{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:EJUHF25CCQPXNT4FLSLNUPK7FT","short_pith_number":"pith:EJUHF25C","canonical_record":{"source":{"id":"2405.08534","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-05-14T12:17:28Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"7c36f6ed6ad40b04cde8a5772c34c49183db06034f9532576f36aac315615b41","abstract_canon_sha256":"4095182acdf88de2ebd506bd12503b2ef8c1f4a06f2ab01b1f8aa03c0b902826"},"schema_version":"1.0"},"canonical_sha256":"226872eba2141f76cf855c96da3d5f2cda343d2ffe89fda37c75bbdd9400f2fe","source":{"kind":"arxiv","id":"2405.08534","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.08534","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"arxiv_version","alias_value":"2405.08534v1","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.08534","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"pith_short_12","alias_value":"EJUHF25CCQPX","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"pith_short_16","alias_value":"EJUHF25CCQPXNT4F","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"pith_short_8","alias_value":"EJUHF25C","created_at":"2026-07-05T08:19:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:EJUHF25CCQPXNT4FLSLNUPK7FT","target":"record","payload":{"canonical_record":{"source":{"id":"2405.08534","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-05-14T12:17:28Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"7c36f6ed6ad40b04cde8a5772c34c49183db06034f9532576f36aac315615b41","abstract_canon_sha256":"4095182acdf88de2ebd506bd12503b2ef8c1f4a06f2ab01b1f8aa03c0b902826"},"schema_version":"1.0"},"canonical_sha256":"226872eba2141f76cf855c96da3d5f2cda343d2ffe89fda37c75bbdd9400f2fe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:19:01.836004Z","signature_b64":"y01J4fg+AFLau1Xk0OJ8tsWb6osD2hiH/PDIYmF5F+AQp/IeTa9z3R5Apf6cpm4tz0Wv9IpvhVB6/PWNnHcHAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"226872eba2141f76cf855c96da3d5f2cda343d2ffe89fda37c75bbdd9400f2fe","last_reissued_at":"2026-07-05T08:19:01.835498Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:19:01.835498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.08534","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":"2026-07-05T08:19:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TIe+BkOvY3n2d0uY4CTXvKuv+RYgHWGVTH2uD/N440yzAPoSlE/8nzDT/+95oW0hp5fducQLxJ94JcVodscfAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T14:26:50.099440Z"},"content_sha256":"0eb32d160da64db2cc70a81dcc52aa9632fe30267f8aa88a0945f9474f382f6a","schema_version":"1.0","event_id":"sha256:0eb32d160da64db2cc70a81dcc52aa9632fe30267f8aa88a0945f9474f382f6a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:EJUHF25CCQPXNT4FLSLNUPK7FT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Status of Dark Photons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ph","authors_text":"James M. Cline","submitted_at":"2024-05-14T12:17:28Z","abstract_excerpt":"I review recent developments in the field of dark photons-here taken to be U(1) gauge bosons with mass less than the Z-including both kinetically mixed vectors and those that couple to anomaly-free U(1)'s. Distinctions between Higgs and Stueckelberg masses are highlighted, with discussion of swampland constraints, UV completions, and new experimental search strategies."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.08534","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/2405.08534/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":"2026-07-05T08:19:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7w4ViMyQHWGcSxVYLQ/VwnBKrqx9iKsSpLxKs6TyLPz6iJfTl8buBv46Tk5tUxmcwxJX3ZH4DVMIlaeqh6aXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T14:26:50.099913Z"},"content_sha256":"6cedb9bbebdc1ed6d7d0c86552ad9a6bb62a1109a16ed958fed4d8248c6e5250","schema_version":"1.0","event_id":"sha256:6cedb9bbebdc1ed6d7d0c86552ad9a6bb62a1109a16ed958fed4d8248c6e5250"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJUHF25CCQPXNT4FLSLNUPK7FT/bundle.json","state_url":"https://pith.science/pith/EJUHF25CCQPXNT4FLSLNUPK7FT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJUHF25CCQPXNT4FLSLNUPK7FT/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":"2026-08-14T14:26:50Z","links":{"resolver":"https://pith.science/pith/EJUHF25CCQPXNT4FLSLNUPK7FT","bundle":"https://pith.science/pith/EJUHF25CCQPXNT4FLSLNUPK7FT/bundle.json","state":"https://pith.science/pith/EJUHF25CCQPXNT4FLSLNUPK7FT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJUHF25CCQPXNT4FLSLNUPK7FT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:EJUHF25CCQPXNT4FLSLNUPK7FT","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":"4095182acdf88de2ebd506bd12503b2ef8c1f4a06f2ab01b1f8aa03c0b902826","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-05-14T12:17:28Z","title_canon_sha256":"7c36f6ed6ad40b04cde8a5772c34c49183db06034f9532576f36aac315615b41"},"schema_version":"1.0","source":{"id":"2405.08534","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.08534","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"arxiv_version","alias_value":"2405.08534v1","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.08534","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"pith_short_12","alias_value":"EJUHF25CCQPX","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"pith_short_16","alias_value":"EJUHF25CCQPXNT4F","created_at":"2026-07-05T08:19:01Z"},{"alias_kind":"pith_short_8","alias_value":"EJUHF25C","created_at":"2026-07-05T08:19:01Z"}],"graph_snapshots":[{"event_id":"sha256:6cedb9bbebdc1ed6d7d0c86552ad9a6bb62a1109a16ed958fed4d8248c6e5250","target":"graph","created_at":"2026-07-05T08:19:01Z","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/2405.08534/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"I review recent developments in the field of dark photons-here taken to be U(1) gauge bosons with mass less than the Z-including both kinetically mixed vectors and those that couple to anomaly-free U(1)'s. Distinctions between Higgs and Stueckelberg masses are highlighted, with discussion of swampland constraints, UV completions, and new experimental search strategies.","authors_text":"James M. Cline","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-05-14T12:17:28Z","title":"Status of Dark Photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.08534","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":"sha256:0eb32d160da64db2cc70a81dcc52aa9632fe30267f8aa88a0945f9474f382f6a","target":"record","created_at":"2026-07-05T08:19:01Z","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":"4095182acdf88de2ebd506bd12503b2ef8c1f4a06f2ab01b1f8aa03c0b902826","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-05-14T12:17:28Z","title_canon_sha256":"7c36f6ed6ad40b04cde8a5772c34c49183db06034f9532576f36aac315615b41"},"schema_version":"1.0","source":{"id":"2405.08534","kind":"arxiv","version":1}},"canonical_sha256":"226872eba2141f76cf855c96da3d5f2cda343d2ffe89fda37c75bbdd9400f2fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"226872eba2141f76cf855c96da3d5f2cda343d2ffe89fda37c75bbdd9400f2fe","first_computed_at":"2026-07-05T08:19:01.835498Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:19:01.835498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y01J4fg+AFLau1Xk0OJ8tsWb6osD2hiH/PDIYmF5F+AQp/IeTa9z3R5Apf6cpm4tz0Wv9IpvhVB6/PWNnHcHAA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:19:01.836004Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.08534","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0eb32d160da64db2cc70a81dcc52aa9632fe30267f8aa88a0945f9474f382f6a","sha256:6cedb9bbebdc1ed6d7d0c86552ad9a6bb62a1109a16ed958fed4d8248c6e5250"],"state_sha256":"d28a5b2e2f7c450c974b3999c9d30650fc6b5c9bbd6948d266b3bc02c6f66388"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/BsNP74WqrXEcEB+sQSAaZm0OR+qaUTWfKC4UterOrRSsP3+pX2Y9knQwdBpYgo8f8yxsZMKwIeK0QL9ttg/Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T14:26:50.104276Z","bundle_sha256":"a4b044d405d20d7db301b6ccc015d0b13fa941e02a506c0a1e03baa1c55e4044"}}