Pith Number

pith:L2EKRIYO

pith:2009:L2EKRIYOWRLLE4IMCODGDW2BY7

not attested not anchored not stored refs pending

Integrating morphisms of Lie 2-algebras

Behrang Noohi

arxiv:0910.1818 v3 · 2009-10-09 · math.QA · math.CT · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2EKRIYOWRLLE4IMCODGDW2BY7}

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	2026-05-17T23:53:19.886560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e88a8a30eb456b2710c138661db41c7f1dc9da32f73afc06aaff6c80cec280e

Aliases

arxiv: 0910.1818 · arxiv_version: 0910.1818v3 · doi: 10.48550/arxiv.0910.1818 · pith_short_12: L2EKRIYOWRLL · pith_short_16: L2EKRIYOWRLLE4IM · pith_short_8: L2EKRIYO

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/L2EKRIYOWRLLE4IMCODGDW2BY7 \
  | 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: 5e88a8a30eb456b2710c138661db41c7f1dc9da32f73afc06aaff6c80cec280e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfabd27bac2434139bbeac1aeb5e5a29e2ad0280190d22bf1d9160fa30bea974",
    "cross_cats_sorted": [
      "math.CT",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2009-10-09T19:13:11Z",
    "title_canon_sha256": "7bb9d91814b4ee3dac539f0531772d37401c7634504dea06c9be6039205fa4cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1818",
    "kind": "arxiv",
    "version": 3
  }
}