Pith Number

pith:5NQXOPJ4

pith:2015:5NQXOPJ4WC3W33EV2IUNFYCZJ7

not attested not anchored not stored refs pending

The one-dimensional Euclidean domain: Finitely many obstructions are not enough

Gerhard J. Woeginger, Jiehua Chen, Kirk Pruhs

arxiv:1506.03838 v1 · 2015-06-11 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5NQXOPJ4WC3W33EV2IUNFYCZJ7}

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	2026-05-18T01:51:49.094092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb61773d3cb0b76dec95d228d2e0594fc98504c07597a80d3451427774e1b3f3

Aliases

arxiv: 1506.03838 · arxiv_version: 1506.03838v1 · doi: 10.48550/arxiv.1506.03838 · pith_short_12: 5NQXOPJ4WC3W · pith_short_16: 5NQXOPJ4WC3W33EV · pith_short_8: 5NQXOPJ4

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/5NQXOPJ4WC3W33EV2IUNFYCZJ7 \
  | 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: eb61773d3cb0b76dec95d228d2e0594fc98504c07597a80d3451427774e1b3f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f27c31239a49d940ea27ea8484cc603d6dc71ba891ad9a9a877f78c5a33a5f68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2015-06-11T21:06:43Z",
    "title_canon_sha256": "b191892453ffcfe1b4743745d2c29ce131d3faad1f4cf587c262c2e85890e627"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03838",
    "kind": "arxiv",
    "version": 1
  }
}