Pith Number

pith:UHT63GVF

pith:2010:UHT63GVFQDVS5YFZVRKPE6DEKL

not attested not anchored not stored refs pending

On the interlace polynomials

Lorenzo Traldi

arxiv:1008.0091 v7 · 2010-07-31 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHT63GVFQDVS5YFZVRKPE6DEKL}

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	2026-05-18T03:45:10.940292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1e7ed9aa580eb2ee0b9ac54f2786452e37fb05f8b760e9d099d459a4b0df76f

Aliases

arxiv: 1008.0091 · arxiv_version: 1008.0091v7 · doi: 10.48550/arxiv.1008.0091 · pith_short_12: UHT63GVFQDVS · pith_short_16: UHT63GVFQDVS5YFZ · pith_short_8: UHT63GVF

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/UHT63GVFQDVS5YFZVRKPE6DEKL \
  | 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: a1e7ed9aa580eb2ee0b9ac54f2786452e37fb05f8b760e9d099d459a4b0df76f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32fae432eb03d222cf5f54c73d87d2ddb7da2710956f900fa6e7261b5aa09d74",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-07-31T13:43:38Z",
    "title_canon_sha256": "4916f69bd4abd6de44283233b060a35ed232bc2835fa4375a0da51cca34ed19a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.0091",
    "kind": "arxiv",
    "version": 7
  }
}