Pith Number

pith:S3CZUHNW

pith:2017:S3CZUHNWSTFY457HJ3AZZV6OCE

not attested not anchored not stored refs pending

A playful note on spanning and surplus edges

Vlada Limic

arxiv:1703.02574 v1 · 2017-03-07 · math.PR · 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{S3CZUHNWSTFY457HJ3AZZV6OCE}

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	2026-05-18T00:49:06.115817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96c59a1db694cb8e77e74ec19cd7ce11296ad9afe7c6f1747e88fba38e8d1096

Aliases

arxiv: 1703.02574 · arxiv_version: 1703.02574v1 · doi: 10.48550/arxiv.1703.02574 · pith_short_12: S3CZUHNWSTFY · pith_short_16: S3CZUHNWSTFY457H · pith_short_8: S3CZUHNW

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/S3CZUHNWSTFY457HJ3AZZV6OCE \
  | 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: 96c59a1db694cb8e77e74ec19cd7ce11296ad9afe7c6f1747e88fba38e8d1096

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09d45709dc46c263288b5083c88d82b574c7eba29af42c544bff1b9a14458164",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2017-03-07T20:14:41Z",
    "title_canon_sha256": "ecd0932d69dace8837b98626db145f6cdc03cff4546d382c07b4765dd0a67eca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02574",
    "kind": "arxiv",
    "version": 1
  }
}