{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:VJCPZDW3NH4E3KXALO64NUZERR","short_pith_number":"pith:VJCPZDW3","canonical_record":{"source":{"id":"1908.00350","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-08-01T12:11:26Z","cross_cats_sorted":[],"title_canon_sha256":"6ff5d20fa59e35b42b7d60df1cce59f080952ad1dd16e546a5b15c5d9a3b265b","abstract_canon_sha256":"c2a2a8376a80fea90fa51c4d3d7e281f40e2831f4b94d90f47f88f1cf1f95fba"},"schema_version":"1.0"},"canonical_sha256":"aa44fc8edb69f84daae05bbdc6d3248c4c584059fd1527f7eabf34a36bcb0324","source":{"kind":"arxiv","id":"1908.00350","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00350","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00350v1","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00350","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"pith_short_12","alias_value":"VJCPZDW3NH4E","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"pith_short_16","alias_value":"VJCPZDW3NH4E3KXA","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"pith_short_8","alias_value":"VJCPZDW3","created_at":"2026-07-05T00:45:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:VJCPZDW3NH4E3KXALO64NUZERR","target":"record","payload":{"canonical_record":{"source":{"id":"1908.00350","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-08-01T12:11:26Z","cross_cats_sorted":[],"title_canon_sha256":"6ff5d20fa59e35b42b7d60df1cce59f080952ad1dd16e546a5b15c5d9a3b265b","abstract_canon_sha256":"c2a2a8376a80fea90fa51c4d3d7e281f40e2831f4b94d90f47f88f1cf1f95fba"},"schema_version":"1.0"},"canonical_sha256":"aa44fc8edb69f84daae05bbdc6d3248c4c584059fd1527f7eabf34a36bcb0324","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:45:07.887306Z","signature_b64":"6YcjE/lG62ii+i4ef2fNjS/MOe2qlj6H6OydVaCksjAVckT9pMBHasX9nOMbJtfHJnThtN2Eq7LL+TLg+xJxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa44fc8edb69f84daae05bbdc6d3248c4c584059fd1527f7eabf34a36bcb0324","last_reissued_at":"2026-07-05T00:45:07.886841Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:45:07.886841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.00350","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":"2026-07-05T00:45:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ipAWgSPN1kfO4Z2pgJEKWzDEfLaUnQqnXqVbyMKZgKJslp5sEmsKOExoMlGtkrturU5VqaU2xozoDaF3DCoIAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T23:39:26.301387Z"},"content_sha256":"95a252c8ae1b65d6e744f735d2fc7664b0aa0e92f58a5d8a8f5dce35c451505b","schema_version":"1.0","event_id":"sha256:95a252c8ae1b65d6e744f735d2fc7664b0aa0e92f58a5d8a8f5dce35c451505b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:VJCPZDW3NH4E3KXALO64NUZERR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin dynamics investigations for the EDM experiment at COSY","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"F. Rathmann, J. Slim, N.N. Nikolaev","submitted_at":"2019-08-01T12:11:26Z","abstract_excerpt":"Precision experiments, such as the search for a deuteron electric dipole moments using a storage rings like COSY, demand for an understanding of the spin dynamics with unprecedented accuracy. In such an enterprise, numerical predictions play a crucial role for the development and later application of spin-tracking algorithms. Various measurement concepts involving polarization effects induced by an RF Wien filter and static solenoids in COSY are discussed. The matrix formalism, applied here, deals \\textit{solely} with spin rotations \\textit{on the closed orbit} of the machine, and is intended "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00350","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/1908.00350/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":"2026-07-05T00:45:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uNdtuSndP0eg4dr1mmJClncIm+E6NRzn0754yfSViQYmcR0m4DdeiY79ri++iCMWuRRuxkS5hK1vr4r7i9KfBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T23:39:26.302017Z"},"content_sha256":"ee9ce6fb9a8241b25be7dcd47da3de3b552ae3068951c479d0d08ec35a693b8b","schema_version":"1.0","event_id":"sha256:ee9ce6fb9a8241b25be7dcd47da3de3b552ae3068951c479d0d08ec35a693b8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VJCPZDW3NH4E3KXALO64NUZERR/bundle.json","state_url":"https://pith.science/pith/VJCPZDW3NH4E3KXALO64NUZERR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VJCPZDW3NH4E3KXALO64NUZERR/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":"2026-08-03T23:39:26Z","links":{"resolver":"https://pith.science/pith/VJCPZDW3NH4E3KXALO64NUZERR","bundle":"https://pith.science/pith/VJCPZDW3NH4E3KXALO64NUZERR/bundle.json","state":"https://pith.science/pith/VJCPZDW3NH4E3KXALO64NUZERR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VJCPZDW3NH4E3KXALO64NUZERR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VJCPZDW3NH4E3KXALO64NUZERR","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":"c2a2a8376a80fea90fa51c4d3d7e281f40e2831f4b94d90f47f88f1cf1f95fba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-08-01T12:11:26Z","title_canon_sha256":"6ff5d20fa59e35b42b7d60df1cce59f080952ad1dd16e546a5b15c5d9a3b265b"},"schema_version":"1.0","source":{"id":"1908.00350","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.00350","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"arxiv_version","alias_value":"1908.00350v1","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.00350","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"pith_short_12","alias_value":"VJCPZDW3NH4E","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"pith_short_16","alias_value":"VJCPZDW3NH4E3KXA","created_at":"2026-07-05T00:45:07Z"},{"alias_kind":"pith_short_8","alias_value":"VJCPZDW3","created_at":"2026-07-05T00:45:07Z"}],"graph_snapshots":[{"event_id":"sha256:ee9ce6fb9a8241b25be7dcd47da3de3b552ae3068951c479d0d08ec35a693b8b","target":"graph","created_at":"2026-07-05T00:45:07Z","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/1908.00350/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Precision experiments, such as the search for a deuteron electric dipole moments using a storage rings like COSY, demand for an understanding of the spin dynamics with unprecedented accuracy. In such an enterprise, numerical predictions play a crucial role for the development and later application of spin-tracking algorithms. Various measurement concepts involving polarization effects induced by an RF Wien filter and static solenoids in COSY are discussed. The matrix formalism, applied here, deals \\textit{solely} with spin rotations \\textit{on the closed orbit} of the machine, and is intended ","authors_text":"F. Rathmann, J. Slim, N.N. Nikolaev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-08-01T12:11:26Z","title":"Spin dynamics investigations for the EDM experiment at COSY"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.00350","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":"sha256:95a252c8ae1b65d6e744f735d2fc7664b0aa0e92f58a5d8a8f5dce35c451505b","target":"record","created_at":"2026-07-05T00:45:07Z","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":"c2a2a8376a80fea90fa51c4d3d7e281f40e2831f4b94d90f47f88f1cf1f95fba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-08-01T12:11:26Z","title_canon_sha256":"6ff5d20fa59e35b42b7d60df1cce59f080952ad1dd16e546a5b15c5d9a3b265b"},"schema_version":"1.0","source":{"id":"1908.00350","kind":"arxiv","version":1}},"canonical_sha256":"aa44fc8edb69f84daae05bbdc6d3248c4c584059fd1527f7eabf34a36bcb0324","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa44fc8edb69f84daae05bbdc6d3248c4c584059fd1527f7eabf34a36bcb0324","first_computed_at":"2026-07-05T00:45:07.886841Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:45:07.886841Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6YcjE/lG62ii+i4ef2fNjS/MOe2qlj6H6OydVaCksjAVckT9pMBHasX9nOMbJtfHJnThtN2Eq7LL+TLg+xJxAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:45:07.887306Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.00350","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95a252c8ae1b65d6e744f735d2fc7664b0aa0e92f58a5d8a8f5dce35c451505b","sha256:ee9ce6fb9a8241b25be7dcd47da3de3b552ae3068951c479d0d08ec35a693b8b"],"state_sha256":"8e1c3ea858c63538ddac09b945353edf7f8b75b1dbbef4d63635a52a08f5b945"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3WC5Kf83gDgrkqqavh33KgzwibY3ZRFqZ/aZM+jeqbUKO9zfP+JpcjNT/b1hSc2T3UwiUchGSA2LcEHXv3KzAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T23:39:26.305643Z","bundle_sha256":"dffba157b92e5e9dcb6989c8eab09ac6a197ce32ef1638f3db18bfc75fa25931"}}