{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:G3WAEXMRPSTSL46XGJ53O23CDI","short_pith_number":"pith:G3WAEXMR","canonical_record":{"source":{"id":"2003.00702","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-03-02T07:57:19Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"38cd8859d9e752953ab277af18fe47b8794cedec668fe86246e09ff79662984b","abstract_canon_sha256":"52df228d875918576165961c7871b51325d39f14b30e0597cf6409a5e047d951"},"schema_version":"1.0"},"canonical_sha256":"36ec025d917ca725f3d7327bb76b621a186497abce30000a8d67060c5e7bc125","source":{"kind":"arxiv","id":"2003.00702","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.00702","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"arxiv_version","alias_value":"2003.00702v2","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.00702","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"pith_short_12","alias_value":"G3WAEXMRPSTS","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"G3WAEXMRPSTSL46X","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"G3WAEXMR","created_at":"2026-07-05T01:29:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:G3WAEXMRPSTSL46XGJ53O23CDI","target":"record","payload":{"canonical_record":{"source":{"id":"2003.00702","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-03-02T07:57:19Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"38cd8859d9e752953ab277af18fe47b8794cedec668fe86246e09ff79662984b","abstract_canon_sha256":"52df228d875918576165961c7871b51325d39f14b30e0597cf6409a5e047d951"},"schema_version":"1.0"},"canonical_sha256":"36ec025d917ca725f3d7327bb76b621a186497abce30000a8d67060c5e7bc125","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:29:55.237825Z","signature_b64":"hocIP2TH/pQnCN+fNnycULot3czlnDoe/aN7FSrVzhq5ZFwsHGyLCsYZHK5JsZjJiVfbNFfL2blJByMZqKgCAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"36ec025d917ca725f3d7327bb76b621a186497abce30000a8d67060c5e7bc125","last_reissued_at":"2026-07-05T01:29:55.237387Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:29:55.237387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.00702","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":"2026-07-05T01:29:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"blNtYOxJwlG0+BIOoWeqPD8cGEwcMDBaFHW/I33i81ETf05b5dZHgCBE/hVquY77FE+NtEhID/2JacIi5sRpAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:39:07.241102Z"},"content_sha256":"683b5d076999291dd4dc934a09c0f58a638bad1ae94cedfc15990b8c3ada048f","schema_version":"1.0","event_id":"sha256:683b5d076999291dd4dc934a09c0f58a638bad1ae94cedfc15990b8c3ada048f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:G3WAEXMRPSTSL46XGJ53O23CDI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sector Showers for Hadron Collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Christian T Preuss, Helen Brooks, Peter Skands","submitted_at":"2020-03-02T07:57:19Z","abstract_excerpt":"In conventional parton showers (including ones based on dipoles/antennae), a given $(\\mathrm{Born}+m)$-parton configuration can typically be reached via ${\\mathcal O}(m!)$ different \"shower histories\". In the context of matrix-element-correction and merging procedures, accounting for these histories mandates fairly complex and resource-intensive algorithms. A so far little-explored alternative in the shower context is to divide the branching phase spaces into distinct \"sectors\", each of which only receives contributions from a single branching kernel. This has a number of consequences includin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00702","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/2003.00702/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":"2026-07-05T01:29:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XCe/aZqd6S5v4cOVX9tNMj4nK9z86d5j616QhvKYjLRmqz30cz7rUnaFpUtYjaKAIiA5vftywzMAbWGgjkT1Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:39:07.241653Z"},"content_sha256":"d1a995ec0b7ae0f4e9be6c71d23140a847654b42392bd29252ab0ef805019288","schema_version":"1.0","event_id":"sha256:d1a995ec0b7ae0f4e9be6c71d23140a847654b42392bd29252ab0ef805019288"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G3WAEXMRPSTSL46XGJ53O23CDI/bundle.json","state_url":"https://pith.science/pith/G3WAEXMRPSTSL46XGJ53O23CDI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G3WAEXMRPSTSL46XGJ53O23CDI/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":"2026-08-04T20:39:07Z","links":{"resolver":"https://pith.science/pith/G3WAEXMRPSTSL46XGJ53O23CDI","bundle":"https://pith.science/pith/G3WAEXMRPSTSL46XGJ53O23CDI/bundle.json","state":"https://pith.science/pith/G3WAEXMRPSTSL46XGJ53O23CDI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G3WAEXMRPSTSL46XGJ53O23CDI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:G3WAEXMRPSTSL46XGJ53O23CDI","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":"52df228d875918576165961c7871b51325d39f14b30e0597cf6409a5e047d951","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-03-02T07:57:19Z","title_canon_sha256":"38cd8859d9e752953ab277af18fe47b8794cedec668fe86246e09ff79662984b"},"schema_version":"1.0","source":{"id":"2003.00702","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.00702","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"arxiv_version","alias_value":"2003.00702v2","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.00702","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"pith_short_12","alias_value":"G3WAEXMRPSTS","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"G3WAEXMRPSTSL46X","created_at":"2026-07-05T01:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"G3WAEXMR","created_at":"2026-07-05T01:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:d1a995ec0b7ae0f4e9be6c71d23140a847654b42392bd29252ab0ef805019288","target":"graph","created_at":"2026-07-05T01:29:55Z","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/2003.00702/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In conventional parton showers (including ones based on dipoles/antennae), a given $(\\mathrm{Born}+m)$-parton configuration can typically be reached via ${\\mathcal O}(m!)$ different \"shower histories\". In the context of matrix-element-correction and merging procedures, accounting for these histories mandates fairly complex and resource-intensive algorithms. A so far little-explored alternative in the shower context is to divide the branching phase spaces into distinct \"sectors\", each of which only receives contributions from a single branching kernel. This has a number of consequences includin","authors_text":"Christian T Preuss, Helen Brooks, Peter Skands","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-03-02T07:57:19Z","title":"Sector Showers for Hadron Collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00702","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":"sha256:683b5d076999291dd4dc934a09c0f58a638bad1ae94cedfc15990b8c3ada048f","target":"record","created_at":"2026-07-05T01:29:55Z","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":"52df228d875918576165961c7871b51325d39f14b30e0597cf6409a5e047d951","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2020-03-02T07:57:19Z","title_canon_sha256":"38cd8859d9e752953ab277af18fe47b8794cedec668fe86246e09ff79662984b"},"schema_version":"1.0","source":{"id":"2003.00702","kind":"arxiv","version":2}},"canonical_sha256":"36ec025d917ca725f3d7327bb76b621a186497abce30000a8d67060c5e7bc125","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36ec025d917ca725f3d7327bb76b621a186497abce30000a8d67060c5e7bc125","first_computed_at":"2026-07-05T01:29:55.237387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:29:55.237387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hocIP2TH/pQnCN+fNnycULot3czlnDoe/aN7FSrVzhq5ZFwsHGyLCsYZHK5JsZjJiVfbNFfL2blJByMZqKgCAA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:29:55.237825Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.00702","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:683b5d076999291dd4dc934a09c0f58a638bad1ae94cedfc15990b8c3ada048f","sha256:d1a995ec0b7ae0f4e9be6c71d23140a847654b42392bd29252ab0ef805019288"],"state_sha256":"a82edf4a0572e64257f21deac756b5d0f04078064763cbb7acf6fd959f4bbfd8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0FlTArEJ/7mbM8cLv9QTn33lQwY5un+quOhv3Pl11FeTFKNw6LapIlL5m28ChZVYluGcVfAhsogtChiUnBNqDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T20:39:07.247820Z","bundle_sha256":"15745c5926b4c2444202b1f593287bfb5534b6ae9d36c53b13ddad537dde0ddf"}}