Pith Number

pith:5IQTG6QG

pith:2012:5IQTG6QGYKYUCXLAEPMQF6S7CN

not attested not anchored not stored refs pending

Signatures of Branched Coverings

Askold Khovanskii, Yuri Burda

arxiv:1207.1211 v1 · 2012-07-05 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5IQTG6QGYKYUCXLAEPMQF6S7CN}

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	2026-05-18T03:51:46.615153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea21337a06c2b1415d6023d902fa5f135deb9866a8200781d5719e3324bdc308

Aliases

arxiv: 1207.1211 · arxiv_version: 1207.1211v1 · doi: 10.48550/arxiv.1207.1211 · pith_short_12: 5IQTG6QGYKYU · pith_short_16: 5IQTG6QGYKYUCXLA · pith_short_8: 5IQTG6QG

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/5IQTG6QGYKYUCXLAEPMQF6S7CN \
  | 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: ea21337a06c2b1415d6023d902fa5f135deb9866a8200781d5719e3324bdc308

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3021297d57e7e639e74a5ff79357f7a5451463dd6edeea33f3e72272d4a11fcd",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-07-05T10:23:27Z",
    "title_canon_sha256": "6e1a895c5d20df8f3f941b621b207f01ce65e24ddcf17abc789636382383e8ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1211",
    "kind": "arxiv",
    "version": 1
  }
}