Pith Number

pith:DEQSZLX2

pith:2015:DEQSZLX2F6HKZXCOOUAVHU7GZV

not attested not anchored not stored refs pending

The maximum-likelihood decoding threshold for graphic codes

Peter Nelson, Stefan H.M. van Zwam

arxiv:1504.05225 v2 · 2015-04-20 · cs.IT · math.CO · 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{DEQSZLX2F6HKZXCOOUAVHU7GZV}

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	2026-05-18T01:17:05.451902Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19212caefa2f8eacdc4e750153d3e6cd65efc81c351283034e455558b61a1035

Aliases

arxiv: 1504.05225 · arxiv_version: 1504.05225v2 · doi: 10.48550/arxiv.1504.05225 · pith_short_12: DEQSZLX2F6HK · pith_short_16: DEQSZLX2F6HKZXCO · pith_short_8: DEQSZLX2

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/DEQSZLX2F6HKZXCOOUAVHU7GZV \
  | 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: 19212caefa2f8eacdc4e750153d3e6cd65efc81c351283034e455558b61a1035

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac84e2a86490fe71ec4ebe89ddb8fc7489d93a402930e502b3a26c93f8ab65d5",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-20T20:47:17Z",
    "title_canon_sha256": "8a4ff63eca3ff531f8f8393177de6d6942694909e76615299cae3460f31fde81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05225",
    "kind": "arxiv",
    "version": 2
  }
}