Pith Number

pith:DMWHJPY4

pith:2006:DMWHJPY4PDXBXZGKUYVEDA35TM

not attested not anchored not stored refs pending

Nontrivial Alexander polynomials of knots and links

Stefan Friedl, Stefano Vidussi

arxiv:math/0606575 v2 · 2006-06-23 · 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{DMWHJPY4PDXBXZGKUYVEDA35TM}

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	2026-05-17T23:57:44.767488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b2c74bf1c78ee1be4caa62a41837d9b1353897bfb71d182dab3c0936716a7fb

Aliases

arxiv: math/0606575 · arxiv_version: math/0606575v2 · doi: 10.48550/arxiv.math/0606575 · pith_short_12: DMWHJPY4PDXB · pith_short_16: DMWHJPY4PDXBXZGK · pith_short_8: DMWHJPY4

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/DMWHJPY4PDXBXZGKUYVEDA35TM \
  | 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: 1b2c74bf1c78ee1be4caa62a41837d9b1353897bfb71d182dab3c0936716a7fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5ff70b2810968eff707e9cd290a9d7cc9e01f797e54ce903fe0edbfaca69888",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2006-06-23T00:29:26Z",
    "title_canon_sha256": "c13ebe3fec2e104101816f60a8b813eb052e37ba30c07ffc0035d3e82d949c55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0606575",
    "kind": "arxiv",
    "version": 2
  }
}