{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:57UGJG7VD5XXZHOPJQYSBPA7Y3","short_pith_number":"pith:57UGJG7V","canonical_record":{"source":{"id":"2001.00272","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-01-01T21:48:52Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"4c673c07b9c3d20daf3a7d2945f335e39dfa81588d5ea4082631d4cb2fa1d7b3","abstract_canon_sha256":"cad78dc4c4fd44d12ceac3b79f07ca7135a7e813f27d2ba82460bd0cccc1de7b"},"schema_version":"1.0"},"canonical_sha256":"efe8649bf51f6f7c9dcf4c3120bc1fc6c92271ae3d16beac141d5ebadf3a814b","source":{"kind":"arxiv","id":"2001.00272","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.00272","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"arxiv_version","alias_value":"2001.00272v2","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.00272","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_12","alias_value":"57UGJG7VD5XX","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_16","alias_value":"57UGJG7VD5XXZHOP","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_8","alias_value":"57UGJG7V","created_at":"2026-07-05T01:14:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:57UGJG7VD5XXZHOPJQYSBPA7Y3","target":"record","payload":{"canonical_record":{"source":{"id":"2001.00272","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-01-01T21:48:52Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"4c673c07b9c3d20daf3a7d2945f335e39dfa81588d5ea4082631d4cb2fa1d7b3","abstract_canon_sha256":"cad78dc4c4fd44d12ceac3b79f07ca7135a7e813f27d2ba82460bd0cccc1de7b"},"schema_version":"1.0"},"canonical_sha256":"efe8649bf51f6f7c9dcf4c3120bc1fc6c92271ae3d16beac141d5ebadf3a814b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:14:34.474500Z","signature_b64":"AIxuFDTO4oOcYAAPklJNVEt2ygZDFkh9KSkP1Zjml2AAESQ1MBF5Yaj9ol12HQPOAWeRVCkx6ofO+wAojtvgCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efe8649bf51f6f7c9dcf4c3120bc1fc6c92271ae3d16beac141d5ebadf3a814b","last_reissued_at":"2026-07-05T01:14:34.474075Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:14:34.474075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.00272","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":"2026-07-05T01:14:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z00i7/BpQsSiO9E09FVoEvdVzWkZZJ0ktFnwAGFTsI5smaEPG98eZYBuqhel7iWIDUTmbW1RSe3YpyNIVIWsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:11:09.905537Z"},"content_sha256":"79b25320d619d58232cf371450cccc22fc0e5b8ab711344c7de30c4bb2ea712f","schema_version":"1.0","event_id":"sha256:79b25320d619d58232cf371450cccc22fc0e5b8ab711344c7de30c4bb2ea712f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:57UGJG7VD5XXZHOPJQYSBPA7Y3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RKKY interaction in a doped pseudospin-1 fermion system at finite temperature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"D. O. Oriekhov, V. P. Gusynin","submitted_at":"2020-01-01T21:48:52Z","abstract_excerpt":"We study the RKKY interaction of magnetic impurities in the $\\alpha-\\mathcal{T}_3$ model which hosts pseudospin-1 fermions with two dispersive and one flat bands. By using the effective low-energy Hamiltonian we calculate the RKKY coupling for impurities placed on the same or different sublattices. We find that there are three types of interaction, which depend on the model parameter defining the relative strength of hoppings between sublattices, two of them can be reduced to graphene case while the third one is new and is due to the presence of a flat zero-energy band. We derive general analy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.00272","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.00272/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:14:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nPrfkZyKdn/jkWKUiUGA/PrPoo6ngczwulMVjKkYYiAK7aC3ZsmppOVp2Dptf7DTo1j7ehYuhh+RWHj7GgznCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T02:11:09.906166Z"},"content_sha256":"46afed4c412226a822fe70c437702f41905af52e94adc64fcf422d50dac4b559","schema_version":"1.0","event_id":"sha256:46afed4c412226a822fe70c437702f41905af52e94adc64fcf422d50dac4b559"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3/bundle.json","state_url":"https://pith.science/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3/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":"2026-08-20T02:11:09Z","links":{"resolver":"https://pith.science/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3","bundle":"https://pith.science/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3/bundle.json","state":"https://pith.science/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/57UGJG7VD5XXZHOPJQYSBPA7Y3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:57UGJG7VD5XXZHOPJQYSBPA7Y3","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":"cad78dc4c4fd44d12ceac3b79f07ca7135a7e813f27d2ba82460bd0cccc1de7b","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-01-01T21:48:52Z","title_canon_sha256":"4c673c07b9c3d20daf3a7d2945f335e39dfa81588d5ea4082631d4cb2fa1d7b3"},"schema_version":"1.0","source":{"id":"2001.00272","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.00272","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"arxiv_version","alias_value":"2001.00272v2","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.00272","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_12","alias_value":"57UGJG7VD5XX","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_16","alias_value":"57UGJG7VD5XXZHOP","created_at":"2026-07-05T01:14:34Z"},{"alias_kind":"pith_short_8","alias_value":"57UGJG7V","created_at":"2026-07-05T01:14:34Z"}],"graph_snapshots":[{"event_id":"sha256:46afed4c412226a822fe70c437702f41905af52e94adc64fcf422d50dac4b559","target":"graph","created_at":"2026-07-05T01:14:34Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2001.00272/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the RKKY interaction of magnetic impurities in the $\\alpha-\\mathcal{T}_3$ model which hosts pseudospin-1 fermions with two dispersive and one flat bands. By using the effective low-energy Hamiltonian we calculate the RKKY coupling for impurities placed on the same or different sublattices. We find that there are three types of interaction, which depend on the model parameter defining the relative strength of hoppings between sublattices, two of them can be reduced to graphene case while the third one is new and is due to the presence of a flat zero-energy band. We derive general analy","authors_text":"D. O. Oriekhov, V. P. Gusynin","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-01-01T21:48:52Z","title":"RKKY interaction in a doped pseudospin-1 fermion system at finite temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.00272","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":"sha256:79b25320d619d58232cf371450cccc22fc0e5b8ab711344c7de30c4bb2ea712f","target":"record","created_at":"2026-07-05T01:14:34Z","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":"cad78dc4c4fd44d12ceac3b79f07ca7135a7e813f27d2ba82460bd0cccc1de7b","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2020-01-01T21:48:52Z","title_canon_sha256":"4c673c07b9c3d20daf3a7d2945f335e39dfa81588d5ea4082631d4cb2fa1d7b3"},"schema_version":"1.0","source":{"id":"2001.00272","kind":"arxiv","version":2}},"canonical_sha256":"efe8649bf51f6f7c9dcf4c3120bc1fc6c92271ae3d16beac141d5ebadf3a814b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efe8649bf51f6f7c9dcf4c3120bc1fc6c92271ae3d16beac141d5ebadf3a814b","first_computed_at":"2026-07-05T01:14:34.474075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:14:34.474075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AIxuFDTO4oOcYAAPklJNVEt2ygZDFkh9KSkP1Zjml2AAESQ1MBF5Yaj9ol12HQPOAWeRVCkx6ofO+wAojtvgCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:14:34.474500Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.00272","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79b25320d619d58232cf371450cccc22fc0e5b8ab711344c7de30c4bb2ea712f","sha256:46afed4c412226a822fe70c437702f41905af52e94adc64fcf422d50dac4b559"],"state_sha256":"a7131e3944ee173e0356e25f506273c0cd4c5c0142962ec7c3c85a703b3a3b83"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jtkvLstYHOZP/lk6E9ymhR7V6mnKwWxuKPwjK71J+EXVuR3rKi9kGj74GI9F4oX1Lit08r8FIwH0Mb7pUiXHDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T02:11:09.910393Z","bundle_sha256":"f35f17b8fcaeb470a56f657c8de9f5925f33d2b316b7c43b6496492380c1a1dd"}}