Pith Number

pith:FEWRYSZL

pith:2017:FEWRYSZLM6DUSKHL3LHPKCIMJZ

not attested not anchored not stored refs pending

An optical solution for the set splitting problem

Mihai Oltean

arxiv:1712.00651 v1 · 2017-12-02 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FEWRYSZLM6DUSKHL3LHPKCIMJZ}

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	2026-05-18T00:29:02.295342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

292d1c4b2b67874928ebdacef5090c4e5430669f55d23c545b7fe8361f104a42

Aliases

arxiv: 1712.00651 · arxiv_version: 1712.00651v1 · doi: 10.48550/arxiv.1712.00651 · pith_short_12: FEWRYSZLM6DU · pith_short_16: FEWRYSZLM6DUSKHL · pith_short_8: FEWRYSZL

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/FEWRYSZLM6DUSKHL3LHPKCIMJZ \
  | 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: 292d1c4b2b67874928ebdacef5090c4e5430669f55d23c545b7fe8361f104a42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5455e85108335d86048273831cfcea0cd24500a7ef552158c00b3eab6d0a8ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2017-12-02T18:13:07Z",
    "title_canon_sha256": "b400efa309e97b9c3221376ade61baf5096a0b1fecfd64a45b35cb7c5f4b762b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.00651",
    "kind": "arxiv",
    "version": 1
  }
}