Pith Number

pith:CIKSEA2R

pith:2013:CIKSEA2RYD73NSUZZAC3YCALHR

not attested not anchored not stored refs pending

The inapproximability for the (0,1)-additive number

Ali Dehghan, Arash Ahadi

arxiv:1306.0182 v2 · 2013-06-02 · math.CO · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIKSEA2RYD73NSUZZAC3YCALHR}

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	2026-05-18T01:11:08.817156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1215220351c0ffb6ca99c805bc080b3c6595af4fdefae1bf09aee3eb092799e8

Aliases

arxiv: 1306.0182 · arxiv_version: 1306.0182v2 · doi: 10.48550/arxiv.1306.0182 · pith_short_12: CIKSEA2RYD73 · pith_short_16: CIKSEA2RYD73NSUZ · pith_short_8: CIKSEA2R

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/CIKSEA2RYD73NSUZZAC3YCALHR \
  | 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: 1215220351c0ffb6ca99c805bc080b3c6595af4fdefae1bf09aee3eb092799e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9bd7239cd4c36c85586e3539e87d44946aadba2ad4b36c1bffe8fed35422f19",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-06-02T07:56:50Z",
    "title_canon_sha256": "65c45c304dd966dd2a14b255e44b50fceadd894d1019ba5ef60f1d88efb31f59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0182",
    "kind": "arxiv",
    "version": 2
  }
}