Pith Number

pith:S6WMLFF2

pith:2016:S6WMLFF24SAFXXGHPSGZFYDJKE

not attested not anchored not stored refs pending

Hedetniemi's conjecture and adjoint functors in thin categories

Claude Tardif, Jan Foniok

arxiv:1608.02918 v1 · 2016-08-09 · math.CO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S6WMLFF24SAFXXGHPSGZFYDJKE}

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	2026-05-18T01:09:33.351924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97acc594bae4805bdcc77c8d92e069513fea1d9e6a5e788799cd3d6423c0c3f2

Aliases

arxiv: 1608.02918 · arxiv_version: 1608.02918v1 · doi: 10.48550/arxiv.1608.02918 · pith_short_12: S6WMLFF24SAF · pith_short_16: S6WMLFF24SAFXXGH · pith_short_8: S6WMLFF2

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/S6WMLFF24SAFXXGHPSGZFYDJKE \
  | 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: 97acc594bae4805bdcc77c8d92e069513fea1d9e6a5e788799cd3d6423c0c3f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fee04989cbc6c75ac6d6b66f84159b3ff483d563801d65b62009e27fe77b1e73",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-08-09T19:05:22Z",
    "title_canon_sha256": "be23dfb09e5e4181d46682b4ccada6902b50b68364ecb9318edaf67cec93d5d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.02918",
    "kind": "arxiv",
    "version": 1
  }
}