Pith Number

pith:EVKZP7LK

pith:2010:EVKZP7LKLDNO7VC5XN5KWKHSGM

not attested not anchored not stored refs pending

Parallelogram decompositions and generic surfaces in H^{hyp}(4)

Duc-Manh Nguyen

arxiv:1012.0994 v1 · 2010-12-05 · 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{EVKZP7LKLDNO7VC5XN5KWKHSGM}

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	2026-05-18T01:22:29.176261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

255597fd6a58daefd45dbb7aab28f2331190c09855b23d4c02ca45e3f3a79fca

Aliases

arxiv: 1012.0994 · arxiv_version: 1012.0994v1 · doi: 10.48550/arxiv.1012.0994 · pith_short_12: EVKZP7LKLDNO · pith_short_16: EVKZP7LKLDNO7VC5 · pith_short_8: EVKZP7LK

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/EVKZP7LKLDNO7VC5XN5KWKHSGM \
  | 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: 255597fd6a58daefd45dbb7aab28f2331190c09855b23d4c02ca45e3f3a79fca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "beee44c0b7cf56d94dbde34333c288cd6ddfa4a90d24e28b18bb1bab05b8d275",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2010-12-05T13:03:40Z",
    "title_canon_sha256": "00e905b1a4979122b09478b748e14ecb843d9d04abca166251222f3fef218679"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0994",
    "kind": "arxiv",
    "version": 1
  }
}