{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UY46PXBMAHBZ6YFEEDX3OA6UTL","short_pith_number":"pith:UY46PXBM","canonical_record":{"source":{"id":"1505.01752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-07T15:50:23Z","cross_cats_sorted":["astro-ph.SR","physics.ins-det"],"title_canon_sha256":"96b37a2526c5fde4e4e56dc7286b91e96385570c06bb1f3f4334f1831188c91a","abstract_canon_sha256":"72646b4189068cdeb782751ab1ba50550ca2b160a83c3d0a292d1b811e9310b9"},"schema_version":"1.0"},"canonical_sha256":"a639e7dc2c01c39f60a420efb703d49aefcb0f4dc10932f38ae8da0a28c627c7","source":{"kind":"arxiv","id":"1505.01752","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01752","created_at":"2026-05-18T00:57:32Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01752v1","created_at":"2026-05-18T00:57:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01752","created_at":"2026-05-18T00:57:32Z"},{"alias_kind":"pith_short_12","alias_value":"UY46PXBMAHBZ","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UY46PXBMAHBZ6YFE","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UY46PXBM","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UY46PXBMAHBZ6YFEEDX3OA6UTL","target":"record","payload":{"canonical_record":{"source":{"id":"1505.01752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-07T15:50:23Z","cross_cats_sorted":["astro-ph.SR","physics.ins-det"],"title_canon_sha256":"96b37a2526c5fde4e4e56dc7286b91e96385570c06bb1f3f4334f1831188c91a","abstract_canon_sha256":"72646b4189068cdeb782751ab1ba50550ca2b160a83c3d0a292d1b811e9310b9"},"schema_version":"1.0"},"canonical_sha256":"a639e7dc2c01c39f60a420efb703d49aefcb0f4dc10932f38ae8da0a28c627c7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:32.048226Z","signature_b64":"Fn707XmbQ2fIb0ttIrGS0ClhtZkIn+hdPUPwJYNM+SImM+RPsWC7NpiEFEkdPIrwJBNvTkeY5pnkZheiLKPhDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a639e7dc2c01c39f60a420efb703d49aefcb0f4dc10932f38ae8da0a28c627c7","last_reissued_at":"2026-05-18T00:57:32.047835Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:32.047835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.01752","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":"2026-05-18T00:57:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FFXRLvlpMSU287D5m5AEF5RYrSZIY0TrI9WcibHNyko473UNKHgAluqX6PVzSTMwAgx/aMusVxFyZjven2wGDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:47:43.518942Z"},"content_sha256":"0f864a6cdc2c54280e7860532c1c881b102fe313902aac6d27fd02de61e5a3e3","schema_version":"1.0","event_id":"sha256:0f864a6cdc2c54280e7860532c1c881b102fe313902aac6d27fd02de61e5a3e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UY46PXBMAHBZ6YFEEDX3OA6UTL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Results of a search for daily and annual variations of the Po-214 half-life at the two year observation period","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","physics.ins-det"],"primary_cat":"nucl-ex","authors_text":"A.M. Gangapshev, E.N. Alexeyev, S.I. Panasenko, S.S. Ratkevich, V.V. Kazalov, V.V. Kuzminov, Yu.M. Gavrilyuk","submitted_at":"2015-05-07T15:50:23Z","abstract_excerpt":"The brief description of installation TAU-2 intended for long-term monitoring of the half-life value $\\tau$ ($\\tau_{1/2}$) of the $^{214}$Po is presented. The methods of measurement and processing of collected data are reported. The results of analysis of time series values $\\tau$ with different time step are presented. Total of measurement time was equal to 590 days. Averaged value of the $^{214}$Po half-life was obtained $\\tau=163.46\\pm0.04$ $\\mu$s. The annual variation with an amplitude $A=(8.9\\pm2.3)\\cdot10^{-4}$, solar-daily variation with an amplitude $A_{So}=(7.5\\pm1.2)\\cdot10^{-4}$, lu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01752","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":""},"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":"2026-05-18T00:57:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oPvXylIPbou/pBGKYs9uXtMK0LzD6d7BHxr/C7t+5pRRR+y3wpkbS57wneVvDTEcpEkBkULXnJvSoO4EBkAtCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:47:43.519595Z"},"content_sha256":"1a34995afe4139653fff822c074ad4070180d3f3691c69823ada14e6fb2b344b","schema_version":"1.0","event_id":"sha256:1a34995afe4139653fff822c074ad4070180d3f3691c69823ada14e6fb2b344b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL/bundle.json","state_url":"https://pith.science/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL/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":"2026-05-29T22:47:43Z","links":{"resolver":"https://pith.science/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL","bundle":"https://pith.science/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL/bundle.json","state":"https://pith.science/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UY46PXBMAHBZ6YFEEDX3OA6UTL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UY46PXBMAHBZ6YFEEDX3OA6UTL","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":"72646b4189068cdeb782751ab1ba50550ca2b160a83c3d0a292d1b811e9310b9","cross_cats_sorted":["astro-ph.SR","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-07T15:50:23Z","title_canon_sha256":"96b37a2526c5fde4e4e56dc7286b91e96385570c06bb1f3f4334f1831188c91a"},"schema_version":"1.0","source":{"id":"1505.01752","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.01752","created_at":"2026-05-18T00:57:32Z"},{"alias_kind":"arxiv_version","alias_value":"1505.01752v1","created_at":"2026-05-18T00:57:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.01752","created_at":"2026-05-18T00:57:32Z"},{"alias_kind":"pith_short_12","alias_value":"UY46PXBMAHBZ","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UY46PXBMAHBZ6YFE","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UY46PXBM","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:1a34995afe4139653fff822c074ad4070180d3f3691c69823ada14e6fb2b344b","target":"graph","created_at":"2026-05-18T00:57:32Z","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":"The brief description of installation TAU-2 intended for long-term monitoring of the half-life value $\\tau$ ($\\tau_{1/2}$) of the $^{214}$Po is presented. The methods of measurement and processing of collected data are reported. The results of analysis of time series values $\\tau$ with different time step are presented. Total of measurement time was equal to 590 days. Averaged value of the $^{214}$Po half-life was obtained $\\tau=163.46\\pm0.04$ $\\mu$s. The annual variation with an amplitude $A=(8.9\\pm2.3)\\cdot10^{-4}$, solar-daily variation with an amplitude $A_{So}=(7.5\\pm1.2)\\cdot10^{-4}$, lu","authors_text":"A.M. Gangapshev, E.N. Alexeyev, S.I. Panasenko, S.S. Ratkevich, V.V. Kazalov, V.V. Kuzminov, Yu.M. Gavrilyuk","cross_cats":["astro-ph.SR","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-07T15:50:23Z","title":"Results of a search for daily and annual variations of the Po-214 half-life at the two year observation period"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.01752","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":"sha256:0f864a6cdc2c54280e7860532c1c881b102fe313902aac6d27fd02de61e5a3e3","target":"record","created_at":"2026-05-18T00:57:32Z","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":"72646b4189068cdeb782751ab1ba50550ca2b160a83c3d0a292d1b811e9310b9","cross_cats_sorted":["astro-ph.SR","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-07T15:50:23Z","title_canon_sha256":"96b37a2526c5fde4e4e56dc7286b91e96385570c06bb1f3f4334f1831188c91a"},"schema_version":"1.0","source":{"id":"1505.01752","kind":"arxiv","version":1}},"canonical_sha256":"a639e7dc2c01c39f60a420efb703d49aefcb0f4dc10932f38ae8da0a28c627c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a639e7dc2c01c39f60a420efb703d49aefcb0f4dc10932f38ae8da0a28c627c7","first_computed_at":"2026-05-18T00:57:32.047835Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:32.047835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fn707XmbQ2fIb0ttIrGS0ClhtZkIn+hdPUPwJYNM+SImM+RPsWC7NpiEFEkdPIrwJBNvTkeY5pnkZheiLKPhDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:32.048226Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.01752","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f864a6cdc2c54280e7860532c1c881b102fe313902aac6d27fd02de61e5a3e3","sha256:1a34995afe4139653fff822c074ad4070180d3f3691c69823ada14e6fb2b344b"],"state_sha256":"8f3a0a6710ecfeed5d4776b13f5e05bd3d908d7d99378bf5e8ef1f0f4386969c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fhH5b8sRl6y69LjVi8YeglNNivPSyqA8fgJZZhBF9Bb+jRgEjXtQb/Egi3pNx4jevmbXOi/JxKZ/7+PeNeU0Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T22:47:43.522492Z","bundle_sha256":"3b35b237f3cd0acdedc0fcd0dfb1eb7b7f79695d4ee44b230de52668bf08be14"}}