Pith Number

pith:QI4HD4QK

pith:2017:QI4HD4QKVJECXJB2PAZQDBHGBS

not attested not anchored not stored refs pending

Asymptotically optimal bound on the adjacent vertex distinguishing edge choice number

Jakub Kwa\'sny, Jakub Przyby{\l}o

arxiv:1705.01637 v1 · 2017-05-03 · 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{QI4HD4QKVJECXJB2PAZQDBHGBS}

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	2026-05-17T23:56:55.979566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

823871f20aaa482ba43a78330184e60c940187929a433673f19a3516e9ee6ed0

Aliases

arxiv: 1705.01637 · arxiv_version: 1705.01637v1 · doi: 10.48550/arxiv.1705.01637 · pith_short_12: QI4HD4QKVJEC · pith_short_16: QI4HD4QKVJECXJB2 · pith_short_8: QI4HD4QK

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/QI4HD4QKVJECXJB2PAZQDBHGBS \
  | 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: 823871f20aaa482ba43a78330184e60c940187929a433673f19a3516e9ee6ed0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b5a9f4ffa68de4a81242b40a3ea1ca575442c67b20127aca1ca01c9a9dc7bfb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-03T21:51:09Z",
    "title_canon_sha256": "c46d942b047bf81de06863328189ca53ed3847fa5a021d818e4b345e4cb1320e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.01637",
    "kind": "arxiv",
    "version": 1
  }
}