Pith Number

pith:WTBKMVQ6

pith:2007:WTBKMVQ6GEXCOGYQURN2QQULWV

not attested not anchored not stored refs pending

On the classification of rank two representations of quasiprojective fundamental groups

Carlos T. Simpson (JAD), Kevin Corlette (1-CHI)

arxiv:math/0702287 v2 · 2007-02-10 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTBKMVQ6GEXCOGYQURN2QQULWV}

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	2026-05-18T03:02:21.776117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c2a6561e312e271b10a45ba8428bb55f0eccbef5b3b5ef3e4de18f9baded7e

Aliases

arxiv: math/0702287 · arxiv_version: math/0702287v2 · doi: 10.48550/arxiv.math/0702287 · pith_short_12: WTBKMVQ6GEXC · pith_short_16: WTBKMVQ6GEXCOGYQ · pith_short_8: WTBKMVQ6

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/WTBKMVQ6GEXCOGYQURN2QQULWV \
  | 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: b4c2a6561e312e271b10a45ba8428bb55f0eccbef5b3b5ef3e4de18f9baded7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c9351e53e8893acaf05a8d73ee979debdd4b4cfb9e6ec218eee05c49b6c06f2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2007-02-10T17:44:30Z",
    "title_canon_sha256": "e3df8b0fe971b4841cf5abafce1ed64ddab55efa268490c627c017634750056a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0702287",
    "kind": "arxiv",
    "version": 2
  }
}