Pith Number

pith:NJER6KGV

pith:2017:NJER6KGVTF3OUQRXZWH7L2JZBW

not attested not anchored not stored refs pending

Representations of surface groups with finite mapping class group orbits

Indranil Biswas, Mahan Mj, Ramanujan Santharoubane, Thomas Koberda

arxiv:1702.03622 v1 · 2017-02-13 · math.GT · 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{NJER6KGVTF3OUQRXZWH7L2JZBW}

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	2026-05-18T00:50:53.366640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a491f28d59976ea4237cd8ff5e9390da9eef6cca3c75e2ad0b00782fa113295

Aliases

arxiv: 1702.03622 · arxiv_version: 1702.03622v1 · doi: 10.48550/arxiv.1702.03622 · pith_short_12: NJER6KGVTF3O · pith_short_16: NJER6KGVTF3OUQRX · pith_short_8: NJER6KGV

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/NJER6KGVTF3OUQRXZWH7L2JZBW \
  | 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: 6a491f28d59976ea4237cd8ff5e9390da9eef6cca3c75e2ad0b00782fa113295

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d287899ced64cc4ba580ebfb184e0f36b0a24ca6e35d86b31c803f1623df492",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-02-13T04:15:13Z",
    "title_canon_sha256": "bf3393640ef912167ad6656115f127e5c739fd01ec94eaf38a338fd4ce1ea0e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03622",
    "kind": "arxiv",
    "version": 1
  }
}