Pith Number

pith:BAXDDO7T

pith:2004:BAXDDO7TSVGOJ7ZOAQZ6NCDAAX

not attested not anchored not stored refs pending

A two component link with Alexander polynomial one is concordant to the Hopf link

James F. Davis

arxiv:math/0408226 v2 · 2004-08-17 · 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{BAXDDO7TSVGOJ7ZOAQZ6NCDAAX}

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	2026-05-18T01:25:48.045766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

082e31bbf3954ce4ff2e0433e6886005d1e09af2f28cf9f3b95ea85a09fc4b80

Aliases

arxiv: math/0408226 · arxiv_version: math/0408226v2 · doi: 10.48550/arxiv.math/0408226 · pith_short_12: BAXDDO7TSVGO · pith_short_16: BAXDDO7TSVGOJ7ZO · pith_short_8: BAXDDO7T

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/BAXDDO7TSVGOJ7ZOAQZ6NCDAAX \
  | 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: 082e31bbf3954ce4ff2e0433e6886005d1e09af2f28cf9f3b95ea85a09fc4b80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf5efdc44bd81ea33b901ae3cc661bf7d48bef5bbafdac0cf473959ada6b2e44",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2004-08-17T19:58:58Z",
    "title_canon_sha256": "abf06c5e14bbfdd40ee6d731cf55dbbc5363c0c08c2b97c4b8962057b848e5b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0408226",
    "kind": "arxiv",
    "version": 2
  }
}