Pith Number

pith:Z74TN3FA

pith:2021:Z74TN3FAK35IVPDIIRSG7DHHGH

not attested not anchored not stored refs pending

Size Matters

Justin Shenk, Ludwdig Schallner, Mats L. Richter, Ulf Krumnack, Wolf Byttner

arxiv:2102.01582 v2 · 2021-02-02 · cs.LG · cs.AI · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z74TN3FAK35IVPDIIRSG7DHHGH}

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	2026-07-05T03:21:43.213917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cff936eca056fa8abc6844646f8ce731e81661554aa657e33f5ce084f926f268

Aliases

arxiv: 2102.01582 · arxiv_version: 2102.01582v2 · doi: 10.48550/arxiv.2102.01582 · pith_short_12: Z74TN3FAK35I · pith_short_16: Z74TN3FAK35IVPDI · pith_short_8: Z74TN3FA

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/Z74TN3FAK35IVPDIIRSG7DHHGH \
  | 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: cff936eca056fa8abc6844646f8ce731e81661554aa657e33f5ce084f926f268

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be7c6de61dba7b3c3369e80dd46447669ec989d0164ef228085d068c0c4b609c",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-02-02T16:17:52Z",
    "title_canon_sha256": "429bee261809e10271457c635c32a29da9948670f7d4de15b7d209a316f73267"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.01582",
    "kind": "arxiv",
    "version": 2
  }
}