Pith Number

pith:GQPM6Y62

pith:2013:GQPM6Y62RNKQQSJHF436XSTHCM

not attested not anchored not stored refs pending

A new proof of Vassiliev's conjecture

Igor Nikonov

arxiv:1306.5521 v2 · 2013-06-24 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GQPM6Y62RNKQQSJHF436XSTHCM}

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	2026-05-18T02:55:11.326170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

341ecf63da8b550849272f37ebca67130aaf410ded725dff9f1bfda8dbb4ade3

Aliases

arxiv: 1306.5521 · arxiv_version: 1306.5521v2 · doi: 10.48550/arxiv.1306.5521 · pith_short_12: GQPM6Y62RNKQ · pith_short_16: GQPM6Y62RNKQQSJH · pith_short_8: GQPM6Y62

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/GQPM6Y62RNKQQSJHF436XSTHCM \
  | 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: 341ecf63da8b550849272f37ebca67130aaf410ded725dff9f1bfda8dbb4ade3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5c657137af015876787f916853bede2ec2826474a266384499be808027294e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-06-24T07:16:09Z",
    "title_canon_sha256": "644b7c5bb9b0bb49fb3148ccfb8115336aa78bda337facc1c267e68bf3c95923"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5521",
    "kind": "arxiv",
    "version": 2
  }
}