Pith Number

pith:DS7L2DNV

pith:2006:DS7L2DNVV22XVJFCOVS4CTBCJG

not attested not anchored not stored refs pending

Ornate necklaces and the homology of the genus one mapping class group

James Conant

arxiv:math/0610143 v1 · 2006-10-04 · math.QA · 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{DS7L2DNVV22XVJFCOVS4CTBCJG}

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	2026-05-18T04:41:54.021758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cbebd0db5aeb57aa4a27565c14c2249b2d0ee41dad46d0314a9823f685f125c

Aliases

arxiv: math/0610143 · arxiv_version: math/0610143v1 · doi: 10.48550/arxiv.math/0610143 · pith_short_12: DS7L2DNVV22X · pith_short_16: DS7L2DNVV22XVJFC · pith_short_8: DS7L2DNV

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/DS7L2DNVV22XVJFCOVS4CTBCJG \
  | 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: 1cbebd0db5aeb57aa4a27565c14c2249b2d0ee41dad46d0314a9823f685f125c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e61a13ba6762a99bbbfd2f0232b50ca72a4351d4886b42d54e007ca6641c7147",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2006-10-04T12:21:34Z",
    "title_canon_sha256": "174039fb838894b2502d34f4329b75d5eb9a6cc8c1e5f57f401c67338b467168"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0610143",
    "kind": "arxiv",
    "version": 1
  }
}