Touchstone Assay
Dated SIU — SIU-2026a
$0.0007
22 Aug 2026 provisional
Superseded by 2026-08-22b — Insufficient qualifying set: only 2 of 6 registered models qualified for this print (below the minimum of 4 — see methodology.md's registry inclusion policy), because the harness ran against an unfunded, free-tier provider key subject to heavy shared rate-limiting. A same-day re-run under a properly funded key qualified 4 of 6. This print is superseded for that reason alone, not because 2026-08-22b produced a different value.
▼ -53.3% since 18 Aug 2026 — Cheaper than the previous print. Falling prices are the expected direction for this index over time.

Exchange-rate table

ModelUSD / SIUSpread to indexSIU per $1
llama-3.3-70b-cloudflare — — —
undefined class: T2 (no run records for this class)
llama-3.3-70b-deepinfra $0.0007 +4% 1408.3
llama-3.3-70b-novita — — —
undefined class: T2 (no run records for this class)
mistral-small-3.2-24b-instruct $0.0007 -4% 1533.4
qwen-2.5-72b-instruct — — —
undefined class: T2 (no run records for this class)

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 $0.0005 -32.7% 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 $0.0003 -50.0% 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
$0.0222
Signature
0x58bfd832…c60bcc58
Public key
0x030c598e…e25cb299
Anchor tx
0x4c1a3a12…acbaae7c (base-sepolia)
Raw runs
https://github.com/petrkrulis2022/dated-siu-inference/tree/main/data/runs/2026-08-22

Verify this yourself

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

Body hash
0x75c49b2f…c7d3b99e
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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