Pith Number

pith:UZWAB4U7

pith:2006:UZWAB4U7IRJYNDOWNJTGEKZ27M

not attested not anchored not stored refs pending

Bipartite-uniform hypermaps on the sphere

Antonio Breda d'Azevedo, Rui Duarte

arxiv:math/0607281 v1 · 2006-07-12 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UZWAB4U7IRJYNDOWNJTGEKZ27M}

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	2026-05-18T00:57:32.347568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a66c00f29f4453868dd66a66622b3afb39a57e3b4172da9788f0161da3b92d54

Aliases

arxiv: math/0607281 · arxiv_version: math/0607281v1 · doi: 10.48550/arxiv.math/0607281 · pith_short_12: UZWAB4U7IRJY · pith_short_16: UZWAB4U7IRJYNDOW · pith_short_8: UZWAB4U7

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/UZWAB4U7IRJYNDOWNJTGEKZ27M \
  | 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: a66c00f29f4453868dd66a66622b3afb39a57e3b4172da9788f0161da3b92d54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bacd039bd779299762de2bdcf0d6b642baf187d641d940b62a9852efa460173",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2006-07-12T09:14:46Z",
    "title_canon_sha256": "1ff33ee9d2de80e0b6cfb84e3f4182b9ef7c2f522b6d8cdf3dd821240dcd08f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0607281",
    "kind": "arxiv",
    "version": 1
  }
}