Pith Number

pith:6WVCFCXS

pith:2020:6WVCFCXS7O3JVM2OUBRLA7GMTJ

not attested not anchored not stored refs pending

Goeritz groups of bridge decompositions

Daiki Iguchi, Eiko Kin, Susumu Hirose, Yuya Koda

arxiv:2004.03098 v1 · 2020-04-07 · 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{6WVCFCXS7O3JVM2OUBRLA7GMTJ}

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	2026-07-05T00:53:23.207130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5aa228af2fbb69ab34ea062b07ccc9a702d423e69158708e1119f3b2cd630c4

Aliases

arxiv: 2004.03098 · arxiv_version: 2004.03098v1 · doi: 10.48550/arxiv.2004.03098 · pith_short_12: 6WVCFCXS7O3J · pith_short_16: 6WVCFCXS7O3JVM2O · pith_short_8: 6WVCFCXS

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/6WVCFCXS7O3JVM2OUBRLA7GMTJ \
  | 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: f5aa228af2fbb69ab34ea062b07ccc9a702d423e69158708e1119f3b2cd630c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9eee7d4a4890bd160e3d3df4678628fb6b24ac484e7927383dd08372cef06751",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2020-04-07T03:05:58Z",
    "title_canon_sha256": "1c909952631667fb0c904369c3a6e625cce657b90ebaad915f6cd4f8a1b593a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.03098",
    "kind": "arxiv",
    "version": 1
  }
}