{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:P23TUO4KVU2UNQ5LODYEQVXZSB","short_pith_number":"pith:P23TUO4K","canonical_record":{"source":{"id":"1306.6505","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-27T14:09:31Z","cross_cats_sorted":[],"title_canon_sha256":"5981fc887ca5f945d88fb574cf0896d592a8d144736d5815bdda189162d15377","abstract_canon_sha256":"1cc089d73d866d57cf1fdf4f45531ea64b5e400703111be4a0a403f85c02e23d"},"schema_version":"1.0"},"canonical_sha256":"7eb73a3b8aad3546c3ab70f04856f990785146ff75c172ec76faf38c9b1102ca","source":{"kind":"arxiv","id":"1306.6505","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.6505","created_at":"2026-05-18T03:19:44Z"},{"alias_kind":"arxiv_version","alias_value":"1306.6505v1","created_at":"2026-05-18T03:19:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.6505","created_at":"2026-05-18T03:19:44Z"},{"alias_kind":"pith_short_12","alias_value":"P23TUO4KVU2U","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"P23TUO4KVU2UNQ5L","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"P23TUO4K","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:P23TUO4KVU2UNQ5LODYEQVXZSB","target":"record","payload":{"canonical_record":{"source":{"id":"1306.6505","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-27T14:09:31Z","cross_cats_sorted":[],"title_canon_sha256":"5981fc887ca5f945d88fb574cf0896d592a8d144736d5815bdda189162d15377","abstract_canon_sha256":"1cc089d73d866d57cf1fdf4f45531ea64b5e400703111be4a0a403f85c02e23d"},"schema_version":"1.0"},"canonical_sha256":"7eb73a3b8aad3546c3ab70f04856f990785146ff75c172ec76faf38c9b1102ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:44.608082Z","signature_b64":"qQPlpTp3IHdOnaxbtQo7Om8gp7qvkPP9VjSzAljowNnujUw6MbcvkaIRkjk0JhrTwZsH+WLBO2kk/D+eLM0iDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7eb73a3b8aad3546c3ab70f04856f990785146ff75c172ec76faf38c9b1102ca","last_reissued_at":"2026-05-18T03:19:44.607426Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:44.607426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.6505","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":"2026-05-18T03:19:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hD9Jb8JdmmlNT9F3NMMreavmUWcM+M0GKazgwvBtqYLNkJVTT3+WNdg495blTMuOXjYJ2+ggN9V0gWlVj8VnCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:43:22.694358Z"},"content_sha256":"7977a8d1baebb757ad8e9e84870590df43a953c62999517d67a55cae0d0bfe9e","schema_version":"1.0","event_id":"sha256:7977a8d1baebb757ad8e9e84870590df43a953c62999517d67a55cae0d0bfe9e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:P23TUO4KVU2UNQ5LODYEQVXZSB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ion energy measurements on MAST using a midplane RFEA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A. Kirk, M. Ko\\v{c}an, P. Tamain, S. Elmore, S.Y. Allan","submitted_at":"2013-06-27T14:09:31Z","abstract_excerpt":"Ion energy measurements have been made in the scrape off layer of the Mega Amp Spherical Tokamak (MAST) using a midplane retarding field energy analyser (RFEA) in H-mode plasmas during the inter-edge localised mode (ELM) period and during type I and type III ELMs. During the inter-ELM period at distances of 3 to 8 cm from the last closed flux surface (LCFS), ion temperatures of 20 to 70 eV have been measured giving an ion to electron temperature ratio of 2 to 7 with a mean of 4. During type III ELMs, an ion temperature of 50 eV has been measured 3 to 6 cm from the LCFS which decreases to 30 eV"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6505","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":"2026-05-18T03:19:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ZyeDOlH4HMElUFBnmJ1lcuhFIG+K/lIlhSdGmD7BjDr3LB5GE21uY0CghnXcFmJc8F+3t86nT6WEasTzAxRBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:43:22.694744Z"},"content_sha256":"84a9bc0910e451d4a78b2e2d4f31d50b985fcf7fb4fca54a01c3b37be1911870","schema_version":"1.0","event_id":"sha256:84a9bc0910e451d4a78b2e2d4f31d50b985fcf7fb4fca54a01c3b37be1911870"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P23TUO4KVU2UNQ5LODYEQVXZSB/bundle.json","state_url":"https://pith.science/pith/P23TUO4KVU2UNQ5LODYEQVXZSB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P23TUO4KVU2UNQ5LODYEQVXZSB/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":"2026-06-03T05:43:22Z","links":{"resolver":"https://pith.science/pith/P23TUO4KVU2UNQ5LODYEQVXZSB","bundle":"https://pith.science/pith/P23TUO4KVU2UNQ5LODYEQVXZSB/bundle.json","state":"https://pith.science/pith/P23TUO4KVU2UNQ5LODYEQVXZSB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P23TUO4KVU2UNQ5LODYEQVXZSB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:P23TUO4KVU2UNQ5LODYEQVXZSB","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":"1cc089d73d866d57cf1fdf4f45531ea64b5e400703111be4a0a403f85c02e23d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-27T14:09:31Z","title_canon_sha256":"5981fc887ca5f945d88fb574cf0896d592a8d144736d5815bdda189162d15377"},"schema_version":"1.0","source":{"id":"1306.6505","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.6505","created_at":"2026-05-18T03:19:44Z"},{"alias_kind":"arxiv_version","alias_value":"1306.6505v1","created_at":"2026-05-18T03:19:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.6505","created_at":"2026-05-18T03:19:44Z"},{"alias_kind":"pith_short_12","alias_value":"P23TUO4KVU2U","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"P23TUO4KVU2UNQ5L","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"P23TUO4K","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:84a9bc0910e451d4a78b2e2d4f31d50b985fcf7fb4fca54a01c3b37be1911870","target":"graph","created_at":"2026-05-18T03:19:44Z","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":"Ion energy measurements have been made in the scrape off layer of the Mega Amp Spherical Tokamak (MAST) using a midplane retarding field energy analyser (RFEA) in H-mode plasmas during the inter-edge localised mode (ELM) period and during type I and type III ELMs. During the inter-ELM period at distances of 3 to 8 cm from the last closed flux surface (LCFS), ion temperatures of 20 to 70 eV have been measured giving an ion to electron temperature ratio of 2 to 7 with a mean of 4. During type III ELMs, an ion temperature of 50 eV has been measured 3 to 6 cm from the LCFS which decreases to 30 eV","authors_text":"A. Kirk, M. Ko\\v{c}an, P. Tamain, S. Elmore, S.Y. Allan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-27T14:09:31Z","title":"Ion energy measurements on MAST using a midplane RFEA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6505","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":"sha256:7977a8d1baebb757ad8e9e84870590df43a953c62999517d67a55cae0d0bfe9e","target":"record","created_at":"2026-05-18T03:19:44Z","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":"1cc089d73d866d57cf1fdf4f45531ea64b5e400703111be4a0a403f85c02e23d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-06-27T14:09:31Z","title_canon_sha256":"5981fc887ca5f945d88fb574cf0896d592a8d144736d5815bdda189162d15377"},"schema_version":"1.0","source":{"id":"1306.6505","kind":"arxiv","version":1}},"canonical_sha256":"7eb73a3b8aad3546c3ab70f04856f990785146ff75c172ec76faf38c9b1102ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7eb73a3b8aad3546c3ab70f04856f990785146ff75c172ec76faf38c9b1102ca","first_computed_at":"2026-05-18T03:19:44.607426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:44.607426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qQPlpTp3IHdOnaxbtQo7Om8gp7qvkPP9VjSzAljowNnujUw6MbcvkaIRkjk0JhrTwZsH+WLBO2kk/D+eLM0iDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:44.608082Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.6505","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7977a8d1baebb757ad8e9e84870590df43a953c62999517d67a55cae0d0bfe9e","sha256:84a9bc0910e451d4a78b2e2d4f31d50b985fcf7fb4fca54a01c3b37be1911870"],"state_sha256":"9b4d74702ac9ddb93e96cc6166281aee7c2fabb06a8d867cb17c0e08c52f458e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UL8IN7KMih9hEkmFbUssqQS4pEtHVfI17J4lC7JtOZM14eergZbrkJKRwfVjQ+Rlh9lMGT8iDD0A2XU/c23iAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:43:22.696723Z","bundle_sha256":"b1c658fe8d2933f6a8c75279ad9ffec68d3dbdad34da5dfe6a30eab6d42c3de0"}}