Pith Number

pith:W4PKMVXS

pith:2026:W4PKMVXSISTEZX3PMC4C3IYK6F

not attested not anchored not stored refs pending

Restrictions on non-Clifford fault tolerance and ruling out beyond-SQL quantum metrology

Constantin Cedillo Vayson de Pradenne, Harald Putterman, Ishaan Kannan, Jordan Cotler

arxiv:2607.27342 v1 · 2026-07-29 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W4PKMVXSISTEZX3PMC4C3IYK6F}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-31T00:10:42.719392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

b71ea656f244a64cdf6f60b82da30af16ac48cd6f2a91e0cb402e3e7b3659381

Aliases

arxiv: 2607.27342 · arxiv_version: 2607.27342v1 · doi: 10.48550/arxiv.2607.27342 · pith_short_12: W4PKMVXSISTE · pith_short_16: W4PKMVXSISTEZX3P · pith_short_8: W4PKMVXS

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/W4PKMVXSISTEZX3PMC4C3IYK6F \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b71ea656f244a64cdf6f60b82da30af16ac48cd6f2a91e0cb402e3e7b3659381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5329e501ae894192614bc071ec06c87afc9c4a2743f4b6ff647f38f1c64e102f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-29T18:01:14Z",
    "title_canon_sha256": "3f2d76887c034a634c95bdaf80146e9da085ec1ac2f9a8dbf310597c455e2341"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27342",
    "kind": "arxiv",
    "version": 1
  }
}