{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UX63NAHENJ25TJVNLB54O2VJBR","short_pith_number":"pith:UX63NAHE","canonical_record":{"source":{"id":"1808.03117","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-08-09T12:38:52Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"54eb87c35dee02f05b4ba717a1ce1e5d80e6356f65868317b710221aae273b9d","abstract_canon_sha256":"fa741a2f8bd672ddbc17384a52f1f812669aef77c4f7bc0081858103ef26e3a5"},"schema_version":"1.0"},"canonical_sha256":"a5fdb680e46a75d9a6ad587bc76aa90c63a2c71173fdf9eb11a7cddcff2e4331","source":{"kind":"arxiv","id":"1808.03117","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03117","created_at":"2026-05-17T23:53:29Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03117v1","created_at":"2026-05-17T23:53:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03117","created_at":"2026-05-17T23:53:29Z"},{"alias_kind":"pith_short_12","alias_value":"UX63NAHENJ25","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UX63NAHENJ25TJVN","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UX63NAHE","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UX63NAHENJ25TJVNLB54O2VJBR","target":"record","payload":{"canonical_record":{"source":{"id":"1808.03117","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-08-09T12:38:52Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"54eb87c35dee02f05b4ba717a1ce1e5d80e6356f65868317b710221aae273b9d","abstract_canon_sha256":"fa741a2f8bd672ddbc17384a52f1f812669aef77c4f7bc0081858103ef26e3a5"},"schema_version":"1.0"},"canonical_sha256":"a5fdb680e46a75d9a6ad587bc76aa90c63a2c71173fdf9eb11a7cddcff2e4331","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:29.470765Z","signature_b64":"tUGnvfeJWCHK+3g4is/LoUvV0IHwY05aAsmOK2CVnLaYbpnUgOcS8nUWVrlec44IqxhANuY4eBU4FnGpyXb2Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5fdb680e46a75d9a6ad587bc76aa90c63a2c71173fdf9eb11a7cddcff2e4331","last_reissued_at":"2026-05-17T23:53:29.470192Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:29.470192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.03117","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":"2026-05-17T23:53:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OKcHBp9di4H8v+lqGJ9BNx3kcAaeMMyk6vfi5SLdty1mW4w5bBXii0CFGj3DUG+sZFCZB2MvC407Xg4HyW7GAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T22:06:11.172400Z"},"content_sha256":"7fd32eb23efbd144007d0208af26581300363a9d121a88732183baae2b26a395","schema_version":"1.0","event_id":"sha256:7fd32eb23efbd144007d0208af26581300363a9d121a88732183baae2b26a395"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UX63NAHENJ25TJVNLB54O2VJBR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Collective Effects: the viewpoint of HEP MC codes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Torbj\\\"orn Sj\\\"ostrand","submitted_at":"2018-08-09T12:38:52Z","abstract_excerpt":"Collective effects are observed in high-multiplicity pp events, similar to the signals traditionally attributed to the formation of a Quark Gluon Plasma in heavy ion collisions. In core--corona models it is assumed that a partial plasma formation is indeed possible also in pp, but here the focus is on several recent models that attempt to explain pp data without invoking plasma formation. These attempts are partly successful, but there is still not a unified framework."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03117","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":"2026-05-17T23:53:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2Ct9AY0o+OrlfACcwOlFpA1wV7vTsNvedFXiifqyetS3KUrtXXiUUbiUAbBkWGRA9OhPc9Y/aWSWjKNof9wtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T22:06:11.172746Z"},"content_sha256":"874171cdc85d4a38169c500b0798e70718e26065c86b602402c8235d4cfe6595","schema_version":"1.0","event_id":"sha256:874171cdc85d4a38169c500b0798e70718e26065c86b602402c8235d4cfe6595"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UX63NAHENJ25TJVNLB54O2VJBR/bundle.json","state_url":"https://pith.science/pith/UX63NAHENJ25TJVNLB54O2VJBR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UX63NAHENJ25TJVNLB54O2VJBR/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":"2026-07-02T22:06:11Z","links":{"resolver":"https://pith.science/pith/UX63NAHENJ25TJVNLB54O2VJBR","bundle":"https://pith.science/pith/UX63NAHENJ25TJVNLB54O2VJBR/bundle.json","state":"https://pith.science/pith/UX63NAHENJ25TJVNLB54O2VJBR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UX63NAHENJ25TJVNLB54O2VJBR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UX63NAHENJ25TJVNLB54O2VJBR","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":"fa741a2f8bd672ddbc17384a52f1f812669aef77c4f7bc0081858103ef26e3a5","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-08-09T12:38:52Z","title_canon_sha256":"54eb87c35dee02f05b4ba717a1ce1e5d80e6356f65868317b710221aae273b9d"},"schema_version":"1.0","source":{"id":"1808.03117","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.03117","created_at":"2026-05-17T23:53:29Z"},{"alias_kind":"arxiv_version","alias_value":"1808.03117v1","created_at":"2026-05-17T23:53:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03117","created_at":"2026-05-17T23:53:29Z"},{"alias_kind":"pith_short_12","alias_value":"UX63NAHENJ25","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UX63NAHENJ25TJVN","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UX63NAHE","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:874171cdc85d4a38169c500b0798e70718e26065c86b602402c8235d4cfe6595","target":"graph","created_at":"2026-05-17T23:53:29Z","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":"Collective effects are observed in high-multiplicity pp events, similar to the signals traditionally attributed to the formation of a Quark Gluon Plasma in heavy ion collisions. In core--corona models it is assumed that a partial plasma formation is indeed possible also in pp, but here the focus is on several recent models that attempt to explain pp data without invoking plasma formation. These attempts are partly successful, but there is still not a unified framework.","authors_text":"Torbj\\\"orn Sj\\\"ostrand","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-08-09T12:38:52Z","title":"Collective Effects: the viewpoint of HEP MC codes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03117","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":"sha256:7fd32eb23efbd144007d0208af26581300363a9d121a88732183baae2b26a395","target":"record","created_at":"2026-05-17T23:53:29Z","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":"fa741a2f8bd672ddbc17384a52f1f812669aef77c4f7bc0081858103ef26e3a5","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-08-09T12:38:52Z","title_canon_sha256":"54eb87c35dee02f05b4ba717a1ce1e5d80e6356f65868317b710221aae273b9d"},"schema_version":"1.0","source":{"id":"1808.03117","kind":"arxiv","version":1}},"canonical_sha256":"a5fdb680e46a75d9a6ad587bc76aa90c63a2c71173fdf9eb11a7cddcff2e4331","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5fdb680e46a75d9a6ad587bc76aa90c63a2c71173fdf9eb11a7cddcff2e4331","first_computed_at":"2026-05-17T23:53:29.470192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:29.470192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tUGnvfeJWCHK+3g4is/LoUvV0IHwY05aAsmOK2CVnLaYbpnUgOcS8nUWVrlec44IqxhANuY4eBU4FnGpyXb2Ag==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:29.470765Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.03117","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fd32eb23efbd144007d0208af26581300363a9d121a88732183baae2b26a395","sha256:874171cdc85d4a38169c500b0798e70718e26065c86b602402c8235d4cfe6595"],"state_sha256":"f35fdee8436d3d4bf9dab51f6fbce0136b704993751f216429adcc89a1804499"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BwcmzONuCmCVH4OLzQgSUtm69i0q2i3tlzu1jYw5jrjZJRKCg9zCPN+CvGo0DFrEl/IWtNc4s629i0ZzP3GDCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T22:06:11.174665Z","bundle_sha256":"01e1dc91c4f8268e46c4c7d01f7061dabd2dce96dc5367aeff152fda918149aa"}}