Pith Number

pith:5XTXC7ME

pith:2008:5XTXC7METX7FJMEX73SIVYUJWA

not attested not anchored not stored refs pending

Bundles of coloured posets and a Leray-Serre spectral sequence for Khovanov homology

Brent Everitt, Paul Turner

arxiv:0808.1686 v2 · 2008-08-12 · math.GT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5XTXC7METX7FJMEX73SIVYUJWA}

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	2026-05-18T04:01:26.779491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ede7717d849dfe54b097fee48ae289b010eb3efa3b1eb0be74842ba186fb3404

Aliases

arxiv: 0808.1686 · arxiv_version: 0808.1686v2 · doi: 10.48550/arxiv.0808.1686 · pith_short_12: 5XTXC7METX7F · pith_short_16: 5XTXC7METX7FJMEX · pith_short_8: 5XTXC7ME

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/5XTXC7METX7FJMEX73SIVYUJWA \
  | 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: ede7717d849dfe54b097fee48ae289b010eb3efa3b1eb0be74842ba186fb3404

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "366093e9d766920923e44ab43d39d03924464454e75a5fc73007e97ae2a7d4ca",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2008-08-12T15:46:44Z",
    "title_canon_sha256": "aee00910bdf0d42e82f71ac6fc723bb733d1f0d6c3e243fdbe09cfb69a6a34d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.1686",
    "kind": "arxiv",
    "version": 2
  }
}