Pith Number

pith:RIJHDOOD

pith:2010:RIJHDOODT7HTIE7C2N757UK7VA

not attested not anchored not stored refs pending

Informal Control code logic

Jan A. Bergstra

arxiv:1009.2902 v1 · 2010-09-15 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIJHDOODT7HTIE7C2N757UK7VA}

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	2026-05-18T04:40:55.296230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a1271b9c39fcf3413e2d37fdfd15fa81ba5212a40a8050e287aad9a309365d4

Aliases

arxiv: 1009.2902 · arxiv_version: 1009.2902v1 · doi: 10.48550/arxiv.1009.2902 · pith_short_12: RIJHDOODT7HT · pith_short_16: RIJHDOODT7HTIE7C · pith_short_8: RIJHDOOD

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/RIJHDOODT7HTIE7C2N757UK7VA \
  | 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: 8a1271b9c39fcf3413e2d37fdfd15fa81ba5212a40a8050e287aad9a309365d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb50832df9fcf333d7107288ee9171e4d8a7144a979c6345e2e281b1258d3f68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2010-09-15T12:02:04Z",
    "title_canon_sha256": "2fe3c1d9ca4dcc71730546a072489ccff4adfb61ec0d4932e9c4f3e255b7d8be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2902",
    "kind": "arxiv",
    "version": 1
  }
}