Pith Number

pith:NRHNKRXA

pith:2019:NRHNKRXACEJOSNOTW7YZAN64EZ

not attested not anchored not stored refs pending

Compactness properties defined by open-point games

Alejandro Dorantes-Aldama, Dmitri Shakhmatov

arxiv:1906.02857 v1 · 2019-06-07 · math.GN · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NRHNKRXACEJOSNOTW7YZAN64EZ}

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	2026-05-17T23:43:57.261769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c4ed546e01112e935d3b7f19037dc2648de74ee827bf5c870de1bf00933f6fc

Aliases

arxiv: 1906.02857 · arxiv_version: 1906.02857v1 · doi: 10.48550/arxiv.1906.02857 · pith_short_12: NRHNKRXACEJO · pith_short_16: NRHNKRXACEJOSNOT · pith_short_8: NRHNKRXA

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/NRHNKRXACEJOSNOTW7YZAN64EZ \
  | 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: 6c4ed546e01112e935d3b7f19037dc2648de74ee827bf5c870de1bf00933f6fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e66621cdeb276bec02b5e962b642dffb5eccc52f64c83bd92cedbfc02dc9bb6",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2019-06-07T01:47:44Z",
    "title_canon_sha256": "b769a4f002606fd0144db21ee0d75607bc8166a7a0283dcb84065e4930482a4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02857",
    "kind": "arxiv",
    "version": 1
  }
}