Pith Number

pith:5MHYL5HX

pith:2016:5MHYL5HX7ERFVMLCCAJVNLVAFA

not attested not anchored not stored refs pending

The twist for positroid varieties

David E Speyer, Greg Muller

arxiv:1606.08383 v1 · 2016-06-27 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5MHYL5HX7ERFVMLCCAJVNLVAFA}

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	2026-05-18T00:29:55.928949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb0f85f4f7f9225ab162101356aea02822d65e33ef1afd12bd04c99f31053f5f

Aliases

arxiv: 1606.08383 · arxiv_version: 1606.08383v1 · doi: 10.48550/arxiv.1606.08383 · pith_short_12: 5MHYL5HX7ERF · pith_short_16: 5MHYL5HX7ERFVMLC · pith_short_8: 5MHYL5HX

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/5MHYL5HX7ERFVMLCCAJVNLVAFA \
  | 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: eb0f85f4f7f9225ab162101356aea02822d65e33ef1afd12bd04c99f31053f5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c931603937453b9cc00e4be099d48435731723baeaac0e24bd3583581f9bed36",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-06-27T17:47:45Z",
    "title_canon_sha256": "59b666a2565e4224f633798ae11d63905a09e3b3f1444d7ced950c003106574d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08383",
    "kind": "arxiv",
    "version": 1
  }
}