{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:Y4DCWTHYGZMECSPKACQDMTNOGJ","short_pith_number":"pith:Y4DCWTHY","canonical_record":{"source":{"id":"2211.08838","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2022-11-16T11:27:26Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"9a91434e1520b95b45267e72710a1f26d395026c80d467f00ca2036db0792b46","abstract_canon_sha256":"a7f6944a5df98f961c68761c9e0c512aa8cbbb356b8b3da139ac504675ab6f9a"},"schema_version":"1.0"},"canonical_sha256":"c7062b4cf836584149ea00a0364dae3260f5abc36cb0a596a34e7dae1aafc846","source":{"kind":"arxiv","id":"2211.08838","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.08838","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"2211.08838v2","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.08838","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"Y4DCWTHYGZME","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y4DCWTHYGZMECSPK","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y4DCWTHY","created_at":"2026-07-05T05:53:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:Y4DCWTHYGZMECSPKACQDMTNOGJ","target":"record","payload":{"canonical_record":{"source":{"id":"2211.08838","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2022-11-16T11:27:26Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"9a91434e1520b95b45267e72710a1f26d395026c80d467f00ca2036db0792b46","abstract_canon_sha256":"a7f6944a5df98f961c68761c9e0c512aa8cbbb356b8b3da139ac504675ab6f9a"},"schema_version":"1.0"},"canonical_sha256":"c7062b4cf836584149ea00a0364dae3260f5abc36cb0a596a34e7dae1aafc846","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:53:06.240442Z","signature_b64":"ys7IMDSAX4eqAGVhKTJX757sw+kQQBruteUqdfSROpFfkrK8tr1OewTnLiPouadQtXbjYTPieJJaA4aX/qezDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c7062b4cf836584149ea00a0364dae3260f5abc36cb0a596a34e7dae1aafc846","last_reissued_at":"2026-07-05T05:53:06.240028Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:53:06.240028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.08838","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":"2026-07-05T05:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xYo1mjWuxtw8F8+JhEFMBj39EUvxxb7l/Bt9UZQhlTAtPiWAVyZXmooXMKKDiLLXJVEH055FSpZSOxAuNW6xAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:02:33.539359Z"},"content_sha256":"8ebd4620e1cfba468ff8f6537a3392dd44429154e4e16cf6a7896a5f67d14e51","schema_version":"1.0","event_id":"sha256:8ebd4620e1cfba468ff8f6537a3392dd44429154e4e16cf6a7896a5f67d14e51"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:Y4DCWTHYGZMECSPKACQDMTNOGJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-loop form factors for pseudo-scalar quarkonium production and decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"hep-ph","authors_text":"Claude Duhr, Matteo Becchetti, Melih A. Ozcelik, Samuel Abreu","submitted_at":"2022-11-16T11:27:26Z","abstract_excerpt":"We present the analytic expressions for the two-loop form factors for the production or decay of pseudo-scalar quarkonia, in a scheme where the quarks are produced at threshold. We consider the two-loop amplitude for the process $\\gamma \\gamma \\leftrightarrow {^1S_0^{[1]}}$, that was previously known only numerically, as well as for the processes $gg \\leftrightarrow {^1S_0^{[1]}}$, $\\gamma g \\leftrightarrow {^1S_0^{[8]}}$ and $gg \\leftrightarrow {^1S_0^{[8]}}$, which have not been computed before. The two-loop corrections to $gg \\leftrightarrow {^1S_0^{[1]}}$ are the last missing ingredients f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.08838","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/2211.08838/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":"2026-07-05T05:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CsLmDXq6Akt45QtW3Wyv12fK/wktH4Ir4H0dJOmxTMW7oX+0bgLUuZkNhb5myla5CgehoJq1+yOVDZttM8LtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:02:33.539994Z"},"content_sha256":"7e782a43b65321d4280ef524cdf0806b3c99af964a726a814c4dc92ed923be8d","schema_version":"1.0","event_id":"sha256:7e782a43b65321d4280ef524cdf0806b3c99af964a726a814c4dc92ed923be8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ/bundle.json","state_url":"https://pith.science/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ/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":"2026-08-12T03:02:33Z","links":{"resolver":"https://pith.science/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ","bundle":"https://pith.science/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ/bundle.json","state":"https://pith.science/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y4DCWTHYGZMECSPKACQDMTNOGJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:Y4DCWTHYGZMECSPKACQDMTNOGJ","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":"a7f6944a5df98f961c68761c9e0c512aa8cbbb356b8b3da139ac504675ab6f9a","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2022-11-16T11:27:26Z","title_canon_sha256":"9a91434e1520b95b45267e72710a1f26d395026c80d467f00ca2036db0792b46"},"schema_version":"1.0","source":{"id":"2211.08838","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.08838","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"2211.08838v2","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.08838","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"Y4DCWTHYGZME","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"pith_short_16","alias_value":"Y4DCWTHYGZMECSPK","created_at":"2026-07-05T05:53:06Z"},{"alias_kind":"pith_short_8","alias_value":"Y4DCWTHY","created_at":"2026-07-05T05:53:06Z"}],"graph_snapshots":[{"event_id":"sha256:7e782a43b65321d4280ef524cdf0806b3c99af964a726a814c4dc92ed923be8d","target":"graph","created_at":"2026-07-05T05:53:06Z","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/2211.08838/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the analytic expressions for the two-loop form factors for the production or decay of pseudo-scalar quarkonia, in a scheme where the quarks are produced at threshold. We consider the two-loop amplitude for the process $\\gamma \\gamma \\leftrightarrow {^1S_0^{[1]}}$, that was previously known only numerically, as well as for the processes $gg \\leftrightarrow {^1S_0^{[1]}}$, $\\gamma g \\leftrightarrow {^1S_0^{[8]}}$ and $gg \\leftrightarrow {^1S_0^{[8]}}$, which have not been computed before. The two-loop corrections to $gg \\leftrightarrow {^1S_0^{[1]}}$ are the last missing ingredients f","authors_text":"Claude Duhr, Matteo Becchetti, Melih A. Ozcelik, Samuel Abreu","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2022-11-16T11:27:26Z","title":"Two-loop form factors for pseudo-scalar quarkonium production and decay"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.08838","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":"sha256:8ebd4620e1cfba468ff8f6537a3392dd44429154e4e16cf6a7896a5f67d14e51","target":"record","created_at":"2026-07-05T05:53:06Z","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":"a7f6944a5df98f961c68761c9e0c512aa8cbbb356b8b3da139ac504675ab6f9a","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2022-11-16T11:27:26Z","title_canon_sha256":"9a91434e1520b95b45267e72710a1f26d395026c80d467f00ca2036db0792b46"},"schema_version":"1.0","source":{"id":"2211.08838","kind":"arxiv","version":2}},"canonical_sha256":"c7062b4cf836584149ea00a0364dae3260f5abc36cb0a596a34e7dae1aafc846","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7062b4cf836584149ea00a0364dae3260f5abc36cb0a596a34e7dae1aafc846","first_computed_at":"2026-07-05T05:53:06.240028Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:53:06.240028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ys7IMDSAX4eqAGVhKTJX757sw+kQQBruteUqdfSROpFfkrK8tr1OewTnLiPouadQtXbjYTPieJJaA4aX/qezDg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:53:06.240442Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.08838","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ebd4620e1cfba468ff8f6537a3392dd44429154e4e16cf6a7896a5f67d14e51","sha256:7e782a43b65321d4280ef524cdf0806b3c99af964a726a814c4dc92ed923be8d"],"state_sha256":"187422668688a1bd85c43b20db3fa153cb977bf1dab8e8bee64fa8a0b1a34cd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PfKGOeVP7FQi7wN2EO/mv5qpylPA6OqQHnJG9okzfYKHU3oCybC7TpFGPtV4D1dDjlqoOdWE01RqFX/whEynAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T03:02:33.544713Z","bundle_sha256":"81a068788785bab719e649503b15bf00c791ae4ad6f74b9a3a003b718360b668"}}