{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:X23WURVBVEWALAZOOOJBCU6N3Y","short_pith_number":"pith:X23WURVB","canonical_record":{"source":{"id":"1404.6101","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-24T12:22:46Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"7bc1f2daf8c777296e5084207726eb6dc81f5a33e989582acd48e570225ce9bd","abstract_canon_sha256":"27043a3a05028b081b84445683b8f6820a7cf282d44f5f82fce819948e0fb984"},"schema_version":"1.0"},"canonical_sha256":"beb76a46a1a92c05832e73921153cdde215122c7c19ee78ad5e30a4be184c7c3","source":{"kind":"arxiv","id":"1404.6101","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6101","created_at":"2026-05-18T02:53:18Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6101v1","created_at":"2026-05-18T02:53:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6101","created_at":"2026-05-18T02:53:18Z"},{"alias_kind":"pith_short_12","alias_value":"X23WURVBVEWA","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"X23WURVBVEWALAZO","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"X23WURVB","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:X23WURVBVEWALAZOOOJBCU6N3Y","target":"record","payload":{"canonical_record":{"source":{"id":"1404.6101","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-24T12:22:46Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"7bc1f2daf8c777296e5084207726eb6dc81f5a33e989582acd48e570225ce9bd","abstract_canon_sha256":"27043a3a05028b081b84445683b8f6820a7cf282d44f5f82fce819948e0fb984"},"schema_version":"1.0"},"canonical_sha256":"beb76a46a1a92c05832e73921153cdde215122c7c19ee78ad5e30a4be184c7c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:53:18.362784Z","signature_b64":"/YiNnU9rpm90NpbxZeEXAfxRMOKnnWK5bOeS2s7htdIPkJoImkAO+JSVPcqsjJREow8f90iUWmXZ6hupq3kdDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"beb76a46a1a92c05832e73921153cdde215122c7c19ee78ad5e30a4be184c7c3","last_reissued_at":"2026-05-18T02:53:18.362081Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:53:18.362081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.6101","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":"2026-05-18T02:53:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oOqPG8k7p9b0BZBrOFWl8vBSv2K1UTj3dnUZepvBJ1yGObUkzoUONYYmccRZd24BncyGUJpB/acQ9g7j5Gs6Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T17:40:24.248802Z"},"content_sha256":"f8ffbd2e9e1328ab09aaa26b29b5cac933e535b8809ed0f047e179ac0c367eae","schema_version":"1.0","event_id":"sha256:f8ffbd2e9e1328ab09aaa26b29b5cac933e535b8809ed0f047e179ac0c367eae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:X23WURVBVEWALAZOOOJBCU6N3Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Comparison of $\\psi(2S)$ and $J/\\psi$ photoproduction cross sections in Pb-Pb ultraperipheral collisions at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Gatchina), M. Zhalov (PNPI, V. Guzey","submitted_at":"2014-04-24T12:22:46Z","abstract_excerpt":"Within the leading logarithmic approximation of perturbative QCD and the leading twist approach to nuclear shadowing, we compare the cross sections of photoproduction of $J/\\psi$ and $\\psi(2S)$ mesons on nuclei in Pb-Pb UPCs in the LHC kinematics. We find that the nuclear suppression of these cross sections due to the nuclear gluon shadowing is large and rather similar in the $J/\\psi$ and $\\psi(2S)$ cases."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6101","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":"2026-05-18T02:53:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"shDOoWQTdqn73gzPCwI24V2AH/NdHJKZDuNSL8v8RrB8wb9X3YIGHWitilj0T4ZGJpkKg3IQN04DidXyaUsFCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T17:40:24.249523Z"},"content_sha256":"4ae4139d34f0a7b1974867e8a01b30a2d2d514b7f40f0f8d84dfcf16cffd5e48","schema_version":"1.0","event_id":"sha256:4ae4139d34f0a7b1974867e8a01b30a2d2d514b7f40f0f8d84dfcf16cffd5e48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X23WURVBVEWALAZOOOJBCU6N3Y/bundle.json","state_url":"https://pith.science/pith/X23WURVBVEWALAZOOOJBCU6N3Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X23WURVBVEWALAZOOOJBCU6N3Y/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":"2026-06-11T17:40:24Z","links":{"resolver":"https://pith.science/pith/X23WURVBVEWALAZOOOJBCU6N3Y","bundle":"https://pith.science/pith/X23WURVBVEWALAZOOOJBCU6N3Y/bundle.json","state":"https://pith.science/pith/X23WURVBVEWALAZOOOJBCU6N3Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X23WURVBVEWALAZOOOJBCU6N3Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:X23WURVBVEWALAZOOOJBCU6N3Y","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":"27043a3a05028b081b84445683b8f6820a7cf282d44f5f82fce819948e0fb984","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-24T12:22:46Z","title_canon_sha256":"7bc1f2daf8c777296e5084207726eb6dc81f5a33e989582acd48e570225ce9bd"},"schema_version":"1.0","source":{"id":"1404.6101","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6101","created_at":"2026-05-18T02:53:18Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6101v1","created_at":"2026-05-18T02:53:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6101","created_at":"2026-05-18T02:53:18Z"},{"alias_kind":"pith_short_12","alias_value":"X23WURVBVEWA","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"X23WURVBVEWALAZO","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"X23WURVB","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:4ae4139d34f0a7b1974867e8a01b30a2d2d514b7f40f0f8d84dfcf16cffd5e48","target":"graph","created_at":"2026-05-18T02:53:18Z","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":"Within the leading logarithmic approximation of perturbative QCD and the leading twist approach to nuclear shadowing, we compare the cross sections of photoproduction of $J/\\psi$ and $\\psi(2S)$ mesons on nuclei in Pb-Pb UPCs in the LHC kinematics. We find that the nuclear suppression of these cross sections due to the nuclear gluon shadowing is large and rather similar in the $J/\\psi$ and $\\psi(2S)$ cases.","authors_text":"Gatchina), M. Zhalov (PNPI, V. Guzey","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-24T12:22:46Z","title":"Comparison of $\\psi(2S)$ and $J/\\psi$ photoproduction cross sections in Pb-Pb ultraperipheral collisions at the LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6101","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:f8ffbd2e9e1328ab09aaa26b29b5cac933e535b8809ed0f047e179ac0c367eae","target":"record","created_at":"2026-05-18T02:53:18Z","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":"27043a3a05028b081b84445683b8f6820a7cf282d44f5f82fce819948e0fb984","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-04-24T12:22:46Z","title_canon_sha256":"7bc1f2daf8c777296e5084207726eb6dc81f5a33e989582acd48e570225ce9bd"},"schema_version":"1.0","source":{"id":"1404.6101","kind":"arxiv","version":1}},"canonical_sha256":"beb76a46a1a92c05832e73921153cdde215122c7c19ee78ad5e30a4be184c7c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"beb76a46a1a92c05832e73921153cdde215122c7c19ee78ad5e30a4be184c7c3","first_computed_at":"2026-05-18T02:53:18.362081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:53:18.362081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/YiNnU9rpm90NpbxZeEXAfxRMOKnnWK5bOeS2s7htdIPkJoImkAO+JSVPcqsjJREow8f90iUWmXZ6hupq3kdDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:53:18.362784Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.6101","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8ffbd2e9e1328ab09aaa26b29b5cac933e535b8809ed0f047e179ac0c367eae","sha256:4ae4139d34f0a7b1974867e8a01b30a2d2d514b7f40f0f8d84dfcf16cffd5e48"],"state_sha256":"9607f33ed3f14e72bd664e37f8510c6af84f0760448c0286ff9574d1a5eda41f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Qa59jGyzHkStypjAYeSbOw9hgGsgKLsKVjKasrCBSJdAY5GgR8ROfLNbismE3l5nbuN7wIec8We/cM3qAbmBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T17:40:24.253601Z","bundle_sha256":"1a1fdf394735d09a493da06374aadeb75e172781d3a84278a059ef783eb3aff1"}}