{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:S7Y56FUNRYHYUUJUUUUAL6NC3H","short_pith_number":"pith:S7Y56FUN","canonical_record":{"source":{"id":"1511.00153","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-10-31T17:22:35Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"a594aebabe82ccc1b122eac1a4db840101b76edfaae0c3fe3d3e0dad024af7b9","abstract_canon_sha256":"434d91b1d8d2deab83a5fd85415071b75af89a02eba94afc995af6fd4043f245"},"schema_version":"1.0"},"canonical_sha256":"97f1df168d8e0f8a5134a52805f9a2d9f9c2a9abccd32b5530bc14df7203c06f","source":{"kind":"arxiv","id":"1511.00153","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00153","created_at":"2026-05-18T01:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00153v2","created_at":"2026-05-18T01:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00153","created_at":"2026-05-18T01:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"S7Y56FUNRYHY","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"S7Y56FUNRYHYUUJU","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"S7Y56FUN","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:S7Y56FUNRYHYUUJUUUUAL6NC3H","target":"record","payload":{"canonical_record":{"source":{"id":"1511.00153","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-10-31T17:22:35Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"a594aebabe82ccc1b122eac1a4db840101b76edfaae0c3fe3d3e0dad024af7b9","abstract_canon_sha256":"434d91b1d8d2deab83a5fd85415071b75af89a02eba94afc995af6fd4043f245"},"schema_version":"1.0"},"canonical_sha256":"97f1df168d8e0f8a5134a52805f9a2d9f9c2a9abccd32b5530bc14df7203c06f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:41.672344Z","signature_b64":"tLatGZD/6ljMGGFbjeJWqgnJdpFIPAIKHlcoKP3hFfPnE1KteoUd20pfmn/GIQQkvo4iYPXohwyEcQzspsyzAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97f1df168d8e0f8a5134a52805f9a2d9f9c2a9abccd32b5530bc14df7203c06f","last_reissued_at":"2026-05-18T01:21:41.671744Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:41.671744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.00153","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":"2026-05-18T01:21:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S0UlQWQdYpiED3EuUOATgDAHlxbyViTJq9BczLrFYXH6UWvhZQDvNu7/bSfbzv1SGmMws1mzMma7RPBQNZFYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:52:19.307763Z"},"content_sha256":"cff8462409a45baa49926e11af70a8a8606ef510d18e647ec4512d0eb20c752b","schema_version":"1.0","event_id":"sha256:cff8462409a45baa49926e11af70a8a8606ef510d18e647ec4512d0eb20c752b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:S7Y56FUNRYHYUUJUUUUAL6NC3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"(O_8, O_8) contribution to $\\bar{B} \\to X_s \\gamma \\gamma$ at O(\\alpha_s)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"A. Kokulu, C. Greub, H. M. Asatrian","submitted_at":"2015-10-31T17:22:35Z","abstract_excerpt":"In this analysis, we present the contribution associated with the chromomagnetic dipole operator O_8 to the double differential decay width d\\Gamma/(ds_1 ds_2) for the inclusive process $\\bar{B} \\to X_s \\gamma \\gamma$. The kinematical variables s_1 and s_2 are defined as s_i=(p_b - q_i)^2/m_b^2, where p_b, q_1, q_2 are the momenta of b-quark and two photons. This contribution (taken at tree level) is of order \\alpha_s, like the recently calculated QCD corrections to the contribution of the operator O_7. In order to regulate possible collinear singularities of one of the photons with the strang"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00153","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":""},"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":"2026-05-18T01:21:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+9z82WqpQ6TzC95b48Dqyt4R128/9IXoQouSAIK9uLICfeIWfDDBXfIys/IbSIgNZ1HIFp/Rz4nyTjvh6SIoCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:52:19.308486Z"},"content_sha256":"69f274c5369425286bf5ac5fc1bc74e2c1ad385a323014604e76c962fc76d719","schema_version":"1.0","event_id":"sha256:69f274c5369425286bf5ac5fc1bc74e2c1ad385a323014604e76c962fc76d719"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H/bundle.json","state_url":"https://pith.science/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H/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":"2026-05-25T22:52:19Z","links":{"resolver":"https://pith.science/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H","bundle":"https://pith.science/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H/bundle.json","state":"https://pith.science/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S7Y56FUNRYHYUUJUUUUAL6NC3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:S7Y56FUNRYHYUUJUUUUAL6NC3H","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":"434d91b1d8d2deab83a5fd85415071b75af89a02eba94afc995af6fd4043f245","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-10-31T17:22:35Z","title_canon_sha256":"a594aebabe82ccc1b122eac1a4db840101b76edfaae0c3fe3d3e0dad024af7b9"},"schema_version":"1.0","source":{"id":"1511.00153","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.00153","created_at":"2026-05-18T01:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"1511.00153v2","created_at":"2026-05-18T01:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.00153","created_at":"2026-05-18T01:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"S7Y56FUNRYHY","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"S7Y56FUNRYHYUUJU","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"S7Y56FUN","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:69f274c5369425286bf5ac5fc1bc74e2c1ad385a323014604e76c962fc76d719","target":"graph","created_at":"2026-05-18T01:21:41Z","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"},"paper":{"abstract_excerpt":"In this analysis, we present the contribution associated with the chromomagnetic dipole operator O_8 to the double differential decay width d\\Gamma/(ds_1 ds_2) for the inclusive process $\\bar{B} \\to X_s \\gamma \\gamma$. The kinematical variables s_1 and s_2 are defined as s_i=(p_b - q_i)^2/m_b^2, where p_b, q_1, q_2 are the momenta of b-quark and two photons. This contribution (taken at tree level) is of order \\alpha_s, like the recently calculated QCD corrections to the contribution of the operator O_7. In order to regulate possible collinear singularities of one of the photons with the strang","authors_text":"A. Kokulu, C. Greub, H. M. Asatrian","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-10-31T17:22:35Z","title":"(O_8, O_8) contribution to $\\bar{B} \\to X_s \\gamma \\gamma$ at O(\\alpha_s)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.00153","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:cff8462409a45baa49926e11af70a8a8606ef510d18e647ec4512d0eb20c752b","target":"record","created_at":"2026-05-18T01:21:41Z","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":"434d91b1d8d2deab83a5fd85415071b75af89a02eba94afc995af6fd4043f245","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2015-10-31T17:22:35Z","title_canon_sha256":"a594aebabe82ccc1b122eac1a4db840101b76edfaae0c3fe3d3e0dad024af7b9"},"schema_version":"1.0","source":{"id":"1511.00153","kind":"arxiv","version":2}},"canonical_sha256":"97f1df168d8e0f8a5134a52805f9a2d9f9c2a9abccd32b5530bc14df7203c06f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97f1df168d8e0f8a5134a52805f9a2d9f9c2a9abccd32b5530bc14df7203c06f","first_computed_at":"2026-05-18T01:21:41.671744Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:41.671744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tLatGZD/6ljMGGFbjeJWqgnJdpFIPAIKHlcoKP3hFfPnE1KteoUd20pfmn/GIQQkvo4iYPXohwyEcQzspsyzAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:41.672344Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.00153","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cff8462409a45baa49926e11af70a8a8606ef510d18e647ec4512d0eb20c752b","sha256:69f274c5369425286bf5ac5fc1bc74e2c1ad385a323014604e76c962fc76d719"],"state_sha256":"5fa6f9f15444b1bb3ca1af2285b3486cd9b1830f3e02d7bd69ac8517cc30f793"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dqkf2E50evuR0y2qkg2/T+MgnyrOC6HpxRDfjP3BUgsO1CdC7PYBKtyMnOPntlBtl8hHmOTfUmLPRMX0+9AXBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:52:19.311980Z","bundle_sha256":"0de6e9c1e6c2b6b92361b951493ab379731d2af401afc02ee35da5040266eb28"}}