{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:FML53USHBTESR7YFTZC42C5TCD","short_pith_number":"pith:FML53USH","canonical_record":{"source":{"id":"1103.3649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-03-18T15:14:01Z","cross_cats_sorted":[],"title_canon_sha256":"284a2480bceaa5c176b85bb80fd9c34b13230ca539ed650e19f7ea685cf87fe2","abstract_canon_sha256":"379e5a37caff2ef929cf8220397c82a7f7e2200cc90795c88403547aaaf4c3f5"},"schema_version":"1.0"},"canonical_sha256":"2b17ddd2470cc928ff059e45cd0bb310c5b67f174d421513881c6d8c4e927ee5","source":{"kind":"arxiv","id":"1103.3649","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.3649","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"arxiv_version","alias_value":"1103.3649v1","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3649","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"pith_short_12","alias_value":"FML53USHBTES","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FML53USHBTESR7YF","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FML53USH","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:FML53USHBTESR7YFTZC42C5TCD","target":"record","payload":{"canonical_record":{"source":{"id":"1103.3649","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-03-18T15:14:01Z","cross_cats_sorted":[],"title_canon_sha256":"284a2480bceaa5c176b85bb80fd9c34b13230ca539ed650e19f7ea685cf87fe2","abstract_canon_sha256":"379e5a37caff2ef929cf8220397c82a7f7e2200cc90795c88403547aaaf4c3f5"},"schema_version":"1.0"},"canonical_sha256":"2b17ddd2470cc928ff059e45cd0bb310c5b67f174d421513881c6d8c4e927ee5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:49.733498Z","signature_b64":"prbZH76jJi74tpP7N7Ef3PLNIe+8z3QZSCeDOzimYDWYxTppjRZaFOBu3MYtw6uef4YHAP1qn6vPSElHiN34BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b17ddd2470cc928ff059e45cd0bb310c5b67f174d421513881c6d8c4e927ee5","last_reissued_at":"2026-05-18T02:02:49.732878Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:49.732878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.3649","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":"2026-05-18T02:02:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IFlz/hz51AlL8FGnAwOFWYG/eRNCK8ah8NgSCz3Ob1qxKTD0rCJIk4PtUa4A95tpkPq0BiWgBUcDTk5nkphdAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T07:35:50.924235Z"},"content_sha256":"5f768ab95cce28513466b3017172668f21bacb62624b91d61ca3f9537ecea0cd","schema_version":"1.0","event_id":"sha256:5f768ab95cce28513466b3017172668f21bacb62624b91d61ca3f9537ecea0cd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:FML53USHBTESR7YFTZC42C5TCD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy Scaling of Minimum-Bias Tunes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Holger Schulz, Peter Skands","submitted_at":"2011-03-18T15:14:01Z","abstract_excerpt":"We propose that the flexibility offered by modern event-generator tuning tools allows for more than just obtaining \"best fits\" to a collection of data. In particular, we argue that the universality of the underlying physics model can be tested by performing several, mutually independent, optimizations of the generator parameters in different physical regions. For regions in which these optimizations return similar and self-consistent parameter values, the model can be considered universal. Deviations from this behavior can be associated with a breakdown of the modeling, with the nature of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3649","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":""},"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":"2026-05-18T02:02:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+77Bd7B7p7pf2CA3gbt29Gu0Wsz9kpBGw/ccrnvJ/fQo/g3tJGav6UBCYAW68ffdp8SzR44A/1e842d1qdgqCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T07:35:50.925017Z"},"content_sha256":"3a2389638f06a189e9289b194048d6d06df766bbeb68314fc670e8f30f20f284","schema_version":"1.0","event_id":"sha256:3a2389638f06a189e9289b194048d6d06df766bbeb68314fc670e8f30f20f284"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FML53USHBTESR7YFTZC42C5TCD/bundle.json","state_url":"https://pith.science/pith/FML53USHBTESR7YFTZC42C5TCD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FML53USHBTESR7YFTZC42C5TCD/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":"2026-06-09T07:35:50Z","links":{"resolver":"https://pith.science/pith/FML53USHBTESR7YFTZC42C5TCD","bundle":"https://pith.science/pith/FML53USHBTESR7YFTZC42C5TCD/bundle.json","state":"https://pith.science/pith/FML53USHBTESR7YFTZC42C5TCD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FML53USHBTESR7YFTZC42C5TCD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FML53USHBTESR7YFTZC42C5TCD","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":"379e5a37caff2ef929cf8220397c82a7f7e2200cc90795c88403547aaaf4c3f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-03-18T15:14:01Z","title_canon_sha256":"284a2480bceaa5c176b85bb80fd9c34b13230ca539ed650e19f7ea685cf87fe2"},"schema_version":"1.0","source":{"id":"1103.3649","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.3649","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"arxiv_version","alias_value":"1103.3649v1","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3649","created_at":"2026-05-18T02:02:49Z"},{"alias_kind":"pith_short_12","alias_value":"FML53USHBTES","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FML53USHBTESR7YF","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FML53USH","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:3a2389638f06a189e9289b194048d6d06df766bbeb68314fc670e8f30f20f284","target":"graph","created_at":"2026-05-18T02:02:49Z","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"},"paper":{"abstract_excerpt":"We propose that the flexibility offered by modern event-generator tuning tools allows for more than just obtaining \"best fits\" to a collection of data. In particular, we argue that the universality of the underlying physics model can be tested by performing several, mutually independent, optimizations of the generator parameters in different physical regions. For regions in which these optimizations return similar and self-consistent parameter values, the model can be considered universal. Deviations from this behavior can be associated with a breakdown of the modeling, with the nature of the ","authors_text":"Holger Schulz, Peter Skands","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-03-18T15:14:01Z","title":"Energy Scaling of Minimum-Bias Tunes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3649","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":"sha256:5f768ab95cce28513466b3017172668f21bacb62624b91d61ca3f9537ecea0cd","target":"record","created_at":"2026-05-18T02:02:49Z","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":"379e5a37caff2ef929cf8220397c82a7f7e2200cc90795c88403547aaaf4c3f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-03-18T15:14:01Z","title_canon_sha256":"284a2480bceaa5c176b85bb80fd9c34b13230ca539ed650e19f7ea685cf87fe2"},"schema_version":"1.0","source":{"id":"1103.3649","kind":"arxiv","version":1}},"canonical_sha256":"2b17ddd2470cc928ff059e45cd0bb310c5b67f174d421513881c6d8c4e927ee5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b17ddd2470cc928ff059e45cd0bb310c5b67f174d421513881c6d8c4e927ee5","first_computed_at":"2026-05-18T02:02:49.732878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:49.732878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"prbZH76jJi74tpP7N7Ef3PLNIe+8z3QZSCeDOzimYDWYxTppjRZaFOBu3MYtw6uef4YHAP1qn6vPSElHiN34BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:49.733498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.3649","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f768ab95cce28513466b3017172668f21bacb62624b91d61ca3f9537ecea0cd","sha256:3a2389638f06a189e9289b194048d6d06df766bbeb68314fc670e8f30f20f284"],"state_sha256":"4b6ad7cf69b8eed04c4d363a8aeea4b4cf873b049257792875b6150037fbb344"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DPtnw6i8BUJ+/ZfltvJjUx+GXWykDY0UVKpFiocFHnXCjwSS3C7qrhGrgM8ul5cW//MPtiffXdd8D50W0oNfCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T07:35:50.929113Z","bundle_sha256":"20c3e77255e216d2cca27f5bc949dcf1044c25ec528aeddafcfbfdfc6e7c5179"}}