{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:I26OKYBB3X7XINW5SAPZRVWLLN","short_pith_number":"pith:I26OKYBB","canonical_record":{"source":{"id":"2307.14963","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-27T15:56:06Z","cross_cats_sorted":[],"title_canon_sha256":"c471a1501f26ff6d5843ed3b96805d86201e545fd613bcc4e93ea95dc481b9df","abstract_canon_sha256":"0f71a1fcc495a8858394af6411ed64df0ee85a35ff3521416a3b552790bcb668"},"schema_version":"1.0"},"canonical_sha256":"46bce56021ddff7436dd901f98d6cb5b4ee7cfad6e31223c0f393245570bb7db","source":{"kind":"arxiv","id":"2307.14963","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.14963","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"arxiv_version","alias_value":"2307.14963v1","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.14963","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_12","alias_value":"I26OKYBB3X7X","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_16","alias_value":"I26OKYBB3X7XINW5","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_8","alias_value":"I26OKYBB","created_at":"2026-07-05T06:35:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:I26OKYBB3X7XINW5SAPZRVWLLN","target":"record","payload":{"canonical_record":{"source":{"id":"2307.14963","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-27T15:56:06Z","cross_cats_sorted":[],"title_canon_sha256":"c471a1501f26ff6d5843ed3b96805d86201e545fd613bcc4e93ea95dc481b9df","abstract_canon_sha256":"0f71a1fcc495a8858394af6411ed64df0ee85a35ff3521416a3b552790bcb668"},"schema_version":"1.0"},"canonical_sha256":"46bce56021ddff7436dd901f98d6cb5b4ee7cfad6e31223c0f393245570bb7db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:35:20.462752Z","signature_b64":"e0fjH//3EHhPRpVHsMRoGLO5Dz2TLOWVScb7u62f2pYbx2JKVEKlkRdp8V+VzIAjBDkRgFVomB3/lnp3QJiQAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46bce56021ddff7436dd901f98d6cb5b4ee7cfad6e31223c0f393245570bb7db","last_reissued_at":"2026-07-05T06:35:20.462276Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:35:20.462276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.14963","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":"2026-07-05T06:35:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o4kp6VGNfSMztCjNZtVXfrqa807IGKrQ9/RbALzLDMVIM+yigQZsvSt8j+Q7K7DdA/Hqh1UdiunBjgiPOByBCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:43:05.545603Z"},"content_sha256":"d329171d16460418d209224a083ad2bae9b2b6ff2523f49ca7c6dbaebb1e2963","schema_version":"1.0","event_id":"sha256:d329171d16460418d209224a083ad2bae9b2b6ff2523f49ca7c6dbaebb1e2963"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:I26OKYBB3X7XINW5SAPZRVWLLN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Demonstration of Autonomous Emittance Characterization at the Argonne Wakefield Accelerator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Auralee Edelen, Dylan Kennedy, Eric Wisniewski, John Power, Ryan Roussel, Seongyeol Kim","submitted_at":"2023-07-27T15:56:06Z","abstract_excerpt":"Transverse beam emittance plays a key role in the performance of high brightness accelerators. Characterizing beam emittance is often done using a quadrupole scan, which fits beam matrix elements to experimental measurements using first order optics. Despite its simplicity at face value, this procedure is difficult to automate due to practical limitations. Key issues that must be addressed include maintaining beam size measurement validity by keeping beams within the radius to diagnostic screens, ensuring that measurement fitting produces physically valid results, and accurately characterizing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.14963","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/2307.14963/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":"2026-07-05T06:35:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WS/VN6kx4bkXCfZY2qMmLiD2qmpot6XUdagHZERqq07raiFlh8ilFighWry0h8WmrVf+O6zE+B+iMM2aFWh1Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:43:05.545990Z"},"content_sha256":"bf0dffdcf0146aff0a8d9222f11d73af97a5d8254e24f02a57339e7bf6362cec","schema_version":"1.0","event_id":"sha256:bf0dffdcf0146aff0a8d9222f11d73af97a5d8254e24f02a57339e7bf6362cec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I26OKYBB3X7XINW5SAPZRVWLLN/bundle.json","state_url":"https://pith.science/pith/I26OKYBB3X7XINW5SAPZRVWLLN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I26OKYBB3X7XINW5SAPZRVWLLN/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":"2026-07-07T08:43:05Z","links":{"resolver":"https://pith.science/pith/I26OKYBB3X7XINW5SAPZRVWLLN","bundle":"https://pith.science/pith/I26OKYBB3X7XINW5SAPZRVWLLN/bundle.json","state":"https://pith.science/pith/I26OKYBB3X7XINW5SAPZRVWLLN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I26OKYBB3X7XINW5SAPZRVWLLN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:I26OKYBB3X7XINW5SAPZRVWLLN","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":"0f71a1fcc495a8858394af6411ed64df0ee85a35ff3521416a3b552790bcb668","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-27T15:56:06Z","title_canon_sha256":"c471a1501f26ff6d5843ed3b96805d86201e545fd613bcc4e93ea95dc481b9df"},"schema_version":"1.0","source":{"id":"2307.14963","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.14963","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"arxiv_version","alias_value":"2307.14963v1","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.14963","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_12","alias_value":"I26OKYBB3X7X","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_16","alias_value":"I26OKYBB3X7XINW5","created_at":"2026-07-05T06:35:20Z"},{"alias_kind":"pith_short_8","alias_value":"I26OKYBB","created_at":"2026-07-05T06:35:20Z"}],"graph_snapshots":[{"event_id":"sha256:bf0dffdcf0146aff0a8d9222f11d73af97a5d8254e24f02a57339e7bf6362cec","target":"graph","created_at":"2026-07-05T06:35:20Z","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/2307.14963/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Transverse beam emittance plays a key role in the performance of high brightness accelerators. Characterizing beam emittance is often done using a quadrupole scan, which fits beam matrix elements to experimental measurements using first order optics. Despite its simplicity at face value, this procedure is difficult to automate due to practical limitations. Key issues that must be addressed include maintaining beam size measurement validity by keeping beams within the radius to diagnostic screens, ensuring that measurement fitting produces physically valid results, and accurately characterizing","authors_text":"Auralee Edelen, Dylan Kennedy, Eric Wisniewski, John Power, Ryan Roussel, Seongyeol Kim","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-27T15:56:06Z","title":"Demonstration of Autonomous Emittance Characterization at the Argonne Wakefield Accelerator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.14963","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:d329171d16460418d209224a083ad2bae9b2b6ff2523f49ca7c6dbaebb1e2963","target":"record","created_at":"2026-07-05T06:35:20Z","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":"0f71a1fcc495a8858394af6411ed64df0ee85a35ff3521416a3b552790bcb668","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2023-07-27T15:56:06Z","title_canon_sha256":"c471a1501f26ff6d5843ed3b96805d86201e545fd613bcc4e93ea95dc481b9df"},"schema_version":"1.0","source":{"id":"2307.14963","kind":"arxiv","version":1}},"canonical_sha256":"46bce56021ddff7436dd901f98d6cb5b4ee7cfad6e31223c0f393245570bb7db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46bce56021ddff7436dd901f98d6cb5b4ee7cfad6e31223c0f393245570bb7db","first_computed_at":"2026-07-05T06:35:20.462276Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:35:20.462276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e0fjH//3EHhPRpVHsMRoGLO5Dz2TLOWVScb7u62f2pYbx2JKVEKlkRdp8V+VzIAjBDkRgFVomB3/lnp3QJiQAw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:35:20.462752Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.14963","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d329171d16460418d209224a083ad2bae9b2b6ff2523f49ca7c6dbaebb1e2963","sha256:bf0dffdcf0146aff0a8d9222f11d73af97a5d8254e24f02a57339e7bf6362cec"],"state_sha256":"3d70e218172c3a1483e32c2e4343b1a50bb17fb1a27744f526ed43d962bcba20"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4BUL6FoqJzT27nj1sqfq8teYhX2ZBUFzBTEym9Ee6CveAL3ktF8O4o/uyOPV8T3HHiWCdj1wax9hslmP8v7cDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:43:05.547895Z","bundle_sha256":"47a5d02554f4c5f587b2bb7c93389ef71eed72c3a1dffa3a09d9d403693d2b09"}}