Pith Number

pith:CNKNZBF5

pith:2009:CNKNZBF5SPRRULHNWAJ3MVDWM7

not attested not anchored not stored refs pending

On quasiconformal harmonic maps between surfaces

David Kalaj

arxiv:0905.0699 v4 · 2009-05-05 · math.CV · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CNKNZBF5SPRRULHNWAJ3MVDWM7}

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	2026-05-18T04:16:30.995085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1354dc84bd93e31a2cedb013b6547667f1581b2c49a0c19057aeb3907a582761

Aliases

arxiv: 0905.0699 · arxiv_version: 0905.0699v4 · doi: 10.48550/arxiv.0905.0699 · pith_short_12: CNKNZBF5SPRR · pith_short_16: CNKNZBF5SPRRULHN · pith_short_8: CNKNZBF5

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/CNKNZBF5SPRRULHNWAJ3MVDWM7 \
  | 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: 1354dc84bd93e31a2cedb013b6547667f1581b2c49a0c19057aeb3907a582761

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dc4ed4406b696a6042a821f4480ab549bdb0a74197096f4119d1cc98d55280c",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2009-05-05T20:32:20Z",
    "title_canon_sha256": "97a001197fe3dbc17cee710373cc115c74158f541d09fb647244f4346d8c594f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0699",
    "kind": "arxiv",
    "version": 4
  }
}