Pith Number

pith:FRT6WIRE

pith:2004:FRT6WIREMBUHBFWW77WFTMMYKC

not attested not anchored not stored refs pending

Infinitely many two-variable generalisations of the Alexander-Conway polynomial

Atsushi Ishii, David De Wit, Jon Links

arxiv:math/0405403 v6 · 2004-05-21 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRT6WIREMBUHBFWW77WFTMMYKC}

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	2026-05-18T02:41:32.425717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c67eb222460687096d6ffec59b19850834d997b89df48021df2ca586b1c9050

Aliases

arxiv: math/0405403 · arxiv_version: math/0405403v6 · doi: 10.48550/arxiv.math/0405403 · pith_short_12: FRT6WIREMBUH · pith_short_16: FRT6WIREMBUHBFWW · pith_short_8: FRT6WIRE

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/FRT6WIREMBUHBFWW77WFTMMYKC \
  | 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: 2c67eb222460687096d6ffec59b19850834d997b89df48021df2ca586b1c9050

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8dda0f9e86a92bea386273856c7b6e74045ec2f36b901e3a6e3e2520509bde9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2004-05-21T04:14:52Z",
    "title_canon_sha256": "b049ef2e4c12a5ed4ce27cf3322db4d020f38364b92c1250a7aff76fb2f152d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0405403",
    "kind": "arxiv",
    "version": 6
  }
}