Pith Number

pith:BZEGJHQI

pith:1994:BZEGJHQISURM6NV4ZXUUTFEU5K

not attested not anchored not stored refs pending

A blow-up construction and graph coloring

Paolo Aluffi

arxiv:alg-geom/9401007 v1 · 1994-01-25 · 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{BZEGJHQISURM6NV4ZXUUTFEU5K}

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	2026-05-18T03:58:14.601654Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e48649e089522cf36bccde9499494eaaa5177902ffc39b3f3648e1ce2103c5a

Aliases

arxiv: alg-geom/9401007 · arxiv_version: alg-geom/9401007v1 · doi: 10.48550/arxiv.alg-geom/9401007 · pith_short_12: BZEGJHQISURM · pith_short_16: BZEGJHQISURM6NV4 · pith_short_8: BZEGJHQI

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/BZEGJHQISURM6NV4ZXUUTFEU5K \
  | 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: 0e48649e089522cf36bccde9499494eaaa5177902ffc39b3f3648e1ce2103c5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bcc7bca93e092c3ee5eb5ab5cb2b64ec2c1f081438645ba019c228be9b455c9",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1994-01-25T19:08:24Z",
    "title_canon_sha256": "035f4c6f09d6ca59037270049e2c150cca3285f72dbee6dcffb8b524e087c052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9401007",
    "kind": "arxiv",
    "version": 1
  }
}