{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:SKEVSMRHNS7KS3MLMFVRHCU5T3","short_pith_number":"pith:SKEVSMRH","canonical_record":{"source":{"id":"1801.07575","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-23T14:41:46Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"53fee67e8d984582ac36a7b1e49b3f1dac8d35ea02a59d8eaf46d558fe14371f","abstract_canon_sha256":"50bb4a3c39536aab767d04493514a9a107d67d9644e4f54ad58cc467b4e008f4"},"schema_version":"1.0"},"canonical_sha256":"92895932276cbea96d8b616b138a9d9ee77ea6d8448538b46554704d118418e0","source":{"kind":"arxiv","id":"1801.07575","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.07575","created_at":"2026-05-18T00:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"1801.07575v2","created_at":"2026-05-18T00:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.07575","created_at":"2026-05-18T00:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"SKEVSMRHNS7K","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SKEVSMRHNS7KS3ML","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SKEVSMRH","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:SKEVSMRHNS7KS3MLMFVRHCU5T3","target":"record","payload":{"canonical_record":{"source":{"id":"1801.07575","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-23T14:41:46Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"53fee67e8d984582ac36a7b1e49b3f1dac8d35ea02a59d8eaf46d558fe14371f","abstract_canon_sha256":"50bb4a3c39536aab767d04493514a9a107d67d9644e4f54ad58cc467b4e008f4"},"schema_version":"1.0"},"canonical_sha256":"92895932276cbea96d8b616b138a9d9ee77ea6d8448538b46554704d118418e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:59.680398Z","signature_b64":"4roRPcI9Cg7r7M5/nN3XzKdLXRI0iOR0kUm2y0BAquHHP7NHD4p1HwRxBKvflIWmgsYZZbG4p0prMmNXVvjRCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92895932276cbea96d8b616b138a9d9ee77ea6d8448538b46554704d118418e0","last_reissued_at":"2026-05-18T00:04:59.679804Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:59.679804Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.07575","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":"2026-05-18T00:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tRpCpxyz9dqotUshJUqIJ3qYdaQBvjYnalK5m9WjDnGOJYACzCfu9AevF+QifCnjIY2dqGrNMLWZKJf/rKKCDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T08:41:39.528736Z"},"content_sha256":"d54e85c0c492f5cd79ca540da7ee63e47e0a4d651199888bf8cbe68bb3ff4063","schema_version":"1.0","event_id":"sha256:d54e85c0c492f5cd79ca540da7ee63e47e0a4d651199888bf8cbe68bb3ff4063"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:SKEVSMRHNS7KS3MLMFVRHCU5T3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Seed and Cosmology as Quantum Hall Effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"F. Mendez, H. Falomir, J. Gamboa, P. Gondolo","submitted_at":"2018-01-23T14:41:46Z","abstract_excerpt":"In the framework of a bimetric model, we discuss a relation between the (modified) Friedmann equations and a mechanical system similar to the quantum Hall effect problem. Firstly, we show how these modified Friedmann equations are mapped to an anisotropic two-dimensional charged harmonic oscillator in the presence of a constant magnetic field, with the frequencies of the oscillator playing the role of the cosmological constants. This problem has two energy scales leading to the identification of two different regimes, namely, one dominated by the cosmological constants, with exponential expans"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.07575","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":"2026-05-18T00:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pCwJgh2TuGLIKa6t++c3X9DGt8s+jf+j48FkaEkhHZQtpV+mVVVhOv4Tt2BjpZ6tU8aEF6QFeTgrv0iK8RECCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T08:41:39.529097Z"},"content_sha256":"093e6dca9f4d3b546c8b68198835fe3dc50b76e1999d632c61b541b6d468e95d","schema_version":"1.0","event_id":"sha256:093e6dca9f4d3b546c8b68198835fe3dc50b76e1999d632c61b541b6d468e95d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3/bundle.json","state_url":"https://pith.science/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3/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":"2026-05-19T08:41:39Z","links":{"resolver":"https://pith.science/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3","bundle":"https://pith.science/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3/bundle.json","state":"https://pith.science/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SKEVSMRHNS7KS3MLMFVRHCU5T3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SKEVSMRHNS7KS3MLMFVRHCU5T3","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":"50bb4a3c39536aab767d04493514a9a107d67d9644e4f54ad58cc467b4e008f4","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-23T14:41:46Z","title_canon_sha256":"53fee67e8d984582ac36a7b1e49b3f1dac8d35ea02a59d8eaf46d558fe14371f"},"schema_version":"1.0","source":{"id":"1801.07575","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.07575","created_at":"2026-05-18T00:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"1801.07575v2","created_at":"2026-05-18T00:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.07575","created_at":"2026-05-18T00:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"SKEVSMRHNS7K","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SKEVSMRHNS7KS3ML","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SKEVSMRH","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:093e6dca9f4d3b546c8b68198835fe3dc50b76e1999d632c61b541b6d468e95d","target":"graph","created_at":"2026-05-18T00:04:59Z","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":"In the framework of a bimetric model, we discuss a relation between the (modified) Friedmann equations and a mechanical system similar to the quantum Hall effect problem. Firstly, we show how these modified Friedmann equations are mapped to an anisotropic two-dimensional charged harmonic oscillator in the presence of a constant magnetic field, with the frequencies of the oscillator playing the role of the cosmological constants. This problem has two energy scales leading to the identification of two different regimes, namely, one dominated by the cosmological constants, with exponential expans","authors_text":"F. Mendez, H. Falomir, J. Gamboa, P. Gondolo","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-23T14:41:46Z","title":"Magnetic Seed and Cosmology as Quantum Hall Effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.07575","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:d54e85c0c492f5cd79ca540da7ee63e47e0a4d651199888bf8cbe68bb3ff4063","target":"record","created_at":"2026-05-18T00:04:59Z","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":"50bb4a3c39536aab767d04493514a9a107d67d9644e4f54ad58cc467b4e008f4","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-01-23T14:41:46Z","title_canon_sha256":"53fee67e8d984582ac36a7b1e49b3f1dac8d35ea02a59d8eaf46d558fe14371f"},"schema_version":"1.0","source":{"id":"1801.07575","kind":"arxiv","version":2}},"canonical_sha256":"92895932276cbea96d8b616b138a9d9ee77ea6d8448538b46554704d118418e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92895932276cbea96d8b616b138a9d9ee77ea6d8448538b46554704d118418e0","first_computed_at":"2026-05-18T00:04:59.679804Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:59.679804Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4roRPcI9Cg7r7M5/nN3XzKdLXRI0iOR0kUm2y0BAquHHP7NHD4p1HwRxBKvflIWmgsYZZbG4p0prMmNXVvjRCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:59.680398Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.07575","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d54e85c0c492f5cd79ca540da7ee63e47e0a4d651199888bf8cbe68bb3ff4063","sha256:093e6dca9f4d3b546c8b68198835fe3dc50b76e1999d632c61b541b6d468e95d"],"state_sha256":"a7d636fd484356dbeb60b2632fd3280ce440e03856b4f56d2dc954b5e2a86d44"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R5c45Nthd8PbbygvoDjpg0NvkPkh6Y87hJklTGNNzSwQPt1qmFOcM6m7Y1C70SPom21+h+BwzItpj7YMebPuDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T08:41:39.530791Z","bundle_sha256":"b96946a69f81039f9f32d932dc44c3001f793f637eb1fc3100af1e16a2aa5383"}}