{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:WOPD3PF4KU36WZ5WKWSKBKJEFT","short_pith_number":"pith:WOPD3PF4","canonical_record":{"source":{"id":"1212.3299","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-13T20:06:56Z","cross_cats_sorted":[],"title_canon_sha256":"e29b58812b874ab0a64f9f54d73d737ac53d89058c49fdb4ff235fb4badd7596","abstract_canon_sha256":"fdf7e0399a6b851471cf5c602261c454f99e83c655a6d46cb3149549688cf116"},"schema_version":"1.0"},"canonical_sha256":"b39e3dbcbc5537eb67b655a4a0a9242cc3ecd9c153f32a397b0684927bcffd08","source":{"kind":"arxiv","id":"1212.3299","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.3299","created_at":"2026-05-18T03:25:16Z"},{"alias_kind":"arxiv_version","alias_value":"1212.3299v2","created_at":"2026-05-18T03:25:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.3299","created_at":"2026-05-18T03:25:16Z"},{"alias_kind":"pith_short_12","alias_value":"WOPD3PF4KU36","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WOPD3PF4KU36WZ5W","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WOPD3PF4","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:WOPD3PF4KU36WZ5WKWSKBKJEFT","target":"record","payload":{"canonical_record":{"source":{"id":"1212.3299","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-13T20:06:56Z","cross_cats_sorted":[],"title_canon_sha256":"e29b58812b874ab0a64f9f54d73d737ac53d89058c49fdb4ff235fb4badd7596","abstract_canon_sha256":"fdf7e0399a6b851471cf5c602261c454f99e83c655a6d46cb3149549688cf116"},"schema_version":"1.0"},"canonical_sha256":"b39e3dbcbc5537eb67b655a4a0a9242cc3ecd9c153f32a397b0684927bcffd08","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:25:16.069069Z","signature_b64":"d3WnfJzdZaTWcecqfYG5ms9FUeVheNiuxQ/WLAHrhC+xaH/ENy60Ua9MlZ77Zikdkyip9od4yjFl2kfRqbXmCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b39e3dbcbc5537eb67b655a4a0a9242cc3ecd9c153f32a397b0684927bcffd08","last_reissued_at":"2026-05-18T03:25:16.068523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:25:16.068523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.3299","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":"2026-05-18T03:25:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bsaPP1/GU3eueQPZ0eyVuwPBEjhheE5fx4xVkNMKF40a6wJzXNM8Yux0SyVirxz06XxlviI2gsMDlLodxfQ5CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T23:38:22.060745Z"},"content_sha256":"8e8b3a7e6edae617399e40922f6e33369b303c0f2ebb7745642281ef7a40b6ce","schema_version":"1.0","event_id":"sha256:8e8b3a7e6edae617399e40922f6e33369b303c0f2ebb7745642281ef7a40b6ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:WOPD3PF4KU36WZ5WKWSKBKJEFT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polaronic model of Two Level Systems in amorphous solids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Eugene Demler, Ivar Martin, Kartiek Agarwal, Mikhail D. Lukin","submitted_at":"2012-12-13T20:06:56Z","abstract_excerpt":"While two levels systems (TLSs) are ubiqitous in solid state systems, microscopic understanding of their nature remains an outstanding problem. Conflicting phenomenological models are used to describe TLSs in seemingly similar materials when probed with different experimental techniques. Specifically, bulk measurements in amorphous solids have been interpreted using the model of a tunneling atom or group of atoms, whereas TLSs observed in the insulating barriers of Josephson junction qubits have been understood in terms of tunneling of individual electrons. Motivated by recent experiments stud"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.3299","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":"2026-05-18T03:25:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ipyarlgPuP/aozALAXENV3WahsDzN4a8dXAAHt/RqpYZyEIiqgJB1t/cdHhkrrcyV4UpPOs/jV3AHzI/w6L8Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T23:38:22.061358Z"},"content_sha256":"02e255e4c86249f8a6bc0376265ccc6b939893d5193e87f2f10c32339b260a60","schema_version":"1.0","event_id":"sha256:02e255e4c86249f8a6bc0376265ccc6b939893d5193e87f2f10c32339b260a60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT/bundle.json","state_url":"https://pith.science/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT/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":"2026-06-07T23:38:22Z","links":{"resolver":"https://pith.science/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT","bundle":"https://pith.science/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT/bundle.json","state":"https://pith.science/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WOPD3PF4KU36WZ5WKWSKBKJEFT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:WOPD3PF4KU36WZ5WKWSKBKJEFT","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":"fdf7e0399a6b851471cf5c602261c454f99e83c655a6d46cb3149549688cf116","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-13T20:06:56Z","title_canon_sha256":"e29b58812b874ab0a64f9f54d73d737ac53d89058c49fdb4ff235fb4badd7596"},"schema_version":"1.0","source":{"id":"1212.3299","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.3299","created_at":"2026-05-18T03:25:16Z"},{"alias_kind":"arxiv_version","alias_value":"1212.3299v2","created_at":"2026-05-18T03:25:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.3299","created_at":"2026-05-18T03:25:16Z"},{"alias_kind":"pith_short_12","alias_value":"WOPD3PF4KU36","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WOPD3PF4KU36WZ5W","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WOPD3PF4","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:02e255e4c86249f8a6bc0376265ccc6b939893d5193e87f2f10c32339b260a60","target":"graph","created_at":"2026-05-18T03:25:16Z","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":"While two levels systems (TLSs) are ubiqitous in solid state systems, microscopic understanding of their nature remains an outstanding problem. Conflicting phenomenological models are used to describe TLSs in seemingly similar materials when probed with different experimental techniques. Specifically, bulk measurements in amorphous solids have been interpreted using the model of a tunneling atom or group of atoms, whereas TLSs observed in the insulating barriers of Josephson junction qubits have been understood in terms of tunneling of individual electrons. Motivated by recent experiments stud","authors_text":"Eugene Demler, Ivar Martin, Kartiek Agarwal, Mikhail D. Lukin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-13T20:06:56Z","title":"Polaronic model of Two Level Systems in amorphous solids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.3299","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":"sha256:8e8b3a7e6edae617399e40922f6e33369b303c0f2ebb7745642281ef7a40b6ce","target":"record","created_at":"2026-05-18T03:25:16Z","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":"fdf7e0399a6b851471cf5c602261c454f99e83c655a6d46cb3149549688cf116","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-12-13T20:06:56Z","title_canon_sha256":"e29b58812b874ab0a64f9f54d73d737ac53d89058c49fdb4ff235fb4badd7596"},"schema_version":"1.0","source":{"id":"1212.3299","kind":"arxiv","version":2}},"canonical_sha256":"b39e3dbcbc5537eb67b655a4a0a9242cc3ecd9c153f32a397b0684927bcffd08","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b39e3dbcbc5537eb67b655a4a0a9242cc3ecd9c153f32a397b0684927bcffd08","first_computed_at":"2026-05-18T03:25:16.068523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:25:16.068523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d3WnfJzdZaTWcecqfYG5ms9FUeVheNiuxQ/WLAHrhC+xaH/ENy60Ua9MlZ77Zikdkyip9od4yjFl2kfRqbXmCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:25:16.069069Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.3299","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8e8b3a7e6edae617399e40922f6e33369b303c0f2ebb7745642281ef7a40b6ce","sha256:02e255e4c86249f8a6bc0376265ccc6b939893d5193e87f2f10c32339b260a60"],"state_sha256":"f1471aa3b8af502b672002416a6aa9ebf5ff5dc7ede313c237dd69715641845f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oj0+7YjSxrU9OOAmPUg+QsCz6ILdiksu/zQiLyMSZraCIExZBsU2OZPHbXQd9ICVmh/JYRxIR2p6K8J+bn24BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T23:38:22.064845Z","bundle_sha256":"24bb45ca8a0c3ea1e92cdc37d9ddc5f9be9c707eeee68d251fd26ad07913a20a"}}