Pith Number

pith:VHWA4DFC

pith:2013:VHWA4DFCYLYQO7VBXPINQ2O4ZW

not attested not anchored not stored refs pending

Nonexistence of quasiconformal maps between certain metric measure spaces

Enrico Le Donne, Katrin F\"assler, Pekka Koskela

arxiv:1312.1305 v1 · 2013-12-04 · math.MG · math.CA · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHWA4DFCYLYQO7VBXPINQ2O4ZW}

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	2026-05-18T03:05:28.857681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9ec0e0ca2c2f1077ea1bbd0d869dccd9c8e0e63d1f5f08c24aea0124adca19c

Aliases

arxiv: 1312.1305 · arxiv_version: 1312.1305v1 · doi: 10.48550/arxiv.1312.1305 · pith_short_12: VHWA4DFCYLYQ · pith_short_16: VHWA4DFCYLYQO7VB · pith_short_8: VHWA4DFC

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/VHWA4DFCYLYQO7VBXPINQ2O4ZW \
  | 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: a9ec0e0ca2c2f1077ea1bbd0d869dccd9c8e0e63d1f5f08c24aea0124adca19c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1c29af6b74be64e19e91de3b6ab026414ed67b3a0cbca63e7de9cc96cb74b01",
    "cross_cats_sorted": [
      "math.CA",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-12-04T19:59:20Z",
    "title_canon_sha256": "b40b55d241224a55ed1cb47ffde84cb94a09104c61e05865d02010c7ee2071ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1305",
    "kind": "arxiv",
    "version": 1
  }
}