Pith Number

pith:43A3XCGX

pith:2019:43A3XCGXJ4G6Y3VIZXY522NX4R

not attested not anchored not stored refs pending

Extremal balleans

Igor Protasov

arxiv:1901.03977 v2 · 2019-01-13 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{43A3XCGXJ4G6Y3VIZXY522NX4R}

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	2026-05-17T23:55:52.813469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6c1bb88d74f0dec6ea8cdf1dd69b7e479f6db201ca56c1623a18dc8e6629e78

Aliases

arxiv: 1901.03977 · arxiv_version: 1901.03977v2 · doi: 10.48550/arxiv.1901.03977 · pith_short_12: 43A3XCGXJ4G6 · pith_short_16: 43A3XCGXJ4G6Y3VI · pith_short_8: 43A3XCGX

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/43A3XCGXJ4G6Y3VIZXY522NX4R \
  | 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: e6c1bb88d74f0dec6ea8cdf1dd69b7e479f6db201ca56c1623a18dc8e6629e78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13027543b115288acc7b7114dbc9bb28171cf160148e077d323ce0593730e77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2019-01-13T13:07:34Z",
    "title_canon_sha256": "a6c27eb426f04470a45f1dd52ed1eca389947ccfa7d6dbe33506e4ce1c5e49eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03977",
    "kind": "arxiv",
    "version": 2
  }
}