Pith Number

pith:WK4ZTVJX

pith:2016:WK4ZTVJXNRVQ735NXRF2JDD5WX

not attested not anchored not stored refs pending

Reversible filters

Alan Dow, Rodrigo Hern\'andez-Guti\'errez

arxiv:1601.04081 v2 · 2016-01-15 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WK4ZTVJXNRVQ735NXRF2JDD5WX}

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	2026-05-18T00:05:34.801862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2b999d5376c6b0fefadbc4ba48c7db5d3104670e18ed6d79239685e04ca6988

Aliases

arxiv: 1601.04081 · arxiv_version: 1601.04081v2 · doi: 10.48550/arxiv.1601.04081 · pith_short_12: WK4ZTVJXNRVQ · pith_short_16: WK4ZTVJXNRVQ735N · pith_short_8: WK4ZTVJX

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/WK4ZTVJXNRVQ735NXRF2JDD5WX \
  | 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: b2b999d5376c6b0fefadbc4ba48c7db5d3104670e18ed6d79239685e04ca6988

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2237a7f10515007c0d90ad62390462e75b836022f963bdbbdc3804df64484122",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2016-01-15T21:25:09Z",
    "title_canon_sha256": "029d14535185c7884a7522968b648dc30853fc7c5e65ff6cbbb2a9331605183b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.04081",
    "kind": "arxiv",
    "version": 2
  }
}