{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1995:LBCF7LQ7MEEQHZWS2QWNVDPQVC","short_pith_number":"pith:LBCF7LQ7","canonical_record":{"source":{"id":"hep-ph/9511410","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1995-11-24T16:58:17Z","cross_cats_sorted":[],"title_canon_sha256":"361b3719bcae049fee2d4e7102651068f26428002a3cb480203e13ed15edc054","abstract_canon_sha256":"dc58b88c20e7062ec77fbdb2954eb0743d08093e27ba53adf541ffdc846c4479"},"schema_version":"1.0"},"canonical_sha256":"58445fae1f610903e6d2d42cda8df0a8a99bc5a84f26c2ee0860dc98045fc01c","source":{"kind":"arxiv","id":"hep-ph/9511410","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9511410","created_at":"2026-05-18T04:30:37Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9511410v1","created_at":"2026-05-18T04:30:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9511410","created_at":"2026-05-18T04:30:37Z"},{"alias_kind":"pith_short_12","alias_value":"LBCF7LQ7MEEQ","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"LBCF7LQ7MEEQHZWS","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"LBCF7LQ7","created_at":"2026-05-18T12:25:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1995:LBCF7LQ7MEEQHZWS2QWNVDPQVC","target":"record","payload":{"canonical_record":{"source":{"id":"hep-ph/9511410","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1995-11-24T16:58:17Z","cross_cats_sorted":[],"title_canon_sha256":"361b3719bcae049fee2d4e7102651068f26428002a3cb480203e13ed15edc054","abstract_canon_sha256":"dc58b88c20e7062ec77fbdb2954eb0743d08093e27ba53adf541ffdc846c4479"},"schema_version":"1.0"},"canonical_sha256":"58445fae1f610903e6d2d42cda8df0a8a99bc5a84f26c2ee0860dc98045fc01c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:30:37.624586Z","signature_b64":"wV5PeOIrQzaNYVEfmovA6B/Ax7KCD/zPirJJsWD8j1L3SORDDQBJAxS/y7RuUKryOQ48Y5GqT0to1i60DioMDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58445fae1f610903e6d2d42cda8df0a8a99bc5a84f26c2ee0860dc98045fc01c","last_reissued_at":"2026-05-18T04:30:37.623843Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:30:37.623843Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"hep-ph/9511410","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":"2026-05-18T04:30:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q8KntdC9vXCxnj+PzEBlB9/r24W21hcoFEO/8FL1pyQNBGzbDaFs190dxGw4B+KNoLMFLar04H9yokKDnNuEDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:51:53.201561Z"},"content_sha256":"2a06138bed806f15a403f3c20d1ff5a03ffee06d7533da418ac0e5a53c93310b","schema_version":"1.0","event_id":"sha256:2a06138bed806f15a403f3c20d1ff5a03ffee06d7533da418ac0e5a53c93310b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1995:LBCF7LQ7MEEQHZWS2QWNVDPQVC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Production of B_c Mesons in Photon-Photon and Hadron-Hadron Collisions","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Arnd Leike, Karol Kolodziej, Reinhold Rueckl","submitted_at":"1995-11-24T16:58:17Z","abstract_excerpt":"We discuss two-photon and hadronic production of $B_c$ mesons in nonrelativistic bound state approximation and to lowest order in the coupling constants $\\alpha$ and $\\alpha_s$. It is shown that in photon-photon collisions, heavy quark fragmentation is dominated by recombination of $\\bar b$ and $c$ quarks up to the highest accessible transverse momenta. In contrast, in hadroproduction, which at high energies mainly involves gluon--gluon collisions, the fragmentation mechanism dominates at transverse momenta $p_T > m_{B_c}$, providing a simple and satisfactory approximation of the complete $O(\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9511410","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":"2026-05-18T04:30:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O0rrXDf/DptHmFJKFMd6e7Q+PuRwUaAfZlJxmouX0decnxtcSAG/SF9Vf8kh3GVDIgImMl4aXaeAUh73OTt9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:51:53.201914Z"},"content_sha256":"90ebc5dfd8bd57431335f3429a1874416cfe7c7b8103d75cafc99fdffd42d937","schema_version":"1.0","event_id":"sha256:90ebc5dfd8bd57431335f3429a1874416cfe7c7b8103d75cafc99fdffd42d937"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC/bundle.json","state_url":"https://pith.science/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC/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":"2026-05-28T11:51:53Z","links":{"resolver":"https://pith.science/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC","bundle":"https://pith.science/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC/bundle.json","state":"https://pith.science/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LBCF7LQ7MEEQHZWS2QWNVDPQVC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1995:LBCF7LQ7MEEQHZWS2QWNVDPQVC","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":"dc58b88c20e7062ec77fbdb2954eb0743d08093e27ba53adf541ffdc846c4479","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1995-11-24T16:58:17Z","title_canon_sha256":"361b3719bcae049fee2d4e7102651068f26428002a3cb480203e13ed15edc054"},"schema_version":"1.0","source":{"id":"hep-ph/9511410","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9511410","created_at":"2026-05-18T04:30:37Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9511410v1","created_at":"2026-05-18T04:30:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9511410","created_at":"2026-05-18T04:30:37Z"},{"alias_kind":"pith_short_12","alias_value":"LBCF7LQ7MEEQ","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"LBCF7LQ7MEEQHZWS","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"LBCF7LQ7","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:90ebc5dfd8bd57431335f3429a1874416cfe7c7b8103d75cafc99fdffd42d937","target":"graph","created_at":"2026-05-18T04:30:37Z","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 discuss two-photon and hadronic production of $B_c$ mesons in nonrelativistic bound state approximation and to lowest order in the coupling constants $\\alpha$ and $\\alpha_s$. It is shown that in photon-photon collisions, heavy quark fragmentation is dominated by recombination of $\\bar b$ and $c$ quarks up to the highest accessible transverse momenta. In contrast, in hadroproduction, which at high energies mainly involves gluon--gluon collisions, the fragmentation mechanism dominates at transverse momenta $p_T > m_{B_c}$, providing a simple and satisfactory approximation of the complete $O(\\","authors_text":"Arnd Leike, Karol Kolodziej, Reinhold Rueckl","cross_cats":[],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1995-11-24T16:58:17Z","title":"Production of B_c Mesons in Photon-Photon and Hadron-Hadron Collisions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9511410","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":"sha256:2a06138bed806f15a403f3c20d1ff5a03ffee06d7533da418ac0e5a53c93310b","target":"record","created_at":"2026-05-18T04:30:37Z","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":"dc58b88c20e7062ec77fbdb2954eb0743d08093e27ba53adf541ffdc846c4479","cross_cats_sorted":[],"license":"","primary_cat":"hep-ph","submitted_at":"1995-11-24T16:58:17Z","title_canon_sha256":"361b3719bcae049fee2d4e7102651068f26428002a3cb480203e13ed15edc054"},"schema_version":"1.0","source":{"id":"hep-ph/9511410","kind":"arxiv","version":1}},"canonical_sha256":"58445fae1f610903e6d2d42cda8df0a8a99bc5a84f26c2ee0860dc98045fc01c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58445fae1f610903e6d2d42cda8df0a8a99bc5a84f26c2ee0860dc98045fc01c","first_computed_at":"2026-05-18T04:30:37.623843Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:30:37.623843Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wV5PeOIrQzaNYVEfmovA6B/Ax7KCD/zPirJJsWD8j1L3SORDDQBJAxS/y7RuUKryOQ48Y5GqT0to1i60DioMDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:30:37.624586Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9511410","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a06138bed806f15a403f3c20d1ff5a03ffee06d7533da418ac0e5a53c93310b","sha256:90ebc5dfd8bd57431335f3429a1874416cfe7c7b8103d75cafc99fdffd42d937"],"state_sha256":"4090735de2065cb7d0ffd472c57beae412a63fa70f68cc6cc92884acc147a5b8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LjLETA2D46coWFRtwWzHjQb+SXpTUHJ1/exe9nXedIzLmAoRrNvBtgVdTd1YFi8kpDH+T5wxcggEPRG1lRezBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:51:53.203867Z","bundle_sha256":"7aeca5541a43d6f091c5181b92591095938eb6c4e02ebc5bbe4bb4fd8240840c"}}