Touchstone Assay
Dated SIU — SIU-2026a
$0.0014
24 Aug 2026 provisional
— 0.0% since 22 Aug 2026 — Unchanged from the previous print.
Equal weighting, disclosed: basket costs span 3.8× across the 4 qualifying constituents. 2 of 4 constituents (50%) sit at or above the mean basket cost and together account for 76% of the summed basket cost Dated SIU is computed from — equal weighting still gives each of them the same 1÷4 nominal share. Dated SIU therefore tracks the more expensive end of the basket more closely than a demand-weighted index would. See the methodology's Weighting section, and Frontier SIU / Commodity SIU, the tier prints published alongside this one for exactly this reason.

Exchange-rate table

ModelUSD / SIUSpread to indexSIU per $1
deepseek-v3.2 $0.0018 +28% 547.5
llama-3.3-70b-cloudflare — — —
undefined class: T2 (no run records for this class)
llama-3.3-70b-deepinfra $0.0007 -50% 1407.1
llama-3.3-70b-novita — — —
undefined class: T2 (no run records for this class)
mistral-small-3.2-24b-instruct $0.0007 -54% 1522.1
qwen-2.5-72b-instruct $0.0025 +76% 396.5

Floor & market spread

Not yet published — the floor needs a measured hardware-rental rate for the reference configuration, which this print does not yet include.

Sensitivity

The print recomputed under alternative cache and batch-discount policies, so the effect of those policy choices is stated rather than hidden inside one number.

Policy variantDated SIUDeltaApplies to
cache-enabled: 40% of T2 input at 10% of input price $0.0010 -33.1% deepseek-v3.2, llama-3.3-70b-cloudflare, llama-3.3-70b-deepinfra, llama-3.3-70b-novita, mistral-small-3.2-24b-instruct, qwen-2.5-72b-instruct
batch-discount: 50% off input and output $0.0007 -50.0% deepseek-v3.2, llama-3.3-70b-cloudflare, llama-3.3-70b-deepinfra, llama-3.3-70b-novita, mistral-small-3.2-24b-instruct, qwen-2.5-72b-instruct

Methodology, signature & anchor

Methodology
v0-draft
Cost of production
$0.0949
Signature
0xf8636e3c…87daacc6
Public key
0x030c598e…e25cb299
Anchor tx
0x43111e8c…2d2e0f0b (base-sepolia)
Raw runs
https://github.com/petrkrulis2022/dated-siu-inference/tree/main/data/runs/2026-08-24

Verify this yourself

Don't take this page's word for it — every value below is checkable independently.

Body hash
0x851a7440…24b8b389
Recovered signer
0x284ff2f8…d48f845a — matches the TouchstoneAttestation publisher below
TouchstoneAttestation
0xF6070179…93297190 (base-sepolia)
  1. Recompute this print's body hash from the published JSON (JCS-canonicalised, signature fields excluded) and confirm it matches the body hash shown above.
  2. Open the contract link above on Blockscout, go to "Read Contract", call publisher(), and confirm it matches the recovered signer shown above.
  3. On the same "Read Contract" tab, call postedAt(bytes32) with the body hash shown above and confirm it returns a non-zero timestamp.

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