Pith Number

pith:5H5ECS42

pith:2019:5H5ECS42UOAYHMDCFO3YPLULOA

not attested not anchored not stored refs pending

Superpermutation matrices

Guillaume Dumas

arxiv:1908.04708 v1 · 2019-08-13 · 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{5H5ECS42UOAYHMDCFO3YPLULOA}

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	2026-07-04T23:55:15.864946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9fa414b9aa38183b0622bb787ae8b701b1e3f6bcbb6b9a4ed0b7615b27b6d58

Aliases

arxiv: 1908.04708 · arxiv_version: 1908.04708v1 · doi: 10.48550/arxiv.1908.04708 · pith_short_12: 5H5ECS42UOAY · pith_short_16: 5H5ECS42UOAYHMDC · pith_short_8: 5H5ECS42

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/5H5ECS42UOAYHMDCFO3YPLULOA \
  | 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: e9fa414b9aa38183b0622bb787ae8b701b1e3f6bcbb6b9a4ed0b7615b27b6d58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d2cc85ecd3c43584f723d408ebfed6fd7306dfc97f338ecec3ad538538d89bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-13T15:46:27Z",
    "title_canon_sha256": "7341bfbdc7e83d8e677f5c9eca58aee81e598ff858645a7c1c6c737cab5a1661"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04708",
    "kind": "arxiv",
    "version": 1
  }
}