{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:N6QDMWFCF7ZVSAEWCS2WFXLGT5","short_pith_number":"pith:N6QDMWFC","canonical_record":{"source":{"id":"1705.06328","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-17T19:53:38Z","cross_cats_sorted":[],"title_canon_sha256":"1b85dae08289f2fbfb8e97ecc7bc8c695b2e1c258a258e8be845fb85966761e1","abstract_canon_sha256":"14068f1dc388215344d2b56719ca70c69c93fe147f435b3b2217caa9ebb6698c"},"schema_version":"1.0"},"canonical_sha256":"6fa03658a22ff359009614b562dd669f4271b667945ea2275b5559a905fde4f4","source":{"kind":"arxiv","id":"1705.06328","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.06328","created_at":"2026-05-18T00:41:32Z"},{"alias_kind":"arxiv_version","alias_value":"1705.06328v2","created_at":"2026-05-18T00:41:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.06328","created_at":"2026-05-18T00:41:32Z"},{"alias_kind":"pith_short_12","alias_value":"N6QDMWFCF7ZV","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"N6QDMWFCF7ZVSAEW","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"N6QDMWFC","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:N6QDMWFCF7ZVSAEWCS2WFXLGT5","target":"record","payload":{"canonical_record":{"source":{"id":"1705.06328","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-17T19:53:38Z","cross_cats_sorted":[],"title_canon_sha256":"1b85dae08289f2fbfb8e97ecc7bc8c695b2e1c258a258e8be845fb85966761e1","abstract_canon_sha256":"14068f1dc388215344d2b56719ca70c69c93fe147f435b3b2217caa9ebb6698c"},"schema_version":"1.0"},"canonical_sha256":"6fa03658a22ff359009614b562dd669f4271b667945ea2275b5559a905fde4f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:32.509300Z","signature_b64":"KDASRJJ57y0UbaaYwYnisOmqeo8B2gMWkzR2e4zd+t9xyR79E6KcZeL29c4UU2PQCFazwugEaAtRrHy0JeFGCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fa03658a22ff359009614b562dd669f4271b667945ea2275b5559a905fde4f4","last_reissued_at":"2026-05-18T00:41:32.508522Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:32.508522Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.06328","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:41:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E2apR3fjTb/zOZW2468kZIM5HC7VfrvQ9c7taoPFpEVquRhs/dhTulKLD/CXqBRjmjQcm4uAcSYLAYUx0tV+Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T06:47:14.673897Z"},"content_sha256":"127af64334da8c7f196ffcada074302d5ec6b62ed6eb0d0e7121d9b8250268de","schema_version":"1.0","event_id":"sha256:127af64334da8c7f196ffcada074302d5ec6b62ed6eb0d0e7121d9b8250268de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:N6QDMWFCF7ZVSAEWCS2WFXLGT5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ballistic magnon heat conduction and possible Poiseuille flow in the helimagnetic insulator Cu$_2$OSeO$_3$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Akopyan, B. A. Trump, G. G. Marcus, J. L. Cohn, N. Prasai, S. X. Huang, T. M. McQueen","submitted_at":"2017-05-17T19:53:38Z","abstract_excerpt":"We report on the observation of magnon thermal conductivity $\\kappa_m\\sim$ 70 W/mK near 5 K in the helimagnetic insulator Cu$_2$OSeO$_3$, exceeding that measured in any other ferromagnet by almost two orders of magnitude. Ballistic, boundary-limited transport for both magnons and phonons is established below 1 K, and Poiseuille flow of magnons is proposed to explain a magnon mean-free path substantially exceeding the specimen width for the least defective specimens in the range 2 K $<T<$ 10 K. These observations establish Cu$_2$OSeO$_3$ as a model system for studying long-wavelength magnon dyn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.06328","kind":"arxiv","version":2},"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":"2026-05-18T00:41:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fsBQwoHGGXOF/HMFmJeicO77fB7p8G6FK+jx9jIa7nHjo5LHesOSQPZSIM3dQMcmVWYpTftLHIMTqU4cgGLODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T06:47:14.674253Z"},"content_sha256":"09fc111f26bacb2f71eea573d9b594ca5a4b1e0dc7ec6c90abe511cf28440cd8","schema_version":"1.0","event_id":"sha256:09fc111f26bacb2f71eea573d9b594ca5a4b1e0dc7ec6c90abe511cf28440cd8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5/bundle.json","state_url":"https://pith.science/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5/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":"2026-05-21T06:47:14Z","links":{"resolver":"https://pith.science/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5","bundle":"https://pith.science/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5/bundle.json","state":"https://pith.science/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N6QDMWFCF7ZVSAEWCS2WFXLGT5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:N6QDMWFCF7ZVSAEWCS2WFXLGT5","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":"14068f1dc388215344d2b56719ca70c69c93fe147f435b3b2217caa9ebb6698c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-17T19:53:38Z","title_canon_sha256":"1b85dae08289f2fbfb8e97ecc7bc8c695b2e1c258a258e8be845fb85966761e1"},"schema_version":"1.0","source":{"id":"1705.06328","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.06328","created_at":"2026-05-18T00:41:32Z"},{"alias_kind":"arxiv_version","alias_value":"1705.06328v2","created_at":"2026-05-18T00:41:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.06328","created_at":"2026-05-18T00:41:32Z"},{"alias_kind":"pith_short_12","alias_value":"N6QDMWFCF7ZV","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"N6QDMWFCF7ZVSAEW","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"N6QDMWFC","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:09fc111f26bacb2f71eea573d9b594ca5a4b1e0dc7ec6c90abe511cf28440cd8","target":"graph","created_at":"2026-05-18T00:41:32Z","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 report on the observation of magnon thermal conductivity $\\kappa_m\\sim$ 70 W/mK near 5 K in the helimagnetic insulator Cu$_2$OSeO$_3$, exceeding that measured in any other ferromagnet by almost two orders of magnitude. Ballistic, boundary-limited transport for both magnons and phonons is established below 1 K, and Poiseuille flow of magnons is proposed to explain a magnon mean-free path substantially exceeding the specimen width for the least defective specimens in the range 2 K $<T<$ 10 K. These observations establish Cu$_2$OSeO$_3$ as a model system for studying long-wavelength magnon dyn","authors_text":"A. Akopyan, B. A. Trump, G. G. Marcus, J. L. Cohn, N. Prasai, S. X. Huang, T. M. McQueen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-17T19:53:38Z","title":"Ballistic magnon heat conduction and possible Poiseuille flow in the helimagnetic insulator Cu$_2$OSeO$_3$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.06328","kind":"arxiv","version":2},"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":"sha256:127af64334da8c7f196ffcada074302d5ec6b62ed6eb0d0e7121d9b8250268de","target":"record","created_at":"2026-05-18T00:41:32Z","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":"14068f1dc388215344d2b56719ca70c69c93fe147f435b3b2217caa9ebb6698c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-05-17T19:53:38Z","title_canon_sha256":"1b85dae08289f2fbfb8e97ecc7bc8c695b2e1c258a258e8be845fb85966761e1"},"schema_version":"1.0","source":{"id":"1705.06328","kind":"arxiv","version":2}},"canonical_sha256":"6fa03658a22ff359009614b562dd669f4271b667945ea2275b5559a905fde4f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6fa03658a22ff359009614b562dd669f4271b667945ea2275b5559a905fde4f4","first_computed_at":"2026-05-18T00:41:32.508522Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:32.508522Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KDASRJJ57y0UbaaYwYnisOmqeo8B2gMWkzR2e4zd+t9xyR79E6KcZeL29c4UU2PQCFazwugEaAtRrHy0JeFGCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:32.509300Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.06328","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:127af64334da8c7f196ffcada074302d5ec6b62ed6eb0d0e7121d9b8250268de","sha256:09fc111f26bacb2f71eea573d9b594ca5a4b1e0dc7ec6c90abe511cf28440cd8"],"state_sha256":"3ca783b76fbbe1fdf4792e3fa839ebdf3b750c4f860950673a8c54ecd0a26d2f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7u7jK5Apwf+T+iJNWK5TrIbne/gFb31e9Xn0uomXpI8SClfGdI41zUGx1fNrtuH9tnzBC5dkALIDwksEOVdrAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T06:47:14.676440Z","bundle_sha256":"4d2993a395f6c0553bdc9e6015cb332c818449b594325752b08072ca77be825c"}}