Pith Number

pith:OOD2436H

pith:2009:OOD2436HQUBO6ZQ23ICXOXFNYU

not attested not anchored not stored refs pending

Splittings and C-complexes

Gadde Swarup, Mahan Mj, Peter Scott

arxiv:0906.1149 v2 · 2009-06-05 · math.GR · 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{OOD2436HQUBO6ZQ23ICXOXFNYU}

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	2026-05-18T02:38:18.827262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7387ae6fc78502ef661ada05775cadc53d01a5c3788fc027f9d28ffb259b7693

Aliases

arxiv: 0906.1149 · arxiv_version: 0906.1149v2 · doi: 10.48550/arxiv.0906.1149 · pith_short_12: OOD2436HQUBO · pith_short_16: OOD2436HQUBO6ZQ2 · pith_short_8: OOD2436H

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/OOD2436HQUBO6ZQ23ICXOXFNYU \
  | 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: 7387ae6fc78502ef661ada05775cadc53d01a5c3788fc027f9d28ffb259b7693

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09d79d60f334fa4e5e517a39eb7fdcbf959d9434275ad2cb3b02a1b941caab93",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2009-06-05T15:39:24Z",
    "title_canon_sha256": "b4b4d81debccc30684540284bfcb1ca292fac4c41df6483eedf3a5922a0372dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1149",
    "kind": "arxiv",
    "version": 2
  }
}