Pith Number

pith:KSRJBJVL

pith:1995:KSRJBJVLONC2RPYJ4KQNRUU3TZ

not attested not anchored not stored refs pending

On the tautological ring of $\M _g$

Eduard Looijenga

arxiv:alg-geom/9501010 v1 · 1995-01-20 · alg-geom · 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{KSRJBJVLONC2RPYJ4KQNRUU3TZ}

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	2026-05-18T01:37:43.023800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54a290a6ab7345a8bf09e2a0d8d29b9e6cdd7ea0144de9539e313bc75c7e6d19

Aliases

arxiv: alg-geom/9501010 · arxiv_version: alg-geom/9501010v1 · doi: 10.48550/arxiv.alg-geom/9501010 · pith_short_12: KSRJBJVLONC2 · pith_short_16: KSRJBJVLONC2RPYJ · pith_short_8: KSRJBJVL

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/KSRJBJVLONC2RPYJ4KQNRUU3TZ \
  | 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: 54a290a6ab7345a8bf09e2a0d8d29b9e6cdd7ea0144de9539e313bc75c7e6d19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e569a2c46ff5798bcc12d03d5baabdedbfcc517ef39d64478720c3861856c42c",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1995-01-20T09:07:01Z",
    "title_canon_sha256": "bb69e2452db0e0ab4745ecd364822c28bde5bc3857a4635532b50cea61955395"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9501010",
    "kind": "arxiv",
    "version": 1
  }
}