Pith Number

pith:EVLUMDKP

pith:2013:EVLUMDKPTS4SB7QCH5ZWTQPY7G

not attested not anchored not stored refs pending

Quadratic forms and Clifford algebras on derived stacks

Gabriele Vezzosi

arxiv:1309.1879 v3 · 2013-09-07 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVLUMDKPTS4SB7QCH5ZWTQPY7G}

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	2026-05-18T01:12:25.423393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2557460d4f9cb920fe023f7369c1f8f9bc686ab476b572b73c146692b7f7f384

Aliases

arxiv: 1309.1879 · arxiv_version: 1309.1879v3 · doi: 10.48550/arxiv.1309.1879 · pith_short_12: EVLUMDKPTS4S · pith_short_16: EVLUMDKPTS4SB7QC · pith_short_8: EVLUMDKP

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/EVLUMDKPTS4SB7QCH5ZWTQPY7G \
  | 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: 2557460d4f9cb920fe023f7369c1f8f9bc686ab476b572b73c146692b7f7f384

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0070720f01634192ed56e3e431995aa3a98a163a14e3059ed3fe60e5e1ae2dc",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-09-07T16:13:06Z",
    "title_canon_sha256": "c82c09af005cccdf0c5a242685dc0bd83247ad68482aea8058776bb2da985723"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1879",
    "kind": "arxiv",
    "version": 3
  }
}