{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:3XGMCEANWOXORHCJWPH5K3QPMT","short_pith_number":"pith:3XGMCEAN","canonical_record":{"source":{"id":"1107.3692","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-07-19T12:01:54Z","cross_cats_sorted":[],"title_canon_sha256":"495264c628acb59d458475ff3b16481a13a047ddc04ab66c309c68306f7575a5","abstract_canon_sha256":"dbcae8d8feb6291525702061bbfba97fc4cc25afc53fa6066949314dc1c59414"},"schema_version":"1.0"},"canonical_sha256":"ddccc1100db3aee89c49b3cfd56e0f64d0e93e118a837368a125e61708a2bd84","source":{"kind":"arxiv","id":"1107.3692","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.3692","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"arxiv_version","alias_value":"1107.3692v1","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.3692","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"pith_short_12","alias_value":"3XGMCEANWOXO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"3XGMCEANWOXORHCJ","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"3XGMCEAN","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:3XGMCEANWOXORHCJWPH5K3QPMT","target":"record","payload":{"canonical_record":{"source":{"id":"1107.3692","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-07-19T12:01:54Z","cross_cats_sorted":[],"title_canon_sha256":"495264c628acb59d458475ff3b16481a13a047ddc04ab66c309c68306f7575a5","abstract_canon_sha256":"dbcae8d8feb6291525702061bbfba97fc4cc25afc53fa6066949314dc1c59414"},"schema_version":"1.0"},"canonical_sha256":"ddccc1100db3aee89c49b3cfd56e0f64d0e93e118a837368a125e61708a2bd84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:17:24.164341Z","signature_b64":"665xESlRmnS6c7CLJLzrkvhpHEjqTsk5/C/LyXLdgJApn/y/czIdga48ub0gyuV8ngQ2NtLjOX7YapkyGbDGAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ddccc1100db3aee89c49b3cfd56e0f64d0e93e118a837368a125e61708a2bd84","last_reissued_at":"2026-05-18T04:17:24.163615Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:17:24.163615Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.3692","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":"2026-05-18T04:17:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zBWVQ4tm6Vc4XxJ0SLjF73MASQXBlfhCdcctu+LCnuFpGc2o+MOsGG6g3uSyQ9UQT3Lt6U47gqmWcYORcF4uBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:34:57.735538Z"},"content_sha256":"07a024be30d2ca3c43beb952904b1c27dd410fdbb814fd854732d8d1fe5a6364","schema_version":"1.0","event_id":"sha256:07a024be30d2ca3c43beb952904b1c27dd410fdbb814fd854732d8d1fe5a6364"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:3XGMCEANWOXORHCJWPH5K3QPMT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Possible experiment for determination of the role of microscopic vortex rings in the \\lambda-transition in He-II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.other","authors_text":"Maksim D. Tomchenko","submitted_at":"2011-07-19T12:01:54Z","abstract_excerpt":"It is suggested that microscopic vortex rings (MVR) play an important role in the \\lambda-transition in helium-II and substantially determine the value of T_{\\lambda}. For very thin films of He-II, with thickness d less than the size of the smallest MVR, the rings do not fit in and, therefore, do not exist in such films. Consequently, for superfluid films of He-II, a peculiarity in the form of a smoothed-out jump should be observed in the curve T_{m}(d) at the values of thickness approximately equal to the size of the smallest MVR, d= 3 - 9 A (T_{m} is the temperature of the maximum of the bro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.3692","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":"2026-05-18T04:17:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rmoBV+mVfl6t+3d/nlJd2Afk4njT6y8VwyxG29ed9h6R4pIyn1yRd/XvrPXNCH2QA0uG/xy0LtBjKdyxbqKODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:34:57.736296Z"},"content_sha256":"55b39204082e457d3730d8b2a1b66e4bd13eb984ec75cfc66692e9539685abc8","schema_version":"1.0","event_id":"sha256:55b39204082e457d3730d8b2a1b66e4bd13eb984ec75cfc66692e9539685abc8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3XGMCEANWOXORHCJWPH5K3QPMT/bundle.json","state_url":"https://pith.science/pith/3XGMCEANWOXORHCJWPH5K3QPMT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3XGMCEANWOXORHCJWPH5K3QPMT/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":"2026-06-10T01:34:57Z","links":{"resolver":"https://pith.science/pith/3XGMCEANWOXORHCJWPH5K3QPMT","bundle":"https://pith.science/pith/3XGMCEANWOXORHCJWPH5K3QPMT/bundle.json","state":"https://pith.science/pith/3XGMCEANWOXORHCJWPH5K3QPMT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3XGMCEANWOXORHCJWPH5K3QPMT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:3XGMCEANWOXORHCJWPH5K3QPMT","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":"dbcae8d8feb6291525702061bbfba97fc4cc25afc53fa6066949314dc1c59414","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-07-19T12:01:54Z","title_canon_sha256":"495264c628acb59d458475ff3b16481a13a047ddc04ab66c309c68306f7575a5"},"schema_version":"1.0","source":{"id":"1107.3692","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.3692","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"arxiv_version","alias_value":"1107.3692v1","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.3692","created_at":"2026-05-18T04:17:24Z"},{"alias_kind":"pith_short_12","alias_value":"3XGMCEANWOXO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"3XGMCEANWOXORHCJ","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"3XGMCEAN","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:55b39204082e457d3730d8b2a1b66e4bd13eb984ec75cfc66692e9539685abc8","target":"graph","created_at":"2026-05-18T04:17:24Z","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":"It is suggested that microscopic vortex rings (MVR) play an important role in the \\lambda-transition in helium-II and substantially determine the value of T_{\\lambda}. For very thin films of He-II, with thickness d less than the size of the smallest MVR, the rings do not fit in and, therefore, do not exist in such films. Consequently, for superfluid films of He-II, a peculiarity in the form of a smoothed-out jump should be observed in the curve T_{m}(d) at the values of thickness approximately equal to the size of the smallest MVR, d= 3 - 9 A (T_{m} is the temperature of the maximum of the bro","authors_text":"Maksim D. Tomchenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-07-19T12:01:54Z","title":"Possible experiment for determination of the role of microscopic vortex rings in the \\lambda-transition in He-II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.3692","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":"sha256:07a024be30d2ca3c43beb952904b1c27dd410fdbb814fd854732d8d1fe5a6364","target":"record","created_at":"2026-05-18T04:17:24Z","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":"dbcae8d8feb6291525702061bbfba97fc4cc25afc53fa6066949314dc1c59414","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2011-07-19T12:01:54Z","title_canon_sha256":"495264c628acb59d458475ff3b16481a13a047ddc04ab66c309c68306f7575a5"},"schema_version":"1.0","source":{"id":"1107.3692","kind":"arxiv","version":1}},"canonical_sha256":"ddccc1100db3aee89c49b3cfd56e0f64d0e93e118a837368a125e61708a2bd84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ddccc1100db3aee89c49b3cfd56e0f64d0e93e118a837368a125e61708a2bd84","first_computed_at":"2026-05-18T04:17:24.163615Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:17:24.163615Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"665xESlRmnS6c7CLJLzrkvhpHEjqTsk5/C/LyXLdgJApn/y/czIdga48ub0gyuV8ngQ2NtLjOX7YapkyGbDGAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:17:24.164341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.3692","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07a024be30d2ca3c43beb952904b1c27dd410fdbb814fd854732d8d1fe5a6364","sha256:55b39204082e457d3730d8b2a1b66e4bd13eb984ec75cfc66692e9539685abc8"],"state_sha256":"b20db717b019b30ca3fb94e45472b6d706cded6e4949b25d21a8b4cd29bc6b9e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XKn0os3MOnGIs0hHt5U8figsWY6d5DmCbmk08KCfmP37m7CjjQ67S6lHOuNAkztDYFpEpYPVZNEF66i0u+QXDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T01:34:57.740090Z","bundle_sha256":"7057ef27a07c7638434c6f9741341df9930ad6f37bed5e0922ecb21f94387ef0"}}