Pith Number

pith:3K4SDONH

pith:2014:3K4SDONHW5QL2ZFQW4AL5XCHAW

not attested not anchored not stored refs pending

Metrics with four conic singularities and spherical quadrilaterals

Alexandre Eremenko, Andrei Gabrielov, Vitaly Tarasov

arxiv:1409.1529 v1 · 2014-09-04 · math.CV · math.CA · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3K4SDONHW5QL2ZFQW4AL5XCHAW}

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	2026-05-18T01:04:00.495086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dab921b9a7b760bd64b0b700bedc4705b492f69fc21f7aa5fef8782b2d8e8d80

Aliases

arxiv: 1409.1529 · arxiv_version: 1409.1529v1 · doi: 10.48550/arxiv.1409.1529 · pith_short_12: 3K4SDONHW5QL · pith_short_16: 3K4SDONHW5QL2ZFQ · pith_short_8: 3K4SDONH

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/3K4SDONHW5QL2ZFQW4AL5XCHAW \
  | 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: dab921b9a7b760bd64b0b700bedc4705b492f69fc21f7aa5fef8782b2d8e8d80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f78d784336c59f55d07c484c03fe6fe9d2e9065ca065070983aebf269561d5b",
    "cross_cats_sorted": [
      "math.CA",
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-09-04T18:50:45Z",
    "title_canon_sha256": "f537c8d63febf53d31c50cfd67fe329336f18b44820740b08fdca61fbcd9dc4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1529",
    "kind": "arxiv",
    "version": 1
  }
}