Pith Number

pith:WDMEU5OZ

pith:2015:WDMEU5OZAC7EGYLVTDDHIC5EEE

not attested not anchored not stored refs pending

Fast Parallel Fixed-Parameter Algorithms via Color Coding

Christoph Stockhusen, Max Bannach, Till Tantau

arxiv:1509.06984 v1 · 2015-09-23 · cs.CC · 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{WDMEU5OZAC7EGYLVTDDHIC5EEE}

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	2026-05-18T01:32:17.321018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0d84a75d900be43617598c6740ba42133d4dead676aef000bf82e03e58a49e5

Aliases

arxiv: 1509.06984 · arxiv_version: 1509.06984v1 · doi: 10.48550/arxiv.1509.06984 · pith_short_12: WDMEU5OZAC7E · pith_short_16: WDMEU5OZAC7EGYLV · pith_short_8: WDMEU5OZ

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/WDMEU5OZAC7EGYLVTDDHIC5EEE \
  | 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: b0d84a75d900be43617598c6740ba42133d4dead676aef000bf82e03e58a49e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a10880c7c4ded5c78ba8869b248d72f799ae1ef2546892003156c704b2b5dc1",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-09-23T13:55:36Z",
    "title_canon_sha256": "b57852dbbcc2f2b2754d0c690e616c0466cfd3c563728e57de9f020c5d3a572f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06984",
    "kind": "arxiv",
    "version": 1
  }
}