Pith Number

pith:6OK3XZSV

pith:2022:6OK3XZSV6MUDYNAYUG6NIIWRQ7

not attested not anchored not stored refs pending

Two-sided Robustly Testable Codes

Gleb Kalachev, Pavel Panteleev

arxiv:2206.09973 v3 · 2022-06-20 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6OK3XZSV6MUDYNAYUG6NIIWRQ7}

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	2026-07-05T06:39:49.106186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f395bbe655f3283c3418a1bcd422d187e399aa99d450dff4fb8f0d652b1e07d9

Aliases

arxiv: 2206.09973 · arxiv_version: 2206.09973v3 · doi: 10.48550/arxiv.2206.09973 · pith_short_12: 6OK3XZSV6MUD · pith_short_16: 6OK3XZSV6MUDYNAY · pith_short_8: 6OK3XZSV

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/6OK3XZSV6MUDYNAYUG6NIIWRQ7 \
  | 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: f395bbe655f3283c3418a1bcd422d187e399aa99d450dff4fb8f0d652b1e07d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f4d4f8e21e5470ace38e041db3342587ccf1e293a6f93868c4c5e8315ea250b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2022-06-20T19:28:57Z",
    "title_canon_sha256": "3722d5b3bfebf35a46ec5445fdc3bfe6eff092150e9aec8b49186f4a96437081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.09973",
    "kind": "arxiv",
    "version": 3
  }
}