Pith Number

pith:C6EUAFLA

pith:2016:C6EUAFLAVHVNN2Y5PNTRDE4HGD

not attested not anchored not stored refs pending

Parameterized Complexity and Approximation Issues for the Colorful Components Problems

Florian Sikora, Riccardo Dondi

arxiv:1605.03071 v2 · 2016-05-10 · 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{C6EUAFLAVHVNN2Y5PNTRDE4HGD}

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	2026-05-18T00:12:57.190882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1789401560a9ead6eb1d7b6711938730e54e57842faa6a4b74740f2ca8b3197c

Aliases

arxiv: 1605.03071 · arxiv_version: 1605.03071v2 · doi: 10.48550/arxiv.1605.03071 · pith_short_12: C6EUAFLAVHVN · pith_short_16: C6EUAFLAVHVNN2Y5 · pith_short_8: C6EUAFLA

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/C6EUAFLAVHVNN2Y5PNTRDE4HGD \
  | 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: 1789401560a9ead6eb1d7b6711938730e54e57842faa6a4b74740f2ca8b3197c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56e7d2d31707694995a47aee7c3781e9808307875067ffef17683e1f01ac8b6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-05-10T15:55:58Z",
    "title_canon_sha256": "daacc1b4dccfa952dc8201622f2199b3dfaedf661dfe0da9111edd7a35ca16d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.03071",
    "kind": "arxiv",
    "version": 2
  }
}