Pith Number

pith:CKNSI73H

pith:1994:CKNSI73H3HH4QN4ZKTTBE5PFTT

not attested not anchored not stored refs pending

Combinatorial and algebro-geometric cohomology classes on the moduli spaces of curves

Enrico Arbarello, Maurizio Cornalba

arxiv:alg-geom/9406008 v1 · 1994-06-30 · alg-geom · hep-th · 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{CKNSI73H3HH4QN4ZKTTBE5PFTT}

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	2026-05-18T01:37:43.152725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

129b247f67d9cfc8379954e61275e59cd038c447d6c19992d9889dd39f2fb6ba

Aliases

arxiv: alg-geom/9406008 · arxiv_version: alg-geom/9406008v1 · doi: 10.48550/arxiv.alg-geom/9406008 · pith_short_12: CKNSI73H3HH4 · pith_short_16: CKNSI73H3HH4QN4Z · pith_short_8: CKNSI73H

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/CKNSI73H3HH4QN4ZKTTBE5PFTT \
  | 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: 129b247f67d9cfc8379954e61275e59cd038c447d6c19992d9889dd39f2fb6ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c59cbd03bd24242ff218b964941a8516d05abfda09799355471a06c6611ef91b",
    "cross_cats_sorted": [
      "hep-th",
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1994-06-30T17:18:02Z",
    "title_canon_sha256": "e838b6bc03a0c8b37d50a31170e342c6b6cb5e2b3ccc72f920e7e55d51555edb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9406008",
    "kind": "arxiv",
    "version": 1
  }
}