Pith Number

pith:55WIWYU5

pith:2013:55WIWYU5Y2XM2M7ONCXBSQXMUA

not attested not anchored not stored refs pending

On the Effect of Data Contamination on Track Purity

Adrien Ickowicz, Jean-Pierre Le Cadre

arxiv:1309.7723 v1 · 2013-09-30 · 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{55WIWYU5Y2XM2M7ONCXBSQXMUA}

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	2026-05-18T03:11:48.514544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef6c8b629dc6aecd33ee68ae1942eca0007b77464dede27a06fc47f97af6bef5

Aliases

arxiv: 1309.7723 · arxiv_version: 1309.7723v1 · doi: 10.48550/arxiv.1309.7723 · pith_short_12: 55WIWYU5Y2XM · pith_short_16: 55WIWYU5Y2XM2M7O · pith_short_8: 55WIWYU5

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/55WIWYU5Y2XM2M7ONCXBSQXMUA \
  | 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: ef6c8b629dc6aecd33ee68ae1942eca0007b77464dede27a06fc47f97af6bef5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d489ad5a8b72162bcefada293fcb1aa2df92dbfcf1022ccc872442b886cb6b31",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-09-30T05:17:25Z",
    "title_canon_sha256": "e3d4dcf649321bf62cca08996946ef46fe06992ff20ad630c24007fcdd68a0cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7723",
    "kind": "arxiv",
    "version": 1
  }
}