{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:4HR3BA4ZI6X4B4RPFBAB4G3E3O","short_pith_number":"pith:4HR3BA4Z","canonical_record":{"source":{"id":"2208.14323","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-08-30T15:02:24Z","cross_cats_sorted":[],"title_canon_sha256":"7abcc12e3f7c26e21596e23cfaed5a7c72f0bfc4982c2a013adfd39adcb2302c","abstract_canon_sha256":"0da2cc09eaaa90be32c2454949c1f5323403bc5213b166b5a1dcac9266945542"},"schema_version":"1.0"},"canonical_sha256":"e1e3b0839947afc0f22f28401e1b64dbb7e91ee67adb3da6c07028a064a49dbd","source":{"kind":"arxiv","id":"2208.14323","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.14323","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"arxiv_version","alias_value":"2208.14323v1","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.14323","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"pith_short_12","alias_value":"4HR3BA4ZI6X4","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"pith_short_16","alias_value":"4HR3BA4ZI6X4B4RP","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"pith_short_8","alias_value":"4HR3BA4Z","created_at":"2026-07-05T04:53:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:4HR3BA4ZI6X4B4RPFBAB4G3E3O","target":"record","payload":{"canonical_record":{"source":{"id":"2208.14323","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-08-30T15:02:24Z","cross_cats_sorted":[],"title_canon_sha256":"7abcc12e3f7c26e21596e23cfaed5a7c72f0bfc4982c2a013adfd39adcb2302c","abstract_canon_sha256":"0da2cc09eaaa90be32c2454949c1f5323403bc5213b166b5a1dcac9266945542"},"schema_version":"1.0"},"canonical_sha256":"e1e3b0839947afc0f22f28401e1b64dbb7e91ee67adb3da6c07028a064a49dbd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:53:11.140018Z","signature_b64":"6ie66lqfeNasLC4MYWS+cCvmdoeZkp0a0bwo+DKMe9U1dRPyE/e04AKs3LlVEYc3/UqnRoEiUWYYmrFPWia6Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1e3b0839947afc0f22f28401e1b64dbb7e91ee67adb3da6c07028a064a49dbd","last_reissued_at":"2026-07-05T04:53:11.139567Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:53:11.139567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.14323","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":"2026-07-05T04:53:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6+bbFo852kG/PDVhcXA5XtqNAwSuJRFY7BJkQ1zVMFqpBLyH+lraTnRGWUSPtkLyx+1pftl23tgbYizs1kBICA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T04:38:51.543147Z"},"content_sha256":"9cc6ccbf2031ab6c8d0ce6dbc12577464f28f68c3d494be1e9fd6fe59a36fa07","schema_version":"1.0","event_id":"sha256:9cc6ccbf2031ab6c8d0ce6dbc12577464f28f68c3d494be1e9fd6fe59a36fa07"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:4HR3BA4ZI6X4B4RPFBAB4G3E3O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Towards 20 T Hybrid Accelerator Dipole Magnets","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. Zlobin, D. Arbelaez, E. Barzi, E. Rochepault, G. Ambrosio, I. Novitski, J. Stern, L. Brouwer, L. Cooley, L. Garcia Fajardo, M. Juchno, N. Zucchi, P. Ferracin, R. Gupta, V. Kashikhin, V. Marinozzi","submitted_at":"2022-08-30T15:02:24Z","abstract_excerpt":"The most effective way to achieve very high collision energies in a circular particle accelerator is to maximize the field strength of the main bending dipoles. In dipole magnets using Nb-Ti superconductor the practical field limit is considered to be 8-9 T. When Nb3Sn superconductor material is utilized, a field level of 15-16 T can be achieved. To further push the magnetic field beyond the Nb3Sn limits, High Temperature Superconductors (HTS) need to be considered in the magnet design. The most promising HTS materials for particle accelerator magnets are Bi2212 and REBCO. However, their outst"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.14323","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/2208.14323/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":"2026-07-05T04:53:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u97sZP8Z0Fm1U5Iysn5co5agqyMnbofkiqapwQI/iU0qjdG+NQ4JoqYWQfOFfCPKLByp68JTpBcO2tteAUEuAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T04:38:51.543905Z"},"content_sha256":"d832ddf52e8b6d608394d6d86ce9eaf85ab9885090690af9f1dc3d5e6419d2b2","schema_version":"1.0","event_id":"sha256:d832ddf52e8b6d608394d6d86ce9eaf85ab9885090690af9f1dc3d5e6419d2b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O/bundle.json","state_url":"https://pith.science/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O/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":"2026-07-07T04:38:51Z","links":{"resolver":"https://pith.science/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O","bundle":"https://pith.science/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O/bundle.json","state":"https://pith.science/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4HR3BA4ZI6X4B4RPFBAB4G3E3O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:4HR3BA4ZI6X4B4RPFBAB4G3E3O","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":"0da2cc09eaaa90be32c2454949c1f5323403bc5213b166b5a1dcac9266945542","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-08-30T15:02:24Z","title_canon_sha256":"7abcc12e3f7c26e21596e23cfaed5a7c72f0bfc4982c2a013adfd39adcb2302c"},"schema_version":"1.0","source":{"id":"2208.14323","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.14323","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"arxiv_version","alias_value":"2208.14323v1","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.14323","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"pith_short_12","alias_value":"4HR3BA4ZI6X4","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"pith_short_16","alias_value":"4HR3BA4ZI6X4B4RP","created_at":"2026-07-05T04:53:11Z"},{"alias_kind":"pith_short_8","alias_value":"4HR3BA4Z","created_at":"2026-07-05T04:53:11Z"}],"graph_snapshots":[{"event_id":"sha256:d832ddf52e8b6d608394d6d86ce9eaf85ab9885090690af9f1dc3d5e6419d2b2","target":"graph","created_at":"2026-07-05T04:53:11Z","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/2208.14323/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The most effective way to achieve very high collision energies in a circular particle accelerator is to maximize the field strength of the main bending dipoles. In dipole magnets using Nb-Ti superconductor the practical field limit is considered to be 8-9 T. When Nb3Sn superconductor material is utilized, a field level of 15-16 T can be achieved. To further push the magnetic field beyond the Nb3Sn limits, High Temperature Superconductors (HTS) need to be considered in the magnet design. The most promising HTS materials for particle accelerator magnets are Bi2212 and REBCO. However, their outst","authors_text":"A. Zlobin, D. Arbelaez, E. Barzi, E. Rochepault, G. Ambrosio, I. Novitski, J. Stern, L. Brouwer, L. Cooley, L. Garcia Fajardo, M. Juchno, N. Zucchi, P. Ferracin, R. Gupta, V. Kashikhin, V. Marinozzi","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-08-30T15:02:24Z","title":"Towards 20 T Hybrid Accelerator Dipole Magnets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.14323","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":"sha256:9cc6ccbf2031ab6c8d0ce6dbc12577464f28f68c3d494be1e9fd6fe59a36fa07","target":"record","created_at":"2026-07-05T04:53:11Z","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":"0da2cc09eaaa90be32c2454949c1f5323403bc5213b166b5a1dcac9266945542","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2022-08-30T15:02:24Z","title_canon_sha256":"7abcc12e3f7c26e21596e23cfaed5a7c72f0bfc4982c2a013adfd39adcb2302c"},"schema_version":"1.0","source":{"id":"2208.14323","kind":"arxiv","version":1}},"canonical_sha256":"e1e3b0839947afc0f22f28401e1b64dbb7e91ee67adb3da6c07028a064a49dbd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1e3b0839947afc0f22f28401e1b64dbb7e91ee67adb3da6c07028a064a49dbd","first_computed_at":"2026-07-05T04:53:11.139567Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:53:11.139567Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6ie66lqfeNasLC4MYWS+cCvmdoeZkp0a0bwo+DKMe9U1dRPyE/e04AKs3LlVEYc3/UqnRoEiUWYYmrFPWia6Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:53:11.140018Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.14323","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9cc6ccbf2031ab6c8d0ce6dbc12577464f28f68c3d494be1e9fd6fe59a36fa07","sha256:d832ddf52e8b6d608394d6d86ce9eaf85ab9885090690af9f1dc3d5e6419d2b2"],"state_sha256":"6aad95f7ce4447ed156e35f8817ccf68394bc4cb2e78d13675e0fa97cad0a85b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"prCmiRGOB7ZPNVq5qXzSyqWzBA29ZeNCPCHiGh8wHc+LDBw3lRFWRVqucPlBB/IjumT3TBtqT4agemEEWFOhBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T04:38:51.546057Z","bundle_sha256":"c190dd416790059c2340aca7232d228caf4df359e6784599688bc7564917204a"}}