{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:2IU355S44QSIQ327FISOQTH7KR","short_pith_number":"pith:2IU355S4","canonical_record":{"source":{"id":"2503.08807","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-03-11T18:35:51Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"da30c5319c9b473d4e951d281c3d28c88af9c90e5385e0f1635aa4c3a31a9b0a","abstract_canon_sha256":"70a9f316401544a6c67907b0f028356c752cea79ed348aa11041d031e3c9da72"},"schema_version":"1.0"},"canonical_sha256":"d229bef65ce424886f5f2a24e84cff5446f96ba93312c19c3486c9d98b647be4","source":{"kind":"arxiv","id":"2503.08807","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.08807","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"arxiv_version","alias_value":"2503.08807v1","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.08807","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"pith_short_12","alias_value":"2IU355S44QSI","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"pith_short_16","alias_value":"2IU355S44QSIQ327","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"pith_short_8","alias_value":"2IU355S4","created_at":"2026-07-05T10:29:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:2IU355S44QSIQ327FISOQTH7KR","target":"record","payload":{"canonical_record":{"source":{"id":"2503.08807","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-03-11T18:35:51Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"da30c5319c9b473d4e951d281c3d28c88af9c90e5385e0f1635aa4c3a31a9b0a","abstract_canon_sha256":"70a9f316401544a6c67907b0f028356c752cea79ed348aa11041d031e3c9da72"},"schema_version":"1.0"},"canonical_sha256":"d229bef65ce424886f5f2a24e84cff5446f96ba93312c19c3486c9d98b647be4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:29:41.379380Z","signature_b64":"+DjZQtgLvDJZN9mhx3AguYHvTi1X3fjimKU1XCSI04F1bf2Eqngm7AfcRi+/2N7SE3xBhS/Vn1szBGRv1KrAAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d229bef65ce424886f5f2a24e84cff5446f96ba93312c19c3486c9d98b647be4","last_reissued_at":"2026-07-05T10:29:41.378331Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:29:41.378331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.08807","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":"2026-07-05T10:29:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P0OmCzhrdBFgtMh/htkeJ0jBnEuy+TSoAbraFCDgIZRj7YAv9XKIVbSGNMfPFgZ0TIOjdBHEsZLdsExcKbgUAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:06:29.755789Z"},"content_sha256":"d41af2435ccc4b991cf2f069d9403d01aee5088e83c4a26223e2c4b1afaafbb9","schema_version":"1.0","event_id":"sha256:d41af2435ccc4b991cf2f069d9403d01aee5088e83c4a26223e2c4b1afaafbb9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:2IU355S44QSIQ327FISOQTH7KR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Project 8 Apparatus for Cyclotron Radiation Emission Spectroscopy with $^\\mathrm{83m}$Kr and Tritium","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Ashtari Esfahani, A. B. Telles, A. Lindman, A. M. Jones, A. Ziegler, B. A. VanDevender, B. H. LaRoque, B. Monreal, C. Claessens, D. Furse, D. M. Asner, D. Rysewyk, E. C. Morrison, E. L. McBride, E. Machado, E. Novitski, E. Zayas, F. Thomas, G. Rybka, J. A. Formaggio, J. A. Kofron, J. A. Nikkel, J. Hartse, J. L. Fernandes, J. R. Tedeschi, J. Weintroub, K. M. Heeger, L. de Viveiros, L. Gladstone, L. Salda\\~na, L. Tvrznikova, M. Fertl, M. G. Sternberg, M. Guigue, M. Ottiger, M. Thomas, M. Wachtendonk, M. Walter, N. Buzinsky, N. L. Woods, N. S. Oblath, P. J. Doe, P. L. Slocum, P. MohanMurthy, P. T. Surukuchi, R. Cervantes, R. G. H. Robertson, R. Mohiuddin, R. Reimann, S. B\\\"oser, T. E. Weiss, T. Th\\\"ummler, T. Wendler, W. Pettus, X. Huyan, Y. H. Sun","submitted_at":"2025-03-11T18:35:51Z","abstract_excerpt":"Cyclotron Radiation Emission Spectroscopy (CRES) is a novel technique for the precise measurement of relativistic electron energy. This technique is being employed by the Project~8 collaboration for measuring a high-precision tritium beta decay spectrum to perform a frequency-based measurement of the neutrino mass. In this work, we describe the Project 8 Phase II apparatus, used for the detection of the CRES signal from the conversion electrons of $\\mathrm{^{83m}Kr}$ and the first CRES measurement of the beta-decay spectrum of molecular tritium."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.08807","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/2503.08807/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":"2026-07-05T10:29:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j60nI6EKPZKRw//IJfjFEEMu5KM9C9sjbVRqsCfHwBGjltoshr2ICfVYJRNnGIA9yJOFVrxh3f0xjttoZvfjAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:06:29.756183Z"},"content_sha256":"9391484c3d6721c71412fade1e8f0b51f7ef7947e47ca419b459ec2b93bca4e3","schema_version":"1.0","event_id":"sha256:9391484c3d6721c71412fade1e8f0b51f7ef7947e47ca419b459ec2b93bca4e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2IU355S44QSIQ327FISOQTH7KR/bundle.json","state_url":"https://pith.science/pith/2IU355S44QSIQ327FISOQTH7KR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2IU355S44QSIQ327FISOQTH7KR/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":"2026-07-07T14:06:29Z","links":{"resolver":"https://pith.science/pith/2IU355S44QSIQ327FISOQTH7KR","bundle":"https://pith.science/pith/2IU355S44QSIQ327FISOQTH7KR/bundle.json","state":"https://pith.science/pith/2IU355S44QSIQ327FISOQTH7KR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2IU355S44QSIQ327FISOQTH7KR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2IU355S44QSIQ327FISOQTH7KR","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":"70a9f316401544a6c67907b0f028356c752cea79ed348aa11041d031e3c9da72","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-03-11T18:35:51Z","title_canon_sha256":"da30c5319c9b473d4e951d281c3d28c88af9c90e5385e0f1635aa4c3a31a9b0a"},"schema_version":"1.0","source":{"id":"2503.08807","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.08807","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"arxiv_version","alias_value":"2503.08807v1","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.08807","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"pith_short_12","alias_value":"2IU355S44QSI","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"pith_short_16","alias_value":"2IU355S44QSIQ327","created_at":"2026-07-05T10:29:41Z"},{"alias_kind":"pith_short_8","alias_value":"2IU355S4","created_at":"2026-07-05T10:29:41Z"}],"graph_snapshots":[{"event_id":"sha256:9391484c3d6721c71412fade1e8f0b51f7ef7947e47ca419b459ec2b93bca4e3","target":"graph","created_at":"2026-07-05T10:29:41Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2503.08807/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cyclotron Radiation Emission Spectroscopy (CRES) is a novel technique for the precise measurement of relativistic electron energy. This technique is being employed by the Project~8 collaboration for measuring a high-precision tritium beta decay spectrum to perform a frequency-based measurement of the neutrino mass. In this work, we describe the Project 8 Phase II apparatus, used for the detection of the CRES signal from the conversion electrons of $\\mathrm{^{83m}Kr}$ and the first CRES measurement of the beta-decay spectrum of molecular tritium.","authors_text":"A. Ashtari Esfahani, A. B. Telles, A. Lindman, A. M. Jones, A. Ziegler, B. A. VanDevender, B. H. LaRoque, B. Monreal, C. Claessens, D. Furse, D. M. Asner, D. Rysewyk, E. C. Morrison, E. L. McBride, E. Machado, E. Novitski, E. Zayas, F. Thomas, G. Rybka, J. A. Formaggio, J. A. Kofron, J. A. Nikkel, J. Hartse, J. L. Fernandes, J. R. Tedeschi, J. Weintroub, K. M. Heeger, L. de Viveiros, L. Gladstone, L. Salda\\~na, L. Tvrznikova, M. Fertl, M. G. Sternberg, M. Guigue, M. Ottiger, M. Thomas, M. Wachtendonk, M. Walter, N. Buzinsky, N. L. Woods, N. S. Oblath, P. J. Doe, P. L. Slocum, P. MohanMurthy, P. T. Surukuchi, R. Cervantes, R. G. H. Robertson, R. Mohiuddin, R. Reimann, S. B\\\"oser, T. E. Weiss, T. Th\\\"ummler, T. Wendler, W. Pettus, X. Huyan, Y. H. Sun","cross_cats":["hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-03-11T18:35:51Z","title":"Project 8 Apparatus for Cyclotron Radiation Emission Spectroscopy with $^\\mathrm{83m}$Kr and Tritium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.08807","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:d41af2435ccc4b991cf2f069d9403d01aee5088e83c4a26223e2c4b1afaafbb9","target":"record","created_at":"2026-07-05T10:29:41Z","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":"70a9f316401544a6c67907b0f028356c752cea79ed348aa11041d031e3c9da72","cross_cats_sorted":["hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2025-03-11T18:35:51Z","title_canon_sha256":"da30c5319c9b473d4e951d281c3d28c88af9c90e5385e0f1635aa4c3a31a9b0a"},"schema_version":"1.0","source":{"id":"2503.08807","kind":"arxiv","version":1}},"canonical_sha256":"d229bef65ce424886f5f2a24e84cff5446f96ba93312c19c3486c9d98b647be4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d229bef65ce424886f5f2a24e84cff5446f96ba93312c19c3486c9d98b647be4","first_computed_at":"2026-07-05T10:29:41.378331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:29:41.378331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+DjZQtgLvDJZN9mhx3AguYHvTi1X3fjimKU1XCSI04F1bf2Eqngm7AfcRi+/2N7SE3xBhS/Vn1szBGRv1KrAAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:29:41.379380Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.08807","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d41af2435ccc4b991cf2f069d9403d01aee5088e83c4a26223e2c4b1afaafbb9","sha256:9391484c3d6721c71412fade1e8f0b51f7ef7947e47ca419b459ec2b93bca4e3"],"state_sha256":"aada1e09e004bd1144ac58ce18f975bab0cd6f51f8ab78b24aa9c0cf4d6f2663"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GbqrTeJy2wEIUxAkuDUz7BggxCgc0tSwTnZ9aWnFq+z4Tb+gY5lAuRzWct8Q6gi5BqO9ch09NXYUhAvSNIhABg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T14:06:29.758226Z","bundle_sha256":"85f57edfcaafd170afe821289c7c9910b523ff43bb35afc9df618b238e9ba230"}}