{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:E52NOGCM5I5MFJXMFOXB2U4EDS","short_pith_number":"pith:E52NOGCM","canonical_record":{"source":{"id":"2103.01862","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-02T16:56:45Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"a1a704559841a9cf0f1db2b4f37d6c17ac596bfbd6963fd9141befa15c53b7df","abstract_canon_sha256":"f22612d3a9d55566b9a763b85cc54e5e1000544fffb4a557de7ed9e4b23a14ce"},"schema_version":"1.0"},"canonical_sha256":"2774d7184cea3ac2a6ec2bae1d53841c95d2ca76e77cf0eec658263ab301d308","source":{"kind":"arxiv","id":"2103.01862","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.01862","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"arxiv_version","alias_value":"2103.01862v1","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.01862","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_12","alias_value":"E52NOGCM5I5M","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_16","alias_value":"E52NOGCM5I5MFJXM","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_8","alias_value":"E52NOGCM","created_at":"2026-07-05T02:55:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:E52NOGCM5I5MFJXMFOXB2U4EDS","target":"record","payload":{"canonical_record":{"source":{"id":"2103.01862","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-02T16:56:45Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"a1a704559841a9cf0f1db2b4f37d6c17ac596bfbd6963fd9141befa15c53b7df","abstract_canon_sha256":"f22612d3a9d55566b9a763b85cc54e5e1000544fffb4a557de7ed9e4b23a14ce"},"schema_version":"1.0"},"canonical_sha256":"2774d7184cea3ac2a6ec2bae1d53841c95d2ca76e77cf0eec658263ab301d308","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:55:41.404086Z","signature_b64":"yDbsTqybmIhYAPrjqZyPGMoVv7/bkEzqH0JKSPSHlQRCdhPbPOfwuet6W4T6EjNO7KZmTMY80oIIsmawCcMzAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2774d7184cea3ac2a6ec2bae1d53841c95d2ca76e77cf0eec658263ab301d308","last_reissued_at":"2026-07-05T02:55:41.403677Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:55:41.403677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.01862","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":"2026-07-05T02:55:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSvFp/Kz9yrxYrGoxXYxeEdDh9/bVt/HDAywTVaxZi3oPnLNDSkfAx8/4t+wayTYP1QYIa9JRwbxbNPPqZC3Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T12:40:44.635258Z"},"content_sha256":"14595f774a6a79149352b264e70165029aef25019cef8a956667dcc8331eebd5","schema_version":"1.0","event_id":"sha256:14595f774a6a79149352b264e70165029aef25019cef8a956667dcc8331eebd5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:E52NOGCM5I5MFJXMFOXB2U4EDS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Searching for axionlike particles with low masses in $pPb$ and $PbPb$ collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"D. E. Martins, M. S. Rangel, V. P. Goncalves","submitted_at":"2021-03-02T16:56:45Z","abstract_excerpt":"The production of axionlike particles (ALPs) with small masses in ultraperipheral $Pb - p$ and $Pb - Pb$ collisions at the LHC is investigated. The cross section and kinematical distributions associated to the diphoton final state produced in the $\\gamma \\gamma \\rightarrow a \\rightarrow \\gamma \\gamma$ subprocesses are estimated considering a realistic set of kinematical cuts. A detailed analysis of the backgrounds is performed and the expected sensitivity to the ALP production is derived. Our results demonstrate that a future experimental analysis of the exclusive diphoton production for the f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.01862","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.01862/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":"2026-07-05T02:55:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OVRInHeRnAgBjzUZMn+UcfCLu1hiForkBigh6K9PHfzHOrBbfeVoX30R4uNHotTtBjEMX1uXdp4slWdYGWD/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T12:40:44.635896Z"},"content_sha256":"a22e317af71f93fc60efef78b95e9a9fbfdd2bc71417ace41c6faa1fa26bd094","schema_version":"1.0","event_id":"sha256:a22e317af71f93fc60efef78b95e9a9fbfdd2bc71417ace41c6faa1fa26bd094"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E52NOGCM5I5MFJXMFOXB2U4EDS/bundle.json","state_url":"https://pith.science/pith/E52NOGCM5I5MFJXMFOXB2U4EDS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E52NOGCM5I5MFJXMFOXB2U4EDS/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":"2026-08-16T12:40:44Z","links":{"resolver":"https://pith.science/pith/E52NOGCM5I5MFJXMFOXB2U4EDS","bundle":"https://pith.science/pith/E52NOGCM5I5MFJXMFOXB2U4EDS/bundle.json","state":"https://pith.science/pith/E52NOGCM5I5MFJXMFOXB2U4EDS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E52NOGCM5I5MFJXMFOXB2U4EDS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:E52NOGCM5I5MFJXMFOXB2U4EDS","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":"f22612d3a9d55566b9a763b85cc54e5e1000544fffb4a557de7ed9e4b23a14ce","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-02T16:56:45Z","title_canon_sha256":"a1a704559841a9cf0f1db2b4f37d6c17ac596bfbd6963fd9141befa15c53b7df"},"schema_version":"1.0","source":{"id":"2103.01862","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.01862","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"arxiv_version","alias_value":"2103.01862v1","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.01862","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_12","alias_value":"E52NOGCM5I5M","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_16","alias_value":"E52NOGCM5I5MFJXM","created_at":"2026-07-05T02:55:41Z"},{"alias_kind":"pith_short_8","alias_value":"E52NOGCM","created_at":"2026-07-05T02:55:41Z"}],"graph_snapshots":[{"event_id":"sha256:a22e317af71f93fc60efef78b95e9a9fbfdd2bc71417ace41c6faa1fa26bd094","target":"graph","created_at":"2026-07-05T02:55:41Z","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/2103.01862/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The production of axionlike particles (ALPs) with small masses in ultraperipheral $Pb - p$ and $Pb - Pb$ collisions at the LHC is investigated. The cross section and kinematical distributions associated to the diphoton final state produced in the $\\gamma \\gamma \\rightarrow a \\rightarrow \\gamma \\gamma$ subprocesses are estimated considering a realistic set of kinematical cuts. A detailed analysis of the backgrounds is performed and the expected sensitivity to the ALP production is derived. Our results demonstrate that a future experimental analysis of the exclusive diphoton production for the f","authors_text":"D. E. Martins, M. S. Rangel, V. P. Goncalves","cross_cats":["hep-ex","nucl-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-02T16:56:45Z","title":"Searching for axionlike particles with low masses in $pPb$ and $PbPb$ collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.01862","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":"sha256:14595f774a6a79149352b264e70165029aef25019cef8a956667dcc8331eebd5","target":"record","created_at":"2026-07-05T02:55:41Z","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":"f22612d3a9d55566b9a763b85cc54e5e1000544fffb4a557de7ed9e4b23a14ce","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-03-02T16:56:45Z","title_canon_sha256":"a1a704559841a9cf0f1db2b4f37d6c17ac596bfbd6963fd9141befa15c53b7df"},"schema_version":"1.0","source":{"id":"2103.01862","kind":"arxiv","version":1}},"canonical_sha256":"2774d7184cea3ac2a6ec2bae1d53841c95d2ca76e77cf0eec658263ab301d308","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2774d7184cea3ac2a6ec2bae1d53841c95d2ca76e77cf0eec658263ab301d308","first_computed_at":"2026-07-05T02:55:41.403677Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:55:41.403677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yDbsTqybmIhYAPrjqZyPGMoVv7/bkEzqH0JKSPSHlQRCdhPbPOfwuet6W4T6EjNO7KZmTMY80oIIsmawCcMzAg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:55:41.404086Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.01862","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14595f774a6a79149352b264e70165029aef25019cef8a956667dcc8331eebd5","sha256:a22e317af71f93fc60efef78b95e9a9fbfdd2bc71417ace41c6faa1fa26bd094"],"state_sha256":"aa33f5503c1a50367a66e5802f808e259e2dad2578584c454de7eb4968196b38"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JDp1QMV/l2zA7yrndVS7VDjyxwcbz9pWIM6qqducUfRcC4vCbPphJhiviP4I+auJ84ETETfGUD7bC/Zj8isIDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T12:40:44.640239Z","bundle_sha256":"62b7bff75e8b42232e21db17b2f0deaf71486dd7429b1d1efd81f19deca9db53"}}