{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:L6YE5PON7NT4NUCW355W4PKDZO","short_pith_number":"pith:L6YE5PON","canonical_record":{"source":{"id":"1110.4023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-10-18T15:29:05Z","cross_cats_sorted":[],"title_canon_sha256":"23a2197df71ed25635d9eb493f49f2ebcabdd4d8162e0f261bb7a372b9688d70","abstract_canon_sha256":"810c9c1a12af7fd1810bd1fc396158289a7000925f5131dbd7fec28bcfe2ee57"},"schema_version":"1.0"},"canonical_sha256":"5fb04ebdcdfb67c6d056df7b6e3d43cb80aa5bbde8976b3f24f60f6960206576","source":{"kind":"arxiv","id":"1110.4023","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.4023","created_at":"2026-05-18T03:51:35Z"},{"alias_kind":"arxiv_version","alias_value":"1110.4023v1","created_at":"2026-05-18T03:51:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.4023","created_at":"2026-05-18T03:51:35Z"},{"alias_kind":"pith_short_12","alias_value":"L6YE5PON7NT4","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L6YE5PON7NT4NUCW","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L6YE5PON","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:L6YE5PON7NT4NUCW355W4PKDZO","target":"record","payload":{"canonical_record":{"source":{"id":"1110.4023","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-10-18T15:29:05Z","cross_cats_sorted":[],"title_canon_sha256":"23a2197df71ed25635d9eb493f49f2ebcabdd4d8162e0f261bb7a372b9688d70","abstract_canon_sha256":"810c9c1a12af7fd1810bd1fc396158289a7000925f5131dbd7fec28bcfe2ee57"},"schema_version":"1.0"},"canonical_sha256":"5fb04ebdcdfb67c6d056df7b6e3d43cb80aa5bbde8976b3f24f60f6960206576","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:51:35.772173Z","signature_b64":"U6BQ2M90+ifzyTfTn6IEioyPDIQsWWjOkRtuIOebiRMAQtNibCjXJyn7ZrgWyoHjTrxOIdE7KJR8NN0/dKPqBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5fb04ebdcdfb67c6d056df7b6e3d43cb80aa5bbde8976b3f24f60f6960206576","last_reissued_at":"2026-05-18T03:51:35.771416Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:51:35.771416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.4023","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":"2026-05-18T03:51:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cTuE1xELoknN3UOqeyfnbzB9w4wl6yAdZDW+VEUVr2Ao/vB5kMdvMMwdNeEkOkK6PymfuR193Lu34WyFGTG1Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:18:05.684823Z"},"content_sha256":"d7a6bb14ac710ae39357ff95844eba7a2c139d8309d86baa1b4348efe3fc14e7","schema_version":"1.0","event_id":"sha256:d7a6bb14ac710ae39357ff95844eba7a2c139d8309d86baa1b4348efe3fc14e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:L6YE5PON7NT4NUCW355W4PKDZO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Collective excitations on a surface of topological insulator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A.A. Sokolik, D.K. Efimkin, Yu.E. Lozovik","submitted_at":"2011-10-18T15:29:05Z","abstract_excerpt":"We study collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particless and direction of its spin is strictly determined by its momentum. Due to this spin-momentum locking, collective excitations in the system manifest themselves as coupled charge- and spin-density waves. We develop quantum field-theoretical description of spin-plasmons in helical liquid and study their properties and internal structure. Value of spin polarization arising in the system with excited spin-pl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.4023","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":"2026-05-18T03:51:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"we18C2KAu1MvfliqcV47b1nwLOYIH0TaYNRQcdFoo25ZUZd6dCD5x3WrLh+1XYCSiN5zL26H8Ajp9TgsJTZgCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:18:05.685368Z"},"content_sha256":"dda5f83cdc18a53509a15cf8707239a7397e60030f5a0ce0bfe2a022d77ad329","schema_version":"1.0","event_id":"sha256:dda5f83cdc18a53509a15cf8707239a7397e60030f5a0ce0bfe2a022d77ad329"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L6YE5PON7NT4NUCW355W4PKDZO/bundle.json","state_url":"https://pith.science/pith/L6YE5PON7NT4NUCW355W4PKDZO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L6YE5PON7NT4NUCW355W4PKDZO/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":"2026-06-11T14:18:05Z","links":{"resolver":"https://pith.science/pith/L6YE5PON7NT4NUCW355W4PKDZO","bundle":"https://pith.science/pith/L6YE5PON7NT4NUCW355W4PKDZO/bundle.json","state":"https://pith.science/pith/L6YE5PON7NT4NUCW355W4PKDZO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L6YE5PON7NT4NUCW355W4PKDZO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:L6YE5PON7NT4NUCW355W4PKDZO","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":"810c9c1a12af7fd1810bd1fc396158289a7000925f5131dbd7fec28bcfe2ee57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-10-18T15:29:05Z","title_canon_sha256":"23a2197df71ed25635d9eb493f49f2ebcabdd4d8162e0f261bb7a372b9688d70"},"schema_version":"1.0","source":{"id":"1110.4023","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.4023","created_at":"2026-05-18T03:51:35Z"},{"alias_kind":"arxiv_version","alias_value":"1110.4023v1","created_at":"2026-05-18T03:51:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.4023","created_at":"2026-05-18T03:51:35Z"},{"alias_kind":"pith_short_12","alias_value":"L6YE5PON7NT4","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"L6YE5PON7NT4NUCW","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"L6YE5PON","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:dda5f83cdc18a53509a15cf8707239a7397e60030f5a0ce0bfe2a022d77ad329","target":"graph","created_at":"2026-05-18T03:51:35Z","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 collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particless and direction of its spin is strictly determined by its momentum. Due to this spin-momentum locking, collective excitations in the system manifest themselves as coupled charge- and spin-density waves. We develop quantum field-theoretical description of spin-plasmons in helical liquid and study their properties and internal structure. Value of spin polarization arising in the system with excited spin-pl","authors_text":"A.A. Sokolik, D.K. Efimkin, Yu.E. Lozovik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-10-18T15:29:05Z","title":"Collective excitations on a surface of topological insulator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.4023","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:d7a6bb14ac710ae39357ff95844eba7a2c139d8309d86baa1b4348efe3fc14e7","target":"record","created_at":"2026-05-18T03:51:35Z","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":"810c9c1a12af7fd1810bd1fc396158289a7000925f5131dbd7fec28bcfe2ee57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-10-18T15:29:05Z","title_canon_sha256":"23a2197df71ed25635d9eb493f49f2ebcabdd4d8162e0f261bb7a372b9688d70"},"schema_version":"1.0","source":{"id":"1110.4023","kind":"arxiv","version":1}},"canonical_sha256":"5fb04ebdcdfb67c6d056df7b6e3d43cb80aa5bbde8976b3f24f60f6960206576","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5fb04ebdcdfb67c6d056df7b6e3d43cb80aa5bbde8976b3f24f60f6960206576","first_computed_at":"2026-05-18T03:51:35.771416Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:51:35.771416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U6BQ2M90+ifzyTfTn6IEioyPDIQsWWjOkRtuIOebiRMAQtNibCjXJyn7ZrgWyoHjTrxOIdE7KJR8NN0/dKPqBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:51:35.772173Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.4023","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7a6bb14ac710ae39357ff95844eba7a2c139d8309d86baa1b4348efe3fc14e7","sha256:dda5f83cdc18a53509a15cf8707239a7397e60030f5a0ce0bfe2a022d77ad329"],"state_sha256":"821776f41e06d37686372524d2349ee970f8eae457c2d82a21bbc8faff89b95c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n8Movh9CHqF3UWFJh/4+kmj71Q/nxPPxQXxuBWlVa3NafVCUJhrbt6YY3HMR2qlFdBNSEKSlRxmgNgUr4Xv9AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T14:18:05.687887Z","bundle_sha256":"5c199c19a9b125fc2015a2ac663fd59f0aae85bf9525b70808f7ccdf7802953c"}}