Pith Number

pith:I6S6DK6Z

pith:2019:I6S6DK6Z4SX2SUQECWLHDXHHBH

not attested not anchored not stored refs pending

On a Poincar\'e polynomial from Khovanov homology and Vassiliev invariants

Masaya Kameyama, Noboru Ito

arxiv:1905.05664 v1 · 2019-05-14 · math.GT · hep-th · math-ph · math.MP · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I6S6DK6Z4SX2SUQECWLHDXHHBH}

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	2026-05-17T23:45:03.770683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47a5e1abd9e4afa95204159671dce709d4313177309fb248f8d4680fbb90d138

Aliases

arxiv: 1905.05664 · arxiv_version: 1905.05664v1 · doi: 10.48550/arxiv.1905.05664 · pith_short_12: I6S6DK6Z4SX2 · pith_short_16: I6S6DK6Z4SX2SUQE · pith_short_8: I6S6DK6Z

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/I6S6DK6Z4SX2SUQECWLHDXHHBH \
  | 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: 47a5e1abd9e4afa95204159671dce709d4313177309fb248f8d4680fbb90d138

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e40845387101ef4e09e9290ee89188c24786a81122276e0d51d67eb3ce02f603",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP",
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2019-05-14T15:17:41Z",
    "title_canon_sha256": "5222fbd1516aa182a18bfa2f6e943971df3ce06c2bfd28af04237a019273d34e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05664",
    "kind": "arxiv",
    "version": 1
  }
}