{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:Z5HDBRNYF5GRDGZ2XKFLJSOTMK","short_pith_number":"pith:Z5HDBRNY","canonical_record":{"source":{"id":"2306.10057","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-06-14T10:48:36Z","cross_cats_sorted":["hep-ex","hep-ph"],"title_canon_sha256":"80cd8b5897eda9250f988b598928b3c0ad0dd8c9126bb154377a900032684759","abstract_canon_sha256":"1c1a523c6f6076f10125e2d1a13dbb6b6fde59a156c567dfbe0c5c3a7dac3d31"},"schema_version":"1.0"},"canonical_sha256":"cf4e30c5b82f4d119b3aba8ab4c9d362be0e834f034b9a9ded1bfddec00d9493","source":{"kind":"arxiv","id":"2306.10057","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.10057","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"arxiv_version","alias_value":"2306.10057v2","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.10057","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"pith_short_12","alias_value":"Z5HDBRNYF5GR","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"pith_short_16","alias_value":"Z5HDBRNYF5GRDGZ2","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"pith_short_8","alias_value":"Z5HDBRNY","created_at":"2026-07-05T06:34:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:Z5HDBRNYF5GRDGZ2XKFLJSOTMK","target":"record","payload":{"canonical_record":{"source":{"id":"2306.10057","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-06-14T10:48:36Z","cross_cats_sorted":["hep-ex","hep-ph"],"title_canon_sha256":"80cd8b5897eda9250f988b598928b3c0ad0dd8c9126bb154377a900032684759","abstract_canon_sha256":"1c1a523c6f6076f10125e2d1a13dbb6b6fde59a156c567dfbe0c5c3a7dac3d31"},"schema_version":"1.0"},"canonical_sha256":"cf4e30c5b82f4d119b3aba8ab4c9d362be0e834f034b9a9ded1bfddec00d9493","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:34:37.427147Z","signature_b64":"XPO6s8A69OlNCDGTT5B+1WfGviPUNeOAQB0xXg2n28dwS8bMKelT/txQjIDYlGmTZrksVy/b2de8c2jpBDWGBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf4e30c5b82f4d119b3aba8ab4c9d362be0e834f034b9a9ded1bfddec00d9493","last_reissued_at":"2026-07-05T06:34:37.426664Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:34:37.426664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2306.10057","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":"2026-07-05T06:34:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O+BBfu27s35Q4Tn7DcI3Y7aFqP2nJXdYBuDpYXSr+RUUYDrDWQOokCv4pU37JDv9ArEbUocEf5i1ssUr0JdDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:24:29.083796Z"},"content_sha256":"0093fe534ac374fd3dde36970f2634bcc55fc7d36ad6ef88ca33ac3fa0e7cf2e","schema_version":"1.0","event_id":"sha256:0093fe534ac374fd3dde36970f2634bcc55fc7d36ad6ef88ca33ac3fa0e7cf2e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:Z5HDBRNYF5GRDGZ2XKFLJSOTMK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"XCC: An X-ray FEL-based $\\gamma\\gamma$ Compton Collider Higgs Factory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","hep-ph"],"primary_cat":"physics.acc-ph","authors_text":"A. Naji, A. Schwartzman, C. Emma, E. Nanni, G. White (SLAC National Accelerator Laboratory), S. Tantawi, T. Barklow, Z. Huang","submitted_at":"2023-06-14T10:48:36Z","abstract_excerpt":"This report describes the conceptual design of a $\\gamma\\gamma$ Higgs factory in which 62.8 GeV electron beams collide with 1 keV X-ray free electron laser (XFEL) beams to produce colliding beams of 62.5 GeV photons. The Higgs boson production rate is 80,000 Higgs bosons per 10$^7$ second year, roughly the same as the ILC Higgs rate at $\\sqrt{s}$=250 GeV. The electron accelerator is based on cold copper distributed coupling (C$^3$) accelerator technology. Unlike the center-of-mass energy spectra of previous optical wavelength $\\gamma\\gamma$ collider designs, the sharply peaked $\\gamma\\gamma$ c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.10057","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/2306.10057/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":"2026-07-05T06:34:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BAD1UPqejAQ8/0XBKG6B9BaAmCPpAO+yWFAhrTJOnFPUnoOVmar4g8dRzxSjEdEwZDoF/AYEBkg75U/Ifji+CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:24:29.084179Z"},"content_sha256":"e38a9a360d6d2bf9038bf2698eaa7fb15465c6d844b292d2cae640dfe27bb03e","schema_version":"1.0","event_id":"sha256:e38a9a360d6d2bf9038bf2698eaa7fb15465c6d844b292d2cae640dfe27bb03e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK/bundle.json","state_url":"https://pith.science/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK/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":"2026-07-06T17:24:29Z","links":{"resolver":"https://pith.science/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK","bundle":"https://pith.science/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK/bundle.json","state":"https://pith.science/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z5HDBRNYF5GRDGZ2XKFLJSOTMK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:Z5HDBRNYF5GRDGZ2XKFLJSOTMK","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":"1c1a523c6f6076f10125e2d1a13dbb6b6fde59a156c567dfbe0c5c3a7dac3d31","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-06-14T10:48:36Z","title_canon_sha256":"80cd8b5897eda9250f988b598928b3c0ad0dd8c9126bb154377a900032684759"},"schema_version":"1.0","source":{"id":"2306.10057","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.10057","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"arxiv_version","alias_value":"2306.10057v2","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.10057","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"pith_short_12","alias_value":"Z5HDBRNYF5GR","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"pith_short_16","alias_value":"Z5HDBRNYF5GRDGZ2","created_at":"2026-07-05T06:34:37Z"},{"alias_kind":"pith_short_8","alias_value":"Z5HDBRNY","created_at":"2026-07-05T06:34:37Z"}],"graph_snapshots":[{"event_id":"sha256:e38a9a360d6d2bf9038bf2698eaa7fb15465c6d844b292d2cae640dfe27bb03e","target":"graph","created_at":"2026-07-05T06:34:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2306.10057/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This report describes the conceptual design of a $\\gamma\\gamma$ Higgs factory in which 62.8 GeV electron beams collide with 1 keV X-ray free electron laser (XFEL) beams to produce colliding beams of 62.5 GeV photons. The Higgs boson production rate is 80,000 Higgs bosons per 10$^7$ second year, roughly the same as the ILC Higgs rate at $\\sqrt{s}$=250 GeV. The electron accelerator is based on cold copper distributed coupling (C$^3$) accelerator technology. Unlike the center-of-mass energy spectra of previous optical wavelength $\\gamma\\gamma$ collider designs, the sharply peaked $\\gamma\\gamma$ c","authors_text":"A. Naji, A. Schwartzman, C. Emma, E. Nanni, G. White (SLAC National Accelerator Laboratory), S. Tantawi, T. Barklow, Z. Huang","cross_cats":["hep-ex","hep-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-06-14T10:48:36Z","title":"XCC: An X-ray FEL-based $\\gamma\\gamma$ Compton Collider Higgs Factory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.10057","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":"sha256:0093fe534ac374fd3dde36970f2634bcc55fc7d36ad6ef88ca33ac3fa0e7cf2e","target":"record","created_at":"2026-07-05T06:34:37Z","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":"1c1a523c6f6076f10125e2d1a13dbb6b6fde59a156c567dfbe0c5c3a7dac3d31","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-06-14T10:48:36Z","title_canon_sha256":"80cd8b5897eda9250f988b598928b3c0ad0dd8c9126bb154377a900032684759"},"schema_version":"1.0","source":{"id":"2306.10057","kind":"arxiv","version":2}},"canonical_sha256":"cf4e30c5b82f4d119b3aba8ab4c9d362be0e834f034b9a9ded1bfddec00d9493","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf4e30c5b82f4d119b3aba8ab4c9d362be0e834f034b9a9ded1bfddec00d9493","first_computed_at":"2026-07-05T06:34:37.426664Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:34:37.426664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XPO6s8A69OlNCDGTT5B+1WfGviPUNeOAQB0xXg2n28dwS8bMKelT/txQjIDYlGmTZrksVy/b2de8c2jpBDWGBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:34:37.427147Z","signed_message":"canonical_sha256_bytes"},"source_id":"2306.10057","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0093fe534ac374fd3dde36970f2634bcc55fc7d36ad6ef88ca33ac3fa0e7cf2e","sha256:e38a9a360d6d2bf9038bf2698eaa7fb15465c6d844b292d2cae640dfe27bb03e"],"state_sha256":"d0a0bae65144aefd491a2286fa7d7ca902da939281f8e7c85ebe81921ee3a854"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"npSyjZkLunYyQ81WSRrShH3x8RdHqA0zh+DRkSownubAhZjwMwW3n0Cwt4N5Duat3bZoHmSYovsf3/KmSNMKAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T17:24:29.086241Z","bundle_sha256":"efe6e8d53b857a55af1feaf1e7ed931b3a3762f9edfba2d90e475d810bf92f10"}}