{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:T4EYK3BV76IGH5EWXTUJFATXK6","short_pith_number":"pith:T4EYK3BV","canonical_record":{"source":{"id":"1206.1429","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-06-07T09:19:43Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"7e2af381ddea46b85da97f4746d2aa07d1f93f603851e433691753aa4637734b","abstract_canon_sha256":"9ebcd5346a3ab2b8b20ea536d4ff4cf9be57c5930ddf40d16e15e503a04f56ac"},"schema_version":"1.0"},"canonical_sha256":"9f09856c35ff9063f496bce892827757a844776ce8eb79a143fbc48ec899765b","source":{"kind":"arxiv","id":"1206.1429","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.1429","created_at":"2026-05-18T03:54:05Z"},{"alias_kind":"arxiv_version","alias_value":"1206.1429v1","created_at":"2026-05-18T03:54:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1429","created_at":"2026-05-18T03:54:05Z"},{"alias_kind":"pith_short_12","alias_value":"T4EYK3BV76IG","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"T4EYK3BV76IGH5EW","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"T4EYK3BV","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:T4EYK3BV76IGH5EWXTUJFATXK6","target":"record","payload":{"canonical_record":{"source":{"id":"1206.1429","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-06-07T09:19:43Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"7e2af381ddea46b85da97f4746d2aa07d1f93f603851e433691753aa4637734b","abstract_canon_sha256":"9ebcd5346a3ab2b8b20ea536d4ff4cf9be57c5930ddf40d16e15e503a04f56ac"},"schema_version":"1.0"},"canonical_sha256":"9f09856c35ff9063f496bce892827757a844776ce8eb79a143fbc48ec899765b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:54:05.129645Z","signature_b64":"R4U1gzNXoVlUxgRG9iC5+vOeFWyuYEKUgI019ndBdnVbaIMWwLqj63gb41XiGK+uDhpvomI8NbJRbwX4mnygBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f09856c35ff9063f496bce892827757a844776ce8eb79a143fbc48ec899765b","last_reissued_at":"2026-05-18T03:54:05.129136Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:54:05.129136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.1429","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":"2026-05-18T03:54:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iwSPRxIncqzZf8l5uZtZV3ZSP3NDdxdF4ncAuOoJ0dE0Wmo+hJLAB8vmxl1DAYlF9Pj3x5DtgU6WsaxGaNFaBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T19:13:56.676518Z"},"content_sha256":"9e0117185aa180455a31a9a1d3a9e8b1dc3eebc9540df0ead8a815b9b91a1099","schema_version":"1.0","event_id":"sha256:9e0117185aa180455a31a9a1d3a9e8b1dc3eebc9540df0ead8a815b9b91a1099"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:T4EYK3BV76IGH5EWXTUJFATXK6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Elementary excitations and heat capacity singularity in superfluid helium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.stat-mech","authors_text":"S. A. Trigger, V. B. Bobrov","submitted_at":"2012-06-07T09:19:43Z","abstract_excerpt":"We proceed from the premise that the spectrum of elementary excitations in the normal component in Landau's theory of superfluidity should depend on the superfluid helium temperature. This leads to generalization of the Landau superfluidity criterion. On this basis, taking into account available experimental data on inelastic neutron scattering, it is shown that, in addition to phonon--roton excitations, there is one more type of elementary excitations in superfluid helium, which we called helons. The energy spectrum with such a momentum dependence was first proposed by Landau. The helon energ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1429","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":"2026-05-18T03:54:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+RCfcnDjKcH5ykNNktKDTWjohge/K4Bh51KWAxUBz+XubCI5cYbvS19Q84chUu+Qxmu9e4ZSmgILwby8HvTgAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T19:13:56.676865Z"},"content_sha256":"40d5d6561e3febbb9ce24d66dc89ea976a2c6a3318c06a52e5359a563223dbbc","schema_version":"1.0","event_id":"sha256:40d5d6561e3febbb9ce24d66dc89ea976a2c6a3318c06a52e5359a563223dbbc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T4EYK3BV76IGH5EWXTUJFATXK6/bundle.json","state_url":"https://pith.science/pith/T4EYK3BV76IGH5EWXTUJFATXK6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T4EYK3BV76IGH5EWXTUJFATXK6/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":"2026-06-30T19:13:56Z","links":{"resolver":"https://pith.science/pith/T4EYK3BV76IGH5EWXTUJFATXK6","bundle":"https://pith.science/pith/T4EYK3BV76IGH5EWXTUJFATXK6/bundle.json","state":"https://pith.science/pith/T4EYK3BV76IGH5EWXTUJFATXK6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T4EYK3BV76IGH5EWXTUJFATXK6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:T4EYK3BV76IGH5EWXTUJFATXK6","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":"9ebcd5346a3ab2b8b20ea536d4ff4cf9be57c5930ddf40d16e15e503a04f56ac","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-06-07T09:19:43Z","title_canon_sha256":"7e2af381ddea46b85da97f4746d2aa07d1f93f603851e433691753aa4637734b"},"schema_version":"1.0","source":{"id":"1206.1429","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.1429","created_at":"2026-05-18T03:54:05Z"},{"alias_kind":"arxiv_version","alias_value":"1206.1429v1","created_at":"2026-05-18T03:54:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.1429","created_at":"2026-05-18T03:54:05Z"},{"alias_kind":"pith_short_12","alias_value":"T4EYK3BV76IG","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"T4EYK3BV76IGH5EW","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"T4EYK3BV","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:40d5d6561e3febbb9ce24d66dc89ea976a2c6a3318c06a52e5359a563223dbbc","target":"graph","created_at":"2026-05-18T03:54:05Z","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 proceed from the premise that the spectrum of elementary excitations in the normal component in Landau's theory of superfluidity should depend on the superfluid helium temperature. This leads to generalization of the Landau superfluidity criterion. On this basis, taking into account available experimental data on inelastic neutron scattering, it is shown that, in addition to phonon--roton excitations, there is one more type of elementary excitations in superfluid helium, which we called helons. The energy spectrum with such a momentum dependence was first proposed by Landau. The helon energ","authors_text":"S. A. Trigger, V. B. Bobrov","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-06-07T09:19:43Z","title":"Elementary excitations and heat capacity singularity in superfluid helium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.1429","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":"sha256:9e0117185aa180455a31a9a1d3a9e8b1dc3eebc9540df0ead8a815b9b91a1099","target":"record","created_at":"2026-05-18T03:54:05Z","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":"9ebcd5346a3ab2b8b20ea536d4ff4cf9be57c5930ddf40d16e15e503a04f56ac","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2012-06-07T09:19:43Z","title_canon_sha256":"7e2af381ddea46b85da97f4746d2aa07d1f93f603851e433691753aa4637734b"},"schema_version":"1.0","source":{"id":"1206.1429","kind":"arxiv","version":1}},"canonical_sha256":"9f09856c35ff9063f496bce892827757a844776ce8eb79a143fbc48ec899765b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f09856c35ff9063f496bce892827757a844776ce8eb79a143fbc48ec899765b","first_computed_at":"2026-05-18T03:54:05.129136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:54:05.129136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R4U1gzNXoVlUxgRG9iC5+vOeFWyuYEKUgI019ndBdnVbaIMWwLqj63gb41XiGK+uDhpvomI8NbJRbwX4mnygBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:54:05.129645Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.1429","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e0117185aa180455a31a9a1d3a9e8b1dc3eebc9540df0ead8a815b9b91a1099","sha256:40d5d6561e3febbb9ce24d66dc89ea976a2c6a3318c06a52e5359a563223dbbc"],"state_sha256":"8ae905c3c3fada6b006abda8bf4c6899f77144bc0e6143597ba8a0cd41e1ea60"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nqJzpeRlA7qfFoP4BwTyO07Qg2FxJ0Y2cB0768m0sA4fGuVTWkPrwoBILk99sbtZhxFheral+IE8c3Q1OfUoCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T19:13:56.678830Z","bundle_sha256":"cefa32ba6ac627cc2eb41baf21731128aee3ed1f04cafa20225047bbd879fbdb"}}