{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:42CQQ2HILFDXXDRS4E4WVWI7SU","short_pith_number":"pith:42CQQ2HI","canonical_record":{"source":{"id":"1808.06783","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-08-21T06:52:38Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th"],"title_canon_sha256":"6039442fffb037d026cceddc2e2e98e8cd484003d45cfaaa6e7243d1bb4d9eff","abstract_canon_sha256":"cd2f498a4f624a6bf0b302238e42f00339a1bb35aedf2f6e4076bb6054df1cfd"},"schema_version":"1.0"},"canonical_sha256":"e6850868e859477b8e32e1396ad91f95036c0efff5d32c50304563d1172a5cd3","source":{"kind":"arxiv","id":"1808.06783","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06783","created_at":"2026-05-18T00:00:51Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06783v1","created_at":"2026-05-18T00:00:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06783","created_at":"2026-05-18T00:00:51Z"},{"alias_kind":"pith_short_12","alias_value":"42CQQ2HILFDX","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"42CQQ2HILFDXXDRS","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"42CQQ2HI","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:42CQQ2HILFDXXDRS4E4WVWI7SU","target":"record","payload":{"canonical_record":{"source":{"id":"1808.06783","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-08-21T06:52:38Z","cross_cats_sorted":["cond-mat.stat-mech","hep-th"],"title_canon_sha256":"6039442fffb037d026cceddc2e2e98e8cd484003d45cfaaa6e7243d1bb4d9eff","abstract_canon_sha256":"cd2f498a4f624a6bf0b302238e42f00339a1bb35aedf2f6e4076bb6054df1cfd"},"schema_version":"1.0"},"canonical_sha256":"e6850868e859477b8e32e1396ad91f95036c0efff5d32c50304563d1172a5cd3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:51.005678Z","signature_b64":"fjoMvHTW6TJT3iAJ2S0WufmUu3RsovmsR09JbG+SWCpmqCoLX60O7+ahVV3Na+pyE+Lke6+32l8fLeY8DT4zCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6850868e859477b8e32e1396ad91f95036c0efff5d32c50304563d1172a5cd3","last_reissued_at":"2026-05-18T00:00:51.005179Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:51.005179Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.06783","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":"2026-05-18T00:00:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sXPGHNtxUlR5kw9cGyp+9ijZatYSf8/92u2CgnNORoGcNECs7TxHilO3X6kPSJInr3gnYxXLqErWNxf7Q2JHCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:05:50.267242Z"},"content_sha256":"f73c7ab8bc1679b2289357cdded75890c0aee2eb3609775b11677748e8aaa4ee","schema_version":"1.0","event_id":"sha256:f73c7ab8bc1679b2289357cdded75890c0aee2eb3609775b11677748e8aaa4ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:42CQQ2HILFDXXDRS4E4WVWI7SU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Zero point fluctuations for magnetic spirals and Skyrmions, and the fate of the Casimir energy in the continuum limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","hep-th"],"primary_cat":"cond-mat.str-el","authors_text":"B. Dou\\c{c}ot, D. Kovrizhin, R. Moessner","submitted_at":"2018-08-21T06:52:38Z","abstract_excerpt":"We study the role of zero-point quantum fluctuations in a range of magnetic states which on the classical level are close to spin-aligned ferromagnets. These include Skyrmion textures characterized by non-zero topological charge, and topologically-trivial spirals arising from the competition of the Heisenberg and Dzyaloshinskii-Moriya interactions. For the former, we extend our previous results on quantum exactness of classical Bogomolny-Prasad-Sommerfield (BPS) ground-state degeneracies to the general case of K\\\"ahler manifolds, with a specific example of Grassmann manifolds $\\mathrm{Gr(M,N)}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06783","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":"2026-05-18T00:00:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XtvWWCER9+ezopD2eHpNn2PVLxIu8pIexVhq1LS81xn43mYGUwW7H6DQ+NWP2ylYbIE2doIiu3zjRHLzNwfWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T13:05:50.267972Z"},"content_sha256":"b80e8e15a2d5217895bc7e92a1d69fdd61ade6a8fdb82765e2112fe6868e8465","schema_version":"1.0","event_id":"sha256:b80e8e15a2d5217895bc7e92a1d69fdd61ade6a8fdb82765e2112fe6868e8465"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/42CQQ2HILFDXXDRS4E4WVWI7SU/bundle.json","state_url":"https://pith.science/pith/42CQQ2HILFDXXDRS4E4WVWI7SU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/42CQQ2HILFDXXDRS4E4WVWI7SU/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":"2026-05-31T13:05:50Z","links":{"resolver":"https://pith.science/pith/42CQQ2HILFDXXDRS4E4WVWI7SU","bundle":"https://pith.science/pith/42CQQ2HILFDXXDRS4E4WVWI7SU/bundle.json","state":"https://pith.science/pith/42CQQ2HILFDXXDRS4E4WVWI7SU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/42CQQ2HILFDXXDRS4E4WVWI7SU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:42CQQ2HILFDXXDRS4E4WVWI7SU","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":"cd2f498a4f624a6bf0b302238e42f00339a1bb35aedf2f6e4076bb6054df1cfd","cross_cats_sorted":["cond-mat.stat-mech","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-08-21T06:52:38Z","title_canon_sha256":"6039442fffb037d026cceddc2e2e98e8cd484003d45cfaaa6e7243d1bb4d9eff"},"schema_version":"1.0","source":{"id":"1808.06783","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.06783","created_at":"2026-05-18T00:00:51Z"},{"alias_kind":"arxiv_version","alias_value":"1808.06783v1","created_at":"2026-05-18T00:00:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.06783","created_at":"2026-05-18T00:00:51Z"},{"alias_kind":"pith_short_12","alias_value":"42CQQ2HILFDX","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"42CQQ2HILFDXXDRS","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"42CQQ2HI","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:b80e8e15a2d5217895bc7e92a1d69fdd61ade6a8fdb82765e2112fe6868e8465","target":"graph","created_at":"2026-05-18T00:00:51Z","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 study the role of zero-point quantum fluctuations in a range of magnetic states which on the classical level are close to spin-aligned ferromagnets. These include Skyrmion textures characterized by non-zero topological charge, and topologically-trivial spirals arising from the competition of the Heisenberg and Dzyaloshinskii-Moriya interactions. For the former, we extend our previous results on quantum exactness of classical Bogomolny-Prasad-Sommerfield (BPS) ground-state degeneracies to the general case of K\\\"ahler manifolds, with a specific example of Grassmann manifolds $\\mathrm{Gr(M,N)}","authors_text":"B. Dou\\c{c}ot, D. Kovrizhin, R. Moessner","cross_cats":["cond-mat.stat-mech","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-08-21T06:52:38Z","title":"Zero point fluctuations for magnetic spirals and Skyrmions, and the fate of the Casimir energy in the continuum limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.06783","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:f73c7ab8bc1679b2289357cdded75890c0aee2eb3609775b11677748e8aaa4ee","target":"record","created_at":"2026-05-18T00:00:51Z","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":"cd2f498a4f624a6bf0b302238e42f00339a1bb35aedf2f6e4076bb6054df1cfd","cross_cats_sorted":["cond-mat.stat-mech","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-08-21T06:52:38Z","title_canon_sha256":"6039442fffb037d026cceddc2e2e98e8cd484003d45cfaaa6e7243d1bb4d9eff"},"schema_version":"1.0","source":{"id":"1808.06783","kind":"arxiv","version":1}},"canonical_sha256":"e6850868e859477b8e32e1396ad91f95036c0efff5d32c50304563d1172a5cd3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6850868e859477b8e32e1396ad91f95036c0efff5d32c50304563d1172a5cd3","first_computed_at":"2026-05-18T00:00:51.005179Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:51.005179Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fjoMvHTW6TJT3iAJ2S0WufmUu3RsovmsR09JbG+SWCpmqCoLX60O7+ahVV3Na+pyE+Lke6+32l8fLeY8DT4zCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:51.005678Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.06783","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f73c7ab8bc1679b2289357cdded75890c0aee2eb3609775b11677748e8aaa4ee","sha256:b80e8e15a2d5217895bc7e92a1d69fdd61ade6a8fdb82765e2112fe6868e8465"],"state_sha256":"5487c214f5fd5b3e89edd85804f2ce66195544b5a5bfd502753a3663e1ab7c58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0q/rhlB007YnOY+h0FOTZYPGCNFNc9drm091jcl+d0JnYEGquVx2r3X2kl7tJQPqwQOeNWbs1+SLAd9NH2aCCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T13:05:50.271384Z","bundle_sha256":"7cd8efa06c747f37cc3027b5696f5999871a9bd85efde292f9d8864043580b9f"}}