Pith Number

pith:UT6DUT7U

pith:2010:UT6DUT7UIM4CDDKWFCFU2XPLVR

not attested not anchored not stored refs pending

Stable categories and reconstruction

Jeremy Rickard, Raphael Rouquier

arxiv:1008.1976 v1 · 2010-08-11 · math.RT · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UT6DUT7UIM4CDDKWFCFU2XPLVR}

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	2026-05-18T04:42:22.592290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4fc3a4ff44338218d56288b4d5debac725357a0b2d592f99bd38feb4080528f

Aliases

arxiv: 1008.1976 · arxiv_version: 1008.1976v1 · doi: 10.48550/arxiv.1008.1976 · pith_short_12: UT6DUT7UIM4C · pith_short_16: UT6DUT7UIM4CDDKW · pith_short_8: UT6DUT7U

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/UT6DUT7UIM4CDDKWFCFU2XPLVR \
  | 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: a4fc3a4ff44338218d56288b4d5debac725357a0b2d592f99bd38feb4080528f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6d03128a4562df294bb3f563e9e67e85891f6e5d8f59728dcd6365de94ae22e",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2010-08-11T19:38:41Z",
    "title_canon_sha256": "b11779297c80f5ded71037e69fd2e2b693161ddad8020a1f8dfe61dfbfe34792"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1976",
    "kind": "arxiv",
    "version": 1
  }
}