Pith Number

pith:A7A6YKHS

pith:2017:A7A6YKHSOKGU4B6EYII5Y2Z4VC

not attested not anchored not stored refs pending

New skein invariants of links

Louis H. Kauffman, Sofia Lambropoulou

arxiv:1703.03655 v6 · 2017-03-10 · 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{A7A6YKHSOKGU4B6EYII5Y2Z4VC}

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	2026-05-17T23:49:33.968511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07c1ec28f2728d4e07c4c211dc6b3ca8915974bafac8b35ddce81cf0caf0f631

Aliases

arxiv: 1703.03655 · arxiv_version: 1703.03655v6 · doi: 10.48550/arxiv.1703.03655 · pith_short_12: A7A6YKHSOKGU · pith_short_16: A7A6YKHSOKGU4B6E · pith_short_8: A7A6YKHS

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/A7A6YKHSOKGU4B6EYII5Y2Z4VC \
  | 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: 07c1ec28f2728d4e07c4c211dc6b3ca8915974bafac8b35ddce81cf0caf0f631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7539d1941f708bd0676c9114e24c2d86e2f0e597496fcce7d8815b15faf2991c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-03-10T12:38:52Z",
    "title_canon_sha256": "2a4dc504f9d6fea16f3722885b8512878181dbb6314d26d27d9e89642ffb0335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03655",
    "kind": "arxiv",
    "version": 6
  }
}