Pith Number

pith:2VRQC4XA

pith:2010:2VRQC4XA2ITIRGYZCBSSWTKYKZ

not attested not anchored not stored refs pending

On fault-tolerance with noisy and slow measurements

Gavin K. Brennen, Gerardo A. Paz-Silva, Jason Twamley

arxiv:1002.1536 v3 · 2010-02-08 · 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{2VRQC4XA2ITIRGYZCBSSWTKYKZ}

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	2026-05-18T04:41:35.835471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5630172e0d226889b1910652b4d585640f233e9bd1a8f1ae22b31698e38696a

Aliases

arxiv: 1002.1536 · arxiv_version: 1002.1536v3 · doi: 10.48550/arxiv.1002.1536 · pith_short_12: 2VRQC4XA2ITI · pith_short_16: 2VRQC4XA2ITIRGYZ · pith_short_8: 2VRQC4XA

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/2VRQC4XA2ITIRGYZCBSSWTKYKZ \
  | 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: d5630172e0d226889b1910652b4d585640f233e9bd1a8f1ae22b31698e38696a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7773b66a6022a619cbef4e8b100c7b078835548438151d554cafb4378ac23492",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-08T07:41:48Z",
    "title_canon_sha256": "fbbfb158db46143fc082f04499a39b58156ef580b62b0bfd31806687ab1c1689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.1536",
    "kind": "arxiv",
    "version": 3
  }
}