Pith Number

pith:7SJYUKRK

pith:1995:7SJYUKRKPQLFT63UTMTGP2FWTX

not attested not anchored not stored refs pending

Scenic trails ascending from sea-level Nim to alpine chess

Aviezri S. Fraenkel

arxiv:math/9503222 v1 · 1995-03-31 · 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{7SJYUKRKPQLFT63UTMTGP2FWTX}

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	2026-05-18T01:05:50.350579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc938a2a2a7c1659fb749b2667e8b69de4b7aec3b172095fc189279717ce4a84

Aliases

arxiv: math/9503222 · arxiv_version: math/9503222v1 · doi: 10.48550/arxiv.math/9503222 · pith_short_12: 7SJYUKRKPQLF · pith_short_16: 7SJYUKRKPQLFT63U · pith_short_8: 7SJYUKRK

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/7SJYUKRKPQLFT63UTMTGP2FWTX \
  | 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: fc938a2a2a7c1659fb749b2667e8b69de4b7aec3b172095fc189279717ce4a84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c60a9b50f4d6c33db03eb749bf987409b1d3a042a35f399396511014185eff8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "1995-03-31T00:00:00Z",
    "title_canon_sha256": "fb87b759f27129a1493745ad13bc9cd2b9e8d913016653aeb27d1ad6f939fd00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9503222",
    "kind": "arxiv",
    "version": 1
  }
}