Pith Number

pith:EIM7TBZT

pith:2010:EIM7TBZT7F3QRUGAPTRPRQX35H

not attested not anchored not stored refs pending

The cone of Hilbert nullforms

Vladimir L. Popov

arxiv:1009.6107 v1 · 2010-09-30 · math.AG · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EIM7TBZT7F3QRUGAPTRPRQX35H}

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	2026-05-18T04:40:01.056328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2219f98733f97708d0c07ce2f8c2fbe9da425ba08279699de269344c87e2a656

Aliases

arxiv: 1009.6107 · arxiv_version: 1009.6107v1 · doi: 10.48550/arxiv.1009.6107 · pith_short_12: EIM7TBZT7F3Q · pith_short_16: EIM7TBZT7F3QRUGA · pith_short_8: EIM7TBZT

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/EIM7TBZT7F3QRUGAPTRPRQX35H \
  | 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: 2219f98733f97708d0c07ce2f8c2fbe9da425ba08279699de269344c87e2a656

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af2c777b4dafb1a998243caf038f00dc9828fe85ac954f918d2b762e2e3d5e86",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-09-30T11:56:49Z",
    "title_canon_sha256": "87377f56426740a2bde1e656614901b14af4c43534ffd3cced5ab015ca62c1af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.6107",
    "kind": "arxiv",
    "version": 1
  }
}