Pith Number

pith:HZZ4NUJA

pith:2019:HZZ4NUJA3TH43M7Y7ZCFJ3P3GK

not attested not anchored not stored refs pending

From Schritte and Wechsel to Coxeter Groups

Markus Schmidmeier

arxiv:1901.05106 v3 · 2019-01-16 · 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{HZZ4NUJA3TH43M7Y7ZCFJ3P3GK}

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	2026-05-17T23:42:13.817560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e73c6d120dccfcdb3f8fe4454edfb32bb85d9ffd23ba6638c3c82118f92c191

Aliases

arxiv: 1901.05106 · arxiv_version: 1901.05106v3 · doi: 10.48550/arxiv.1901.05106 · pith_short_12: HZZ4NUJA3TH4 · pith_short_16: HZZ4NUJA3TH43M7Y · pith_short_8: HZZ4NUJA

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/HZZ4NUJA3TH43M7Y7ZCFJ3P3GK \
  | 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: 3e73c6d120dccfcdb3f8fe4454edfb32bb85d9ffd23ba6638c3c82118f92c191

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb88122eb2fad1e69278511c9d82f2cf64615d09dd9989a879f2bb609905d1b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-01-16T01:49:54Z",
    "title_canon_sha256": "4e1355cbb40e246359d38616c7f50db8b8a24dffeec76a4efe108706927d5e6d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05106",
    "kind": "arxiv",
    "version": 3
  }
}