{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZZTZUJANGSBJDP3VHHQTIWD4PG","short_pith_number":"pith:ZZTZUJAN","canonical_record":{"source":{"id":"1908.10439","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-08-27T19:56:52Z","cross_cats_sorted":["hep-ph","nucl-th","quant-ph"],"title_canon_sha256":"a256500efaa736fe5fdbd2106e2a90c22f7cd91958cfc3b98c73771143510485","abstract_canon_sha256":"afd116387bb3f120dfee7287d64a188e6cbefaaf4e617da9b5cd83684ddb6e0e"},"schema_version":"1.0"},"canonical_sha256":"ce679a240d348291bf7539e134587c79baae3a32555b593a1646398436427c28","source":{"kind":"arxiv","id":"1908.10439","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.10439","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"arxiv_version","alias_value":"1908.10439v2","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.10439","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZZTZUJANGSBJ","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"pith_short_16","alias_value":"ZZTZUJANGSBJDP3V","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"pith_short_8","alias_value":"ZZTZUJAN","created_at":"2026-07-05T00:48:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZZTZUJANGSBJDP3VHHQTIWD4PG","target":"record","payload":{"canonical_record":{"source":{"id":"1908.10439","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-08-27T19:56:52Z","cross_cats_sorted":["hep-ph","nucl-th","quant-ph"],"title_canon_sha256":"a256500efaa736fe5fdbd2106e2a90c22f7cd91958cfc3b98c73771143510485","abstract_canon_sha256":"afd116387bb3f120dfee7287d64a188e6cbefaaf4e617da9b5cd83684ddb6e0e"},"schema_version":"1.0"},"canonical_sha256":"ce679a240d348291bf7539e134587c79baae3a32555b593a1646398436427c28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:48:43.108953Z","signature_b64":"NO3+GvDi1fJNiJ2rQRtccOc5i4UHYEd6ErLWxK/N+kqicR6kic/zmjtsLrP1AXMV1StEzlqIXLctDNH9DA9rCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce679a240d348291bf7539e134587c79baae3a32555b593a1646398436427c28","last_reissued_at":"2026-07-05T00:48:43.108484Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:48:43.108484Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.10439","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":"2026-07-05T00:48:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FZLHgv4ra1TX6SjxtVSs3/NGOexCQmNS1ifS1Gr+APya/c9tA9iwKcJHr8ZE8ycWF0w2TRGuq7/m+TcagUrVCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:19:01.791722Z"},"content_sha256":"ee9ef093e0a8a9820e6cf29d8eda7ddcf335cc5c73b91f6264415e29ef065df7","schema_version":"1.0","event_id":"sha256:ee9ef093e0a8a9820e6cf29d8eda7ddcf335cc5c73b91f6264415e29ef065df7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZZTZUJANGSBJDP3VHHQTIWD4PG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Parton Physics on a Quantum Computer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-th","quant-ph"],"primary_cat":"hep-lat","authors_text":"Henry Lamm, Scott Lawrence, Yukari Yamauchi (for the NuQS Collaboration)","submitted_at":"2019-08-27T19:56:52Z","abstract_excerpt":"Parton distribution functions and hadronic tensors may be computed on a universal quantum computer without many of the complexities that apply to Euclidean lattice calculations. We detail algorithms for computing parton distribution functions and the hadronic tensor in the Thirring model. Their generalization to QCD is discussed, with the conclusion that the parton distribution function is best obtained by fitting the hadronic tensor, rather than direct calculation. As a side effect of this method, we find that lepton-hadron cross sections may be computed relatively cheaply. Finally, we estima"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.10439","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/1908.10439/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":"2026-07-05T00:48:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lgGF2oEJhLKn07/vMf0cqwsN5l7BPwpfdQnLXzbMJEX/BGSE7M2wa5YAZ8hPMPZzwtz1yFweXIO9mmi3q3jvCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T20:19:01.792258Z"},"content_sha256":"17cb56bbd3e163abfc090d4ba0ffbf8d0048afa639fc6d3350e839a2495b376f","schema_version":"1.0","event_id":"sha256:17cb56bbd3e163abfc090d4ba0ffbf8d0048afa639fc6d3350e839a2495b376f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG/bundle.json","state_url":"https://pith.science/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG/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":"2026-08-03T20:19:01Z","links":{"resolver":"https://pith.science/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG","bundle":"https://pith.science/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG/bundle.json","state":"https://pith.science/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZZTZUJANGSBJDP3VHHQTIWD4PG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZZTZUJANGSBJDP3VHHQTIWD4PG","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":"afd116387bb3f120dfee7287d64a188e6cbefaaf4e617da9b5cd83684ddb6e0e","cross_cats_sorted":["hep-ph","nucl-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-08-27T19:56:52Z","title_canon_sha256":"a256500efaa736fe5fdbd2106e2a90c22f7cd91958cfc3b98c73771143510485"},"schema_version":"1.0","source":{"id":"1908.10439","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.10439","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"arxiv_version","alias_value":"1908.10439v2","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.10439","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"pith_short_12","alias_value":"ZZTZUJANGSBJ","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"pith_short_16","alias_value":"ZZTZUJANGSBJDP3V","created_at":"2026-07-05T00:48:43Z"},{"alias_kind":"pith_short_8","alias_value":"ZZTZUJAN","created_at":"2026-07-05T00:48:43Z"}],"graph_snapshots":[{"event_id":"sha256:17cb56bbd3e163abfc090d4ba0ffbf8d0048afa639fc6d3350e839a2495b376f","target":"graph","created_at":"2026-07-05T00:48:43Z","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/1908.10439/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Parton distribution functions and hadronic tensors may be computed on a universal quantum computer without many of the complexities that apply to Euclidean lattice calculations. We detail algorithms for computing parton distribution functions and the hadronic tensor in the Thirring model. Their generalization to QCD is discussed, with the conclusion that the parton distribution function is best obtained by fitting the hadronic tensor, rather than direct calculation. As a side effect of this method, we find that lepton-hadron cross sections may be computed relatively cheaply. Finally, we estima","authors_text":"Henry Lamm, Scott Lawrence, Yukari Yamauchi (for the NuQS Collaboration)","cross_cats":["hep-ph","nucl-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-08-27T19:56:52Z","title":"Parton Physics on a Quantum Computer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.10439","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:ee9ef093e0a8a9820e6cf29d8eda7ddcf335cc5c73b91f6264415e29ef065df7","target":"record","created_at":"2026-07-05T00:48:43Z","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":"afd116387bb3f120dfee7287d64a188e6cbefaaf4e617da9b5cd83684ddb6e0e","cross_cats_sorted":["hep-ph","nucl-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2019-08-27T19:56:52Z","title_canon_sha256":"a256500efaa736fe5fdbd2106e2a90c22f7cd91958cfc3b98c73771143510485"},"schema_version":"1.0","source":{"id":"1908.10439","kind":"arxiv","version":2}},"canonical_sha256":"ce679a240d348291bf7539e134587c79baae3a32555b593a1646398436427c28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce679a240d348291bf7539e134587c79baae3a32555b593a1646398436427c28","first_computed_at":"2026-07-05T00:48:43.108484Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:48:43.108484Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NO3+GvDi1fJNiJ2rQRtccOc5i4UHYEd6ErLWxK/N+kqicR6kic/zmjtsLrP1AXMV1StEzlqIXLctDNH9DA9rCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:48:43.108953Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.10439","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee9ef093e0a8a9820e6cf29d8eda7ddcf335cc5c73b91f6264415e29ef065df7","sha256:17cb56bbd3e163abfc090d4ba0ffbf8d0048afa639fc6d3350e839a2495b376f"],"state_sha256":"85f09be6faea2f505f07a4dee2dd412c09f18ea4ce7b1d5105202c5bdf3ce51a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rIiDmuUcY6q80YfAZiMeEWa4MmqdMYU2NNZ8KZlC3NqgXHr38A+abgcrlcmpvTE+JYxOEG8C6GE4uKDhsmVoAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T20:19:01.798506Z","bundle_sha256":"6dd764b127f18d7f1770624a770058597aaa60153b66b8a9f9c2239714ebcd2a"}}