Pith Number

pith:SKJKXVD6

pith:2008:SKJKXVD6YDBIGPQQ6CQLVKPSGM

not attested not anchored not stored refs pending

Cohomology of SL(2,C) character varieties of surface groups and the action of the Torelli group

Georgios D. Daskalopoulos, Graeme Wilkin, Richard A. Wentworth

arxiv:0808.0131 v2 · 2008-08-01 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SKJKXVD6YDBIGPQQ6CQLVKPSGM}

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	2026-05-18T04:14:18.389908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9292abd47ec0c2833e10f0a0baa9f233077ebc0579e5cea07d8cd3a3cec0b117

Aliases

arxiv: 0808.0131 · arxiv_version: 0808.0131v2 · doi: 10.48550/arxiv.0808.0131 · pith_short_12: SKJKXVD6YDBI · pith_short_16: SKJKXVD6YDBIGPQQ · pith_short_8: SKJKXVD6

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/SKJKXVD6YDBIGPQQ6CQLVKPSGM \
  | 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: 9292abd47ec0c2833e10f0a0baa9f233077ebc0579e5cea07d8cd3a3cec0b117

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d751c0a4ff4d6e57326672c561add9b0629b0d76a0a1957c45c875a22d9f503",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2008-08-01T14:51:25Z",
    "title_canon_sha256": "9f81aa6820801a97deace89adf286d6c8a6d75cf51bf4f6b20743da5a3864296"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.0131",
    "kind": "arxiv",
    "version": 2
  }
}