Pith Number

pith:QRHEU2VE

pith:2018:QRHEU2VE5WYGGR3LA3V54YVSVO

not attested not anchored not stored refs pending

Simple Concurrent Labeling Algorithms for Connected Components

Robert E. Tarjan, S. Cliff Liu

arxiv:1812.06177 v5 · 2018-12-14 · 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{QRHEU2VE5WYGGR3LA3V54YVSVO}

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	2026-07-05T00:45:03.140031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

844e4a6aa4edb063476b06ebde62b2abbc62333121612eec14ec2a29c33cc357

Aliases

arxiv: 1812.06177 · arxiv_version: 1812.06177v5 · doi: 10.48550/arxiv.1812.06177 · pith_short_12: QRHEU2VE5WYG · pith_short_16: QRHEU2VE5WYGGR3L · pith_short_8: QRHEU2VE

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/QRHEU2VE5WYGGR3LA3V54YVSVO \
  | 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: 844e4a6aa4edb063476b06ebde62b2abbc62333121612eec14ec2a29c33cc357

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a153d8d277da1a2551c6dece67622962cd52aab6fc1612008f658b4213af9188",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-12-14T21:40:09Z",
    "title_canon_sha256": "4523009aa13ba772e85dc54ac0ea51487c75fac59b561e8b13374d06519810b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.06177",
    "kind": "arxiv",
    "version": 5
  }
}