{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ANS6W6OUQ3PZEVDPGFLVRMYAYR","short_pith_number":"pith:ANS6W6OU","canonical_record":{"source":{"id":"1609.08761","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-09-28T04:10:14Z","cross_cats_sorted":[],"title_canon_sha256":"faf4084ccc40db4a9d7aa7228d4b10d780c13c79fc1808393fc3e3ed3bab6e92","abstract_canon_sha256":"95b84fc5bcbd142220d9aa778c16a1c42dc49d63784dc620e7bd0385700dffdd"},"schema_version":"1.0"},"canonical_sha256":"0365eb79d486df92546f315758b300c47ee8a93f3610470023e26b41d5d9b96d","source":{"kind":"arxiv","id":"1609.08761","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.08761","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"arxiv_version","alias_value":"1609.08761v1","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.08761","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"pith_short_12","alias_value":"ANS6W6OUQ3PZ","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"ANS6W6OUQ3PZEVDP","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"ANS6W6OU","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ANS6W6OUQ3PZEVDPGFLVRMYAYR","target":"record","payload":{"canonical_record":{"source":{"id":"1609.08761","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-09-28T04:10:14Z","cross_cats_sorted":[],"title_canon_sha256":"faf4084ccc40db4a9d7aa7228d4b10d780c13c79fc1808393fc3e3ed3bab6e92","abstract_canon_sha256":"95b84fc5bcbd142220d9aa778c16a1c42dc49d63784dc620e7bd0385700dffdd"},"schema_version":"1.0"},"canonical_sha256":"0365eb79d486df92546f315758b300c47ee8a93f3610470023e26b41d5d9b96d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:21.962541Z","signature_b64":"80yfyOJQvGBRn5XDe6DwhWCXUbSVVMl6SFfKWt0+JUdHVy+vhFcX4RxUGEAe4nlB9MCFH9k+wixlzsVx2IBgAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0365eb79d486df92546f315758b300c47ee8a93f3610470023e26b41d5d9b96d","last_reissued_at":"2026-05-18T01:01:21.962028Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:21.962028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.08761","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":"2026-05-18T01:01:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AeGqQDXjFQgXFt7SMgKJSWoiQfBxrHioRwu7wzqLfDO9/fHIPebKblHbnFd3SQyfFgKtB0ix+zYwQa20Zod5Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:19:09.404475Z"},"content_sha256":"d993d2a752ae256bbc2e48ff362ecec41a50f5e35ea2f4143c829df33f81d20c","schema_version":"1.0","event_id":"sha256:d993d2a752ae256bbc2e48ff362ecec41a50f5e35ea2f4143c829df33f81d20c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ANS6W6OUQ3PZEVDPGFLVRMYAYR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron Plasmas Cooled by Cyclotron-Cavity Resonance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A.P. Povilus, C. So, E.D. Hunter, F. Robicheaux, I. Martens, J. Fajans, J. S. Wurtele, L.T. Evans, N.D. DeTal, N. Evetts, S. Shanman, W. N. Hardy, X. Wang","submitted_at":"2016-09-28T04:10:14Z","abstract_excerpt":"We observe that high-Q electromagnetic cavity resonances increase the cyclotron cooling rate of pure electron plasmas held in a Penning-Malmberg trap when the electron cyclotron frequency, controlled by tuning the magnetic field, matches the frequency of standing wave modes in the cavity. For certain modes and trapping configurations, this can increase the cooling rate by factors of ten or more. In this paper, we investigate the variation of the cooling rate and equilibrium plasma temperatures over a wide range of parameters, including the plasma density, plasma position, electron number, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.08761","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":"2026-05-18T01:01:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1FQKqhfyLdwkLdtpA9qz6dzih6BVr3LnvYvU4P6OjwyetC7txrzd7mM9At6rwtTuWrtiPk9tHtAoA6b8laVWBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T02:19:09.405148Z"},"content_sha256":"6f08b9814daab99c4080d0c1d77e3da91a0ea8a8d525fccdae4fac67e4648ae8","schema_version":"1.0","event_id":"sha256:6f08b9814daab99c4080d0c1d77e3da91a0ea8a8d525fccdae4fac67e4648ae8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR/bundle.json","state_url":"https://pith.science/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR/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":"2026-05-30T02:19:09Z","links":{"resolver":"https://pith.science/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR","bundle":"https://pith.science/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR/bundle.json","state":"https://pith.science/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ANS6W6OUQ3PZEVDPGFLVRMYAYR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ANS6W6OUQ3PZEVDPGFLVRMYAYR","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":"95b84fc5bcbd142220d9aa778c16a1c42dc49d63784dc620e7bd0385700dffdd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-09-28T04:10:14Z","title_canon_sha256":"faf4084ccc40db4a9d7aa7228d4b10d780c13c79fc1808393fc3e3ed3bab6e92"},"schema_version":"1.0","source":{"id":"1609.08761","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.08761","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"arxiv_version","alias_value":"1609.08761v1","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.08761","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"pith_short_12","alias_value":"ANS6W6OUQ3PZ","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"ANS6W6OUQ3PZEVDP","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"ANS6W6OU","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:6f08b9814daab99c4080d0c1d77e3da91a0ea8a8d525fccdae4fac67e4648ae8","target":"graph","created_at":"2026-05-18T01:01:21Z","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":"We observe that high-Q electromagnetic cavity resonances increase the cyclotron cooling rate of pure electron plasmas held in a Penning-Malmberg trap when the electron cyclotron frequency, controlled by tuning the magnetic field, matches the frequency of standing wave modes in the cavity. For certain modes and trapping configurations, this can increase the cooling rate by factors of ten or more. In this paper, we investigate the variation of the cooling rate and equilibrium plasma temperatures over a wide range of parameters, including the plasma density, plasma position, electron number, and ","authors_text":"A.P. Povilus, C. So, E.D. Hunter, F. Robicheaux, I. Martens, J. Fajans, J. S. Wurtele, L.T. Evans, N.D. DeTal, N. Evetts, S. Shanman, W. N. Hardy, X. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-09-28T04:10:14Z","title":"Electron Plasmas Cooled by Cyclotron-Cavity Resonance"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.08761","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:d993d2a752ae256bbc2e48ff362ecec41a50f5e35ea2f4143c829df33f81d20c","target":"record","created_at":"2026-05-18T01:01:21Z","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":"95b84fc5bcbd142220d9aa778c16a1c42dc49d63784dc620e7bd0385700dffdd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-09-28T04:10:14Z","title_canon_sha256":"faf4084ccc40db4a9d7aa7228d4b10d780c13c79fc1808393fc3e3ed3bab6e92"},"schema_version":"1.0","source":{"id":"1609.08761","kind":"arxiv","version":1}},"canonical_sha256":"0365eb79d486df92546f315758b300c47ee8a93f3610470023e26b41d5d9b96d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0365eb79d486df92546f315758b300c47ee8a93f3610470023e26b41d5d9b96d","first_computed_at":"2026-05-18T01:01:21.962028Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:21.962028Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"80yfyOJQvGBRn5XDe6DwhWCXUbSVVMl6SFfKWt0+JUdHVy+vhFcX4RxUGEAe4nlB9MCFH9k+wixlzsVx2IBgAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:21.962541Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.08761","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d993d2a752ae256bbc2e48ff362ecec41a50f5e35ea2f4143c829df33f81d20c","sha256:6f08b9814daab99c4080d0c1d77e3da91a0ea8a8d525fccdae4fac67e4648ae8"],"state_sha256":"7ddfcf12639ef2fd4928a049acdbfaa2e770b3412b0d393145026094d3e8f5f5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AqQNNkYN70HUA+ZlWZG6ch23ARSirFD7NwIu7tVMRQqPUa0PFMAYwepiFl2C9y+5hPAHreRyjr53mQu3YhIkBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T02:19:09.408985Z","bundle_sha256":"5b4344d583c2ebf3a07bc679e8d8265829ab8757213f64865d3d65fd1d886877"}}