{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:Q56PZNW746PX7MLDJMD7VXMPMI","short_pith_number":"pith:Q56PZNW7","canonical_record":{"source":{"id":"2507.09337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2025-07-12T16:35:32Z","cross_cats_sorted":["cs.NA"],"title_canon_sha256":"e022ab8d948063344fa5898b1f41a611f2a3173f0a4d9e9e657c8977a8bb6f6b","abstract_canon_sha256":"75ffe2b262937ee1417bab89eef9178f887f99f7c752ced4ec07ea2463a45005"},"schema_version":"1.0"},"canonical_sha256":"877cfcb6dfe79f7fb1634b07fadd8f6207b719b38d81b5bd9a3c071d40c48fd0","source":{"kind":"arxiv","id":"2507.09337","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.09337","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"arxiv_version","alias_value":"2507.09337v1","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.09337","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"pith_short_12","alias_value":"Q56PZNW746PX","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"pith_short_16","alias_value":"Q56PZNW746PX7MLD","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"pith_short_8","alias_value":"Q56PZNW7","created_at":"2026-07-05T11:36:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:Q56PZNW746PX7MLDJMD7VXMPMI","target":"record","payload":{"canonical_record":{"source":{"id":"2507.09337","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2025-07-12T16:35:32Z","cross_cats_sorted":["cs.NA"],"title_canon_sha256":"e022ab8d948063344fa5898b1f41a611f2a3173f0a4d9e9e657c8977a8bb6f6b","abstract_canon_sha256":"75ffe2b262937ee1417bab89eef9178f887f99f7c752ced4ec07ea2463a45005"},"schema_version":"1.0"},"canonical_sha256":"877cfcb6dfe79f7fb1634b07fadd8f6207b719b38d81b5bd9a3c071d40c48fd0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:36:07.421821Z","signature_b64":"Qc9PD9mFHwKXQEC1W713RErPZXIOSaz9sEqPqgFsrHow1pRItuuORfGBNNImB8txu6IZvcpuJONDBSB9UKbpDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"877cfcb6dfe79f7fb1634b07fadd8f6207b719b38d81b5bd9a3c071d40c48fd0","last_reissued_at":"2026-07-05T11:36:07.421397Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:36:07.421397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.09337","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":"2026-07-05T11:36:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xk7BezqQm+P8U/61lf3Ic7SVex9v4DJMmbbt041zmTT14o+N8Bszs4feSf/ollErz3oCPgMalizvT4Za8pV1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:36:59.668066Z"},"content_sha256":"6c55d648336b5739350920cdd48c8ff1f93317cd36d0c304ac6aa0833b29623c","schema_version":"1.0","event_id":"sha256:6c55d648336b5739350920cdd48c8ff1f93317cd36d0c304ac6aa0833b29623c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:Q56PZNW746PX7MLDJMD7VXMPMI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ORCHA -- A Performance Portability System for Post-Exascale Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NA"],"primary_cat":"math.NA","authors_text":"Anshu Dubey, Jared O'Neal, Johann Rudi, Klaus Weide, Wesley Kwiecinski, Youngjun Lee","submitted_at":"2025-07-12T16:35:32Z","abstract_excerpt":"Heterogeneity is the prevalent trend in the rapidly evolving high-performance computing (HPC) landscape in both hardware and application software. The diversity in hardware platforms, currently comprising various accelerators and a future possibility of specializable chiplets, poses a significant challenge for scientific software developers aiming to harness optimal performance across different computing platforms while maintaining the quality of solutions when their applications are simultaneously growing more complex. Code synthesis and code generation can provide mechanisms to mitigate this"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.09337","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/2507.09337/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":"2026-07-05T11:36:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cQkuwVw2I696W4bMaDLgWKEHngmNLtyr3nD6HLFmvp562tbYQuNN3dru2gQhPlD1YjmAMISrEPf/6KuQMjYHBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:36:59.668451Z"},"content_sha256":"7ca057091229494c63017ace5231179c0872b7f727617b9d89ce835fd313e66e","schema_version":"1.0","event_id":"sha256:7ca057091229494c63017ace5231179c0872b7f727617b9d89ce835fd313e66e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q56PZNW746PX7MLDJMD7VXMPMI/bundle.json","state_url":"https://pith.science/pith/Q56PZNW746PX7MLDJMD7VXMPMI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q56PZNW746PX7MLDJMD7VXMPMI/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":"2026-07-07T08:36:59Z","links":{"resolver":"https://pith.science/pith/Q56PZNW746PX7MLDJMD7VXMPMI","bundle":"https://pith.science/pith/Q56PZNW746PX7MLDJMD7VXMPMI/bundle.json","state":"https://pith.science/pith/Q56PZNW746PX7MLDJMD7VXMPMI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q56PZNW746PX7MLDJMD7VXMPMI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:Q56PZNW746PX7MLDJMD7VXMPMI","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":"75ffe2b262937ee1417bab89eef9178f887f99f7c752ced4ec07ea2463a45005","cross_cats_sorted":["cs.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2025-07-12T16:35:32Z","title_canon_sha256":"e022ab8d948063344fa5898b1f41a611f2a3173f0a4d9e9e657c8977a8bb6f6b"},"schema_version":"1.0","source":{"id":"2507.09337","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.09337","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"arxiv_version","alias_value":"2507.09337v1","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.09337","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"pith_short_12","alias_value":"Q56PZNW746PX","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"pith_short_16","alias_value":"Q56PZNW746PX7MLD","created_at":"2026-07-05T11:36:07Z"},{"alias_kind":"pith_short_8","alias_value":"Q56PZNW7","created_at":"2026-07-05T11:36:07Z"}],"graph_snapshots":[{"event_id":"sha256:7ca057091229494c63017ace5231179c0872b7f727617b9d89ce835fd313e66e","target":"graph","created_at":"2026-07-05T11:36:07Z","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/2507.09337/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Heterogeneity is the prevalent trend in the rapidly evolving high-performance computing (HPC) landscape in both hardware and application software. The diversity in hardware platforms, currently comprising various accelerators and a future possibility of specializable chiplets, poses a significant challenge for scientific software developers aiming to harness optimal performance across different computing platforms while maintaining the quality of solutions when their applications are simultaneously growing more complex. Code synthesis and code generation can provide mechanisms to mitigate this","authors_text":"Anshu Dubey, Jared O'Neal, Johann Rudi, Klaus Weide, Wesley Kwiecinski, Youngjun Lee","cross_cats":["cs.NA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2025-07-12T16:35:32Z","title":"ORCHA -- A Performance Portability System for Post-Exascale Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.09337","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":"sha256:6c55d648336b5739350920cdd48c8ff1f93317cd36d0c304ac6aa0833b29623c","target":"record","created_at":"2026-07-05T11:36:07Z","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":"75ffe2b262937ee1417bab89eef9178f887f99f7c752ced4ec07ea2463a45005","cross_cats_sorted":["cs.NA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.NA","submitted_at":"2025-07-12T16:35:32Z","title_canon_sha256":"e022ab8d948063344fa5898b1f41a611f2a3173f0a4d9e9e657c8977a8bb6f6b"},"schema_version":"1.0","source":{"id":"2507.09337","kind":"arxiv","version":1}},"canonical_sha256":"877cfcb6dfe79f7fb1634b07fadd8f6207b719b38d81b5bd9a3c071d40c48fd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"877cfcb6dfe79f7fb1634b07fadd8f6207b719b38d81b5bd9a3c071d40c48fd0","first_computed_at":"2026-07-05T11:36:07.421397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:36:07.421397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qc9PD9mFHwKXQEC1W713RErPZXIOSaz9sEqPqgFsrHow1pRItuuORfGBNNImB8txu6IZvcpuJONDBSB9UKbpDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:36:07.421821Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.09337","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6c55d648336b5739350920cdd48c8ff1f93317cd36d0c304ac6aa0833b29623c","sha256:7ca057091229494c63017ace5231179c0872b7f727617b9d89ce835fd313e66e"],"state_sha256":"d9eb4406b48724b0e9bbf80060c44a110f949a9ee5ffa85b4bea19587b438d56"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7SD7gXV6MFdTqNlF7x0LMFeR0UrEOq9U5x0wW5qgZaoa4z2Y4+kYUcBYzJ2kbPS3f5IhtHZUKj70MOoPvnivAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:36:59.670355Z","bundle_sha256":"e6d62f1219a4f7130e8c889b0ba19d4d765cc5ce60483561aaabcce310c40fcd"}}