Add bounded ZeroGPU portability receipts

MANIFEST.sha256

@@ -1,7 +1,50 @@
+684888c0ebb17f374298b65ee2807526c066094c701bcc7ebbe1c1095f494fc1  ./.cache/huggingface/.gitignore
+f6572428f6d5e1575e73a1502895a8731f10757dfbb634909c6e154b849af91d  ./.cache/huggingface/CACHEDIR.TAG
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/.gitattributes.lock
+d0af0c46a53f91c713139efcbef7088907e30db374d142d9ef655b51e0395195  ./.cache/huggingface/download/.gitattributes.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/LICENSE.lock
+73302cd521169ca0def2e5362843d525725a10acdc09725a2d7cc85d6a5b40cf  ./.cache/huggingface/download/LICENSE.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/MANIFEST.sha256.lock
+d48dd841add66799dee8da9331a7d956ad47160b68dd69a696b987981a2cebc8  ./.cache/huggingface/download/MANIFEST.sha256.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/NOTICE.lock
+a550714852fad8b1d748694c524e6a781dd05beca9f854e8fd067cbfabd8b11d  ./.cache/huggingface/download/NOTICE.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/README.md.lock
+3a098791937a0ee287c7f169973ab3938a5e34887c01fc62851c763e6afe1d46  ./.cache/huggingface/download/README.md.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/adaptive/summary.json.lock
+4006581644a742e49d30b1e5a02370b37f49bdecca5e155b5fd90dc8d8514a59  ./.cache/huggingface/download/evidence/adaptive/summary.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/batching/receipt.json.lock
+eb7708697bffdcb9fe9742f1aff953392e335ef1e50fa318f6f4f35775b16035  ./.cache/huggingface/download/evidence/batching/receipt.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/continuation/replay-summary.json.lock
+33220f5353668799b879ec8566d7113281db7726ca2c17595040dd0c13242857  ./.cache/huggingface/download/evidence/continuation/replay-summary.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/continuation/top128-confirmation-summary.json.lock
+280f04da25c74d018e07ef0795b73bbe8476a78b759b2ff911ed375c2e7ce9f5  ./.cache/huggingface/download/evidence/continuation/top128-confirmation-summary.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/continuation/top64-coordinate-contract-summary.json.lock
+beff70241586535f12798445f3c960c746f1443d606cb1e5d2dc9824760b33a1  ./.cache/huggingface/download/evidence/continuation/top64-coordinate-contract-summary.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/continuation/top64-seed-transfer-summary.json.lock
+09f05bfecded6831c4361683d9028ae294e43822625bff243776bc3f4da5062d  ./.cache/huggingface/download/evidence/continuation/top64-seed-transfer-summary.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/horizon/matched-runtime-reproduction.json.lock
+50c0b6d9bc929f5206711443704ad2c899893d9a02bba88cf5405b8376b7f1bf  ./.cache/huggingface/download/evidence/horizon/matched-runtime-reproduction.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/horizon/measurements.json.lock
+ce2e8b557480e2e82e2623ead90ad5419ba98ff1122d878a564313d53e7e50bd  ./.cache/huggingface/download/evidence/horizon/measurements.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/keyframe/measurements.json.lock
+f58553c5177134f9b90bbc2846f01c945207ed1361f470d0ab8614ccb06e74e4  ./.cache/huggingface/download/evidence/keyframe/measurements.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/keyframe/original-verification.json.lock
+3d68d435607163f757e33bf42cbd8ec14538a020dce79d28b2a7fa67c1803e7e  ./.cache/huggingface/download/evidence/keyframe/original-verification.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/mnist/REPRODUCTION_RECEIPT.md.lock
+d366b465d07c68fa24b7ebfd6085c26ec803af41898b85e4a4e821fb6e7d7d06  ./.cache/huggingface/download/evidence/mnist/REPRODUCTION_RECEIPT.md.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/mnist/mnist-scale-evidence.npz.lock
+1209ab508760d45d4dd019c209077beede5e08977f3398b3f56b6fb2eb1f8dad  ./.cache/huggingface/download/evidence/mnist/mnist-scale-evidence.npz.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/mnist/summary.json.lock
+54c169ecfcb2da297381c66a25aff28abf503f113340c47ed0de70df4f1f1667  ./.cache/huggingface/download/evidence/mnist/summary.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/taylor/event-a_target-a.receipt.json.lock
+5c0d5f9223ca4803ec08d4bd3e81f68a445664a3bc9c5142fc9df0303d64027d  ./.cache/huggingface/download/evidence/taylor/event-a_target-a.receipt.json.metadata
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  ./.cache/huggingface/download/evidence/taylor/event-h_target-f.receipt.json.lock
+2ec4519d942ca0e5e7d2ac0b42f1db1dcf5fe2c4a3a1db24172bbea8cc278ec3  ./.cache/huggingface/download/evidence/taylor/event-h_target-f.receipt.json.metadata
+52480dd6216934655f5fe4dbf6fd76f3efa2a5b62425d4faa2e96c01ec6565bc  ./.cache/huggingface/trees/bc643629900f8beb444eb498c707a6b79b14ad91.json
 9e75dd981de037ec3769f24f790e126bc5a160b6871f510214e68dc70649aeeb  ./.gitattributes
 9ba9550ad48438d0836ddab3da480b3b69ffa0aac7b7878b5a0039e7ab429411  ./LICENSE
 45319eb010f605d371cb8fbf55f157973ebac9fd748759247a807acbdc4f9e73  ./NOTICE
-08e826929d739bdf84e6d93d937f2e760c0890e7e14b890eed938b6c556b8785  ./README.md
+2f19d4bae403bcfdaa073b539f271c68537f9c768684b3cab34e8a455a8bb2fa  ./README.md
 a269fc0a1770f48ba2c9a767e515166ca42a9caf7612526e3f4ad790d197890f  ./evidence/adaptive/summary.json
 452cc3ee4dc29b0fe32e2c4dc128f10b44bf656009034f69cf9e6e9af4a2912f  ./evidence/batching/receipt.json
 8b24a8b48d6c92b0a15626fa29648e004fa3a6683b1259f450d237a16d52c201  ./evidence/continuation/replay-summary.json
@@ -10,6 +53,10 @@ c7142b9d4433310e5f0d5f462035440fda0aa6dfc2ac3f303fb6691afce19446  ./evidence/con
 a544bc63406cce60422217c98cc72a7ac0a6182fe898feba081faa2d4ec51283  ./evidence/continuation/top64-seed-transfer-summary.json
 4111844b1073916e590918c5d031ad52a39ecd3aa9c9fcec86c81063bf8e3fe6  ./evidence/horizon/matched-runtime-reproduction.json
 1abd6ee64e1d1122a17aa9b83a6905dbd638be998c29de88a322bb9f6bf43229  ./evidence/horizon/measurements.json
+09b4c1c2276e86ab7ae30179732eee35f25d895d25c2f61047cb59117992bda6  ./evidence/horizon/zerogpu-portability/README.md
+f819356aa1d25c9e306c1e91411c7c3a54377db42e516ead31aeaf786b5aece9  ./evidence/horizon/zerogpu-portability/local-cpu-measurements.json
+3039fc2eff20441d3d19035b135892312456b22a19aec3d7fc62028c74cf1dbb  ./evidence/horizon/zerogpu-portability/local-cpu-run-receipt.json
+656bb83621c6f9695f8c4041b3743439f325351bb01da7dd0f0fefee2070171f  ./evidence/horizon/zerogpu-portability/zerogpu-receipt.json
 c27b5c3102701624b260a4067b991454119193b6bd292fe476f0cff246e31ef5  ./evidence/keyframe/measurements.json
 ea0e76a72e499d5fd5a6f0e3d5598da5e96db8dbc9c27d5994d4aaf6fea183c4  ./evidence/keyframe/original-verification.json
 c04848664bbb61970b2f3a83ba390890a08022a6e90c6b64ecb82c491e3a8136  ./evidence/mnist/REPRODUCTION_RECEIPT.md

README.md

@@ -27,6 +27,12 @@ The long-horizon evidence includes a matched-runtime reproduction receipt for
 the exact PyTorch 2.13 result through 8,192 transitions and separately records
 the observed PyTorch 2.8 strict-hash portability boundary.
 
+`evidence/horizon/zerogpu-portability/` adds a bounded three-horizon control
+comparing the local PyTorch 2.13 CPU path with a PyTorch 2.13 CUDA run on
+Hugging Face ZeroGPU. Every recorded scientific decision agreed; blanket
+numerical identity did not. The control is neither a full 8,192-transition
+reproduction nor a CPU-versus-GPU performance benchmark.
+
 ## License
 
 Original Dataset material is licensed under the Creative Commons Attribution
@@ -43,4 +49,5 @@ are not relicensed by this Dataset.
 itself. The final HF Space must pin an exact Dataset commit rather than follow
 the mutable `main` branch.
 
-Status: local clean-room candidate; not committed, uploaded, or published.
+Status: public evidence Dataset. Publishing the Community Article remains a
+separate final gate.

evidence/horizon/zerogpu-portability/README.md

@@ -0,0 +1,26 @@
+# Bounded ZeroGPU portability control
+
+This directory records a three-horizon portability control at horizons 32, 64,
+and 128. It compares the local CPU authority path with a Hugging Face ZeroGPU
+CUDA execution using the same hash-bound checkpoint and PyTorch 2.13 family.
+
+Files:
+
+- `local-cpu-run-receipt.json` records the complete local CPU authority run,
+  including the exact result through horizon 8,192 and observed resource use.
+- `local-cpu-measurements.json` contains that run's machine-readable
+  measurements.
+- `zerogpu-receipt.json` records the bounded CUDA environment, comparisons,
+  numerical deltas, and interpretation.
+
+All decision-bearing comparisons agreed for the three tested horizons. The
+complete arrays were not blanket-identical: the largest absolute difference
+was approximately 0.00070273 in a third-order final log-log slope near its
+numerical resolution, while the largest scaled-discrepancy difference was
+approximately 2.22e-16. The difference did not change any recorded scientific
+disposition.
+
+This is a cross-hardware portability control, not an independent replication,
+a full CUDA rerun through 8,192 transitions, or a speed benchmark. The complete
+local CPU run remains the scientific authority. Executable source is stored in
+the companion GitHub repository at an immutable revision.

evidence/horizon/zerogpu-portability/local-cpu-run-receipt.json

@@ -0,0 +1,36 @@
+{
+  "schema": "sno.local-cpu-bounded-baseline.v1",
+  "date": "2026-09-14",
+  "scope": "matched-runtime local CPU execution of the frozen 32,64,128 horizon subset",
+  "command": "python run_causal_horizon_breakpoint.py --horizons 32,64,128",
+  "environment": {
+    "python": "3.13.13",
+    "platform": "macOS-27.0-arm64-arm-64bit-Mach-O",
+    "numpy": "2.5.1",
+    "matplotlib": "3.11.1",
+    "pytorch": "2.13.0",
+    "device": "host CPU",
+    "dtype": "torch.float64",
+    "torch_threads": 1
+  },
+  "checkpoint": {
+    "sha256": "c57200ce04c357228a71e15478b9580322dced7b7111c7c74f05356086c71384",
+    "byte_identical_to_complete_ladder_input": true
+  },
+  "result": {
+    "measurements_sha256": "f819356aa1d25c9e306c1e91411c7c3a54377db42e516ead31aeaf786b5aece9",
+    "horizons": [32, 64, 128],
+    "all_statuses": ["PASS", "PASS", "PASS"],
+    "all_stop_reasons_empty": true
+  },
+  "resources": {
+    "elapsed_seconds": 151.17,
+    "user_cpu_seconds": 29.75,
+    "system_cpu_seconds": 24.48,
+    "maximum_resident_set_bytes": 1043890176,
+    "peak_memory_footprint_bytes": 440993520,
+    "swaps": 0,
+    "measurement_tool": "/usr/bin/time -lp"
+  },
+  "claim_ceiling": "This is a matched local timing and numerical reference for the three-horizon portability subset. It is not the complete 32-through-8192 authority run."
+}

evidence/horizon/zerogpu-portability/zerogpu-receipt.json

@@ -0,0 +1,99 @@
+{
+  "checkpoint": {
+    "input_role": "byte-identical checkpoint generated by the local CPU authority path",
+    "matches_cpu_authority": true,
+    "sha256": "c57200ce04c357228a71e15478b9580322dced7b7111c7c74f05356086c71384"
+  },
+  "comparison": {
+    "all_horizon_decisions_agree": true,
+    "all_numeric_values_close_rtol_1e-9_atol_1e-12": false,
+    "cpu_reference_sha256": "b48af9b94fe9d5b0e54300d1633349c055c064e694d212ce2818bb52e2f72b7a",
+    "horizons": [
+      32,
+      64,
+      128
+    ],
+    "numeric_leaf_count": 2373,
+    "per_horizon": [
+      {
+        "all_records_finite": true,
+        "decision_agreement": true,
+        "each_order_improves_alpha_one": true,
+        "event_positions_match_cpu": true,
+        "finite_baseline": true,
+        "horizon": 32,
+        "residual_order_dispositions_match_cpu": true,
+        "status": "PASS",
+        "status_matches_cpu": true,
+        "stop_reasons_match_cpu": true,
+        "third_order_material_sign_accuracy": 1.0,
+        "third_order_relative_mae": 4.270185763311071e-08
+      },
+      {
+        "all_records_finite": true,
+        "decision_agreement": true,
+        "each_order_improves_alpha_one": true,
+        "event_positions_match_cpu": true,
+        "finite_baseline": true,
+        "horizon": 64,
+        "residual_order_dispositions_match_cpu": true,
+        "status": "PASS",
+        "status_matches_cpu": true,
+        "stop_reasons_match_cpu": true,
+        "third_order_material_sign_accuracy": 1.0,
+        "third_order_relative_mae": 1.8160403187706612e-08
+      },
+      {
+        "all_records_finite": true,
+        "decision_agreement": true,
+        "each_order_improves_alpha_one": true,
+        "event_positions_match_cpu": true,
+        "finite_baseline": true,
+        "horizon": 128,
+        "residual_order_dispositions_match_cpu": true,
+        "status": "PASS",
+        "status_matches_cpu": true,
+        "stop_reasons_match_cpu": true,
+        "third_order_material_sign_accuracy": 1.0,
+        "third_order_relative_mae": 5.018142262065098e-08
+      }
+    ],
+    "worst_absolute_error": {
+      "absolute_error": 0.0007027303143045671,
+      "actual": 3.997895366576603,
+      "expected": 3.9971926362622985,
+      "field_path": "/0/summaries/3/final/mae_log_log_fit/slope",
+      "scaled_error": 0.00017577506409486522
+    },
+    "worst_scaled_error": {
+      "absolute_error": 2.220477812985835e-16,
+      "actual": 1.3713029311661655e-16,
+      "expected": -8.491748818196697e-17,
+      "field_path": "/2/records/3/order_3_residual",
+      "scaled_error": 0.2220477812985835
+    }
+  },
+  "elapsed_seconds": 24.83867708593607,
+  "environment": {
+    "cuda_capability": [
+      12,
+      0
+    ],
+    "cuda_device": "NVIDIA RTX PRO 6000 Blackwell Server Edition MIG 2g.48gb",
+    "cuda_runtime": "13.0",
+    "dtype": "torch.float64",
+    "observed_tensor_device": "cuda:0",
+    "platform": "Linux-6.12.94-123.192.amzn2023.x86_64-x86_64-with-glibc2.41",
+    "python": "3.12.12",
+    "pytorch": "2.13.0+cu130",
+    "torch_threads": 1
+  },
+  "interpretation": {
+    "authority": "The complete local PyTorch 2.13 float64 CPU ladder remains authoritative.",
+    "claim_ceiling": "This run does not establish bitwise cross-platform identity, full 8192-horizon CUDA reproduction, or a fair CPU-versus-GPU speed comparison.",
+    "positive_result": "A pass means the bounded CUDA run preserves the frozen checkpoint and selected scientific decisions within the declared numerical tolerance."
+  },
+  "receipt_sha256": "25fde7e9ba3d3c758a097dec359a48ad009b95d12e23b2a1cecb1bc5fc061de6",
+  "schema": "sno.zerogpu-portability-baseline.v1",
+  "scope": "bounded 32,64,128-horizon CUDA portability control; not the 8192-step authority and not a performance comparison"
+}