Pith Number

pith:CTDNC4DZ

pith:2019:CTDNC4DZ4IPKXI4J4DQ7XM2MMS

not attested not anchored not stored refs pending

Tight Bounds for Online Edge Coloring

Binghui Peng, David Wajc, Ilan Reuven Cohen

arxiv:1904.09222 v1 · 2019-04-19 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CTDNC4DZ4IPKXI4J4DQ7XM2MMS}

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	2026-05-17T23:48:07.992884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14c6d17079e21eaba389e0e1fbb34c64981a9847bd85b1107df7e40706d5d356

Aliases

arxiv: 1904.09222 · arxiv_version: 1904.09222v1 · doi: 10.48550/arxiv.1904.09222 · pith_short_12: CTDNC4DZ4IPK · pith_short_16: CTDNC4DZ4IPKXI4J · pith_short_8: CTDNC4DZ

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/CTDNC4DZ4IPKXI4J4DQ7XM2MMS \
  | 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: 14c6d17079e21eaba389e0e1fbb34c64981a9847bd85b1107df7e40706d5d356

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46c5046cc6d553d5f41f7c74c16bb02901393cacb06e3746cf1fe824d5fe7478",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-04-19T15:09:14Z",
    "title_canon_sha256": "61d6558887e701d7d63de8f9a9007f379e182c294e85928299b64a0658d3563a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09222",
    "kind": "arxiv",
    "version": 1
  }
}