Pith Number

pith:C4QEMQRZ

pith:2013:C4QEMQRZKE4NVS33MUB2J4T64E

not attested not anchored not stored refs pending

On computing Belyi maps

Jeroen Sijsling, John Voight

arxiv:1311.2529 v3 · 2013-11-11 · math.NT · math.AG · math.CV · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4QEMQRZKE4NVS33MUB2J4T64E}

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	2026-05-18T00:01:11.001896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17204642395138dacb7b6503a4f27ee11eda0c841cc0eeaadab59580c228692d

Aliases

arxiv: 1311.2529 · arxiv_version: 1311.2529v3 · doi: 10.48550/arxiv.1311.2529 · pith_short_12: C4QEMQRZKE4N · pith_short_16: C4QEMQRZKE4NVS33 · pith_short_8: C4QEMQRZ

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/C4QEMQRZKE4NVS33MUB2J4T64E \
  | 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: 17204642395138dacb7b6503a4f27ee11eda0c841cc0eeaadab59580c228692d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02cc648f4bd8437a7eb5a363a4dec68dd46d0735c65612fefde9a2e063bdc099",
    "cross_cats_sorted": [
      "math.AG",
      "math.CV",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2013-11-11T18:52:28Z",
    "title_canon_sha256": "a219f3478ea8d81c28461d3459fd13a24b5667deecf948b293160f8bee61c2ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2529",
    "kind": "arxiv",
    "version": 3
  }
}