feat: upload math teacher dataset mix

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+*tfevents* filter=lfs diff=lfs merge=lfs -text
+# Audio files - uncompressed
+*.pcm filter=lfs diff=lfs merge=lfs -text
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+# Audio files - compressed
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ATTRIBUTION.md

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+# Data Sources, Licenses, and Attribution
+
+## Overview
+
+This dataset was assembled by Domyn from publicly available datasets and from datasets generated
+by Domyn.
+
+We acknowledge the original dataset creators, contributors, and organizations responsible for
+collecting, curating, processing, and publishing the upstream data.
+
+The dataset incorporates material subject to different licenses and terms of use. The licensing
+information below describes the terms published by the corresponding upstream sources at the time
+of this release. These terms do not necessarily apply uniformly to every underlying record.
+
+The source references below are provided for attribution and provenance. They are not a
+representation that all underlying content has been independently cleared for redistribution.
+
+## Source Attribution
+
+### DeepScaleR-Preview-Dataset
+
+Source: Agentica
+
+Repository:
+https://huggingface.co/datasets/agentica-org/DeepScaleR-Preview-Dataset
+
+Published license: MIT
+
+### Nemotron-3-Nano-RL-Training-Blend
+
+Source: NVIDIA
+
+Repository:
+https://huggingface.co/datasets/nvidia/Nemotron-3-Nano-RL-Training-Blend
+
+Published license: ODC-BY 1.0

README.md

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+---
+license: apache-2.0
+task_categories:
+  - text-generation
+language:
+  - en
+pretty_name: Domyn Edge Teacher Math Mix
+size_categories:
+  - 10K<n<100K
+tags:
+  - domyn
+  - domyn-edge
+  - teacher
+  - math
+  - grpo
+configs:
+  - config_name: rl
+    data_files:
+      - split: train
+        path: data/rl/train-*.parquet
+      - split: test
+        path: data/rl/test-*.parquet
+---
+
+<p align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://cdn.prod.website-files.com/682dcb35e7fd7a313cae803a/6835cb0fb6bd22a7cba7d645_domyn-logo-payoff-primary-white.svg">
+    <img alt="Domyn" src="https://cdn.prod.website-files.com/682dcb35e7fd7a313cae803a/6835ca86622d317630fa3861_domyn-logo-primary.svg" width="400">
+  </picture>
+</p>
+
+# Domyn Edge Teacher Math Mix
+
+> [!IMPORTANT]
+> **Phased release.** Domyn Edge is a rolling release in three bundles. This dataset is part of the
+> second bundle, together with the domain teachers and their post-training data. For an overview,
+> see the [launch blog post](https://domyn.webflow.io/blog/domyn-edge-compact-model-open).
+
+The training data of [Domyn Edge Teacher Math](https://huggingface.co/domyn/Domyn-Edge-Teacher-Math),
+in one config:
+
+| Config | Stage | Train | Test |
+|---|---|---:|---:|
+| `rl` | GRPO, math problems with a verifiable final answer | 20,153 (2.96M tokens) | 815 (0.11M tokens) |
+
+## `rl`: GRPO problems
+
+Math problems with a single verifiable final answer. The final answer in the
+response is checked against `reward.ground_truth.answer` with math-verify. Each
+prompt carries a system message that asks for the final answer in `\boxed{}` or
+on a final `ANSWER: $ANSWER` line.
+
+| Source | License | Train rows | Train tokens | Test rows | Test tokens |
+|---|---|---:|---:|---:|---:|
+| [DeepScaleR-Preview-Dataset](https://huggingface.co/datasets/agentica-org/DeepScaleR-Preview-Dataset) | MIT | 10,508 | 1.42M | 421 | 0.05M |
+| [Nemotron-3-Nano-RL-Training-Blend](https://huggingface.co/datasets/nvidia/Nemotron-3-Nano-RL-Training-Blend), math slice | ODC-BY 1.0 | 9,645 | 1.53M | 394 | 0.06M |
+| **Total** | | **20,153** | **2.96M** | **815** | **0.11M** |
+
+Tokens are prompt tokens, as in the `token_length` column. The 4,606 train rows that ask for an
+`ANSWER:` line are copies of other train rows; `metadata.augmented_from` names the original.
+
+## Decontamination
+
+Before training, the problems were decontaminated against the benchmarks we evaluate on: AIME 2024,
+AIME 2025, AIME 2026, HMMT February 2025, HMMT February 2026, GSM8K, MGSM (de, en, es, fr),
+GPQA Diamond, IMO-AnswerBench, IMO-ProofBench and LiveBench (math). This removed 22 train and 2 test problems. The `ANSWER:` copies were made afterwards, from
+the remaining problems.
+
+## How to use
+
+```python
+from datasets import load_dataset
+
+rl_train = load_dataset("domyn/Domyn-Edge-Teacher-Math-Mix", "rl", split="train")
+rl_test = load_dataset("domyn/Domyn-Edge-Teacher-Math-Mix", "rl", split="test")
+```
+
+## Columns
+
+| Column | Type | Description |
+|---|---|---|
+| `messages` | list | The prompt: `role` and `content` of each message (the other message fields are null). |
+| `tools` | string | Always null in this config. |
+| `task` | string | Task family. |
+| `source` | string | Upstream dataset. |
+| `license` | string | License of the upstream record. |
+| `metadata` | string | JSON-encoded upstream metadata. |
+| `reward` | string | JSON-encoded reward data: `ground_truth` and the scoring `style`. Here `ground_truth.answer` is the reference final answer. |
+| `token_length` | int | Prompt length in tokens. |
+| `uuid` | string | Record identifier. |
+
+To train with NeMo-Gym, as we did, map each row to the `math_with_judge_simple_agent` input:
+`responses_create_params.input` = `messages`; `question` = `reward.ground_truth.question`, or the
+user message when absent; `expected_answer` = `reward.ground_truth.answer`; `agent_ref` =
+`{"type": "responses_api_agents", "name": "math_with_judge_simple_agent"}`.
+
+## License
+
+Our contributions to this dataset, including the curation and the mix composition, are released
+under the Apache License 2.0. Upstream datasets keep their original license terms. Read
+[ATTRIBUTION.md](ATTRIBUTION.md) before redistributing any part of this data.
+
+## Citation
+
+```bibtex
+@misc{domyn_edge_teacher_math_mix_2026,
+  title     = {Domyn Edge Teacher Math Mix},
+  author    = {Domyn},
+  year      = {2026},
+  note      = {Technical report, forthcoming in November 2026.},
+  publisher = {Hugging Face},
+  url       = {https://huggingface.co/datasets/domyn/Domyn-Edge-Teacher-Math-Mix}
+}
+```

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