Pith Number

pith:VL3MEION

pith:2015:VL3MEIONNCJ2JHZEFQVRKUKQUR

not attested not anchored not stored refs pending

Some examples due to H. Hironaka

Daniel Barlet

arxiv:1501.01129 v2 · 2015-01-06 · math.AG · math.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{VL3MEIONNCJ2JHZEFQVRKUKQUR}

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	2026-05-18T02:20:12.285163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaf6c221cd6893a49f242c2b155150a447c80ecb46a940d8eacdba7ae5aaebf6

Aliases

arxiv: 1501.01129 · arxiv_version: 1501.01129v2 · doi: 10.48550/arxiv.1501.01129 · pith_short_12: VL3MEIONNCJ2 · pith_short_16: VL3MEIONNCJ2JHZE · pith_short_8: VL3MEION

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/VL3MEIONNCJ2JHZEFQVRKUKQUR \
  | 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: aaf6c221cd6893a49f242c2b155150a447c80ecb46a940d8eacdba7ae5aaebf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73a6c7822f918577d5e10a1e8b5d42fec15b6c484d2b367759bac6383d6118eb",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-01-06T10:28:34Z",
    "title_canon_sha256": "58fc3b9cc3a80ebcf073e94fe893cd5790e71f1119144f6bc7c4295a2798064c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01129",
    "kind": "arxiv",
    "version": 2
  }
}