{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7HMAK7QOAXBRNDPG5YM5RQCWID","short_pith_number":"pith:7HMAK7QO","canonical_record":{"source":{"id":"1202.2380","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-02-10T22:57:53Z","cross_cats_sorted":[],"title_canon_sha256":"71537eb4258d9ffc9a3d8376b257be25016c91dab3a8d383b8b9cfbefbcfcfb6","abstract_canon_sha256":"1f9f1099669917ecb28c37fc8ed54cfcb5f53325e4936d58ad8aa0389c15a4bd"},"schema_version":"1.0"},"canonical_sha256":"f9d8057e0e05c3168de6ee19d8c05640cbf3d3324fa509193a54061cfe49d021","source":{"kind":"arxiv","id":"1202.2380","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2380","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2380v1","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2380","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"pith_short_12","alias_value":"7HMAK7QOAXBR","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"7HMAK7QOAXBRNDPG","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"7HMAK7QO","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7HMAK7QOAXBRNDPG5YM5RQCWID","target":"record","payload":{"canonical_record":{"source":{"id":"1202.2380","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-02-10T22:57:53Z","cross_cats_sorted":[],"title_canon_sha256":"71537eb4258d9ffc9a3d8376b257be25016c91dab3a8d383b8b9cfbefbcfcfb6","abstract_canon_sha256":"1f9f1099669917ecb28c37fc8ed54cfcb5f53325e4936d58ad8aa0389c15a4bd"},"schema_version":"1.0"},"canonical_sha256":"f9d8057e0e05c3168de6ee19d8c05640cbf3d3324fa509193a54061cfe49d021","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:31.110395Z","signature_b64":"ygcHq+WHps40MQ6efMlJUJ1wYaVpM+0ilIb/gZcYIz+lkqK1Yd5qkBKIVIZWhj4w/ny0V85BcnD3AJL98dXNAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9d8057e0e05c3168de6ee19d8c05640cbf3d3324fa509193a54061cfe49d021","last_reissued_at":"2026-05-18T01:58:31.109878Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:31.109878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.2380","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":"2026-05-18T01:58:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cDlCHuXR3SJSxCwurdOHwaJmPzUcvitg2p49rNWVLgXDbN3HsHZfNkZrXDVmRvIOZby02O4Jg0q5A78KnPPgDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:07:54.628581Z"},"content_sha256":"d2007098b9ce45b7044b31eb9eef740095a2252af438296f6cf8100ff3d9120b","schema_version":"1.0","event_id":"sha256:d2007098b9ce45b7044b31eb9eef740095a2252af438296f6cf8100ff3d9120b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7HMAK7QOAXBRNDPG5YM5RQCWID","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Conceptual designs of dipole magnet for muon collider ring","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"A. V. Zlobin (Fermilab), I. Novitski, N. Mokhov, V. V. Kashikhin","submitted_at":"2012-02-10T22:57:53Z","abstract_excerpt":"Conceptual designs of a superconducting dipole magnet for a Storage Ring of a Muon Collider with a 1.5 TeV center of mass (c.o.m.) energy and an average luminosity of 10 34 cm-2s-1 are presented. In contrast to proton machines, the dipoles for the Muon Collider should be able to handle ~0.5 kW/m of dynamic heat load from the muon beam decays. The magnets are based on Nb3Sn superconductor and designed to provide an operating field of 10 T in the 20-mm aperture with the critical current margin required for reliable machine operation. The magnet cross-sections were optimized to achieve the best p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2380","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":"2026-05-18T01:58:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tBD5vZstoONfWm/R40Od6E+lrWb1XzwsevDRgedVBytrHw+6/Yt+zqL+nI9XFlJSkN5GG/wUXtBJ/5t15LRKBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:07:54.628941Z"},"content_sha256":"340195502351ad9c046d10cd844177bf7a19a2dc4e6157a2e165170fa14a0d4c","schema_version":"1.0","event_id":"sha256:340195502351ad9c046d10cd844177bf7a19a2dc4e6157a2e165170fa14a0d4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7HMAK7QOAXBRNDPG5YM5RQCWID/bundle.json","state_url":"https://pith.science/pith/7HMAK7QOAXBRNDPG5YM5RQCWID/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7HMAK7QOAXBRNDPG5YM5RQCWID/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":"2026-05-25T21:07:54Z","links":{"resolver":"https://pith.science/pith/7HMAK7QOAXBRNDPG5YM5RQCWID","bundle":"https://pith.science/pith/7HMAK7QOAXBRNDPG5YM5RQCWID/bundle.json","state":"https://pith.science/pith/7HMAK7QOAXBRNDPG5YM5RQCWID/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7HMAK7QOAXBRNDPG5YM5RQCWID/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7HMAK7QOAXBRNDPG5YM5RQCWID","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":"1f9f1099669917ecb28c37fc8ed54cfcb5f53325e4936d58ad8aa0389c15a4bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-02-10T22:57:53Z","title_canon_sha256":"71537eb4258d9ffc9a3d8376b257be25016c91dab3a8d383b8b9cfbefbcfcfb6"},"schema_version":"1.0","source":{"id":"1202.2380","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2380","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2380v1","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2380","created_at":"2026-05-18T01:58:31Z"},{"alias_kind":"pith_short_12","alias_value":"7HMAK7QOAXBR","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"7HMAK7QOAXBRNDPG","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"7HMAK7QO","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:340195502351ad9c046d10cd844177bf7a19a2dc4e6157a2e165170fa14a0d4c","target":"graph","created_at":"2026-05-18T01:58:31Z","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":"Conceptual designs of a superconducting dipole magnet for a Storage Ring of a Muon Collider with a 1.5 TeV center of mass (c.o.m.) energy and an average luminosity of 10 34 cm-2s-1 are presented. In contrast to proton machines, the dipoles for the Muon Collider should be able to handle ~0.5 kW/m of dynamic heat load from the muon beam decays. The magnets are based on Nb3Sn superconductor and designed to provide an operating field of 10 T in the 20-mm aperture with the critical current margin required for reliable machine operation. The magnet cross-sections were optimized to achieve the best p","authors_text":"A. V. Zlobin (Fermilab), I. Novitski, N. Mokhov, V. V. Kashikhin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-02-10T22:57:53Z","title":"Conceptual designs of dipole magnet for muon collider ring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2380","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:d2007098b9ce45b7044b31eb9eef740095a2252af438296f6cf8100ff3d9120b","target":"record","created_at":"2026-05-18T01:58:31Z","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":"1f9f1099669917ecb28c37fc8ed54cfcb5f53325e4936d58ad8aa0389c15a4bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-02-10T22:57:53Z","title_canon_sha256":"71537eb4258d9ffc9a3d8376b257be25016c91dab3a8d383b8b9cfbefbcfcfb6"},"schema_version":"1.0","source":{"id":"1202.2380","kind":"arxiv","version":1}},"canonical_sha256":"f9d8057e0e05c3168de6ee19d8c05640cbf3d3324fa509193a54061cfe49d021","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f9d8057e0e05c3168de6ee19d8c05640cbf3d3324fa509193a54061cfe49d021","first_computed_at":"2026-05-18T01:58:31.109878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:31.109878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ygcHq+WHps40MQ6efMlJUJ1wYaVpM+0ilIb/gZcYIz+lkqK1Yd5qkBKIVIZWhj4w/ny0V85BcnD3AJL98dXNAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:31.110395Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2380","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d2007098b9ce45b7044b31eb9eef740095a2252af438296f6cf8100ff3d9120b","sha256:340195502351ad9c046d10cd844177bf7a19a2dc4e6157a2e165170fa14a0d4c"],"state_sha256":"6939c49c7b755ebfeab1fdfad0c2d1202ef505387a9d06274c5ba07cb8c449c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kx7H4lB8jKicKqU4syjrxynZu0MusHv0SA3s5cn04P6e+iC2Az+vHuj1UYvR8bx7xgM/2dazZXVxCzYeIOr6CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:07:54.631311Z","bundle_sha256":"d9c30ad3e887cceb4970a0f7d47a1f265ea0e43104ee5b473c1c856d0a8542c1"}}