Pith Number

pith:L3GFFVC2

pith:2009:L3GFFVC2TRD4GAZAJLBL2K5UHK

not attested not anchored not stored refs pending

Derived deformations of schemes

J.P.Pridham

arxiv:0908.1963 v1 · 2009-08-13 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L3GFFVC2TRD4GAZAJLBL2K5UHK}

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	2026-05-18T02:43:26.551197Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ecc52d45a9c47c303204ac2bd2bb43a9910590736a65fd3e8125dcc106ae6e6

Aliases

arxiv: 0908.1963 · arxiv_version: 0908.1963v1 · doi: 10.48550/arxiv.0908.1963 · pith_short_12: L3GFFVC2TRD4 · pith_short_16: L3GFFVC2TRD4GAZA · pith_short_8: L3GFFVC2

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/L3GFFVC2TRD4GAZAJLBL2K5UHK \
  | 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: 5ecc52d45a9c47c303204ac2bd2bb43a9910590736a65fd3e8125dcc106ae6e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "016c0a39c0ed39fffb119dd681a200b8ad50fea5d2b18c91b5ecea245a11ae17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-08-13T19:38:50Z",
    "title_canon_sha256": "7c08490e2dbfec280c08edabd300934c24858f20f038171b8423ccbd705aed33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1963",
    "kind": "arxiv",
    "version": 1
  }
}