{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:QNC7RTZNQFWH5VMH3QWFLA6HDT","short_pith_number":"pith:QNC7RTZN","canonical_record":{"source":{"id":"2404.18993","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-04-29T18:00:00Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"ec468b536247a487beeb93c94725555a98477cfd9c7a043db4babe190c839fc7","abstract_canon_sha256":"03ce0e963ba98f5a32ae2cce65f3c1094a8d6b59c592c7ee8d1942214b2570fe"},"schema_version":"1.0"},"canonical_sha256":"8345f8cf2d816c7ed587dc2c5583c71cfab9f871f1da3a934ad80d97a1a0bdb1","source":{"kind":"arxiv","id":"2404.18993","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.18993","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"arxiv_version","alias_value":"2404.18993v2","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.18993","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"pith_short_12","alias_value":"QNC7RTZNQFWH","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"pith_short_16","alias_value":"QNC7RTZNQFWH5VMH","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"pith_short_8","alias_value":"QNC7RTZN","created_at":"2026-07-05T08:36:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:QNC7RTZNQFWH5VMH3QWFLA6HDT","target":"record","payload":{"canonical_record":{"source":{"id":"2404.18993","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-04-29T18:00:00Z","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"title_canon_sha256":"ec468b536247a487beeb93c94725555a98477cfd9c7a043db4babe190c839fc7","abstract_canon_sha256":"03ce0e963ba98f5a32ae2cce65f3c1094a8d6b59c592c7ee8d1942214b2570fe"},"schema_version":"1.0"},"canonical_sha256":"8345f8cf2d816c7ed587dc2c5583c71cfab9f871f1da3a934ad80d97a1a0bdb1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:36:26.196181Z","signature_b64":"tonW5EdxSyndIUHrmjZV9ahNcM+fSb3wicGpHRjI184O3Zoxn06d6zjwmJJyCxxgmz8av8p4Ebwn2uybZP9RBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8345f8cf2d816c7ed587dc2c5583c71cfab9f871f1da3a934ad80d97a1a0bdb1","last_reissued_at":"2026-07-05T08:36:26.195758Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:36:26.195758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.18993","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":"2026-07-05T08:36:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mOeTcdGxtILpc4Y4KrbmfT+1NNWpyAR7vWSPzldX9fhQEFFu73wMrlE3DAJ1zt+IpoZbkV8XSth0Ud7PggqMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T23:10:43.270535Z"},"content_sha256":"4b238fc8b263c87afd7fcb7c018846efa0cb36430ac723b012a5106ac88d75fe","schema_version":"1.0","event_id":"sha256:4b238fc8b263c87afd7fcb7c018846efa0cb36430ac723b012a5106ac88d75fe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:QNC7RTZNQFWH5VMH3QWFLA6HDT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Alpha radioactivity deep-underground as a probe of axion dark matter","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","nucl-ex","nucl-th"],"primary_cat":"hep-ph","authors_text":"Carlo Broggini, Claudio Toni, Giuseppe Di Carlo, Luca Di Luzio","submitted_at":"2024-04-29T18:00:00Z","abstract_excerpt":"We propose to investigate the time modulation of radioisotope decays deep underground as a method to explore axion dark matter. In this work, we focus on the $\\alpha$-decay of heavy isotopes and develop a theoretical description for the $\\theta$-dependence of $\\alpha$-decay half-lives, which enables us to predict the time variation of $\\alpha$-radioactivity in response to an oscillating axion dark matter background. To probe this scenario, we have recently constructed and installed a setup deep underground at the Gran Sasso Laboratory, based on the $\\alpha$-decay of Americium-241. This prototy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.18993","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/2404.18993/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":"2026-07-05T08:36:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"scTo6ElKYHrPcoeAiZSeF5or9hFzWj9O1fev8NYJItgoA4FxZj8/ArjmXFEgoPS8Vs2jdnkkDFKU0SiD50YTDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T23:10:43.271041Z"},"content_sha256":"70801949292462ecdae3900319b408d1eeb226a19fcb7165234544e8bd8bc70a","schema_version":"1.0","event_id":"sha256:70801949292462ecdae3900319b408d1eeb226a19fcb7165234544e8bd8bc70a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT/bundle.json","state_url":"https://pith.science/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT/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":"2026-08-08T23:10:43Z","links":{"resolver":"https://pith.science/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT","bundle":"https://pith.science/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT/bundle.json","state":"https://pith.science/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QNC7RTZNQFWH5VMH3QWFLA6HDT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:QNC7RTZNQFWH5VMH3QWFLA6HDT","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":"03ce0e963ba98f5a32ae2cce65f3c1094a8d6b59c592c7ee8d1942214b2570fe","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-04-29T18:00:00Z","title_canon_sha256":"ec468b536247a487beeb93c94725555a98477cfd9c7a043db4babe190c839fc7"},"schema_version":"1.0","source":{"id":"2404.18993","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.18993","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"arxiv_version","alias_value":"2404.18993v2","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.18993","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"pith_short_12","alias_value":"QNC7RTZNQFWH","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"pith_short_16","alias_value":"QNC7RTZNQFWH5VMH","created_at":"2026-07-05T08:36:26Z"},{"alias_kind":"pith_short_8","alias_value":"QNC7RTZN","created_at":"2026-07-05T08:36:26Z"}],"graph_snapshots":[{"event_id":"sha256:70801949292462ecdae3900319b408d1eeb226a19fcb7165234544e8bd8bc70a","target":"graph","created_at":"2026-07-05T08:36:26Z","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/2404.18993/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose to investigate the time modulation of radioisotope decays deep underground as a method to explore axion dark matter. In this work, we focus on the $\\alpha$-decay of heavy isotopes and develop a theoretical description for the $\\theta$-dependence of $\\alpha$-decay half-lives, which enables us to predict the time variation of $\\alpha$-radioactivity in response to an oscillating axion dark matter background. To probe this scenario, we have recently constructed and installed a setup deep underground at the Gran Sasso Laboratory, based on the $\\alpha$-decay of Americium-241. This prototy","authors_text":"Carlo Broggini, Claudio Toni, Giuseppe Di Carlo, Luca Di Luzio","cross_cats":["hep-ex","nucl-ex","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-04-29T18:00:00Z","title":"Alpha radioactivity deep-underground as a probe of axion dark matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.18993","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":"sha256:4b238fc8b263c87afd7fcb7c018846efa0cb36430ac723b012a5106ac88d75fe","target":"record","created_at":"2026-07-05T08:36:26Z","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":"03ce0e963ba98f5a32ae2cce65f3c1094a8d6b59c592c7ee8d1942214b2570fe","cross_cats_sorted":["hep-ex","nucl-ex","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ph","submitted_at":"2024-04-29T18:00:00Z","title_canon_sha256":"ec468b536247a487beeb93c94725555a98477cfd9c7a043db4babe190c839fc7"},"schema_version":"1.0","source":{"id":"2404.18993","kind":"arxiv","version":2}},"canonical_sha256":"8345f8cf2d816c7ed587dc2c5583c71cfab9f871f1da3a934ad80d97a1a0bdb1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8345f8cf2d816c7ed587dc2c5583c71cfab9f871f1da3a934ad80d97a1a0bdb1","first_computed_at":"2026-07-05T08:36:26.195758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:36:26.195758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tonW5EdxSyndIUHrmjZV9ahNcM+fSb3wicGpHRjI184O3Zoxn06d6zjwmJJyCxxgmz8av8p4Ebwn2uybZP9RBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:36:26.196181Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.18993","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b238fc8b263c87afd7fcb7c018846efa0cb36430ac723b012a5106ac88d75fe","sha256:70801949292462ecdae3900319b408d1eeb226a19fcb7165234544e8bd8bc70a"],"state_sha256":"4ad7f4e5c002983b859c09478d551fe1c90206de2d913d199372a3be3bad1ca7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ycgS0Kt3x1PTFJPlKSQr1vpiPhjQ/OEcXg8x9jM72BbiqEZeqU/JRa74XIBWxA/ZQri09s3S7qiGMYOY12lyAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T23:10:43.275484Z","bundle_sha256":"2be600b102a6ad7b3fb73a51632ca56c33fcced5c2210b6172fea9250f4b5698"}}