Pith Number

pith:RDJ2K6TW

pith:2016:RDJ2K6TWWNNRV26SHMUC2Q5U6R

not attested not anchored not stored refs pending

The van der Waerden complex

Likith Govindaiah, Margaret Readdy, Peter S. Park, Richard Ehrenborg

arxiv:1605.00663 v2 · 2016-05-02 · math.CO · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RDJ2K6TWWNNRV26SHMUC2Q5U6R}

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	2026-05-18T00:59:25.373709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88d3a57a76b35b1aebd23b282d43b4f46f29ad029b707839fbf50ff422a59bf7

Aliases

arxiv: 1605.00663 · arxiv_version: 1605.00663v2 · doi: 10.48550/arxiv.1605.00663 · pith_short_12: RDJ2K6TWWNNR · pith_short_16: RDJ2K6TWWNNRV26S · pith_short_8: RDJ2K6TW

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/RDJ2K6TWWNNRV26SHMUC2Q5U6R \
  | 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: 88d3a57a76b35b1aebd23b282d43b4f46f29ad029b707839fbf50ff422a59bf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7d3eac2edff2c69a9de8a284e471baa05556723eafea6f23a48890f10cdf93f",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-05-02T20:03:12Z",
    "title_canon_sha256": "4ccc454a927239212908dd71dd6da0a7ff55613920ce28969d46724db610b634"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.00663",
    "kind": "arxiv",
    "version": 2
  }
}