submitted_at":"2026-06-19T15:21:10Z","abstract_excerpt":"The design of cyclic adsorption processes is computationally demanding, requiring repeated convergence to cyclic steady state within an iterative optimisation loop. Conventional workflows treat the process simulator as a black box and rely on derivative-free optimisation, resulting in design campaigns that can require hundreds to thousands of CPU hours. This work presents an end-to-end differentiable model of a pressure vacuum swing adsorption process, developed using the JAX differentiable programming framework and applied here to a benchmark post-combustion carbon capture problem. Automatic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.21523","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/2606.21523/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":"2026-06-23T01:13:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9xbilYl3jJ8+vhbGCvx5FN7osNgMCMITzNc7UI2+v6uwSKna5D2kGkhc4MUrA0Y2OqOVZ4aWs5LINfjtIXgsAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:07:33.013901Z"},"content_sha256":"f5215bf5587c6e0314a2487a386801f09e2fbbe716ad10a4597db7fa88e14f66","schema_version":"1.0","event_id":"sha256:f5215bf5587c6e0314a2487a386801f09e2fbbe716ad10a4597db7fa88e14f66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3K6UGAXU5UVSTKARCBRVEGD3GV/bundle.json","state_url":"https://pith.science/pith/3K6UGAXU5UVSTKARCBRVEGD3GV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3K6UGAXU5UVSTKARCBRVEGD3GV/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":"2026-06-28T03:07:33Z","links":{"resolver":"https://pith.science/pith/3K6UGAXU5UVSTKARCBRVEGD3GV","bundle":"https://pith.science/pith/3K6UGAXU5UVSTKARCBRVEGD3GV/bundle.json","state":"https://pith.science/pith/3K6UGAXU5UVSTKARCBRVEGD3GV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3K6UGAXU5UVSTKARCBRVEGD3GV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:3K6UGAXU5UVSTKARCBRVEGD3GV","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":"b7ec3b3f03b42cb7ce387b692cb450d57d660abc3a8c9d77c3128cf37d02dffa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2026-06-19T15:21:10Z","title_canon_sha256":"e72dcb2eb82096247c36e3c79fd7ffe796472c9cccb9e93073707d1d6b3c1457"},"schema_version":"1.0","source":{"id":"2606.21523","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.21523","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"arxiv_version","alias_value":"2606.21523v1","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.21523","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"pith_short_12","alias_value":"3K6UGAXU5UVS","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"pith_short_16","alias_value":"3K6UGAXU5UVSTKAR","created_at":"2026-06-23T01:13:13Z"},{"alias_kind":"pith_short_8","alias_value":"3K6UGAXU","created_at":"2026-06-23T01:13:13Z"}],"graph_snapshots":[{"event_id":"sha256:f5215bf5587c6e0314a2487a386801f09e2fbbe716ad10a4597db7fa88e14f66","target":"graph","created_at":"2026-06-23T01:13:13Z","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/2606.21523/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The design of cyclic adsorption processes is computationally demanding, requiring repeated convergence to cyclic steady state within an iterative optimisation loop. Conventional workflows treat the process simulator as a black box and rely on derivative-free optimisation, resulting in design campaigns that can require hundreds to thousands of CPU hours. This work presents an end-to-end differentiable model of a pressure vacuum swing adsorption process, developed using the JAX differentiable programming framework and applied here to a benchmark post-combustion carbon capture problem. Automatic ","authors_text":"Alex Glover, Maria M. Papathanasiou, Ronny Pini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2026-06-19T15:21:10Z","title":"Accelerating Simulation and Optimisation of Cyclic Adsorption Processes with Differentiable Programming"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.21523","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:ce81c05b3df5303431ccac06669096fbc268039bc56a6da263ccceb67a40e573","target":"record","created_at":"2026-06-23T01:13:13Z","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":"b7ec3b3f03b42cb7ce387b692cb450d57d660abc3a8c9d77c3128cf37d02dffa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CE","submitted_at":"2026-06-19T15:21:10Z","title_canon_sha256":"e72dcb2eb82096247c36e3c79fd7ffe796472c9cccb9e93073707d1d6b3c1457"},"schema_version":"1.0","source":{"id":"2606.21523","kind":"arxiv","version":1}},"canonical_sha256":"dabd4302f4ed2b29a811106352187b3546ae451b1f20f3f138fd38fb0557214e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dabd4302f4ed2b29a811106352187b3546ae451b1f20f3f138fd38fb0557214e","first_computed_at":"2026-06-23T01:13:13.419275Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T01:13:13.419275Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6jVswwk3z/u2OkhhpPufp4WNbqu+BoEZtzxF/hrRvs3pPdlqXFZkjfyBHzGau3zQ0g995jIOTJcJwFGncxG2DA==","signature_status":"signed_v1","signed_at":"2026-06-23T01:13:13.419772Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.21523","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ce81c05b3df5303431ccac06669096fbc268039bc56a6da263ccceb67a40e573","sha256:f5215bf5587c6e0314a2487a386801f09e2fbbe716ad10a4597db7fa88e14f66"],"state_sha256":"211a3977756728ad42025d7e72b62488163447be8d0805fe3accf7430a2835c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BnUF5D/CoyN+dmHJDxebIJV+xe8vZqV5eiDAe/XYVR8b/si5+4lr7YGGlVrdjctsXA0p0UGL0f2rBhjZRGn7Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T03:07:33.015790Z","bundle_sha256":"3c9c89dde1cb6d1af9ec28fdb7b8380bcaf2c49e359c3af8e0efb8ab3a2ced18"}}